Datasheet > RT7240A

RT7240A

更新时间： 2024-04-09 19:01:56

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
15页	213K
描述
5A, 18V, 650kHz, ACOT? Synchronous Step-Down Converter

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RT7240A 数据手册

RT7240A

Pin Configuration

(TOP VIEW)

VIN

BOOT

PGND

VREG5

PGND

SOP-8 (Exposed Pad)

Functional Pin Description

Pin No.

Pin Name

Pin Function

Enable Control Input. A logic-high enables the converter; a logic-low forces the IC into

shutdown mode reducing the supply current to less than 10A.

Feedback Voltage Input. It is used to regulate the output of the converter to a set

value via an external resistive voltage divider. The feedback threshold voltage is

0.765V typically.

Internal Regulator Output. Connect a 1F capacitor to GND to stabilize output

voltage.

VREG5

Soft-Start Time Setting. Connect an external capacitor between this pin and GND to set

the soft- start time.

5, 9

(Exposed Pad)

Power Ground. The exposed pad must be soldered to a large PCB and connected to

PGND for maximum power dissipation.

PGND

Switch Node. Connect this pin to an external L-C filter.

Bootstrap Supply for High Side Gate Driver. Connect a 0.1F capacitor between the

BOOT and SW pin.

BOOT

Power Input. The input voltage range is from 4.5V to 18V. Must bypass with a suitably

large (10F x 2) ceramic capacitor.

VIN

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS7240A-01 January 2022

123 4 5 6 7...15

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