Datasheet > RT6363

RT6363

更新时间： 2024-04-09 19:02:44

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
35页	650K
描述
60VIN, 3.5A, Asynchronous Step-Down Converter with Low Quiescent Current

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RT6363 数据手册

RT6363

Functional Pin Description

Pin No.

Pin Name

BOOT

VIN

Pin Function

SOP-8

WDFN-10L 4x4

(Exposed Pad)

Bootstrap capacitor connection node to supply the high-side

gate driver. Connect a 0.1F ceramic capacitor between this

pin and the SW pin.

Power input. The input voltage range is from 4V to 60V.

Connect a suitable input capacitor between this pin and GND,

usually two 2.2F or larger ceramic capacitors with one

typical capacitance 4.7F.

Enable control pin with internal pull-up current source. Float

or provide a logic-high (  1.2V) enables the converter; a

logic-low forces the device into shutdown mode.

Soft-start and tracking control input. Connect a capacitor from

SS to GND to set the soft-start period. ”Do Not” leave this pin

floating to avoid inrush current during power up. It also can

be used to track and sequence because the SS/TR pin

voltage can override the internal reference voltage.

SS/TR

Frequency setting and external synchronous signal input.

Connect a resistor from this pin to GND to set the switching

frequency. Tie to a clock source for synchronization to an

external frequency.

RT/SYNC

Output voltage sense. Sense the output voltage at the FB pin

through a resistive divider. The feedback reference voltage is

0.8V typically.

Compensation node. Connect external compensation

elements to this pin to stabilize the control loop.

COMP

GND

Ground. Provide the ground return path for the control

circuitry.

Switch node. SW is the switching node that supplies power

to the output. Connect the output LC filter from SW to the

output load.

Open-drain power-good indication output. Once being

started-up, PGOOD will be pulled low to GND if any internal

protection is triggered.

PGOOD

Exposed pad. The exposed pad is internally unconnected

and must be soldered to a large PCB copper area for

maximum power dissipation.

9 (Exposed Pad)

11 (Exposed Pad) PAD

is a registered trademark of Richtek Technology Corporation.

DS6363-01 March 2020

www.richtek.com

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