Datasheet > MAX77533

MAX77533

更新时间： 2024-10-03 14:57:55

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
33页	1958K
描述
14V输入、1.5A输出、9μA IQ、高效buck转换器

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中文翻译

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数据手册

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MAX77533 数据手册

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MAX77533

14V Input, 1.5A High-Efficiency

Buck Converter with 9μA I

SUP

General Description

Benefits and Features

The MAX77533 is a synchronous 1.5A step-down DC-DC

converter optimized for portable 2-cell and 3-cell battery-

operated and USB-C applications. The converter operates

on an input supply between 3V and 14V. Output voltage

is adjustable between 0.8V and 5V in 50mV steps through

● 1.5A Single Channel Buck Regulator

● 3V to 14V Input Voltage Range

● Output Voltage Range

• 0.8V to 5V I C Programmable in 50mV Steps

Internal Feedback

• 1.2V, 1.8V, or 3.3V Factory Preset Options Internal

Feedback

an I C serial interface (internal feedback) or 0.8V to 99%

of the supply voltage with external feedback resistors.

Factory-programmed default voltages of 1.2V, 1.8V, and

3.3V with internal feedback are offered to reduce compo-

• 0.8V to 99%V

Resistors

with External Feedback

SUP

nent count for common rails. The device features a low-I

SKIP mode which allows excellent efficiency at light loads.

● High-Efficiency, Low Supply Current Extends Battery

Life

Dedicated enable and power-OK (POK) pins allow simple

hardware control. An I C serial interface is optionally used

• 94% Peak Efficiency at 7.4V

Inductor)

, 3.3V

(2520

SUP

OUT

for full configuration and control for dynamic voltage scal-

ing and system power optimization.

• 9μA I

(12V

, 1.8V

Internal Feedback

SUP

OUT

Version)

• Selectable Light-Load SKIP and Forced-PWM

Modes

Built-in undervoltage lockout (UVLO), output active dis-

charge, cycle-by-cycle current limit, thermal shutdown,

and short-circuit protection ensure safe operation under

abnormal operating conditions.

● 1MHz or 550kHz Fixed-Frequency Switching

● Hardware or Software Control

• Enable Input and Power-OK Output Pins

• Optional I C Full Control Interface

The MAX77533 is available in a 12-bump, 0.4mm pitch

wafer-level package (WLP).

● Protection Features

• Cycle-by-Cycle Inductor Peak Current Limit

• Short-Circuit Hiccup Mode, UVLO, and Thermal

Shutdown Protections

Applications

● 2-cell/3-cell High Power Density Supplies

● Portable Li+/Li-ion Battery Powered Devices

● Drones, HD Cameras, and Notebook Computers

● Space-Constrained Portable Electronics

• 1ms Default Soft-Start

● Small Size

• 1.85mm x 1.4mm (0.7mm max. height) WLP

• 12-Bump, 0.4mm Pitch, 3 x 4 Array

Ordering Information appears at end of data sheet.

Simplified Application Circuit

EFFICIENCY vs. LOAD

7.4V SUPPLY, 2520 INDUCTOR CASE SIZE

100

MAX77533

3V TO 14V

DC INPUT

BST

SUP

0.22μF

4.7μF

OUT

1.5A MAX

OUT

HARDWARE

V_OUT= 5.0V (EXT FB)

V _OUT= 3.3V (INT FB)

V_OUT= 1.8V (INT FB)

V_OUT= 1.2V (INT FB)

V _OUT= 0.8V (INT FB)

BIASEN

SDA

POK

POWER-OK

2.2μF

OR SOFTWARE

ENABLE

SCL

FEEDBACK

OUT

RANGE

AGND

PGND

INTERNAL

EXTERNAL

0.8V TO 5V

0.8V TO 99%V_SUP

SKIP MODE

0.00001 0.0001 0.001

0.01

0.1

14V, 1.5A HIGH-EFFICIENCY BUCK CONVERTER

OPTIMIZED FOR 2 OR 3 CELL BATTERY APPLICATIONS

LOAD CURRENT (A)

19-100790; Rev 2; 5/21

12 3 4 5 6 7...33

中文翻译

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与MAX77533相关器件

型号	品牌	获取价格	描述	数据表
MAX77540	ADI	获取价格	16VIN/6A双相高效降压转换器
MAX77541	ADI	获取价格	5.5VIN/6A双相高效降压转换器
MAX77542	ADI	获取价格	16VIN/16A 四相高效降压转换器
MAX77596	ADI	获取价格	24V、300mA、降压转换器，1.1μA IQ
MAX77597	ADI	获取价格	IQ为1.1μA的36V、300mA、降压转换器
MAX775C/D	MAXIM	获取价格	-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers
MAX775CPA	MAXIM	获取价格	-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers
MAX775CSA	MAXIM	获取价格	-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers
MAX775CSA	ROCHESTER	获取价格	SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO8, 0.150 INCH, PLASTIC, SOIC-8
MAX775CSA+	MAXIM	获取价格	Switching Controller, Current-mode, 0.5A, 300kHz Switching Freq-Max, CMOS, PDSO8, 0.150 IN

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