Datasheet > BD90571EFJ-C

BD90571EFJ-C

更新时间： 2024-01-28 17:59:56

品牌	Logo	应用领域
罗姆 - ROHM		转换器
页数	文件大小	规格书
22页	623K
描述
2.69 to 5.5V, 1.2V Output, 2.25MHz Synchronous Step-Down Converter

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BD90571EFJ-C 数据手册

BD90571EFJ-C

Datasheet

Secondary power supply series for automotive

2.69 to 5.5V, 1.2V Output, 2.25MHz

Synchronous Step-Down Converter

BD90571EFJ-C

●General Description

●Key Specifications

■ Input voltage range

■ Output voltage

The BD90571EFJ-C is a synchronous rectification type

step-down DC/DC converter with a 2.25MHz fixed

frequency that operates in with an input voltage range

of 2.69V-5.5V. It has an integrated feedback resistor

2.69V～5.5[V]

1.2 [V] (Typ.)

±2.0[%](-40～+125°C)

2.25 [MHz] (Typ.)

1.0 [A] (Max.)

■ Output voltage accuracy

■ Operating frequency

■ Maximum output current

■ Circuit current at standby

■ Operational temperature

range

that

supplies a fixed output voltage of 1.2V and a

phase compensation constant. Applications can be

created with a minimum of three external components.

Moreover, the integrated Pch and Nch output MOSFET

can supply a maximum output current of 1A.

0[μA](Typ., 25°C)

-40～+125[°C]

●Features

●Package

■

Thanks to the integrated output feedback resistor

HTSOP-J8

4.90 ㎜×6.00 ㎜×1.00 ㎜

and phase compensation, applications can be

created with a minimum of external components

Excellent load response through current mode

control

■

Integrated Pch and Nch output MOSFET

Integrated overcurrent protection with auto-reset

Integrated output overvoltage detection/

short-circuit detection

■

Integrated TSD and UVLO

Light load mode/PWM fixation operation selection

terminal

●Applications

■

Automotive equipment

Car audio and navigation

Other electronic equipment

100

●Typical application circuit

Light Load MODE

1.5μH

1μF

47μF

10μF

PWM MODE

VIN=5.0V

Figure 1 CIRCUIT

Figure 1. Typical application circuit

(VIN=5V, VOUT=1.2V, IOUT=1A)

0.01

0.10

LOAD CURRENT [A]

1.00

Figure 2. Efficiency(VIN=5V)

○Product structure：Silicon monolithic integrated circuit ○This product is not designed to be radiation resistant.

www.rohm.com

TSZ02201-0T1T0AL00030-1-2

31.JUL.2012 Rev.001

1/19

TSZ22111・14・001

12 3 4 5 6 7...22

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