General Description

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Preliminary
Datasheet
LPW5210
1.5A Power Switch with Programmable Current Limit
General Description
Features
The LPW5210 is an integrated power switch for
 110mΩ Low Rdson,High-side NMOSFET
self-powered and bus-powered Universal Series
 Guaranteed 1500mA Continuous Current
Bus (USB) applications. A built-in charge pump is
used to drive the N-Channel MOSFET that is free of
parasitic body diode to eliminate any reversed
current flow across the switch when it is powered off.
Its low quiescent current (16μA) and small package
(SOT23-5) is particularly suitable in battery-powered
 2.5V to 6V Input Voltage
 Low Quiescent Current:16uA
 Soft Start Function
 Built-In Short-Circuit Protection
 Built-in Thermal Protection
 RoHS Compliant and 100% Lead (Pb)-Free
portable equipment.
Several protection functions include soft start to limit
inrush current during plug-in, current limiting at
1500mA to meet USB power requirement, and
thermal shutdown to protect damage under over
current conditions.
Typical Application Circuit
VIN
Order Information
LPW5210
LPW5210
5
□ □ □
F: Pb-Free
Cin
4
VOUT
Vin
Vout
EN
GND Rset
1
Cout
3
2
Package Type
6.8K
B5: SOT23-5
Marking Information
Device
Marking
Package
Shipping
LPW5210
LPS
SOT23-5
3K/REEL
7WYWX
Applications



Power Switch
USB Device
Battery Charger Circuits
LPW5210 –02
Version 1.2
Nov.-2013
Marking indication:
Y:Production year W:Production week
Email: [email protected]
X:Production batch
www.lowpowersemi.com
Page 1 of 5
Preliminary
Datasheet
LPW5210
Functional Pin Description
Package Type
Pin Configurations
SOT23-5
PIN No.
NAME
DESCRIPTION
1
VOUT
Output pin.
2
GND
Ground.
3
SET
Connect a resistor to GND for setting current limit. ILIMIT(mA)=6800/Rset (kΩ).
4
EN
Chip enable (Active High).
5
VIN
Input pin.
LPW5210 –02
Version 1.2
Nov.-2013
Email: [email protected]
www.lowpowersemi.com
Page 2 of 5
Preliminary
Datasheet
LPW5210
Absolute Maximum Ratings
 Input Voltage to GND (VIN) ------------------------------------------------------------------------------------------------- 7V
 EN Voltage
-------------------------------------------------------------------------------------------------------- 0.3V to 7V
 Operating Junction Temperature Range (TJ) ------------------------------------------------------- -40℃ to 150℃
 Maximum Soldering Temperature (at leads, 10sec) ----------------------------------------------------------- 260℃
 HBM(Human Body Mode)-------------------------- ----------------------------------------------------------------------- 2KV
Thermal Information
 Maximum Power Dissipation (PD) ---------------------------------------------------------------------------------- 0.45W
 Thermal Resistance (JA) ------------------------------------------------------------------------------------------- 260℃/W
Electrical Characteristics
(Over recommended operating conditions unless specified otherwise) VIN=5.0V,EN=High, TA=25℃ )
Parameter
Symbol
VIN
Input Voltage
Iout
Output Current Limited
RDS(ON)
Conditions
Output NMOSFET RDS(ON)
Vin=3V
ISHDN
Shutdown Current
EN = GND
VEN(L)
Enable Threshold Low
VEN(H)
Enable Threshold High
Input High Current
Version 1.2
Nov.-2013
Typ.
Max.
V
1500
mA
mΩ
16
28
uA
1
µA
0.4
V
1.2
VIN= VEN = 5.0V
Email: [email protected]
Unit
6
110
Quiescent Current
LPW5210 –02
Min.
2.5
IQ
IEN
LPW5210
V
5
www.lowpowersemi.com
µA
Page 3 of 5
Preliminary
Datasheet
LPW5210
Typical Operating Characteristics
Current Limit(A)
Rset VS Current Limit
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
13
10
6.8
5.1
4.7
Rset(KΩ)
Input Current(uA)
60
Input Voltage VS Input Current
50
40
30
20
10
0
2
LPW5210 –02
Version 1.2
Nov.-2013
2.5
3
3.5 4 4.5 5
Input voltage(V)
5.5
Email: [email protected]
6
6.5
www.lowpowersemi.com
Page 4 of 5
Preliminary
Datasheet
LPW5210
Packaging Information
LPW5210 –02
Version 1.2
Nov.-2013
Email: [email protected]
www.lowpowersemi.com
Page 5 of 5
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