Datasheet > MAX1627

MAX1627

更新时间： 2023-12-20 18:45:33

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
16页	359K
描述
5V/3.3V或可调、100%占空比、高效率、降压型DC-DC控制器

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中文翻译

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数据手册

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MAX1627 数据手册

EVALUATION KIT AVAILABLE

5V/3.3V or Adjustable,

100% Duty-Cycle, High-Efficiency,

Step-Down DC-DC Controllers

MAX1626/MAX1627

General Description

Benefits and Features

The MAX1626/MAX1627 step-down DC-DC controllers

operate over a 2.6V to 16.5V input voltage range. The

controllers deliver load current from 1mA to more than

2A. The MAX1626 has pin-selectable 3.3V and 5V out-

puts. The MAX1627 supports adjustable outputs from

1.3V to 16V.

• Reduce External Components and Total Cost

• 300KHz PWM Switching Reduces Component Size

• Tiny Surface-Mount Inductor

• Reduce Power Dissipation

• > 90% Efficiency from 3mA to 2A Loads

• Low Dropout Voltage

A unique current-limited, pulse-frequency-modulation

(PFM) control scheme operates up to 100% duty cycle,

resulting in very low dropout voltage. This control

scheme eliminates minimum load requirements and

reduces supply current under light loads to 90µA

(versus 2mA to 10mA for common pulse-width modula-

tion controllers).

• 100% Maximum Duty Cycle

• Reduce Number of DC-DC Controllers to Stock

• Wide 2.6V to 16.5V Input Voltage Options

• Selectable 3.3V and 5V or Adjustable 1.3V to 16V

Output Voltage Options

• Reduce System Power Consumption

• 90µA Max Quiescent Current

• 1µA Max Shutdown Current

The devices are available in a 8-pin SOIC package

(-40°C to +85°C) and dice (0°C to +70°C).

• Operates Reliably in Adverse Environment

Applications

• 5V to 3.3V Green PC Applications

• Battery-Powered Applications

• Handheld Computers

• Soft-Start Limits Startup Current

• Current-Limited Control Scheme

• Increase Design Flexibility

• External P-Channel MOSFET Allows Output Power

of > 12.5W

• High-Efficiency Step-Down Regulation

• Low-Cost Notebook Computer Supplies

• Minimum Component DC-DC Converters

• PCMCIA Power Supplies

Ordering Information

PART

TEMP RANGE

0°C to +70°C

PIN-PACKAGE

Dice*

MAX1626C/D

MAX1626ESA

MAX1627C/D

MAX1627ESA

-40°C to +85°C

0°C to +70°C

8 SO

• PDAs and Other Handheld Devices

• Portable Terminals

Dice*

-40°C to +85°C

8 SO

* Dice are tested at T = +25°C.

Typical Operating Circuit

Pin Configuration

INPUT

3.3V to 16.5V

TOP VIEW

V+

OUT

3/5 (FB)

SHDN

REF

GND

EXT

MAX1626

SHDN

MAX1626

MAX1627

ON/OFF

EXT

OUTPUT

3.3V

V+

3/5

OUT

REF

GND

( ) ARE FOR MAX1627

19-1075; Rev 1; 5/15

12 3 4 5 6 7...16

中文翻译

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与MAX1627相关器件

型号	品牌	获取价格	描述	数据表
MAX1627C/D	MAXIM	获取价格	5V/3.3V or Adjustable, 100% Duty-Cycle, High-Efficiency, Step-Down DC-DC Controllers
MAX1627ESA	MAXIM	获取价格	5V/3.3V or Adjustable, 100% Duty-Cycle, High-Efficiency, Step-Down DC-DC Controllers
MAX1627ISA	MAXIM	获取价格	Analog IC
MAX162ACNG	MAXIM	获取价格	Complete High-Speed CMOS 12-Bit ADC
MAX162ACNG+	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Parallel, 8 Bits Access, CMOS, P
MAX162ACNG-T	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Parallel, 8 Bits Access, CMOS, P
MAX162ACWG	MAXIM	获取价格	Complete High-Speed CMOS 12-Bit ADC
MAX162ACWG+	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Parallel, 8 Bits Access, CMOS, P
MAX162ACWG+T	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Parallel, 8 Bits Access, CMOS, P
MAX162ACWG-T	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Parallel, 8 Bits Access, CMOS, P

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