Datasheet > RT2875BQ

RT2875BQ

更新时间： 2024-09-24 15:50:03

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
16页	236K
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中文翻译

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技术参数
数据手册

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RT2875BQ 技术参数

Status：	Active	Vin (min) (V)：	4.5
Vin (max) (V)：	36	Number of Outputs：	1
Vout (min) (V)：	0.6	Vout (max) (V)：	24
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	3	Current Limit (typ) (A)：	5.5
Freq (typ) (kHz)：		Freq (min) (kHz)：	300
Freq (max) (kHz)：	2100	Ext Sync：	Yes
Ron_HS (typ) (mOhm)：	95	Ron_LS (typ) (mOhm)：	70
Iq (typ) (mA)：		Features：	AEC-Q100 Qualified;Adjustable Current Limit;Adjustable Frequency;Adjustable Soft-Start;Force PWM;OCP;Power Good;UVP
Package Type：	TSSOP-14(PP)

RT2875BQ 数据手册

Reference

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RT2875A/B

3A, 36V, Synchronous Step-Down Converter

General Description

Features

^3A Output Current

^Internal N-MOSFETs

^Current Mode Control

The RT2875A/B is a high efficiency, current-mode

synchronousDC-DC step-down converter that can deliver

up to 3A output current over a wide input voltage range

from 4.5V to 36V. The device integrates 95mΩ high-side

and 70mΩ low-side MOSFETs to achieve high conversion

efficiency. The current-mode control architecture supports

fast transient response and simple external compensation.

A cycle-by-cycle current limit function provides protection

against shorted output and an external soft-start eliminates

input current surge during start-up. The RT2875A/B

provides complete protection functions such as input under-

voltage lockout, output under-voltage protection, over-

current protection and thermal shutdown.

^Adjustable Switching Frequency : 300kHz to 2.1MHz

^Adjustable Current Limit : 1.5A to 6A

^Synchronous to External Clock : 300kHz to 2.1MHz

^Adjustable Output Voltage from 0.6V to 24V

^High Efficiency Up to 95%

^Stable with Low ESR Ceramic Output Capacitors

^Cycle-by-Cycle Current Limit

^Input Under-Voltage Lockout

^Output Under-Voltage Protection

 Thermal Shutdown

 AEC-Q100 Grade 2 Certification

The RT2875A/B is available in the thermal enhanced

TSSOP-14 (Exposed Pad) package.

 RoHS Compliant and Halogen Free

Applications

 Point of Load Regulator in Distributed Power Systems

Pin Configuration

(TOP VIEW)

 Digital Set Top Boxes

PGND

RT/SYNC

AGND

RLIM

BOOT

VIN

PGOOD

 Broadband Communications

 Vehicle Electronics

PGND

COMP

TSSOP-14 (Exposed Pad)

Simplified Application Circuit

VIN

BOOT

RT2875A/B

OUT

Enable

PGOOD

OUT

RLIM

COMP

RT/SYNC

COMP

LIM

OSC

AGND PGND

is a registered trademark of Richtek Technology Corporation.

DS2875A/B-08 November 2018

www.richtek.com

12 3 4 5 6 7...16

中文翻译

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与RT2875BQ相关器件

型号	品牌	获取价格	描述	数据表
RT2875BQGCP	RICHTEK	获取价格	Synchronous Step-Down Converter
RT2875DQ	RICHTEK	获取价格	暂无描述
RT2901HYDT	STMICROELECTRONICS	获取价格	Low power quad voltage comparator
RT2902	STMICROELECTRONICS	获取价格	RobuST low-power quad operational amplifier
RT290-20	MARKTECH	获取价格	LEDs
RT290-20_15	MARKTECH	获取价格	LEDs
RT2902YDT	STMICROELECTRONICS	获取价格	RobuST low-power quad operational amplifier
RT2903H	STMICROELECTRONICS	获取价格	RobuST low-power dual voltage comparators
RT2903HYDT	STMICROELECTRONICS	获取价格	RobuST low-power dual voltage comparators
RT290-5	MARKTECH	获取价格	LEDs

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