Datasheet > RT8105GS

RT8105GS

更新时间： 2024-11-13 01:13:11

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
12页	216K
描述
5V/12V Synchronous Buck PWM DC/DC Controller

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中文翻译

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RT8105GS 数据手册

RT8105

5V/12V Synchronous Buck PWM DC/DC Controller

General Description

Features

^zOperating with 5V or 12V Supply Voltage

^zDrives All Low Cost N-MOSFETs

^zVoltage Mode PWM Control

The RT8105 is a high efficiency synchronous buck PWM

controllers that generate logic-supply voltages in PC based

systems. These high performance , single output devices

include internal soft-start, frequency compensation

networks and integrates all of the control, output

adjustment, monitoring and protection functions into a

single package.

^z300kHz Fixed Frequency Oscillator

^zFast Transient Response :

` High-Speed GM Amplifier

` Full 0 to 100% Duty Ratio

^zInternal Soft-Start

The device operating at fixed 300kHz frequency provides

an optimum compromise between efficiency, external

component size, and cost.

^zAdaptive Non-Overlapping Gate Driver

^zOver-Current Fault Monitor on MOSFET, No Current

Sense Resistor Required

Adjustable over-current protection (OCP) monitors the

voltage drop across the R_DS(ON)of the lower MOSFET for

synchronous buck PWM DC/DC controller. The over-

current function cycles the soft-start in 4-times hiccup

mode to provide fault protection, and in an always hiccup

mode for under-voltage protection.

^zFull-Time Over Voltage Protection

z RoHS Compliant and Halogen Free

Applications

z Graphic Card

z Motherboard,Desktop Servers

z IA Equipments

Ordering Information

RT8105

z Telecomm Equipments

z High PowerDC/DC Regulators

Package Type

S : SOP-8

Pin Configurations

(TOP VIEW)

Lead Plating System

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)

BOOT

UGATE

GND

PHASE

OPS

LGATE

VCC

Note :

Richtek products are :

SOP-8

` 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.

Marking Information

RT8105GS

RT8105GS : Product Number

YMDNN : Date Code

RT8105

GSYMDNN

RT8105ZS

RT8105ZS : Product Number

YMDNN : Date Code

RT8105

ZSYMDNN

www.richtek.com

DS8105-03 April 2011

12 3 4 5 6 7...12

中文翻译

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