Datasheet > ELM600-SERIES

ELM600-SERIES

更新时间： 2024-11-24 01:23:03

品牌	Logo	应用领域
ELM-TECH		/
页数	文件大小	规格书
7页	1443K
描述
PWM step down DC/DC converter

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中文翻译

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数据手册

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ELM600-SERIES 数据手册

1A 1.5MHz

ELM600xB

high efficiency synchronous PWM step down DC/DC converter

http://www.elm-tech.com

■General description

ELM600xB is a high efficiency step down DC/DC converter operated with current mode and constant

frequency. The internal switch and synchronous rectifier are integrated for high efficiency. External Schottky

diodes are not required. The supply current is only 100μA during operation and drops to less than 1μA in

shutdown. ELM600xB can supply 1A of load current from 2.5V to 5.5V supply voltage.

The switching frequency is set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. It

can run 100% duty cycle for low dropout application. The output voltage of ELM600xB is adjustable from the

FB pin.

■Features

■Application

• Current mode operation

• Cellular phone

• Thermal shutdown protection and short circuit protection

• PDA and smart phone

• MP3 player

• Constant frequency

• Output current

• High efficiency

• Shutdown current

• Supply voltage

• Low quiescent current

• Full duty ratio

: Typ.1.5MHz

: 1A

• Digital camera

: Max.95%

• Wireless and DSL card

• Microcomputer and DSP power supply

• Portable machine

: Max.1µA(Ven=0V, Vin=5.5V)

: 2.5V to 5.5V

: Typ.110µA(Outgoing stopped)

: 0 to 100% (in dropout)

: DFN6-2x2, TSOT-25

• Package

■Maximum absolute ratings

Parameter

VIN power supply voltage

Apply voltage to SW

Apply voltage to EN

Apply voltage to FB

SW peak current

Symbol

Vin

Vsw

Ven

Vfb

Isw

Limit

-0.3 to +6.0

Unit

GND-0.3 to Vin+0.3

3.0 ^(*2)

1000 (DFN6-2x2) ^(*3)

600 (TSOT-25) ^(*3)

-40 to +85

Power dissipation

Operating temperature range

Storage temperature range

Caution:

Top

Tstg

°C

-65 to +150

* 1. Permanent damage to the device may occur when ratings above maximum absolute ones are used.

* 2. Output current must not exceed power dissipation specified in maximum absolute ratings.

* 3. Mounted on glass epoxy board (FR-4). (76.2mm×114.3mm×1.6mm : based on EIJ/JEDEC standard size), 2layers,

Cu thickness 35μm, Cu area : top side 20%, back side 100%.

Rev.1.0

7 - 1

12 3 4 5 6 7

中文翻译

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