Datasheet > UM3730DA-22

UM3730DA-22

更新时间： 2024-11-07 00:35:03

品牌	Logo	应用领域
英联电子 - UNIONSEMI		/
页数	文件大小	规格书
11页	546K
描述
150mA, Micropower, Low Dropout Linear Regulator

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UM3730DA-22 数据手册

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_RMSand 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 1.0×1.0 and SOT353 packages.

Applications

Features



Digital Camera



Input Voltage Range: 2.5V to 5.5V

PDAs and Notebook Computers

Portable Instruments and

Battery-Powered Systems

Cellular Phones



Guaranteed 150mA Output Current

±2% Voltage Accuracy at 150mA

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 1.0×1.0 and SOT353

Packages

Typical Application Circuit

UM3730

VIN

VOUT

VIN

1uF

Chip Enable

GND

________________________________________________________________________

http://www.union-ic.com Rev.03 May.2015 1/11

12 3 4 5 6 7...11

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