Datasheet > G5695

G5695

更新时间： 2024-11-16 01:25:27

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1.4MHz 1A Synchronous Step-Down Regulator

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G5695 数据手册

G5695

Global Mixed-mode Technology

1.4MHz 1A Synchronous Step-Down Regulator

General Description

Features

The G5695 is a high efficiency monolithic synchronous

buck regulator using a constant frequency, current

mode architecture. Supply current during operation is

only 50µA and drops to <1µA in shutdown. The 2.5V

to 6V input voltage range makes the G5695 ideally

suited for single Li-Ion battery-powered applications.

100% duty cycle provides low dropout operation, ex-

tending battery run time in portable systems. Switching

frequency is internally set at 1.4MHz, allowing the use

of small surface mount inductors and capacitors. The

internal synchronous switch increase efficiency and

eliminates the need for an external Schottky diode.

Built-in soft start function eliminates in-rush current

that could damage the system.

High Efficiency: Up to 93%

Low Quiescent Current: Only 50µA During Op-

eration

Internal Soft Start Function

1A Output Current

2.5V to 6V Input Voltage Range

1.4MHz Switching Frequency

No Schottky Diode Required

100% Duty Cycle in Dropout Operation

0.6V Reference Allows Low Output Voltages

<1µA Shutdown Current

Current Mode Operation for Excellent Line and

Load Transient Response

Over Temperature Protected

RoHS Compliant

Applications

Cellular Telephones

Personal Information Appliances

Microprocessors and DSP Core Supplies

Wireless and DSL Modems

Digital Still and Video Cameras

MP3 Players

Portable Instruments

Ordering Information

ORDER

NUMBER

G5695T11U

G5695TO1U

G5695RB1U

OUTPUT

VOLTAGE

Adjustable

TEMP.

PACKAGE

(Green)

MARKING

RANGE

5695x

5695

-40°C~ +85°C

SOT-23-5

TSOT-23-5

TDFN2X2-6

Note:T1: SOT-23-5

1: Bonding Code

U: Tape & Reel

TO:TSOT-23-5

RB: TDFN2X2-6

Pin Configuration

Typical Application Circuit

G5695

2.2µH

G5695

V_IN

4~6V

V_OUT

3.3V

VIN

300mA

VFB

VIN

GND

_FB* (option)

C_IN

2.2µF

CER

Thermal

Pad

C_OUT

10µF

CER

GND

VFB

VIN

82k

GND

VFB

18k

TDFN2X2-6

Note: Recommend connecting the Thermal Pad to

the Ground for excellent power dissipation.

V_OUT= 0.6V × (1+

)

SOT-23-5/TSOT-23-5

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.6

Apr 17, 2013

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