UM17528_16 Datasheet, PDF (1/7 Pages) Union Semiconductor, Inc. – 300mA, Micropower, VLDO Linear Regulator

UM175xx
300mA, Micropower, VLDO Linear Regulator
UM175xx SOT23-5
General Description
The UM175xx series are VLDO (very low dropout) linear regulators designed for low power
portable applications. Maximum dropout is just 90mV at the load current of 150mA.The internal
P-channel MOSFET pass transistor requires no base current, allowing the device to draw only
100μA during normal operation at the maximum load current of 300mA.
Other features include high output voltage accuracy, excellent transient response, under voltage
lockout, stability with ultralow ESR ceramic capacitors as small as 1μF, reverse-battery protection,
short-circuit and thermal overload protection and output current limiting.
The UM175xx series are available in a low profile SOT23-5 package.
Applications
Features
 Bluetooth/802.11 Cards
 PDAs and Notebook Computers
 Portable Instruments and
Battery-Powered Systems
 Cellular Phones
 Very Low Dropout: 90mV(Max) at 150mA
 Maximum Input Voltage: 6.0V
 ±2%Voltage Accuracy at 150mA
 Fast Transient Response
 Under Voltage Lockout
 Fixed Output Voltage: 3.3V/2.8V
 Output Current Limit
 Reverse-Battery Protection
 No Protection Diodes Needed
 Stable with 1μF Output Capacitor
 Short-Circuit and Thermal Overload
Protection
 Low Profile SOT23-5 Package
Pin Configurations
Top View
M: Month Code
UM175xx
SOT23-5
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http://www.union-ic.com Rev.06 May.2016
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