Datasheet > ELM620BA

ELM620BA

更新时间： 2024-11-23 11:46:03

品牌	Logo	应用领域
ELM-TECH		转换器
页数	文件大小	规格书
10页	878K
描述
1.4MHz high efficiency synchronous PWM step up DC/DC converter

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中文翻译

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数据手册

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ELM620BA 数据手册

1.4MHz

ELM620BA

high efﬁciency synchronous PWM step up DC/DC converter

■General description

ELM620BA is synchronous PWM step-up DC/DC converter with high efﬁciency and 1.4MHz ﬁxed frequency;

by adopting synchronous switch, ELM620BA is able to provide high efﬁciency without external Schottky diode.

ELM620BA is able to activate within the range from 0.6V to 5V of input voltage and 2.5V to 6V of output one.

For 3V or 3.3V output, ELM620BA can provide current up to 260mA by a single AA cell, or to 600mA by 2

serial-connected AA cells.

With 1.4MHz switching frequency, small coils and capacitors can be adopted; therefore, ELM620BA is possible

to be assembled within small areas on the board .

■Features

• Current mode control

■Application

• Cellular phone

• Digital camera

• MP3 player

• Output voltage drop protection

• Thermal shutdown protection and short circuit protection

• Input voltage

: 0.6V to 5.0V

: 2.5V to 6.0V

: Typ.300µA

: < 1µA

• Portable machine

• Wireless handset

• Output voltage

• Low current consumption

• Shutdown current

• Low start-up voltage

: Typ.0.9V

• Low switch on (internal switch) resistance : 0.35Ω

• Constant frequency

• High efﬁciency

• Package

: Typ.1.4MHz

: 96%

: SOT-26

■Maximum absolute ratings

Parameter

VIN power supply voltage

Apply voltage to SW

Apply voltage to FB

Apply voltage to EN

Apply voltage to VOUT

Power dissipation

Operating temperature range

Storage temperature range

Symbol

Limit

-0.3 to +6.0

GND-0.3 to Vout+0.3

-0.3 to +6.0

Unit

Vin

Vsw

Vfb

Ven

Vout

250

-30 to +85

-65 to 125

°C

Top

Tstg

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

■Selection guide

ELM620BA-S

Symbol

ELM620BA - S

Package

Product version

Taping direction

B: SOT-26

S: Refer to PKG file

↑ ↑ ↑

a b c

Taping direction is one way.

Rev.1.0

10 - 1

12 3 4 5 6 7...10

中文翻译

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