MagI3C Power Modules
Magnetic Integrated Intelligent IC
Synchronous step down voltage
regulator modules with integrated
inductor solution
Fast and easy design-in
VDRM Modules: Very flexible, wide input
and output voltage range
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DC/DC Solutions & General Information
DC/DC Solutions
CONTROLLER
CONVERTER
V IN
V IN
ISwitch
1
ISwitch
ILoad
Controller IC
1
ILoad
V OUT
Controller IC
C OUT
C IN
ISwitch
V OUT
C OUT
C IN
2
ISwitch
2
Discrete Solutions


Maximum flexibility
Many different parts
POWER MODULE
VDRM
VIN
ISwitch 1
ILoad
Controller IC
VOUT
COUT
CIN
ISwitch 2
Integrated Solutions


Maximum ease of use
Standard parts
Advantages of the Power Modules:
Integrated inductor solution for ease of use
 Fast time to market (save up to 75 % development time)
 Space saving
 Standard parts for wide input and output voltage range

2
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


Low EMI
High efficiency up to 97 %
Best-in-class thermal performance
(no external heat sink or air flow required)
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The VDRM series of the MagI3C Power Modules family comprise a fully integrated current mode DC/DC power supply with both the switching power stage, control circuitry and passive all-in-one package. These devices also feature built-in compensation circuitry and a soft-start feature for a
smooth, safe power up. The 7 PIN TO263-7EP is an industrial high power density package with a low profile and a small outline. The VDRM series
offers high efficiency and delivers up to 5 A of output current with accurate regulated output voltages. It operates from input voltage 6 V to 42 V. They
are available in an innovative package that enhances thermal performance and allows for hand or machine soldering. The VDRM regulators also
have on-board protection circuitry to guard against thermal and electrical damage. Thermal shut-down, overcurrent, overvoltage and undervoltage
protections safeguard the regulator and include a short-circuit protection.
Evaluation Boards
Order Code Evaluation Board
Part Description
VIN (V)
VOUT (V)
IOUT (A)
178 020 601
WPMDH1200601JEV
6 - 42
0.8 - 6
2.0
178 012 401
WPMDH1102401JEV
6 - 42
5 - 24
1.0
178 012 402
WPMDH1152401JEV
6 - 42
5 - 24
1.5
178 032 401
WPMDH1302401JEV
6 - 42
5 - 24
3.0
178 050 601
WPMDM1500602JEV
6 - 36
0.8 - 6
5.0
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MagI³C – VDRM (1-3 A)
Variable Step Down Regulator Module
Package TO263-7EP
Characteristics
Applications
Output current up to 3 A
Input voltage range from 6 V to 42 V
Operating junction temperature: -40 °C to +125 °C
Peak efficiency up to 97 %
Low noise complies with EN55022 class B EMI
standards
Output under- & overvoltage protection
Overcurrent protection
Overtemperature protection
Adjustable soft start
Tape & reel packaging
Point of Load DC/DC applications
Servers, data and telecom
System power supplies
DSPs, FPGAs, MCUs and MPUs
I/O interface
Industrial electronics
Embedded PCs
QR-Code
Fire alarm control units
Measurement equipment
Electrical properties
Order Code
Part Description
VIN (V)
VOUT (V)
IOUT (A)
171 020 601
171 012 401
171 012 402
171 032 401
WPMDH1200601JT
WPMDH1102401JT
WPMDH1152401JT
WPMDH1302401JT
6-42
6-42
6-42
6-42
0.8-6
5-24
5-24
5-24
2.0
1.0
1.5
3.0
Switching Frequency
(MHz)
0.2 – 0.8
0.2 – 0.8
0.2 – 0.8
0.2 – 0.8
Dimensions (in mm)
Integrated Inductor
(µH)
10
15
15
10
Qty.
250
250
250
250
Order Code
Evaluation Board
178 020 601
178 012 401
178 012 402
178 032 401
Land pattern (in mm)
Pin description
AGND
SS
5
FB
6
VOUT
7
~l XY
WPMXX
1234567XX
EN
4
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VIN
RON
3
4
EP
Pin Description
Input power supply
Set the frequency of the application
Remote ON/OFF
Reference ground of the device
Set up the soft-start function
Set up the output voltage
Regulated output voltage
Exposed pad - must be electrically
connected to pin 4 external to package
2
EP
Pin Symbol
VIN
RON
EN
AGND
SS
FB
VOUT
1
Pin #
1
2
3
4
5
6
7
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MagI3C-VDRM (1 - 3 A)
Design Guideline
7
7 Steps to design your Power Application
1. Program under voltage lockout divider
2. Program output voltage
3. Select soft-start capacitor
4. Select output capacitor
5. Select input capacitor
6. Set operating frequency
7. Select feed forward capacitor
VIN
VOUT
VOUT
VIN
7.
Module
6.
CFF
FB
RON
RON
RFBT
1.
EN
RENT
CIN
AGND
RENB
5.
Design Recommendation:
The Variable Power Module Series offers you a simplified and easy way
to use.
The input capacitor CIN supplies the momentary current demands of the
IC and has to be sized to satisfy the input ripple current requirement.
Ceramic capacitors are proposed in order to minimize the input voltage
ripple. Optional high-frequency ceramic capacitors can be selected and
implemented on the input, with the intention of reducing noise.
2.
SS
3.
CSS
4.
RFBB
COUT
The RENT and RENB circuit ensure robustness and prevents the IC from
turning on early as the main supply voltage ramps up. This allows the
designer to choose an input voltage below which the circuit will be disabled. This implements the feature of programmable under voltage lockout, UVLO.
Further details can be found in the datasheet on
www.we-online.com
For the output capacitor COUT low ESR ceramic capacitors are recommended in the data sheet. This reduces output ripple, but you need to
make sure that your account for the DC bias derating when sizing the
capacitor. X5R or X7R dielectrics are recommended because they are
stable over a wide temperature range.
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Typical Performance
Characteristics
Power Module 171 020 601
Efficiency:
VIN = 24 V; TAMB = 25 °C
Power Loss:
VIN = 24 V; TAMB = 25 °C
100
1.8
95
85
1.2
80
Power Loss (W)
Efficiency (%)
V OUT
V OUT
V OUT
V OUT
1.5
90
75
70
= 5.0V
= 3.3V
= 2.5V
= 1.8V
V OUT
V OUT
V OUT
V OUT
65
60
= 5.0V
= 3.3V
= 2.5V
= 1.8V
0.9
0.6
0.3
55
0.0
50
0.0
0.4
0.8
1.2
1.6
0.0
2.0
0.4
Output Current (A)
0.8
1.2
1.6
2.0
Output Current (A)
Output Ripple:
VIN = 24 V; IOUT = 2 A; Ceramic COUT; BW = 200 MHz
Thermal Derating:
VOUT = 3.3 V; θJA = 19.6 °C/W
2.5
V OUT =3.3V
Output Current (A)
2.0
1.5
1.0
0.5
20 mV/div
1 µs/div
V IN = 12V
0.0
50
60
70
80
90
100
110
120
Ambient Temperature (°C)
6
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Typical Performance
Characteristics
Power Module 171 012 401
Efficiency:
VOUT = 5 V @ TAMP = 25 °C
Power Loss:
VOUT = 5 V; TAMB = 25 °C
1.5
100
95
V IN
V IN
V IN
V IN
V IN
1.2
Power Loss (W)
Efficiency (%)
90
85
80
V IN
V IN
V IN
V IN
V IN
75
= 8V
= 12V
= 24V
= 36V
= 42V
= 8V
= 12V
= 24V
= 36V
= 42V
0.9
0.6
0.3
70
0.0
0.0
0.2
0.4
0.6
0.8
1.0
0.0
0.2
0.4
Output Current (A)
0.6
0.8
1.0
Output Current (A)
Output Ripple:
VIN = 24 V; IOUT = 1 A; Polymer Electrolytic COUT; BW = 200 MHz
Thermal Derating:
VOUT = 12 V; θJA = 16 °C/W
1.2
VOUT=12V
1.0
Output Current (A)
0.8
0.6
0.4
V IN = 15V
V IN = 24V
V IN = 42V
0.2
0.0
20 mV/div
1 µs/div
-20
0
20
40
60
80
100 120 140
Ambient Temperature (°C)
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Typical Performance
Characteristics
Power Module 171 012 402
100
3.0
95
2.5
90
2.0
Power Loss (W)
Power Loss:
VOUT = 5 V; TAMB = 25 °C
Efficiency (%)
Efficiency:
VOUT = 5 V; TAMB = 25 °C
85
80
V IN = 8V
V IN = 12V
V IN = 24V
75
V IN = 8V
V IN = 12V
V IN = 24V
1.5
1.0
0.5
0.0
70
0.0
0.5
1.0
0.0
1.5
0.5
Output Current (A)
1.0
1.5
Output Current (A)
Output Ripple:
VIN = 24 V; IOUT = 1.5 A; Polymer Electrolytic COUT; BW = 200 MHz
Thermal Derating:
VIN = 24 V; VOUT = 12 V; θJA = 19.6 °C/W
2.0
V OUT =12V
Output Current (A)
1.5
1.0
0.5
0.0
100 mV/div
1 µs/div
-20
0
20
40
60
80
100 120 140
Ambient Temperature (°C)
8
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Typical Performance
Characteristics
Power Module 171 032 401
Efficiency:
VOUT = 5 V; TAMB = 25 °C
Power Loss:
VOUT = 5 V; TAMB = 25 °C
5.0
100
95
V IN = 8V
V IN = 12V
V IN = 24V
4.0
Power Loss (W)
Efficiency (%)
90
85
80
V IN = 8V
V IN = 12V
V IN = 24V
75
0.5
1.0
1.5
2.0
2.0
1.0
70
0.0
3.0
2.5
0.0
3.0
0.0
0.5
Output Current (A)
1.0
1.5
2.0
2.5
3.0
Output Current (A)
Output Ripple:
VIN = 24 V; IOUT = 3 A; Polymer Electrolytic COUT; BW = 200 MHz
Thermal Derating:
VIN = 24 V; VOUT = 12 V; θJA = 16 °C/W
3.5
V OUT =12V
3.0
Output Current (A)
2.5
2.0
1.5
1.0
0.5
0.0
100 mV/div
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1 µs/div
-20
0
20
40
60
80 100 120 140
Ambient Temperature (°C)
Ambient Temperature (°C)
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9
Evaluation Boards –
Design & EMC Recommendations
Power Module Basic Circuit of
the Following Types
EN 55022
Order Code
171 020 601
171 012 401
171 012 402
171 032 401
ITE (Information Technology Equipment),
also known as CISPR-22
Limit A for Industrial
VIN (V)
6-42
6-42
6-42
6-42
VIN
VOUT (V)
0.8-6
5-24
5-24
5-24
IOUT (A)
2.0
1.0
1.5
3.0
VOUT
VOUT
VIN
Module
Limit B for Home Appliances
EN
RENT
CIN
FB
RON
RON
CFF
AGND
RFBT
SS
CSS
RENB
RFBB
COUT
EMC Measured Values
178 012 401 | Conditions: VIN = 24 V; VOUT = 12 V; IOUT = 1 A
178 012 402 | Conditions: VIN = 24 V; VOUT = 12 V; IOUT = 1,5 A
178 032 401 | Conditions: VIN = 24 V; VOUT = 12 V; IOUT = 3 A
178 020 601
Conditions:
VIN = 24 V; VOUT = 3.3 V; IOUT = 2 A
80
80
EMI
EN 55022 Class A
EN 55022 Class B
70
Radiated Emissions (dBµV/m)
Radiated Emissions (dBµV/m)
60
50
40
30
20
50
40
30
20
10
0
0
200
400
600
Frequency (MHz)
10
60
10
0
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800
EMI
EN 55022 Class A
EN 55022 Class B
70
1000
0
200
400
600
800
1000
Frequency (MHz)
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MagI³C – VDRM (5 A) – Synchronisable
Variable Step Down Regulator Module
Package TO-263-7EP
Characteristics
Applications
Output current up to 5 A
Input voltage range from 6 V to 36 V
Operating junction temperature: -40 °C to +125 °C
Peak efficiency up to 92 %
Low noise complies with EN55022 class B EMI
standards
Output under- & overvoltage protection
Overcurrent protection
Overtemperature protection
Adjustable soft start
Tape & reel packaging
Point of Load DC/DC applications
Servers, data and telecom
System power supplies
DSPs, FPGAs, MCUs and MPUs
I/O interface
Industrial electronics
Embedded PCs
QR-Code
Fire alarm control units
Measurement equipment
Electrical properties
Order Code
Part Description
VIN (V)
VOUT (V)
IOUT (A)
171 050 601
WPMDM1500602JT
6-36
0.8-6
5.0
Switching Frequency
(MHz)
0.812
Dimensions (in mm)
Qty.
250
Order Code
Evaluation Board
178 050 601
6
VOUT
~l
FB
SS/TRK
7
XY
WPMXX
1234567XX
AGND
5
EP
EN
4
VOUT
EP
SYNC
3
7
VIN
2
SS/TRK
Pin Description
Input power supply
Set the frequency of the application
Remote ON/OFF
Reference ground of the device
Set up the output voltage
Set up the soft-start function
or tracking function
Regulated output voltage
Exposed pad - must be electrically
connected to pin 4 external to package
1
Pin Symbol
VIN
SYNC
EN
AGND
FB
6
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Integrated Inductor
(µH)
3.3
Land pattern (in mm)
Pin description
Pin #
1
2
3
4
5
Synchronization Range
(MHz)
0.65 – 0.95
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11
MagI³C – VDRM (5 A) – Synchronisable
Design Guideline
7
7 Steps to design your Power Application
1. Program under voltage lockout divider
2. Program output voltage
3. Select soft-start capacitor
4. Tracking supply option
5. Select output capacitor
6. Select input capacitor
7. Synchronisation
VIN
VIN
Module
SYNC
SS/TRK
7.
4.
3.
CSS
1.
EN
RENT
CIN
VOUT
VOUT
AGND
RENB
FB
2.
RFBT
RFBB
5.
COUT
6.
Design Recommendation:
The Variable Power Module Series offers you a simplified and easy way
to use.
The input capacitor CIN supplies the momentary current demands of the
IC and has to be sized to satisfy the input ripple current requirement.
Ceramic capacitors are proposed in order to minimize the input voltage
ripple. Optional high-frequency ceramic capacitors can be selected and
implemented on the input, with the intention of reducing noise.
The RENT and RENB circuit ensure robustness and prevents the IC from
turning on early as the main supply voltage ramps up. This allows the
designer to choose an input voltage below which the circuit will be disabled. This implements the feature of programmable under voltage lockout, UVLO.
Further details can be found in the datasheet on
www.we-online.com
For the output capacitor COUT low ESR ceramic capacitors are recommended in the data sheet. This reduces output ripple, but you need to
make sure that your account for the DC bias derating when sizing the
capacitor. X5R or X7R dielectrics are recommended because they are
stable over a wide temperature range.
12
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Typical Performance
Characteristics
Power Module 171 050 601
Efficiency:
VOUT = 3.3 V; TAMB = 25 °C
Power Loss:
VOUT = 3.3 V; TAMB = 25 °C
100
7
90
6
5
Power Loss (W)
80
Efficiency (%)
V IN
V IN
V IN
V IN
70
60
V IN
V IN
V IN
V IN
50
= 9V
= 12V
= 24V
= 36V
= 9V
= 12V
= 24V
= 36V
4
3
2
1
40
0
0
1
2
3
4
5
0
1
2
3
4
5
Output Current (A)
Output Current (A)
Output Ripple:
VIN = 12 V; IOUT = 5 A; Ceramic COUT; BW = 20 MHz
Thermal Derating:
VOUT = 3.3 V; θJA = 12 °C/W
6
V OUT =3.3V
5
Output Current (A)
4
3
2
1
10 mV/Div
500 ns/Div
V IN = 24V
0
30 40 50 60 70 80 90 100 110 120 130
Ambient Temperature (°C)
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Evaluation Boards –
Design & EMC Recommendations
Power Module Basic Circuit of
the Following Types
Order Code
171 050 601
VIN (V)
6-36
Power Module Optimized Circuit of
the Following Types
VOUT (V)
0.8-6
IOUT (A)
5.0
Order Code
Evaluation Board
178 050 601
VIN
VIN
Module
EN
CIN
COUT 1 opt.
(µH)
Chip Bead Ferrite;
Size 1812;
Würth Elektronik
Order Code
742 792 261 01
AEC; 100 µF;
50 V; 20 %;
Radial, SMD
6.3 x 6.3 mm
Chip Bead Ferrite;
Size 1812;
Würth Elektronik
Order Code
742 792 261 01
AEC; 100 µF;
50 V; 20 %;
Radial, SMD
6.3 x 6.3 mm
LOUT opt
Power
Module
Basic
Circuit
SS/TRK
CIN1 opt
AGND
FB
RENB
RFBT
RFBB
EMC Measured Values
EMC Measured Values
178 050 601
Conditions:
VIN = 24 V; VOUT = 3.3 V; IOUT = 5 A
178 050 601
Conditions:
VIN = 24 V; VOUT = 3.3 V; IOUT = 5 A
RLoad
80
EMI
EN 55022 Class A
EN 55022 Class B
70
EMI
EN 55022 Class A
EN 55022 Class B
70
60
60
Radiated Emissions (dBµV/m)
Radiated Emissions (dBµV/m)
COUT1 opt
COUT
80
50
40
30
20
50
40
30
20
10
10
0
0
0
200
400
600
Frequency (MHz)
14
LOUT opt.
(µH)
LIN opt
VIN
CSS
RENT
CIN 1 opt.
(µH)
VOUT
VOUT
SYNC
LIN opt.
(µH)
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800
1000
0
200
400
600
800
1000
Frequency (MHz)
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Electronic Components
EMC Components
Power Magnetics
Power Modules
Signal & Communications
LEDs
Connectors
Switches
Power Elements
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DIENECKARPRINZEN 999941.10k.0214.FLY
Assembly Technique
15