Datasheet > G5719BRC1U

G5719BRC1U

更新时间： 2024-11-15 21:04:03

品牌	Logo	应用领域
致新 - GMT		开关光电二极管
页数	文件大小	规格书
1页	67K
描述
Switching Regulator, Current-mode, 1000kHz Switching Freq-Max, PDSO8, TDFN-8

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G5719BRC1U 数据手册

G5719B

Global Mixed-mode Technology

1MHz, 3A Synchronous Step-Down Regulator

General Description

Features

High Efficiency: Up to 95%

The G5719B 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 G5719B ideally suited for single

Li-Ion battery-powered applications. 100% duty cycle pro-

vides low dropout operation, extending battery run time in

portable systems. Switching frequency is internally set at

1MHz, allowing the use of small surface mount inductors

and capacitors. The internal synchronous switch increase

efficiency and eliminates the need for an external Schot-

tky diode. Built-in soft start function eliminates in-rush

current that could damage the system. Output latch-off

operation protects the step-down regulator from damage

under short circuit and overvoltage conditions.

Low Quiescent Current: Only 50µA During Opera-

tion

Internal Soft Start Function

Output Current

G5719BTB1U: 2A Continuous, 3A Peak

G5719BRC1U: 3A Continuous

2.5V to 6V Input Voltage Range

1MHz 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

Power Good

Output Short Circuit Latch-off Protection

Output Overvoltage Latch-off Protection

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

TEMP.

RANGE

PACKAGE

(Green)

OUTPUT

VOLTAGE

MARKING

NUMBER

G5719BT11U

G5719BTB1U

G5719BRC1U

519Bx

519B

Adjustable

-40°C to +85°C

SOT-23-5

SOT-23-6

TDFN2X2-8

Note: T1: SOT-23-5 TB: SOT-23-6 RC: TDFN2X2-8

1: Bonding Code

U: Tape & Reel

Pin Configuration

Typical Application Circuit

G5719B

GND

VFB

10k

G5719B

V_IN

4~6V

VIN

2.2µH

V_OUT

3.3V

VIN

VFB

GND

_FB* (option)

SOT-23-5

G5719B

C_IN

2.2µF

CER

Thermal

C_OUT

10µF

CER

PPaadd

VIN

VFB

GND

VFB

GND

82k

18k

TDFN2X2-8

_OUT= 0.6V • (1+

)

VIN

SOT-23-6

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.5

Sep 25, 2013

中文翻译

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与G5719BRC1U相关器件

型号	品牌	获取价格	描述	数据表
G5719BT11U	GMT	获取价格	Switching Regulator, Current-mode, 1000kHz Switching Freq-Max, PDSO5, SOT-23, 5 PIN
G5719BTB1U	GMT	获取价格	Switching Regulator, Current-mode, 1000kHz Switching Freq-Max, PDSO6, SOT-23, 6 PIN
G5719C	GMT	获取价格	1MHz, 3A Synchronous Step-Down Regulator
G571S1	ETC	获取价格	Single-Slot PCMCIA/CardBus Power Controllers
G571SZ	ETC	获取价格	Single-Slot PCMCIA/CardBus Power Controllers
G5723	GMT	获取价格	Synchronous Buck Converter with Low-Noise LDO Regulator
G5723B	GMT	获取价格	EN1, AGND, FB1, AGND, EN2, IN2, OUT2, IN1, PGND, LX
G5725	GMT	获取价格	1MHz 1A Synchronous Step-Down Regulator
G5725/A	GMT	获取价格	EN, GND, LX, VIN, VFB, SS=2ms
G5728	GMT	获取价格	1MHz 1A Synchronous Step-Down Regulator

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