Datasheet > ELM601BA

ELM601BA

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
7页	1023K
描述
ELM601BA 1.5A 2.5MHz high efficiency synchronous PWM step-down DC/DC converter

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ELM601BA 数据手册

1.5A 2.5MHz

ELM601BA

high efﬁciency synchronous PWM step-down DC/DC converter

■General description

ELM601BA is high efficiency synchronous step down DC/DC converter operated with current mode and

2.5MHz constant frequency; internal switch and synchronous rectifier are integrated for high efficiency. In

application, ELM601BA does not require any external Schottky diode. Internal current consumption under

operation of ELM601BA is as low as 300µA and shutdown current is Typ.1μA. With supply voltage from 2.9 V

to 5.5V, ELM601BA can supply load current of 1.5A. The output voltage range of ELM601BA is 1V to 5V, and

can be adjusted by FB pin.

With 2.5MHz switching frequency, ELM601BA makes it possible to adopt small surface amount inductors and

capacitors. Switch duty cycle would be on continuously and 100% at maximum when input voltage is set to be

lower than output voltage.

■Features

■Application

• Bluetooth product

• DSC and PMP

• GPS device

• Low output noise across load range

• Excellent transient response

• Start up into pre-bias output

• Internal soft start

• POL regulator

• Portable HDD

• Wireless LAN

• Input under-voltage lockout

• Over voltage protection

• Short circuit protection

• Thermal shutdown protection

• Input voltage

: 2.9V to 5.5V

• Output voltage range (adj.)

• Output current

: 1V to 5V

: Max.1.5A

: Typ.1μA

: 93%

• Shutdown current

• High efﬁciency

• Constant frequency

: Typ.2.5MHz

• Duty-cycle low dropout operation : 0 to 100%

• Package : SOT-25

■Maximum absolute ratings

Parameter

VIN power supply voltage

Symbol

Vin

Limit

-0.3 to +6.0

Unit

GND-1 to Vin+1 (6V Max.)

GND-1 to Vin-3 (20ns Max.)

-0.3 to +6.0

Apply voltage to SW

Vsw

Apply voltage to VOUT

Apply voltage to EN

Power dissipation

Operating temperature range

Storage temperature range

Vout

Ven

Top

Tstg

°C

GND-0.3 to Vin+0.3

200

-40 to +85

-65 to +150

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

Rev.1.0

7 - 1

12 3 4 5 6 7

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