Datasheet > RT2872

RT2872

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
15页	280K
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RT2872 技术参数

Status：	Active	Vin (min) (V)：	4.5
Vin (max) (V)：	36	Number of Outputs：	1
Vout (min) (V)：	0.8	Vout (max) (V)：	30
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	3	Current Limit (typ) (A)：	5
Freq (typ) (kHz)：	500	Freq (min) (kHz)：	300
Freq (max) (kHz)：	1000	Ext Sync：	No
Ron_HS (typ) (mOhm)：	105	Ron_LS (typ) (mOhm)：	80
Iq (typ) (mA)：	1	Features：	AEC-Q100 Qualified;Current Mode Control;Cycle-by-Cycle Current Limit;Force PWM;OCP;Stable with Ceramic Capacitor;UVP
Package Type：	PSOP-8

RT2872 数据手册

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RT2872

3A, 36V, Synchronous Step-Down Converter

General Description

Features

^z4.5V to 36V Input Voltage Range

The RT2872 is a high efficiency, current-mode

synchronous step-downDC/DC converter that can deliver

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

from 4.5V to 36V. The device integrates 105mΩ high-side

and 80mΩ low-side MOSFETs to achieve high conversion

efficiency. The current-mode control architecture supports

fast transient response and simple external compensation.

^z3A Output Current

^zInternal N-MOSFETs

^zCurrent Mode Control

^zFrequency Operation : 300kHz to 1MHz

^zAdjustable Output Voltage from 0.8V to 30V

^zHigh Efficiency Up to 95%

^zStable with Low ESR Ceramic Output Capacitors

^zCycle-by-Cycle Current Limit

A cycle-by-cycle current limit function provides protection

against shorted output and an internal soft-start eliminates

input current surge during start-up. The RT2872 provides

complete protection functions such as input under-voltage

lockout, output under-voltage protection, over-current

protection and thermal shutdown.

^zInput Under-Voltage Lockout

^zOutput Under-Voltage Protection

^zThermal Shutdown

z AEC-Q100 Grade 3 Certification

z RoHS Compliant and Halogen Free

The RT2872 is available in the thermal enhanced SOP-8

(Exposed Pad) package.

Applications

z Point of Load Regulator in Distributed Power Systems

Ordering Information

z Digital Set Top Boxes

RT2872

z Broadband Communications

Package Type

SP: SOP-8 (Exposed Pad-Option 2)

z Vehicle Electronics

z AutomotiveAudio,Navigation, and Information Systems

z Enterprise Datacom Platforms Point of Load (POL)

z IndustrialGradeGeneral Purpose Point of Load

Lead Plating System

G : Green (Halogen Free and Pb Free)

Note :

Richtek products are :

Marking Information

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

` Suitable for use in SnPb or Pb-free soldering processes.

RT2872GSP : Product Number

RT2872

YMDNN : Date Code

GSPYMDNN

Simplified Application Circuit

BOOT

RT2872

VIN

OUT

GND

COMP

is a registered trademark of Richtek Technology Corporation.

DS2872-06 January 2018

www.richtek.com

12 3 4 5 6 7...15

中文翻译

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与RT2872相关器件

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RT2875AQ	RICHTEK	获取价格	暂无描述
RT2875AQGCP	RICHTEK	获取价格	Synchronous Step-Down Converter
RT2875BQ	RICHTEK	获取价格	暂无描述
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
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RT290-20_15	MARKTECH	获取价格	LEDs

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