Datasheet > G5699

G5699

更新时间： 2024-11-16 17:01:43

品牌	Logo	应用领域
致新 - GMT		/
页数	文件大小	规格书
1页	94K
描述
N/A

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

G5699 数据手册

Global Mixed-mode Technology Inc.

G5699

Dual 1.4MHz, 1A Synchronous Step-Down Regulator

General Description

Features

The G5699 is a dual channel high efficiency monolithic

synchronous buck regulator using a constant fre-

quency, current mode architecture. Supply current

during operation is only 50μA and drops to <1μA in

shutdown for each channel. The 2.7V to 5.5V input

voltage range makes the G5699 ideally suited for sin-

gle Li-Ion battery-powered applications. Both regula-

tors have independent input and enable pins. 100%

duty cycle provides low dropout operation, extending

battery run time in portable systems. Switching fre-

quency 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. The G5699 is available

in TDFN3X3-12 package.

High Efficiency: Up to 95%

Internal Soft Start Function

Output Current

Channel 1: 1A

Channel 2: 1A

2.7V to 5.5V 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

Ordering Information

Personal Information Appliances

Microprocessors and DSP Core Supplies

Wireless and DSL Modems

Digital Still and Video Cameras

MP3 Players

ORDER

NUMBER

TEMP.

PACKAGE

(Green)

MARKING

RANGE

G5699RQ1U

5699

-40°C~ +85°C TDFN3X3-12

Portable Instruments

Note: RQ: TDFN3X3-12

1: Bonding Code

U: Tape & Reel

Pin Configuration

Typical Application Circuit

G5699

2.2µH

V_IN1

V_OUT1

C_OUT1

VIN1

LX1

G5699

G5625

C_IN1

4.7µF

CER

C_FB1

(option)

4.7µF

CER

EN2

NC2

VIN2

EN1

FB1

LX2

GND

FB1

10 FB2

Thermal

Pad

GND

2.2µH

V_IN2

V_OUT2

VIN2

EN2

LX2

FB2

LX1

NC1

EN1

C_IN2

4.7µF

CER

C_FB2

(option)

C_OUT2

4.7µF

CER

VIN1

TDFN3X3-12

Note: Recommend connecting the Thermal Pad to

the Ground for excellent power dissipation.

)

V_OUT1= 0.6V • (1+

V_OUT2= 0.6V • (1+

)

* Refer to Table. 1 for Component Selection

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.5

Jul 23, 2009

中文翻译

下载PDF

与G5699相关器件

型号	品牌	获取价格	描述	数据表
G569C	GMT	获取价格	CD-RW Laser Diode Current Driver
G569CS8U	GMT	获取价格	CD-RW Laser Diode Current Driver
G569CS8UF	GMT	获取价格	Interface Circuit
G570	GMT	获取价格	Dual-Slot PCMCIA/CardBus Power Controller
G570S4	GMT	获取价格	Dual-Slot PCMCIA/CardBus Power Controller
G570SA	GMT	获取价格	Dual-Slot PCMCIA/CardBus Power Controller
G571	ETC	获取价格	Single-Slot PCMCIA/CardBus Power Controllers
G5719	GMT	获取价格	1MHz, 2A Synchronous Step-Down Regulator
G5719B	GMT	获取价格	1MHz, 3A Synchronous Step-Down Regulator
G5719BRC1U	GMT	获取价格	Switching Regulator, Current-mode, 1000kHz Switching Freq-Max, PDSO8, TDFN-8