Datasheet > RT8810C

RT8810C

更新时间： 2024-09-28 15:50:03

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
22页	424K
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RT8810C 技术参数

Status：	Active	Vin (min) (V)：	4.5
Vin (max) (V)：	13.2	Vout (min) (V)：	0.4
Vout (max) (V)：	2.5	Number of Phases：	2
Accuracy (Vout>=1V) (+/- %)：	1.67	Freq Adj：	Yes
Freq (typ) (kHz)：	200	Features：	Adjustable Frequency;Adjustable Soft-Start;Built-in Bootstrap Switch;DCR Current Sense;Fast Transient Response;OCP;SCP;Voltage Mode Control
Package Type：	WQFN4x4-24

RT8810C 数据手册

RT8810

Dual-Phase Synchronous Buck PWM Controller

General Description

Features

^zSingle IC Supply Voltage : 4.5V to 13.2V

^zSupports Manual / Auto Dynamic Phase Number

Control

The RT8810 is a dual phase synchronous buck controller

which can provide users with a compact, high efficient,

well protected and cost effective solution. The RT8810's

integrated high driving capability MOSFET drivers makes

it more attractive for high current application. The built-in

bootstrap diode simplifies the circuit design and reduces

external part count and PCB space. For output voltage

control, the RT8810 can precisely regulate feedback

voltage according to the internal reference voltage 0.6V or

external reference voltage from 0.4V to 2.5V.

^zIntegrated Bootstrap Diode

^zLossless R_DS(ON)Current Sensing for Current Balance

^zAdjustable Operation Frequency : 100kHz to 1MHz

^zAdjustable Over Current Protection

^zCapacitor Programmable Soft-Start

^zSupport 0% to 80% Duty Cycle

^zSelectable Internal/External V_REF

^zVoltage Mode PWM Control with External

Feedback Loop Compensation

The MODE pin programs single phase or dual phase

operation, making the RT8810 suitable for dual power input

applications such as PCI-Express interface graphic cards.

To set RT8810 at automatic mode, the RT8810 operates

in single phase at light load condition and maintains high

efficiency over a wide range of output currents. In addition,

the RT8810 features adjustable gate driving voltage for

maximum efficiency and optimum performance.

z Phase Crosstalk Jitter Suspend (CJS^TM

z Programmable Quick Response

z Driver Shoot Through Protection

z Supports Current Reporting

)

z 16-Lead WQFN and 24-Lead WQFN Packages

z RoHS Compliant and Halogen Free

The RT8810 adopts lossless R_DS(ON)current sensing

technique for channel current balance and over current

protection. Other features include adjustable soft-start,

adjustable operation phase, and adjustable over current

threshold.

Applications

z GPU Core Power

z Desktop PC Memory, V_TTPower

z Low Output Voltage, High Power Density DC/DC

Converters

z Voltage Regulator Modules

Ordering Information

RT8810

Package Type

QW : WQFN-16L 3x3 (W-Type)

QW : WQFN-24L 4x4 (W-Type)

Lead Plating System

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)

Product Classification

A : Only for WQFN-24L 4x4

B : Only for WQFN-16L 3x3

(With MODE Pin)

C : Only for WQFN-16L 3x3

(With REFIN Pin)

Note :

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.

D : Only for WQFN-24L 4x4

DS8810-01 June 2011

www.richtek.com

12 3 4 5 6 7...22

中文翻译

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RT8816B	RICHTEK	获取价格	暂无描述

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