EUP7987-18VIR1 datasheet(1/11 Pages) EUTECH

Part #	EUP7987-18VIR1

Description	300mA Low-Noise Ultra Low-Dropout CMOS Regulator

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Manufacturer	EUTECH [Eutech Microelectronics Inc]

Direct Link	http://www.eutechmicro.com

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EUP7987

DS7987 Ver 1.5 May .2005

1

300mA Low-Noise Ultra Low-Dropout

CMOS Regulator

DESCRIPTION

The EUP7987 low-noise, low-dropout, linear

regulator operates from a 2.5V to 5.5V input and is

guaranteed to deliver 300mA.

The EUP7987 is stable with small 2.2µF ceramic

capacitor. Its performance suits battery powered

applications because of its shutdown mode (60 nA

typ), low quiescent current (110µA typ), and LDO

voltage (140mV typ). The low dropout voltage

allows for more utilization of a battery’s available

energy by operating closer to its end-of-life voltage.

The EUP7987 is available in 1.8V, 2.5v, 2.8V, 3V,

3.3V, and adjustable versions.

FEATURE

300mA Guaranteed Output Current (500mA for

Pulsed Loads)

60dB PSRR at 1kHz

50µ VRMS Output Voltage Noise

140mV Dropout at 300mA Load

Low 110µA No-Load Supply Current

≤ 1µA Shutdown Current

Fast Start-up Time

Stable With 2.2µF Ceramic Output Capacitors

Thermal Shutdown and Short-Circuit Protection

SOT23-5 and SOT23-6 Package

RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONS

Wireless Handsets

DSP Core Power

Battery Powered Electronics

Portable Information Appliances

Block Diagram

Figure1.

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EUP7987-18VIR1 Datasheet(PDF) 1 Page - Eutech Microelectronics Inc

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