Datasheet > RT6339BH

RT6339BH

更新时间： 2024-04-09 18:58:01

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
54页	1354K
描述
11A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO

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RT6339BH 数据手册

RT6339

11A, 23V Synchronous Step-Down Converter with 3.3V/5V

LDO

General Description

Features

⚫ Input Voltage Range

The RT6339 family are high efficiency synchronous

step-down DC-DC converters with pseudo constant

switching frequency 500kHz and deliver up to 11A

 RT6339A/B/D and RT6339AH/BH/DH: 4.5V to

23V

 RT6339C/CH: 5.2V to 23V

output

current.

The

RT6339A/B/D

and

⚫ Output Voltage

RT6339AH/BH/DH operate from 4.5V to 23V input

voltage. The output voltage of RT6339A/AH/D/DH is

programmable between 0.6V to 5.5V and RT6339B/BH

is fixed to 3.3V output voltage. The input voltage of

RT6339C/CH ranges from 5.2V to 23V and the output

voltage of RT6339C/CH is fixed to 5.1V.

 RT6339A/AH and RT6339D/DH: 0.6V to 5.5V

 RT6339B/BH: 3.3V

 RT6339C/CH: 5.1V

⚫ 11A Continuous Output Current

⚫ Stable with POSCAP and MLCC Capacitor

⚫ Fast Transient Response

The RT6339 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 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, RT6339

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, RT6339

provides the best light-load efficiency and improves the

acoustic noise with spread spectrum function.

⚫ LDO

 RT6339B/BH: 3.3V/100mA

 RT6339C/CH: 5V/100mA

⚫ Overcurrent Limit

 RT6339A/AH: Adjustable (13A, 15A or 17A)

 RT6339D/DH: Adjustable (6.5A, 16A or 25.8A)

 RT6339B/BH/C/CH: 16A

RT6339 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.

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

 RT6339A/B/C/D: Latched Mode UVP/OVP

 RT6339AH/BH/CH/DH: Hiccup Mode UVP and

Non-Latched Mode OVP

All above functions are integrated in a UQFN-23L 3x3

(FC) package.

⚫ Input Undervoltage-Lockout (UVLO)

⚫ Over-Temperature Protection (OTP)

 RT6339A/B/C/D: Latched Mode OTP

 RT6339AH/BH/CH/DH: Non-Latched Mode OTP

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

is a registered trademark of Richtek Technology Corporation.

DS6339-00

August 2023

www.richtek.com

12 3 4 5 6 7...54

中文翻译

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与RT6339BH相关器件

型号	品牌	获取价格	描述	数据表
RT6339C	RICHTEK	获取价格	11A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6339CH	RICHTEK	获取价格	11A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6339D	RICHTEK	获取价格	11A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6339DH	RICHTEK	获取价格	11A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
RT6340	RICHTEK	获取价格	暂无描述
RT6341	RICHTEK	获取价格	42VIN, 1.5A, Asynchronous Step-Down Converter with Low Quiescent Current
RT6342	RICHTEK	获取价格	暂无描述
RT6343	RICHTEK	获取价格	暂无描述
RT6345	RICHTEK	获取价格	暂无描述
RT6352A	RICHTEK	获取价格	17V Input, 2A, ACOT? Buck Converter with Both FETs OC Protection

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