Datasheet > MAX8557

MAX8557

更新时间： 2024-11-27 14:57:55

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
12页	1335K
描述
4A、超低输入电压LDO稳压器

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中文翻译

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MAX8557 数据手册

EVALUATION KIT AVAILABLE

MAX8556/MAX8557

4A Ultra-Low-Input-Voltage

LDO Regulators

General Description

Beneﬁts and Features

● 1.425V to 3.6V Input Voltage Range

● Guaranteed 4A Output Current

● ±1% Output Accuracy Over Load/Line/Temperature

● 100mV Dropout at 4A Load (typ)

● Built-In Soft-Start

The MAX8556/MAX8557 low-dropout linear regulators

operate from input voltages as low as 1.425V and are

able to deliver up to 4A of continuous output current with a

typical dropout voltage of only 100mV. The output voltage

is adjustable from 0.5V to V - 0.2V.

Designed with an internal p-channel MOSFET pass tran-

sistor, the MAX8556/MAX8557 maintain a low 800μA typi-

cal supply current, independent of the load current and

dropout voltage. Using a p-channel MOSFET eliminates

the need for an additional external supply or a noisy inter-

nal charge pump. Other features include a logic-controlled

shutdown mode, built-in soft-start, short-circuit protection

with foldback current limit, and thermal-overload protec-

tion. The MAX8556 features a POK output that transitions

high when the regulator output is within ±10% of its nomi-

nal output voltage. The MAX8557 offers a power-on reset

output that transitions high 140ms after the output has

achieved 90% of its nominal output voltage.

● 800μA (typ) Operating Supply Current

● 150μA (max) Shutdown Supply Current

● Short-Circuit Current Foldback Protection

● Thermal-Overload Protection

● ±10% Power-OK (MAX8556)

● 140ms Power-On Reset Output (MAX8557)

● Fast Transient Response

● 16-Pin TQFN (5mm x 5mm) Package

Typical Operating Circuit

The MAX8556/MAX8557 are available in a 16-pin TQFN

5mm x 5mm package with exposed paddle.

OUT

0.5V TO V - 0.2V

1.425V TO 3.6V

OUT

Applications

● Servers and Storage

Devices

● Networking

● Base Stations

MAX8556

(MAX8557)

● Optical Modules

● Point-of-Load Supplies

● ATE

POK

(POR)

GND

N.C.

Ordering Information appears at end of data sheet.

19-3257; Rev 3; 4/17

12 3 4 5 6 7...12

中文翻译

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与MAX8557相关器件

型号	品牌	获取价格	描述	数据表
MAX8557ETE	MAXIM	获取价格	4A Ultra-Low-Input-Voltage LDO Regulators
MAX8557ETE+	MAXIM	获取价格	4A Ultra-Low-Input-Voltage LDO Regulators
MAX8557ETE+T	MAXIM	获取价格	Adjustable Positive LDO Regulator, 0.5V Min, 3.4V Max, 0.2V Dropout, BICMOS, 5 X 5 MM, ROH
MAX8559	MAXIM	获取价格	Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN
MAX8559	ADI	获取价格	双路、300mA、低噪声线性稳压器，带有独立的关断控制，UCSP或TDFN封装
MAX8559EBA	MAXIM	获取价格	Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN
MAX8559EBA11+	MAXIM	获取价格	Fixed Positive LDO Regulator, 2 Output, 1.85V1, 1.85V2, BICMOS, PBGA8, 2.06 X 1.03 MM, LEA
MAX8559EBA11-T	MAXIM	获取价格	Fixed Positive LDO Regulator, 2 Output, 1.85V1, 1.85V2, BICMOS, PBGA8, 2.06 X 1.03 MM, UCS
MAX8559EBA22+	MAXIM	获取价格	Fixed Positive LDO Regulator
MAX8559EBA2G	MAXIM	获取价格	Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN

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