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UM3730P-32

Description
150mA, Micropower, Low Dropout Linear Regulator
File Size477KB,11 Pages
ManufacturerUnion Semiconductor Limited
Websitehttp://www.union-ic.com/
Shanghai Yinglian Electronic Technology Co., Ltd. was established in 2001 and is a fabless integrated circuit design company. The company is committed to the research, development, design and sales of high-performance linear and mixed-signal integrated circuits, and its products are used in various electronic devices. The products of Shanghai Yinglian Electronic Technology Co., Ltd. bridge the analog world and the digital world by detecting, measuring, amplifying, converting power and providing circuit protection.
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UM3730P-32 Overview

150mA, Micropower, Low Dropout Linear Regulator

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UM3730
150mA, Micropower, Low Dropout Linear Regulator
UM3730DA-xx DFN4 1.0×
1.0
UM3730P-xx SOT353
General Description
The UM3730 series are low dropout linear regulators designed for low power portable applications.
Typical output noise is only 220μV
RMS
and typical dropout voltage is 155mV at the load current of
150mA. Ideal for battery powered applications, the UM3730 draws only 29μA current during no
load operation. The UM3730 includes an auto-discharge feature that is activated when the enable
pin is low.
Other features include 2% output voltage accuracy, excellent transient response, stability with ultra
low ESR ceramic capacitors as small as 1μF, thermal overload protection and output current
limiting.
The UM3730 series are available in low profile DFN4 1.0× and SOT353 packages.
1.0
Applications
Digital Camera
PDAs and Notebook Computers
Portable Instruments and
Battery-Powered Systems
Cellular Phones
Features
Input voltage range: 2.5V to 5.5V
Guaranteed 150mA output current
± voltage accuracy at 150mA
2%
Low dropout voltage:
155mV(typical) at 150mA
Low quiescent current: 29μA(typical)
Low noise: 220μV
RMS
(10Hz to 100kHz)
Available fixed output voltage from 1.0V to
3.3V with 0.1V step
Output current limit
Thermal overload protection
Stable with 1μF output capacitor
Low profile DFN4 1.0× and SOT353
1.0
packages
Typical Application Circuit
UM3730
VIN
VIN
1uF
VOUT
1uF
VOUT
Chip Enable
EN
GND
________________________________________________________________________
http://www.union-ic.com Rev.01 Apr.2014
1/11
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