Datasheet > BuckCont> RT9259APS

RT9259APS

更新时间： 2024-11-12 04:32:55

品牌	Logo	应用领域
立锜 - RICHTEK		控制器
页数	文件大小	规格书
14页	244K
描述
12V Synchronous Buck PWM DC-DC and Linear Power Controller

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RT9259APS 数据手册

RT9259A

12V Synchronous Buck PWM DC-DC and Linear Power

Controller

General Description

Features

^zSingle 12V Bias Supply

The RT9259A is a dual-channel DC/DC controller

specifically designed to deliver high quality power where

12V power source is available. This part consists of a

synchronous buck controller and an LDO controller. The

synchronous buck controller integrates MOSFET drivers

that support 12V+12V bootstrapped voltage for high

efficiency power conversion. The bootstrap diode is built-

in to simplify the circuit design and minimize external part

count. The LDO controller drives an external N-MOSFET

for lower power requirement.

^zSupport Dual Channel Power Conversion

`One Synchronous Rectified Buck PWM Controller

`One Linear Controller

^zBoth Controllers Drive Low Cost N-Channel

MOSFETs

^zAdjustable Frequency from 150kHz to 1MHz

and Free-Run Frequency at 230kHz

^zSmall External Component Count

^zOutput Voltage Regulation

`PWM Controller : 1% Accuracy

`LDO Controller : 2% Accuracy

Other features include adjustable operation frequency,

internal soft start, under voltage protection, over current

protection and shut down function. With the above

functions, this part provides customers a compact, high

efficiency, well-protected and cost-effective solution. This

part comes to SOP-14 package.

z Two Internal V_REFPower Support Lower to 0.8V

z Adjustable External Compensation

z Linear Controller Drives N-Channel MOSFET Pass

Transistor

z Fully-Adjustable Outputs

z Under Voltage Protection for Both Outputs

z Adjustable Over Current Protection

z RoHS Compliant and 100% Lead (Pb)-Free

Ordering Information

RT9259A

Package Type

S : SOP-14

Applications

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

z Graphic CardGPU, Memory Core Power

z Graphic Card Interface Power

z Motherboard,Desktop and Servers Chipset and Memory

Core Power

Note :

RichTek Pb-free and Green products are :

`RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

z IA Equipments

z Telecomm Equipments

z High PowerDC-DC Regulators

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

`100% matte tin (Sn) plating.

Pin Configurations

(TOP VIEW)

BOOT

RT_DIS

COMP

UGATE

PHASE

PGND

LGATE

OCSET

VREF

DRV

FBL

GND

VCC12

SOP-14

DS9259A-02 March 2007

www.richtek.com

12 3 4 5 6 7...14

中文翻译

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与RT9259APS相关器件

型号	品牌	获取价格	描述	数据表
RT9259C	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259CGA	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259CGQV	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259CGS	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259CPA	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259CPQV	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259CPS	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259GA	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259GQV	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller
RT9259GS	RICHTEK	获取价格	12V Synchronous Buck PWM DC-DC and Linear Power Controller

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