LPW5206A Datasheet PDF - Low Power Semi

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LPW5206A
Low Power Semi

Part Number LPW5206A
Description USB Power Loading Switch
Page 8 Pages


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Preliminary
LPW5206/A
USB Power Loading Switch
General Description
The LPW5206/A is an integrated 160mpower switch
for self-powered and bus-powered Universal Series 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 (SOT-23-5) is
particularly suitable in battery-powered portable
equipment.
Several protection functions include soft start to limit
inrush current during plug-in, current limiting at
500mA/1A to meet USB power requirement, and thermal
shutdown to protect damage under over current
conditions.
Order Information
LPW5206 □ □ □ □
F: Pb-Free
Package Type
B5: SOT23-5
Current Limit
Default: 500mA
A: 1000mA
Applications
— Power Switch
— USB Device
— Battery Charger Circuits
Features
— 160m Low Rdson,High-side NMOSFET
— Guaranteed 500mA/1000mA Continuous Current
— 2.5V to 7V 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
Typical Application Circuit
VIN
GND
LPW5206
5 Vin
Vout 1
4 EN
NC 3
100K
VOUT
GND
GND
GND
Marking Information
Please see website.
LPW5206/A –07 Ver. 1.7 Datasheet Nov.-2010
www.lowpowersemi.com
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Functional Pin Description
Package Type
Preliminary
Pin Configurations
LPW5206/A
SOT23-5
PIN NAME
1 VOUT Output pin.
2 GND Ground.
3 NC No Connector.
DESCRIPTION
4 EN Device enable (active high).
5 VIN Input pin.
Function Block Diagram
LPW5206/A –07 Ver. 1.7 Datasheet Nov.-2010
www.lowpowersemi.com
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Preliminary
LPW5206/A
Absolute Maximum Ratings
— Input Voltage to GND (VINA, VINB) ---------------------------------------------------------------------------- 7V
— EN Voltage ---------------------------------------------------------------------------------------------0.3V to 7V
— Operating Junction Temperature Range (TJ) ----------------------------------------------------20to 100
— Maximum Soldering Temperature (at leads, 1 0sec) ----------------------------------------------------- 300
— HBM(Human Body Mode)-------------------------------------------------------------------------------------- 2KV
Thermal Information
— Maximum Power Dissipation (PD) ------------------------------------------------------------------------ 0.25W
— Thermal Resistance (JA) ---------------------------------------------------------------------------------- 250/W
Electrical Characteristics
(Over recommended operating conditions unless specified otherwise) VINA =3.6V,EN=High, TA=25)
Symbol
VIN
Iout
RDS(ON)
IQ
ISHDN
VEN(L)
VEN(H)
IEN
Parameter
Input Voltage
Output Current Limited
Output NMOSFET RDS(ON)
Quiescent Current
Shutdown Current
Enable Threshold Low
Enable Threshold High
Input Low Current
Conditions
LPW5206B5F
LPW5206AB5F
Vin=3V
ENB = GND
VINB = VENB = 5.5V
Min.
2.5
500
1000
1.4
-1
LPW5206
Typ.
Max.
6
780
1400
160
16 28
1
0.4
1
Unit
V
mA
mA
m
uA
µA
V
V
µA
LPW5206/A –07 Ver. 1.7 Datasheet Nov.-2010
www.lowpowersemi.com
Page 3 of 8



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Typical Operating Characteristics
Preliminary
LPW5206/A
LPW5206/A –07 Ver. 1.7 Datasheet Nov.-2010
www.lowpowersemi.com
Page 4 of 8



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