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

60V_IN, 3.5A, Asynchronous Step-Down Converter with Low

Quiescent Current

General Description

Features

 Wide Input Voltage Range

The RT6363 is a 3.5A, high-efficiency, peak current mode

control asynchronous step-down converter. The device

operates with input voltages from 4V to 60V. The device

can program the output voltage between 0.8V to VIN. The

low quiescent current design with the integrated low R_DS(ON)

of high-side MOSFET achieves high efficiency over the

wide load range. The peak current mode control with simple

external compensation allows the use of small inductors

and results in fast transient response and good loop

stability.

 4.5V to 60V

 4V to 60V (Soft-start is finished)

 Wide Output Voltage Range : 0.8V to VIN

 0.8V 1% Reference Accuracy

 Peak Current Mode Control

 Integrated 80mΩ High-Side MOSFET

 Low Quiescent Current : 100μA

 Low Shutdown Current : 2.25μA

 Adjustable Switching : 100kHz to 2.5MHz

 Synchronizable Switching : 300kHz to 2.2MHz

 Power Saving Mode (PSM) at Light Load

 Low Dropout at Light Loads with Integrated Boot

Recharge FET

The wide switching frequency of 100kHz to 2500kHz allows

for efficiency and size optimization when selecting the

output filter components. The ultra-low minimum on-time

enables constant-frequency operation even at very high

step-down ratios. For switching noise sensitive

applications, it can be externally synchronized from

300kHz to 2200kHz.

 Externally Adjustable Soft-Start by Part Number

Option

 Power Good Indication by Part Number Option

 Enable Control

The RT6363 provides complete protection functions such

as input under-voltage lockout, output under-voltage

protection, output over-voltage protection, over-current

protection, and thermal shutdown. Cycle-by-cycle current

limit provides protection against shorted outputs, and soft-

start eliminates input current surge during start-up. The

RT6363 is available in WDFN-10L 4x4 and SOP-8

(Exposed pad) packages.

 Adjustable UVLO Voltage and Hysteresis

 Built-In UVLO, UVP, OVP, OCP, OTP

Applications

 12V, 24V and 48V Power Systems

 GPS, Entertainment

Simplified Application Circuit

BOOT

RT6363GQW

RT6363GSP

VIN

BOOT

VIN

BOOT

OUT

FB1

Enable Signal

PGOOD

Enable Signal

PGOOD

FB2

RT/SYNC

COMP

COMP1

COMP

COMP1

SS/TR

COMP2

RT/SYNC

PAD

GND

PAD

is a registered trademark of Richtek Technology Corporation.

DS6363-01 March 2020

www.richtek.com

12 3 4 5 6 7...35

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