Datasheet > RT6320C

RT6320C

更新时间： 2024-09-27 17:00:47

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
46页	1231K
描述
12A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO

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RT6320C 数据手册

RT6320

12A, 23V Synchronous Step-Down Converter with 3.3V/5V

LDO

General Description

Features

The RT6320 family are high efficiency synchronous

step-down DC-DC converters with pseudo constant

switching frequency of 500kHz and deliver up to 12A

output current. The RT6320B/C and RT6320BH/CH

operate from 4.5V to 23V input voltage. The output

voltage of RT6320B/BH is fixed to 3.3V. The input

voltage of RT6320C/CH ranges from 5.2V to 23V and

the output voltage of RT6320C/CH is fixed to 5.1V.

⚫ Input Voltage Range

 RT6320B/BH: 4.5V to 23V

 RT6320C/CH: 5.2V to 23V

⚫ Output Voltage

 RT6320B/BH: 3.3V

 RT6320C/CH: 5.1V

⚫ 12A Continuous Output Current

⚫ Stable with POSCAP and MLCC Capacitor

⚫ Fast Transient Response

The RT6320 adopts Advanced Constant On-Time

⚫ Diode Emulation Mode (DEM) for Power Saving

⚫ Ultrasonic Mode (USM) for Avoiding Acoustic

Noise

(ACOT ) control architecture that provides ultra-fast

transient response and further reduces the external

component count. In steady states, the ACOT

⚫ Pseudo Constant Switching Frequency of 500kHz

in CCM

operates at nearly constant switching frequency over

line, load and output voltage ranges and makes the EMI

filter design easier.

⚫ Internal Power MOSFET Switch 17m (high-side)

and 7.5m (low-side)

By setting the voltage of the EN/MODE pin, RT6320

operates either in diode emulation mode (DEM) or

ultrasonic mode (USM) at light load. The USM

maintains operation frequency above 25kHz, which

eliminates the acoustic noise. In the DEM, RT6320

provides the best light-load efficiency and improves the

acoustic noise with spread spectrum function.

⚫ LDO

 RT6320B/BH: 3.3V/100mA

 RT6320C/CH: 5V/100mA

⚫ Overcurrent Limit

 RT6320B/BH/C/CH: 18A

⚫ Output Under-/Overvoltage Protection (UVP/OVP)

 RT6320B/C: Latched Mode UVP/OVP

 RT6320BH/CH: Hiccup Mode UVP and Non-

Latched Mode OVP

RT6320 provides PGOOD indicator for easy system

sequence control. Full protection features are also

integrated in the device, including the cycle-by-cycle

current limit, OVP, UVP, input UVLO and OTP.

⚫ Input Undervoltage-Lockout (UVLO)

⚫ Over-Temperature Protection (OTP)

 RT6320B/C: Latched Mode OTP

 RT6320BH/CH: Non-Latched Mode OTP

⚫ Junction Temperature Range: −40C to 125C

All the above functions are integrated in a UQFN-26L

4x3 (FC) package.

Applications

⚫ Laptop Computers

⚫ Tablet PCs

⚫ Networking Systems

⚫ Servers

⚫ Personal Video Recorders

⚫ Flat Panel Television and Monitors

⚫ Distributed Power Systems

is a registered trademark of Richtek Technology Corporation.

RT6320-00 August 2023

www.richtek.com

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与RT6320C相关器件

型号	品牌	获取价格	描述	数据表
RT6321A	RICHTEK	获取价格	12A, 23V Synchronous Step-Down Converter with Adjustable Output Voltage and Low Power Mode
RT6337A	RICHTEK	获取价格	9A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6337AH	RICHTEK	获取价格	9A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6337B	RICHTEK	获取价格	9A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6337BH	RICHTEK	获取价格	9A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6337C	RICHTEK	获取价格	9A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6337CH	RICHTEK	获取价格	9A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6338A	RICHTEK	获取价格	8A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6338B	RICHTEK	获取价格	8A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6338C	RICHTEK	获取价格	8A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO

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