Datasheet > MAX1674

MAX1674

更新时间： 2024-10-02 14:58:11

品牌	Logo	应用领域
亚德诺 - ADI		DC-DC转换器
页数	文件大小	规格书
12页	451K
描述
高效率、低电源电流、紧凑的、升压型DC-DC转换器

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中文翻译

获取价格

数据手册

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MAX1674 数据手册

EVALUATION KIT AVAILABLE

MAX1674/MAX1675/MAX1676

High-Efficiency, Low-Supply-Current,

Compact, Step-Up DC-DC Converters

General Description

____________________________Features

ꢀ 94% Efficient at 200mA Output Current

ꢀ 16µA Quiescent Supply Current

The MAX1674/MAX1675/MAX1676 compact, high-effi-

ciency, step-up DC-DC converters fit in small µMAX

packages. They feature a built-in synchronous rectifier,

which improves efficiency and reduces size and cost

by eliminating the need for an external Schottky diode.

Quiescent supply current is only 16µA.

ꢀ Internal Synchronous Rectifier (no external diode)

ꢀ 0.1µA Logic-Controlled Shutdown

ꢀ LBI/LBO Low-Battery Detector

The input voltage ranges from 0.7V to V

OUT

teed from 1.1V inputs. The MAX1674/MAX1675/

MAX1676 have a preset, pin-selectable output for 5V or

3.3V. The outputs can also be adjusted to other volt-

ages using two external resistors.

, where

OUT

can be set from 2V to 5.5V. Start-up is guaran-

ꢀ Selectable Current Limit for Reduced Ripple

ꢀ Low-Noise, Anti-Ringing Feature (MAX1676)

ꢀ 8-Pin and 10-Pin µMAX Packages

ꢀ Preassembled Evaluation Kit (MAX1676EVKIT)

All three devices have a 0.3Ω N-channel MOSFET

power switch. The MAX1674 has a 1A current limit. The

MAX1675 has a 0.5A current limit, which permits the

use of a smaller inductor. The MAX1676 comes in a

10-pin µMAX package and features an adjustable cur-

rent limit and circuitry to reduce inductor ringing.

_______________Ordering Information

PART

TEMP. RANGE

-40°C to +85°C

PIN-PACKAGE

8 µMAX

________________________Applications

MAX1674EUA

MAX1675EUA

MAX1676EUB

Pagers

8 µMAX

Wireless Phones

Medical Devices

Hand-Held Computers

PDAs

10 µMAX

RF Tags

Pin Configurations

1 to 3-Cell Hand-Held Devices

TOP VIEW

Typical Operating Circuit

OUT

LBI

INPUT

0.7V TO V

OUT

MAX1674

MAX1675

LBO

REF

GND

SHDN

OUTPUT

3.3V, 5V, OR

ADJ (2V TO 5.5V)

UP TO 300mA

SHDN

OFF

µMAX

MAX1674

MAX1675

OUT

LBI

10 OUT

LOW-BATTERY

DETECT IN

LOW-BATTERY

DETECT OUT

MAX1676

LBI

LBO

GND

BATT

SHDN

REF

GND

CLSEL

REF

0.1µF

µMAX

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-1360; Rev 3; 3/00

12 3 4 5 6 7...12

中文翻译

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与MAX1674相关器件

型号	品牌	获取价格	描述	数据表
MAX1674/MAX1675/MAX1676	MAXIM	获取价格	High-Efficiency Low-Supply-Current Compact Step-Up DC-
MAX1674EUA	MAXIM	获取价格	High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters
MAX1674EUA+T	MAXIM	获取价格	Switching Regulator, Voltage-mode, 1.5A, 500kHz Switching Freq-Max, PDSO8, UMAX-8
MAX1674EUA-T	MAXIM	获取价格	Switching Regulator, Voltage-mode, 1.5A, 500kHz Switching Freq-Max, PDSO8, UMAX-8
MAX1674-MAX1676	MAXIM	获取价格	High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters
MAX1675	MAXIM	获取价格	375MHz Quad Closed Loop Video Buffers.Av = +1 and +2[MAX496/MAX497/MAX496/MAX497/MAX496/MA
MAX1675	ADI	获取价格	高效率、低电源电流、紧凑的、升压型DC-DC转换器
MAX1675EUA	MAXIM	获取价格	High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters
MAX1675EUA+	MAXIM	获取价格	Switching Regulator, Voltage-mode, 1.5A, 500kHz Switching Freq-Max, PDSO8, UMAX-8
MAX1675EUA+T	MAXIM	获取价格	Switching Regulator, Voltage-mode, 1.5A, 500kHz Switching Freq-Max, PDSO8, UMAX-8

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