Datasheet > MAX77801

MAX77801

更新时间： 2024-11-05 14:57:39

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
31页	1384K
描述
5.5V输入，2A 高效率升/降压稳压器

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中文翻译

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MAX77801 数据手册

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5.5V Input, 2A, High-Eﬃciency

Buck-Boost Converter

MAX77801

General Description

Beneﬁts and Features

The MAX77801 is a high-efficiency, step-up/step-down

(buck-boost) converter targeted for single-cell, Li-ion

battery-powered applications. The device maintains a

regulated output voltage from 2.6V to 4.18V across an

input voltage range of 2.3V to 5.5V. The device supports

up to 2A of output current in boost mode and up to 3A in

buck mode.

● V Range: 2.30V to 5.5V

● V

Range: 2.60V to 4.18V (I C Programmable in

OUT

12.5mV Steps)

● Up to 2A Output Current in Boost Mode (V = 3.0V,

OUT

= 3.4V)

● Up to 3A Output Current in Buck Mode

● Up to 97% Peak Efficiency

The device seamlessly transitions between buck and

boost modes. A unique control algorithm allows high-effi-

ciency and outstanding load and line-transient response.

● SKIP Mode for Optimal Light Load Efficiency

● 55μA (Typ) Low Quiescent Current

Dedicated enable and power-OK pins allow simple hard-

● 3.4MHz High-Speed I C Serial Interface

ware control. An I C serial interface is optionally used for

● Dynamic Voltage Scaling (DVS) Function

● Power-OK Output

dynamic voltage scaling, system power optimization, and

fault read-back.

The MAX77801 is available in a 20-bump, 2.13mm x

1.83mm wafer-level package (WLP) and also 20-pin,

4mm x 4mm TQFN.

● 2.5MHz Switching Frequency

● Protection Features

• Soft-Start

• Thermal Shutdown

• Overvoltage Protection

• Overcurrent Protection

Applications

● Single-Cell, Li-Ion Battery-Powered Devices

● Handheld Scanners, Mobile Payment Terminals,

Security Cameras

● 2.13mm x 1.83mm, 20-Bump WLP

● 4mm x 4mm, 20-Pin TQFN

● AR/VR Headsets

Typical Application Circuit

1µH

BOOST TO BUCK

LINE TRANSIENT RESPONSE

MAX77801

LX1

LX2

I_OUT= 1.5A

V_OUT= 3.3V

OUT

DC INPUT

2.3V TO 5.5V

OUT

3.4V

2.6V TO 4.18V

2A (BOOST MODE)

3A (BUCK MODE)

10μF

47μF

SYS

2.9V

500mV/di v

20mV/div

V_IN

1μF

PGND

BOO ST

MO DE

BOO ST

MO DE

BUCK MODE

V_OUT

SDA

SCL

SERIAL HOST

POK

DVS

POWER-OK

DYNAMIC VOLTAGE

SCALING

ENABLE

100µs/di v

HIGH-EFFICIENCY BUCK-BOOST CONVERTER

WITH OPTIONAL I C CONTROL IN TINY 20-BUMP WLP

Ordering Information appears at end of data sheet.

19-7515; Rev 8; 6/23

12 3 4 5 6 7...31

中文翻译

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与MAX77801相关器件

型号	品牌	获取价格	描述	数据表
MAX77812	ADI	获取价格	20A、用户可配置、四相、Buck转换器
MAX77812_V01	MAXIM	获取价格	20A User-Configurable Quad-Phase Buck Converter
MAX77812AEWB+T	MAXIM	获取价格	20A User-Configurable Quad-Phase Buck Converter
MAX77812BEWB+T	MAXIM	获取价格	20A User-Configurable Quad-Phase Buck Converter
MAX77812CEWB+T	MAXIM	获取价格	20A User-Configurable Quad-Phase Buck Converter
MAX77812DEWB+T	MAXIM	获取价格	20A User-Configurable Quad-Phase Buck Converter
MAX77812EWB+	MAXIM	获取价格	Switching Regulator,
MAX77812EWB+T	MAXIM	获取价格	20A User-Configurable Quad-Phase Buck Converter
MAX77812FEWB+T	MAXIM	获取价格	20A User-Configurable Quad-Phase Buck Converter
MAX77813	MAXIM	获取价格	5.5V Input, 2A, High-Efficiency Buck-Boost Converter

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