Datasheet > ELM621LA

ELM621LA

更新时间： 2024-11-24 01:19:55

品牌	Logo	应用领域
ELM		/
页数	文件大小	规格书
9页	527K
描述
High efficiency 30V 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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ELM621LA 数据手册

High efﬁciency 30V step up DC/DC converter

ELM621LA

■General description

ELM621LA is a high efficiency step-up DC/DC converter using a constant frequency, current mode

architecture. Featuring current-mode and fixed frequency operation, this device incorporates an integrated

main switch and the switching frequency is internally set at 1.3MHz, allowing the use of small surface mount

inductors and capacitor. As for the output voltage, it can be regulated ranging from 2.7V to 30V.

ELM621LA is available in a low proﬁle TSOT-25 package.

■Features

■Application

• Current mode operation

• Thermal shutdown protection

• Undervoltage-lockout (UVLO)

• Input voltage range

• Internal current limit

• Shutdown current

• Cellular telephones

• PDAs and smart phones

• MP3 players

: 2.5V to 5.5V

: 1.45A

• Wireless and DSL card

• Digital still cameras

• Slim-type DVD

: < 0.1µA

: Typ.1.3MHz

: 90%

• Constant frequency operation

• High efﬁciency

• Portable instruments

• Package

: TSOT-25

■Maximum absolute ratings

Parameter

VIN power supply voltage

Apply voltage to EN

Apply voltage to FB

Apply voltage to SW

SW peak current

Power dissipation

Operating temperature range

Storage temperature range

Symbol

Limit

GND-0.3 to +6.5

GND-0.3 to +43

Unit

Vin

Ven

Vfb

Vsw

Isw

200

-20 to +85

-65 to +150

°C

Top

Tstg

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

■Selection guide

ELM621LA-S

Symbol

ELM621LA - S

Package

Product version

Taping direction

L: TSOT-25

S: Refer to PKG file

↑ ↑ ↑

a b c

Taping direction is one way.

Rev.1.2

9 - 1

12 3 4 5 6 7...9

中文翻译

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