Datasheet > MAX77839

MAX77839

更新时间： 2024-11-05 14:58:11

品牌	Logo	应用领域
亚德诺 - ADI		升压转换器开关
页数	文件大小	规格书
23页	958K
描述
5.5V输入、4.4A/3.6A开关电流、6μA IQ降压-升压转换器

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数据手册

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MAX77839 数据手册

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MAX77839

5.5V Input, 4.4A/3.6A Switching Current 6μA I

Buck-Boost Converter

General Description

Benefits and Features

The MAX77839 is a highly-efficient buck-boost regulator

with an industry leading quiescent current of 6μA targeted

for one-cell Li-ion and down to any battery chemistry with

1.8V discharge voltage. It supports input voltages of 1.8V

to 5.5V and an output voltage range of 2.3V to 5.3V. The

IC provides two different switching current limits to opti-

mize external component sizing based on given load cur-

rent requirements ("A" and "B" = 4.4A (typ), "C" and "D" =

3.6A (typ)), and two different GPIO pin configurations ("A"

and "C" = FPWM pin,"B" and "D" = POK pin). These op-

tions provide design flexibility that allow the IC to cover a

wide range of applications and use cases while minimizing

board space.

● Flexible System Integration

• 1.8V to 5.5V Input Voltage Range

• 2.3V to 5.3V Single Resistor Adjustable Output

• 3A Maximum Output Current

• 4.4A I , See TOC 24 ("A" and "B" Options)

LIM

• 3.6A I , See TOC 23 ("C" and "D" Options)

LIM

• 96% Peak Efficiency (V = 3.6V, V

= 3.3V)

OUT

• Optional GPIO Pin (FPWM Input, POK Output)

● Low Supply Current that Extends Battery Life

• Skip Mode that Reduces Supply Current at Light

Loads

• 6μA Ultra-Low I

● 2.2MHz (typ) Switching Frequency

● Integrated Protections that Provide System

Robustness

The IC features a single-resistor adjustable output voltage

from 2.3V to 5.3V. A configurable GPIO pin allows to se-

lect either a FPWM mode control input or a POK open

drain output, depending on the system requirements.

Maxim's unique buck-boost controller technology provides

high efficiency, excellent load and line transient response,

and a seamless transition between buck and boost modes

of operation.

• Undervoltage Lockout (UVLO)

• Overvoltage Protection (OVP)

• Cycle-by-Cycle Inductor Peak Current Limit

• Thermal Shutdown (T

)

SHDN

● Active Output Discharge

● Small Solution Size

The MAX77839 is available in both a 2.07mm x 1.51mm,

15-bump wafer-level package (WLP), and a 2.5mm x

2.0mm, 11-lead FC2QFN package.

• 2.07mm x 1.51mm, 0.4mm Pitch, 15-Bump WLP

• 2.5mm x 2.0mm, 0.5mm Pitch, 11-Pin FC2QFN

Applications

● Asset Tracking/Fleet Management

● 5G/2G/GSM Cellular Power

● RF Amplifier

● Smartphones ToF/Facial and Gesture Recognition

● System Power Pre-Regulation

● Single-Cell Li-ion Battery Powered Devices

19-100983; Rev 2; 1/22

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...23

中文翻译

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与MAX77839相关器件

型号	品牌	获取价格	描述	数据表
MAX77840	ADI	获取价格	3A降压充电器，具备ModelGauge m5电池电量计和USB BC1.2检测
MAX77847	ADI	获取价格	5.5V 输入、4.5A 开关电流高效升降压转换器
MAX77857	ADI	获取价格	2.5V至16V输入、7A开关电流高效降压-升压转换器
MAX77859	ADI	获取价格	2.5V to 22V Input, 7.8A Switching Current High-Efficiency Buck-Boost Converter for USB-PD/
MAX77860	ADI	获取价格	USB Type-C、3A、开关模式Buck充电器，具有集成CC检测、反向升压和ADC
MAX77860EWG+	MAXIM	获取价格	Power Supply Management Circuit,
MAX77860EWG+T	MAXIM	获取价格	Power Supply Management Circuit,
MAX77863	MAXIM	获取价格	Complete System PMIC, Featuring 13 Regulators, 8 GPIOs, RTC, and Flexible Power Sequencing
MAX77863	ADI	获取价格	完备的系统PMIC，具有13个调节器、8路GPIO、RTCD和灵活电源排序，适用于多核心应
MAX77863AEWJ	MAXIM	获取价格	Complete System PMIC, Featuring 13 Regulators, 8 GPIOs, RTC, and Flexible Power Sequencing

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