Ultralow Noise, High Rejection
Low Dropout Regulators
Analog Devices Introduces the World’s Lowest Noise LDO
The ADM7154/ADM7155 are ultralow noise LDO (low dropout) regulators for
RF (radio frequency) signal devices. The ADM7154/ADM7155 operate from
2.3 V to 5.5 V, provide up to 600 mA of output current, and support output
voltages from 1.2 V to 3.3 V. The LDOs achieve an output NSD (noise spectral
density) of 1.5 nV/√Hz above 100 kHz, which significantly reduces VCO (voltage
controlled oscillator) phase noise in point-to-point microwave radios, satellite
communications, defense electronics, and other wideband applications.
Features
• VIN range: 2.3 V to 5.5 V
• Fixed/adjustable output voltage range: 1.2 V to 3.3 V
• IOUT max: 600 mA
• Low noise (CBYP = 1 μF)
• 0.9 μV rms total integrated noise from
100 Hz to 100 kHz
NOISE SPECTRAL DENSITY (nV/√Hz)
10k
NOISE FLOOR
1.0𝛍F
3.3𝛍F
10𝛍F
33𝛍F
100𝛍F
330𝛍F
1000𝛍F
1k
100
• 2 nV√Hz above 4 kHz
• Power supply rejection ratio (PSRR):
• 90 dB from 1 kHz to 100 kHz
• VIN ∙ 3.8 V, VOUT ∙ 3.3 V @ 600 mA
• 58 dB at 1 MHz
• VIN ∙ 3.8 V, VOUT ∙ 3.3 V @ 600 mA
• 8-lead LFCSP and 8-lead SOIC packages
10
Applications
• Regulated power noise sensitive applications
1
• RF mixers, phase-locked loops (PLLs)
• Voltage controlled oscillators (VCOs)
0.1
0.1
• PLLs with integrated VCOs
1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
• Communications and infrastructure
• Cable digital-to-analog converter (DAC) drivers
• Backhaul and microwave links
ADM7154 noise spectral density.
analog.com/LDO
Ultralow Noise LDOs
ADM7150, ADM7151, ADM7154, and ADM7155
12V
12VIN
ADM7150
5V
LDO
ADM7150
5V
VCO
LDO
VVCO
GND
PLL/VCO
GND
(ADF5355)
ADM7150
3.3V
LDO
3.8V
ADM7154
3.3V
CLOCKING
(AD9525)
LDO
VDD
GND
GND
GND
GND
PLL/VCO apps diagram.
Clocking apps diagram.
0
−50
−40
−90
PSRR (dB)
VCO PHASE NOISE (dBc/Hz)
−70
−110
−130
−60
−80
−100
−150
−170
1𝛍F
10𝛍F
100𝛍F
1000𝛍F
−20
−120
−140
1k
10k
100k
1M
10M
1
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY OFFSET (Hz)
ADM7154 PSRR vs. frequency, VOUT ∙ 3.3 V, 400 mA load, 500 mV headroom.
ADF5355 VCO noise, powered by ADM7150.
Ultralow Noise LDO Selection Table
Part Number
1
V Options
VIN Min VIN Max OUT
I
or Adj Range OUT
(V)
(V)
(mA)
(V)
PSRR @
100 kHz
(dB)
RMS Noise @
PSRR @
Noise Spectral Dropout @
1 MHz 100 Hz to 100 kHz Density 100 kHz Rated IOUT
(𝛍V rms)1
(dB)
(nV/√Hz)
Typ (mV)
Total
Accuracy
Max (∙%)
Package
ADM7150
4.5
16
Fixed:
1.5 to 5.0
800
94
62
1
2
600
2
3 mm × 3 mm,
8-lead LFCSP,
8-lead SOIC
ADM7151
4.5
16
Adjustable:
1.5 to 5.1
800
94
62
1
2
600
2
3 mm × 3 mm,
8-lead LFCSP,
8-lead SOIC
ADM7154 New
2.3
5.5
Fixed:
1.2 to 3.3
600
90
58
1
1.2
120
2
3 mm × 3 mm,
8-lead LFCSP,
8-lead SOIC
ADM7155 New
2.3
5.5
Adjustable:
1.2 to 3.3
600
90
58
1
1.2
120
2
3 mm × 3 mm,
8-lead LFCSP,
8-lead SOIC
HMC976LP3E
3.3
5.5
1.8 to 5.1
400
45
30
1.5
3
300
2
3 mm × 3 mm,
16-lead LFCSP
Noise independent of fixed output voltage.
| Low Dropout Regulators
2
Ultralow Noise Quad Output LDOs
HMC860LP3E and HMC1060LP3E
1k
NOISE SPECTRAL DENSITY (nV/√Hz)
The HMC860LP3E and HMC1060LP3E are ultralow noise, quad-output
linear voltage regulators targeted at high performance applications requiring superb power supply isolation. Maximum 240 mA and 500 mA of
current, respectively, distributed between four independent outputs, enable
the HMC860LP3E and HMC1060LP3E to supply all of the power needs of
wideband PLL with integrated VCO products, such as the HMC830LP6GE. An
integrated PTAT (proportional to absolute temperature) feature, enabled via
an external pin, allows the HMC1060LP3E to scale the supply voltage with
temperature in order to maximize phase noise and output power performance of wideband with integrated VCO products, as well as other devices
powered by the HMC1060LP3E.
HMC1060LP3E Features
VR1 = 100mA
VR2 = 50mA
VR3 = 50mA
VR4 = 300mA
100
10
1
0.1
• Ultralow noise density: 3 nV/√Hz at 10 kHz, 7 nV/√Hz at 1 kHz
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
• High PSRR: 80 dB at 1 kHz; 60 dB at 1 MHz
HMC1060LP3E noise spectral density vs. frequency.
• Four adjustable voltage outputs:
• VR1: 100 mA at 1.8 V to 5.2 V
0
• VR2 and VR3: 50 mA at 1.8 V to 5.2 V
HMC507LP5E VCO POWERED BY A LOW NOISE
LABORATORY POWER SUPPLY
• VR4: 300 mA at 1.8 V to 5.2 V
PHASE NOISE (dBc/Hz)
• Optional proportional to temperature (PTAT) output voltages:
7%/125°C
• Thermal protection
• Low power-down current: <1 μA
• 16-lead, 3 mm × 3 mm SMT package: 9 mm2
−50
−100
−150
Applications
HMC507LP5E VCO POWER BY HMC1060LP3E
• Ultralow noise frequency generation (PLLs, VCOs, PLLs with
integrated VCOs)
−200
100
1k
• RF and mixed-signal supply
10k
100k
1M
10M
100M
OFFSET FREQUENCY (Hz)
HMC1060LP3E vs. typical low noise laboratory power supply.
HMC830LP6GE
HMC830LP6GE
WIDEBAND PLL WITH VCO
25MHz TO 3000MHz
LOW JITTER
(112fs RMS JITTER)
WIDEBAND PLL WITH VCO
LOW PHASE NOISE (141dBc/Hz
@ 2GHz AND 10kHz OFFSET)
VCP
PLL
5V
HMC860LP3E
PLL
REF
CLOCK
VCP
3.3V
5V
HMC860LP3E 3.3V
HMC900LP5E
DUAL BASEBAND LPF
3.5MHz TO 50MHz, 3dB BW
30dBm OIP3
ADC
FPGA/DSP
RFIN
0
90°
ADC
HMC597LP4E
HMC960LP4E
WIDEBAND DIRECT DEMODULATOR
100MHz TO 4000MHz
HIGH LINEARITY 25dBm OIP3 AND 60dBm IIP2
55dB SIDEBAND SUPPRESSION
DUAL CHANNEL VGA
DC 100MHz
30dBm OIP3
HMCAD1520
HMC976LP3E
MULTICHANNEL ADC
12-/14-BIT @ 320MSPS/105MSPS
HMC6383 evaluation development kit block diagram.
Ultralow Noise LDO Selection Table
Part Number
V Options
PSRR @
I
VIN Min VIN Max OUT
or Adj Range OUT 100 kHz
(V)
(V)
(mA)
(V)
(dB)
PSRR @
1 MHz
(dB)
RMS Noise @
100 Hz to 100 kHz
(𝛍V rms)
Noise Spectral
Total
Regulated
Density 100 kHz Accuracy
Outputs
(nV/√Hz)
Max (∙%)
Package
HMC860LP3E
3.35
5.6
2.5 to 5.2
240
65
60
1.5
3
2
4
3 mm × 3 mm,
16-lead LFCSP
HMC1060LP3E
3.35
5.6
1.8 to 5.2
500
71
60
1.5
3
2
4
3 mm × 3 mm,
16-lead LFCSP
analog.com/LDO | 3
High Voltage LDOs
ADP7118, ADP7142, ADP7112, ADP7102, ADP7104, and ADP7105
ADM7160
LDO
+15V
+16.5V
5VIN
ADP7118
LDO
ADP5070/
ADP5071
−16.5V
ADP7182
LDO
−15VOUT
+15V
REF
+15VOUT
1.8V
AMP/
FILTER
ADC
−15V
−15V
ADC/AMP applications diagram.
7V
5V
ADP7118
LDO
24V
24VIN
2.5V
ADM7160
LDO
3-TAP
TRANSFORMER
FLYBACK OR
AC RECTIFIER
REF
18V
ADP7142
LDO
+18V
+18V
2.5V
AMP/
FILTER
DAC
ADP7182
LDO
−20V
−18V
−18V
−18V
Isolated ADC/AMP applications diagram.
ADP7112: 20V/200mA
ADP7118: 20V/200mA
ADP7142: 40V/200mA
VIN = 9V
VIN
CIN
2.2𝛍F
OFF
ADP7102: 20V/300mA
ADP7104: 20V/500mA
VOUT = 5V
VOUT
VIN = 9V
COUT
2.2𝛍F
SENSE/ADJ
SS
ON
EN
GND
CIN +
1µF
OFF
R1
ON
100k𝛀
VOUT
SENSE
EN/
UVLO
R2
100k𝛀
CSS
1nF
VIN
ADP7105: 20V/500mA
VOUT = 5V
+ COUT
1𝛍F
RPG
100k𝛀
ON
OFF
CIN +
1𝛍F
100k𝛀
100k𝛀
PG
PG
VIN
VOUT
SENSE
VOUT = 5V
+ COUT
1𝛍F
100k𝛀
EN/
UVLO
PG
PG
GND SS
GND
PACKAGE: 2mm × 2mm LFCSP
1mm × 1.2mm WLCSP (ADP7112)
CSS
PACKAGE: 3mm × 3mm LFCSP
PACKAGE: 3mm × 3mm LFCSP
ADP7102/ADP7104.
ADP7118/ADP7142/ADP7112*.
VIN = 9V
ADP7105.
*The ADP7118/ADP7142/ADP7112 architecture allows any fixed output voltage to be set to a higher voltage with an external voltage divider.
High Voltage LDO Selection Table
1
Part Number
VIN Range
(V)
VOUT Fixed
(V)
VOUT Adj
Range (V)
IOUT
(mA)
Soft
Start
Power
Good
RMS Noise @
10 Hz to 100 kHz
(𝛍V rms)1
PSRR @
100 kHz
(dB)
PSRR @
1 MHz
(dB)
Package
ADP7118 New
2.7 to 20
1.2 to 5
1.2 to 19
200
Yes
No
11
68
50
2 mm × 2 mm, 6-lead LFCSP,
8-lead SOIC, 5-lead TSOT
ADP7112 New
2.7 to 20
1.2 to 5
1.2 to 19
200
Yes
No
11
68
50
1 mm × 1.2 mm, 6-ball WLCSP
ADP7142 New
2.7 to 40
1.2 to 5
1.2 to 39
200
Yes
No
11
68
50
2 mm × 2 mm, 6-lead LFCSP,
8-lead SOIC, 5-lead TSOT
ADP7102
3.3 to 20
1.5 to 9
1.22 to 19
300
No
Yes
15
60
40
3 mm × 3 mm,
8-lead LFCSP, 8-lead SOIC
ADP7104
3.3 to 20
1.5 to 9
1.22 to 19
500
No
Yes
15
60
40
3 mm × 3 mm,
8-lead LFCSP, 8-lead SOIC
ADP7105
3.3 to 20
1.8, 3.3, 5
1.22 to 19
500
Yes
Yes
15
60
40
3 mm × 3 mm,
8-lead LFCSP, 8-lead SOIC
Noise independent of fixed output voltage.
| Low Dropout Regulators
4
Low Noise LDOs
ADM7160 and ADP7182
EXTERNAL AMP
5VIN
ADM7160
LDO
2.5V
V+
+ IN
ADC—AD7176
ADM660
INVERTING
CHARGE
PUMP
6VIN
AD7176 8-CHANNEL,
AMP
− IN
ADM7150
24BIT—𝚺-𝚫
5.0V
V−
PLL
ADF4355-2
LDO
−2.5V
−5V
ADP7182
LDO
ADM7150
1.8V
LDO
AD9129
RF DAC
INTEGRATED AMP
3.3VIN
−1.5V
1.8V
ADM7160
ADM660
LDO
+IN
−IN
ADM660
−1.8V
Nonisolated Σ-∆ ADC bipolar applications diagram.
0
−10
−10
ILOAD = 200mA
ILOAD = 100mA
ILOAD = 50mA
ILOAD = 10mA
ILOAD = 1mA
−30
−30
−40
−50
−60
−40
−50
−60
−70
−70
−80
−80
−90
−90
−100
−100
10
100
1k
ILOAD = −200mA
ILOAD = −100mA
ILOAD = −10mA
ILOAD = −1mA
−20
PSRR (dB)
PSRR (dB)
AD9129 RF DAC featuring ADP7182.
0
−20
−VE LDO
V−
LDO
−3.3V
ADP7182
ADC—AD7175-2
AD7175-2 8-CHANNEL,
24BIT—𝚺-𝚫
ADP7182
INVERTING
CHARGE
PUMP
−6V
INV CP
V+
10k
100k
FREQUENCY (Hz)
1M
10M
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
ADM7160 PSRR vs. frequency and load current, 1 V headroom, VOUT = 3.3 V.
ADP7182 PSRR vs. frequency, VOUT = −1.22 V vs. different load currents (ILOAD ),
VIN = −2.7 V.
Low Noise LDO Selection Table
Part
Number
1
VIN Min VIN Max
(V)
(V)
ADM7160
2.2
5.5
ADP7182
–2.7
–28
PSRR @ PSRR @
100 kHz 1 MHz
(dB)
(dB)
RMS Noise
@ 100 kHz
to 100 kHz
(𝛍V rms)1
VOUT Options
or Adj
Range (V)
IOUT
(mA)
Noise Spectral Dropout @
Total
Density 100 kHz Rated IOUT Accuracy
(nV/√Hz)
Typ (mV) Max (∙%)
1.1 to 3.3
200
54
46
9
25
150
–2.5/+1.5
2 mm × 2 mm,
6-lead LFCSP, 5-lead TSOT
–1.22 to –27 –200
45
32
18
50
185
–3/+2
5-lead TSOT,
2 mm × 2 mm, 6-lead LFCSP,
3 mm × 3 mm, 8-lead LFCSP
Package
Noise independent of fixed output voltage.
analog.com/LDO | 5
Low VIN , High Current LDOs
ADP1740, ADP1741, ADP1752, ADP1753, ADP1754, and ADP1755
AD9625
12-BIT, 2.5GSPS/2.0GSPS, 1.3V/2.5V
ANALOG-TO-DIGITAL CONVERTER
AD9680
14-BIT, 1000 MSPS JESD204B, DUAL
ANALOG-TO-DIGITAL CONVERTER
3.3V
INPUT
ADM7171
LDO
ADP1740
ADP2386
12V
INPUT
2.5V: AVDD2
1.7V
BUCK
REGULATOR
1.3V: AVDD1
LDO
ADP1740
1.3V: DRVDD1
LDO
ADM7160
1.8V: SPIVDD
ADP1741
1.25V: AVDD1
ADP1741
1.25V: DVDD
LDO
ADP2386
ADP2164
1.7V
BUCK
REGULATOR
LDO
LDO
BUCK
REGULATOR
1.25V: AVDD1_SR
3.6V
1.3V: DVDD1
ADM7171
LDO
ADM7170
LDO
ADP2370
2.5V: DVDDIO
LDO
3.8V
ADM7160
BUCK
REGULATOR
LDO
2.5V: DRVDD2
2.5V: DVDD2
1.25V: DRVDD
ADP125
5V/12V
INPUT
2.5V: AVDD2
3.3V: AVDD3
ADP125
2.5V: SPI_DVDDIO
LDO
Powering AD9680 high speed ADC.
Powering AD9625 high speed ADC.
ADP5040
5VIN
1.2A
BUCK
1.7V
1.3V
ADP1755
LDO
VDDD1P3_DIG/VDDAx
AD9361/AD9364
300mA
LDO
1.8V
300mA
LDO
3.3V
VDD_INTERFACE
VDD_GPO
Powering AD9361/AD9364 RF agile transceivers.
Low VIN, High Current LDO Selection Table
VOUT
Part
VIN Range Options or
(V)
Number
Adj Range
(V)
ADP1752 1.6 to 3.6
ADP1753 1.6 to 3.6
ADP1754 1.6 to 3.6
Fixed:
0.75 to 2.5
Adjustable:
0.75 to 3.3
Fixed:
0.75 to 2.5
IOUT Soft Power
(mA) Start Good
PSRR @
100 kHz
(dB)
PSRR @
1 MHz
(dB)
RMS Noise @
Noise Spectral Dropout @
100 Hz to 100 kHz Density 100 kHz Rated IOUT
(𝛍V rms)
(nV/√Hz)
Typ (mV)
Total
Accuracy
Max (%)
Package
4 mm × 4 mm,
16-lead LFCSP
800
Yes
Yes
54
40
23
40
70
2
800
Yes
Yes
54
40
23
40
70
2
1200
Yes
Yes
54
40
23
40
105
2
4 mm × 4 mm,
16-lead LFCSP
4 mm × 4 mm,
16-lead LFCSP
ADP1755 1.6 to 3.6
Adjustable:
0.75 to 3.3
1200
Yes
Yes
54
40
23
40
105
2
4 mm × 4 mm,
16-lead LFCSP
ADP1740 1.6 to 3.6
Fixed:
0.75 to 2.5
2000
Yes
Yes
54
40
23
40
160
2
4 mm × 4 mm,
16-lead LFCSP
ADP1741 1.6 to 3.6
Adjustable:
0.75 to 3.3
2000
Yes
Yes
54
40
23
40
160
2
4 mm × 4 mm,
16-lead LFCSP
| Low Dropout Regulators
6
Ultralow Noise (5 μV rms) Fast Transient Response LDOs
ADM7170, ADM7171, and ADM7172
ADM7170-5V
VIN = 6.5V
VIN
VIN
CIN
4.7𝛍F
VOUT = 6.0V
VOUT
VOUT
SENSE
R1
2k𝛀
COUT
4.7𝛍F
R2
10k𝛀
ON
EN
OFF
GND
SS
CSS
1nF
The ADM7170/ADM7171/ADM7172 architecture allows any fixed output voltage to be
set to a higher voltage with an external voltage divider.
Features
• Input voltage range: 2.3 V to 6.5 V
• Any fixed voltage part can be adjusted up to give a higher output voltage
• Max current rating:
• ADM7170: 500 mA
• ADM7171: 1 A
• ADM7172: 2 A
• Very low noise: 5 μV rms independent of VOUT
• BW = 100 Hz to 100 kHz, no bypass cap required
• Fast transient response: < 1.5 μs for 1 mA to 1.5 A load step
• High PSRR: >65 dB at 10 kHz; 60 dB at 100 kHz
• Low dropout voltage of 84 mV at 1 A load, VOUT = 3 V
TRIG’D
100k
NOISE SPECTRAL DENSITY (nV/√Hz)
RUN
1
CH1 PK∙PK
1.096A
2
10k
1k
100
10
1
CH1 1.00A𝛀 CH2 50.0mV
M400ns
A CH1
T
13.60%
ILOAD = 1mA
ILOAD = 10mA
ILOAD = 100mA
ILOAD = 500mA
620mA
1
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
ADM7171 full load transient response from 1 mA to 1 A for VOUT = 3.3 V.
Output noise spectral density, different output voltages, load current = 100 mA.
Ultralow Noise, Fast Transient Response LDO Selection Table
1
PSRR @
1 MHz
(dB)
RMS Noise
@ 100 Hz
to 100 kHz
(𝛍V rms)1
60
31
5.0
12
42
1.25
3 mm × 3 mm,
8-lead LFCSP
No
60
31
5.0
12
84
1.5
3 mm × 3 mm,
8-lead LFCSP
No
60
31
5.0
12
172
1.5
3 mm × 3 mm,
8-lead LFCSP
VIN Range
(V)
VOUT Options or Adj
Range (V)
PSRR @
IOUT Soft Power
100 kHz
(mA) Start Good
(dB)
ADM7170 2.3 to 6.5
Fixed: 1.2 to 5.0
Adjustable: 1.2 to 6.4
500
Yes
No
ADM7171 2.3 to 6.5
Fixed: 1.2 to 5.0
1000
Adjustable: 1.2 to 6.4
Yes
ADM7172 2.3 to 6.5
Fixed: 1.2 to 5.0
2000
Adjustable: 1.2 to 6.3
Yes
Part
Number
Noise Spectral Dropout @
Total
Density 100 kHz Rated IOUT Accuracy
(nV/√Hz)
Typ (mV) Max (∙%)
Package
Noise independent of fixed output voltage.
analog.com/LDO | 7
Low Quiescent Current LDOs
ADP160, ADP161, ADP162, ADP163, ADP165, and ADP166
ADP1651 VOUT AND GND CURRENT vs. VIN
VIN NOM = 3.3V
ILOAD = 1𝛍A
ADP5300
SWITCHING
BATTERY
DISCONNECT
VOUT (V)
OR
WDI
ADM8615
VOLTAGE
SUPERVISOR RESET
ADP165
LINEAR
IGND (𝛍A)
ADCMP380
INTERRUPT
MICRO
COMPARATOR
DROPOUT
REGION
2.5
ADC
SENSOR
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
3.0
2.0
1.5
1.0
0.5
0
0
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2 5.6
VIN
Battery-powered sensor.
Low Quiescent Current LDO Selection Table
Supply
Supply
Quick
Pass
Current No Current Full
Output
Through
Load Typical Load Typical
Discharge Mode
(𝛍A)
(𝛍A)
RMS Noise
@ 10 Hz
to 100 kHz
(𝛍V rms)
PSRR @
1 MHz
(dB)
Package
No
80
25
5-lead TSOT,
1 mm × 1 mm, 4-ball WLCSP
Yes
No
80
25
5-lead TSOT
42
No
No
80
25
5-lead TSOT,
1 mm × 1 mm, 4-ball WLCSP
0.56
42
No
No
80
25
5-lead TSOT
150
0.59
42
Yes
Yes
80
25
5-lead TSOT,
2 mm × 2 mm, 6-lead LFCSP,
1 mm × 1 mm, 4-ball WLCSP,
150
0.59
42
No
Yes
80
25
5-lead TSOT,
2 mm × 2 mm, 6-lead LFCSP,
1 mm × 1 mm, 4-ball WLCSP,
Part Number
VIN Range
(V)
VOUT Options or
Adj Range (V)
IOUT
(mA)
ADP160
2.2 to 5.5
Fixed: 1.2 to 4.2
150
0.56
42
Yes
ADP161
2.2 to 5.5
Adjustable:
1.2 to 4.2
150
0.56
42
ADP162
2.2 to 5.5
Fixed:1.2 to 4.2
150
0.56
ADP163
2.2 to 5.5
150
ADP1651 New
2.2 to 5.5
ADP1661 New
2.2 to 5.5
Adjustable:
1.2 to 4.2
Fixed: 1.2 to 4.2
Adjustable:
1.0 to 4.2
Fixed: 1.2 to 4.2
Adjustable:
1.0 to 4.2
ADP165 and ADP166 include pass through mode (very low quiescent current in dropout).
1
| Low Dropout Regulators
8
analog.com/LDO | 9
1
1.8 to 5.1
2.3 to 5.5
2.3 to 5.5
3.3 to 5.5
ADM7154 New
ADM7155 New
HMC976LP3E
HMC860LP3E
1.2 to 6.4
1.2 to 6.3
1.22 to 19
2.2 to 5.5
2.2 to 5.5
2.3 to 6.5
2.3 to 6.5
3.3 to 20
3.3 to 20
2.7 to 20
2.7 to 20
2.7 to 40
ADM7160 New
ADM7170 New
ADM7171 New
ADM7172 New
2.3 to 6.5
High Voltage and Low Noise
3.3 to 20
ADP151
ADP7102
ADP7104
ADP7105 New
ADP7112 New
ADP7118 New
ADP7142 New
1.6 to 3.6
1.6 to 3.6
1.6 to 3.6
1.2 to 3.6
Ultralow VIN
ADP170
ADP171
ADP172
ADP130
0.8 to 3.0
0.8 to 3.0
0.8 to 3.0
0.8 to 3.0
–1.22 to –27
1.2 to 39
1.2 to 19
1.2 to 19
1.22 to 19
1.22 to 19
1.2 to 6.4
1.1 to 3.3
PSRR specifications are at this headroom voltage (headroom = VIN – VOUT ).
–2.7 to –28
ADP7182 New
Negative Voltage
1.8 to 3.3
2.2 to 5.5
ADP150
1.1 to 3.3
2.5 to 5.2
1.8 to 5.2
3.35 to 5.6
HMC1060LP3E
3.35 to 5.6
Low Voltage and Low Noise
1.2 to 3.3
1.2 to 3.3
1.5 to 5.0
1.5 to 5.1
4.5 to 16
350
300
300
300
–200
200
200
200
500
500
300
2000
1000
500
200
200
150
500
240
400
600
600
800
800
VOUT Range (V) IOUT (mA)
ADM7151 New
VIN Range
(V Min to V Max)
Ultralow Noise, High PSRR
ADM7150 New
4.5 to 16
Part Number
LDO Selection Table
25
23
23
23
–33
50
50
50
400
400
400
700
700
700
10
10
10
2100
1900
1100
4000
4000
4300
4300
Supply Current
No Load (𝛍A)
3
3
3
3
3
1.8
1.8
1.8
2
3
3
1.5
1.5
1.25
3
3
2.5
2
2
2
2
2
2
2
Worst-Case
Accuracy (∙%)
29
30
30
30
18
11
11
11
15
15
15
6
6
6
9
9
55
50
50
50
45
68
68
68
60
60
60
53
53
53
45
45
50
65
72
9
9
45
5.5
90
90
90
90
PSRR @
100 kHz
(dB)
1.6
9
1.6
1.6
1.6
RMS Noise @
10 Hz to 100 kHz
(𝛍V rms)
35
32
32
32
32
50
50
50
40
40
40
30
30
30
38
25
30
35
60
35
58
58
55
55
PSRR @
1 MHz
(dB)
500
500
500
500
1000
2000
2000
2000
1000
1000
1000
500
500
500
500
500
500
500
500
500
500
500
1200
1200
PSRR @
Headroom
(mV)1
3 mm × 3 mm, 8-lead LFCSP
5-lead TSOT
4-lead WLCSP
5-lead TSOT
5-lead TSOT
0.95 mm × 0.95 mm
WLCSP option
VBIAS voltage required
Fixed output
Adjustable output
Positive/negative EN logic
Soft start
2 mm × 2 mm, 6-lead LFCSP,
8-lead SOIC, 5-lead TSOT
2 mm × 2 mm, 6-lead LFCSP,
3 mm × 3 mm, 8-lead LFCSP,
5-lead TSOT
Soft start
Power good, soft start,
reverse voltage protected
3 mm × 3 mm,
8-lead LFCSP, 8-lead SOIC
Soft start
Power good, reverse
voltage protected
3 mm × 3 mm,
8-lead LFCSP, 8-lead SOIC
2 mm × 2 mm, 6-lead LFCSP,
8-lead SOIC, 5-lead TSOT
Power good, reverse
voltage protected
3 mm × 3 mm,
8-lead LFCSP, 8-lead SOIC
1 mm × 1.2 mm, 6-ball WLCSP
Fast transient response
Fast transient response
3 mm × 3 mm, 8-lead LFCSP
3 mm × 3 mm, 8-lead LFCSP
0.8 mm × 0.8 mm
WLCSP option
I&I applications,
low tempco
Fast transient response
0.8 mm × 0.8 mm
WLCSP option
4-lead WLCSP, 5-lead TSOT
4-lead WLCSP, 5-lead TSOT,
2 mm × 2 mm, 6-lead LFCSP
5-lead TSOT,
2 mm × 2 mm, 6-lead LFCSP
Quad output
3 mm × 3 mm, 16-lead LFCSP
Quad output
3 nV/√Hz @ 100 kHz
3 mm × 3 mm, 16-lead LFCSP
3 mm × 3 mm, 16-lead LFCSP
1.2 nV/√Hz @ 100 kHz
1.2 nV/√Hz @ 100 kHz
1.5 nV/√Hz @ 100 kHz
1.5 nV/√Hz @ 100 kHz
Comments
3 mm × 3 mm, 8-lead LFCSP
3 mm × 3 mm, 8-lead LFCSP
3 mm × 3 mm, 8-lead LFCSP
3 mm × 3 mm, 8-lead LFCSP
Package
10 | Low Dropout Regulators
1
VIN Range
(V Min to V Max)
2.5 to 5.5
2.5 to 5.5
2.5 to 5.5
2.5 to 5.5
2.5 to 5.5
1.8 to 5.5
1.8 to 5.5
1.8 to 5.5
2.3 to 6.5
1.6 to 3.6
1.6 to 3.6
2.3 to 5.5
2.3 to 5.5
2.3 to 5.5
2.3 to 5.5
ADP221
ADP222
ADP223
ADP224
ADP225
ADP320
ADP322
ADP323
High Current
ADM7172 New
ADP1740
ADP1741
General-Purpose
ADP121
ADP122
ADP123
ADP124
1.75 to 3.3
0.8 to 5.0
1.75 to 3.3
1.2 to 3.3
0.75 to 3.3
0.75 to 2.5
1.2 to 6.3
0.5 to 5.0
0.8 to 3.3
0.8 to 3.3
0.5 to 5.0
0.8 to 3.3
0.5 to 5.0
0.8 to 3.3
0.8 to 3.3
0.8 to 3.3
1.8 to 5.2
2.5 to 5.2
0.75 to 3.3
0.75 to 2.5
0.75 to 3.3
0.75 to 2.5
0.75 to 3.3
0.75 to 2.5
500
300
300
150
2000
2000
2000
200
200
200
300
300
300
300
200
200
500
240
1200
1200
800
800
2000
2000
VOUT Range (V) IOUT (mA)
PSRR specifications are at this headroom voltage (headroom = VIN – VOUT ).
2.5 to 5.5
1.6 to 3.6
ADP1755
ADP220
1.6 to 3.6
ADP1754
3.35 to 5.6
1.6 to 3.6
ADP1753
3.35 to 5.6
1.6 to 3.6
ADP1752
HMC1060LP3E
1.6 to 3.6
ADP1741
Multirail
HMC860LP3E
1.6 to 3.6
ADP1740
Ultralow VIN (continued)
Part Number
45
45
45
11
90
90
700
85
85
85
65
65
65
65
60
60
2100
1900
90
90
90
90
90
90
Supply Current
No Load (𝛍A)
2
2
2
3
2
2
1.5
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Worst-Case
Accuracy (∙%)
50
60
60
45
40
25
25
25
54
55
24
23
55
24
54
55
24
23
60
27
53
60
27
6
60
60
27
60
27
27
60
54
23
27
54
23
65
54
23
72
54
23
9
54
23
5.5
54
PSRR @
100 kHz
(dB)
23
RMS Noise @
10 Hz to 100 kHz
(𝛍V rms)
33
38
38
30
40
40
30
45
45
45
40
40
40
40
40
40
35
60
40
40
40
40
40
40
PSRR @
1 MHz
(dB)
500
500
500
1000
1000
1000
500
1000
1000
1000
1000
1000
1000
1000
1000
1000
500
500
1000
1000
1000
1000
1000
1000
PSRR @
Headroom
(mV)1
5-lead TSOT, 4-lead WLCSP
5-lead TSOT,
2 mm × 2 mm, 6-lead LFCSP
5-lead TSOT,
2 mm × 2 mm, 6-lead LFCSP
8-lead MSOP,
2 mm × 2 mm, 8-lead LFCSP
4 mm × 4 mm, 16-lead LFCSP
4 mm × 4 mm, 16-lead LFCSP
3 mm × 3 mm, 8-lead LFCSP
3 mm × 3 mm, 16-lead LFCSP
3 mm × 3 mm, 16-lead LFCSP
3 mm × 3 mm, 16-lead LFCSP
2 mm × 2 mm, 8-lead LFCSP
2 mm × 2 mm, 8-lead LFCSP
2 mm × 2 mm, 8-lead LFCSP
2 mm × 2 mm, 8-lead LFCSP
6-lead WLCSP
3 mm × 3 mm, 16-lead LFCSP
6-lead WLCSP
3 mm × 3 mm, 16-lead LFCSP
4 mm × 4 mm, 16-lead LFCSP
4 mm × 4 mm, 16-lead LFCSP
4 mm × 4 mm, 16-lead LFCSP
4 mm × 4 mm, 16-lead LFCSP
4 mm × 4 mm, 16-lead LFCSP
4 mm × 4 mm, 16-lead LFCSP
Package
Exposed pad package for high
thermal conductivity
Adjustable output
Fixed output
0.82 mm × 0.82 mm WLCSP
Fast transient response
Soft start, power good, reverse
voltage protected
Soft start, power good, reverse
voltage protected
Dual LDO, adjustable outputs
Dual LDO, fixed outputs, quick
output discharge
Dual LDO, adjustable outputs,
quick output discharge
Triple LDO, 2.5 VBIAS min
Triple LDO, 2.5 VBIAS min, fixed
outputs
Triple LDO, 2.5 VBIAS min,
adjustable outputs
1 mm × 1.5 mm WLCSP,
active pulldown
Dual LDO, fixed outputs
1 mm × 1.5 mm WLCSP
Quad output
Quad output
Soft start, power good, reverse
voltage protected
Soft start, power good, reverse
voltage protected
Soft start, power good, reverse
voltage protected
Soft start, power good, reverse
voltage protected
Soft start, power good, reverse
voltage protected
Soft start, power good, reverse
voltage protected
Comments
analog.com/LDO | 11
1
VIN Range
(V Min to V Max)
1.2 to 4.2
1.0 to 4.2
1.2 to 4.2
Ultralow Iq and Low Noise
ADP160
2.2 to 5.5
ADP161
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
2.3 to 5.5
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
1.6 to 3.6
2.5 to 5.5
2.5 to 5.5
2.7 to 20
ADP162
ADP163
ADP165 New
ADP166 New
WLCSP
ADP121
ADP150
ADP151
ADP160
ADP162
ADP165 New
ADP166 New
ADP172
ADP220
ADP221
ADP7112 New
PSRR specifications are at this headroom voltage (headroom = VIN – VOUT ).
1.2 to 19
0.8 to 3.3
0.8 to 3.3
0.8 to 3.0
1.0 to 4.2
1.0 to 4.2
1.2 to 4.2
1.2 to 4.2
1.1 to 3.3
1.8 to 3.3
1.2 to 3.3
1.0 to 4.2
1.0 to 4.2
1.0 to 4.2
0.8 to 5.0
200
200
200
300
150
150
150
150
200
150
150
150
150
150
150
150
150
500
VOUT Range (V) IOUT (mA)
2.3 to 5.5
ADP125
General-Purpose (continued)
Part Number
50
60
60
23
0.59
2
2
2
3
3.5
3.5
3.5
0.56
0.59
3.5
3
2.5
3
3.5
3.5
3.5
3.5
3.5
3.5
2
Worst-Case
Accuracy (∙%)
0.56
10
10
11
0.59
0.59
0.56
0.56
0.56
0.56
45
Supply Current
No Load (𝛍A)
60
60
27
27
60
50
30
11
23
23
23
23
45
50
50
23
23
23
23
23
23
45
PSRR @
100 kHz
(dB)
80
80
80
80
9
9
40
80
80
80
80
80
80
25
RMS Noise @
10 Hz to 100 kHz
(𝛍V rms)
40
40
40
32
20
20
20
20
25
30
30
20
20
20
20
20
20
33
PSRR @
1 MHz
(dB)
1000
1000
1000
500
500
500
500
500
500
500
1000
500
500
500
500
500
500
500
PSRR @
Headroom
(mV)1
6-lead WLCSP
6-lead WLCSP
6-lead WLCSP
1 mm × 1.5 mm WLCSP,
active pulldown
Soft start
1 mm × 1.5 mm WLCSP
0.95 mm × 0.95 mm
WLCSP option
Ultralow Iq in dropout
(pass through mode)
1 mm × 1 mm, 4-lead WLCSP,
2 mm × 2 mm, 6-lead LFCSP,
5-lead TSOT
4-lead WLCSP
Ultralow Iq in dropout
(pass through mode), QOD
0.8 mm × 0.8 mm
WLCSP option
Ultralow Iq, QOD
Ultralow Iq, QOD,
0.965 mm × 0.965 mm WLCSP
0.8 mm × 0.8 mm
WLCSP option
1 mm × 1 mm, 4-lead WLCSP,
2 mm × 2 mm, 6-lead LFCSP,
5-lead TSOT
5-lead TSOT, 4-lead WLCSP
5-lead TSOT, 4-lead WLCSP
4-lead WLCSP, 5-lead TSOT,
2 mm × 2 mm, 6-lead LFCSP
4-lead WLCSP, 5-lead TSOT
0.82 mm × 0.82 mm WLCSP
Ultralow Iq in dropout
(pass through mode)
1 mm × 1 mm, 4-lead WLCSP,
2 mm × 2 mm, 6-lead LFCSP,
5-lead TSOT
5-lead TSOT, 4-lead WLCSP
Ultralow Iq in dropout
(pass through mode), QOD
Ultralow Iq, QOD
Ultralow Iq
Ultralow Iq, QOD,
0.965 mm × 0.965 mm WLCSP
Ultralow Iq
Exposed pad package for high
thermal conductivity
Comments
1 mm × 1 mm, 4-lead WLCSP,
2 mm × 2 mm, 6-lead LFCSP,
5-lead TSOT
5-lead TSOT
5-lead TSOT, 4-lead WLCSP
5-lead TSOT, 4-lead WLCSP
5-lead TSOT
8-lead MSOP,
2 mm × 2 mm, 8-lead LFCSP
Package
Online Tools and Resources
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