Datasheet > RT8110

RT8110

更新时间： 2024-01-20 20:56:00

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
14页	223K
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技术参数
数据手册

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RT8110 技术参数

Status：	Active	Vs (typ) (V)：	5
Vin (min) (V)：	10	Vin (max) (V)：	28
Vout (min) (V)：	0.8	Vout (max) (V)：	5
Preset Vout (V)：		Output Adj. Method：	Resistor
Accuracy (+/- %)：	2	Freq (typ) (kHz)：	400
Freq (min) (kHz)：		Freq (max) (kHz)：
Iq (typ) (mA)：	3	Features：	Force PWM;OCP;SCP;UVP;Voltage Mode Control
Package Type：	TSOT-28

RT8110 数据手册

RT8110

Compact Synchronous Buck DC/DC PWM Controller

General Description

Features

^z8V to 23V Wide Range Operation

^z0.8V Internal Reference

^zInternal Soft Start

The RT8110 is a compact fixed-frequency PWM controller

with integrated MOSFET drivers for single-phase

synchronous buck converter. This part features wide input

voltage range operation and tiny package.An internal pre-

regulator drives an external BJT to provide regulated output

voltage from the input voltage to support VCC. Therefore,

the controller can operate with wide input voltage range.

The RT8110 utilizes voltage-mode control with internal

compensation to simplify the converter design.An internal

0.8V reference voltage allows low output voltage

application. The switching frequency is fixed at 400kHz

to reduce the external passive component size to save

board space. Low-side MOSFET R_DS(ON)is used for

inductor current sensing. The RT8110 provides under

voltage protection, current limit, over current protection

and over temperature protection.

^zHigh DC Gain Voltage Mode PWM Control

^zFixed 400kHz Switching Frequency

^zFast Transient Response

^zFully Dynamic 0 to 80% Duty Cycle

^zOver Current Protection

^zUnder Voltage Protection

^zOver Temperature Protection

^zTiny Package TSOT-23-8

^zRoHS Compliant and 100% Lead (Pb)-Free

Applications

z Set-top Box Power Supplies

z PC Subsystem Power Supplies

z Cable Modems, DSL Modems

z DSP and Core Communication Processor Power

Supplies

Ordering Information

RT8110

Package Type

J8 : TSOT-23-8

z Memory Power Supplies

z Personal Computer Peripherals

z Industrial Power Supplies

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

z Low VoltageDistributed Power Supplies

Note :

Pin Configurations

Richtek products are :

`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.

(TOP VIEW)

Marking Information

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

TSOT-23-8

DS8110-02 April 2011

www.richtek.com

12 3 4 5 6 7...14

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