FAN5235 Datasheet

IC型號(hào)：
FAN5235
PDF描述：
System Electronics Regulator for Mobile PCs
文件大?。?/label>
86.79KB
PDF頁(yè)數(shù)：
15頁(yè)
芯片廠家：
FAIRCHILD

閱覽下載糾錯(cuò) 0

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

www.fairchildsemi.com

FAN5235

System Electronics Regulator for Mobile PCs

Features

鈥?/div>

Synchronous recti鏗乧ation

鹵1% precision internal reference

>90% ef鏗乧iency

Input and output voltage feedback

5.4V to 24V input voltage range

Internally set 300kHz 鹵15% oscillator

5V and 3.3V Main outputs switch out of phase

5V-ALWAYS and 3.3V-ALWAYS outputs

Adjustable boost converter for 12V

Boost converter slaved to 5V Main

Input UVLO

Outputs OVP of Buck Converters

Precision current limit option for 5V, 3.3V Main

Power Good Voltage Monitor

Description

The FAN5235 is a high ef鏗乧iency and high precision

DC/DC controller for notebook converters. Utilization of

both input and output voltage feedback in a current-mode

control allows for fast and stable loop response over a wide

range of input and output voltage variations. The two main

regulators switch out of phase to minimize input ripple

current.

Current sense based on MOSFET Rdson gives maximum

ef鏗乧iency, while also permitting use of a sense resistor for

high accuracy. An externally adjustable boost converter can

be set to generate 12V.

The FAN5235 is available in a 24-pin QSOP package, and in

a 24-pin TSSOP package.

Applications

鈥?Notebook PCs and PDAs

鈥?Hand-held portable instruments

Typical Application

Vin = 5.4-24V

FAN5235

1 VIN

3.3V-ALWAYS@50mA

5V-ALWAYS

2 3.3 ALW

3 CPUMP3.3

4 HSD3.3

3.3V @ 5A

5 SW3.3

5V-ALWAYS@ 50mA

6 5V-ALW

7 LSD3.3

8 GND3.3

9 ISEN3.3

10 VFB3.3

SDN3.3

PGOOD

11 SDN3.3

12 PGOOD

LSD5 20

GND5 19

VFB5 18

SDN5 17

SW12 16

VFB12 15

SGND 14

SDWN 13

SDWN

VFB12

SDN5

12V @ 120mA

CPUMP5 24

HSD5 23

SW5 22

ISEN5 21

5V-ALWAYS

5V @ 5A

REV. 1.3.3 1/3/02

型號(hào)

版本

描述

廠商

下載
FAN5009

英文版

Dual Bootstrapped 12V MOSFET Driver

FAIRCHILD

FAN5009
FAN5009

英文版

Dual Bootstrapped 12V MOSFET Driver

FAIRCHILD ...

FAN5009
FAN5019

英文版

6-Bit VID Controller 2-4 Phase VRM10.X Controller

FAIRCHILD

FAN5019
FAN5019

英文版

6-Bit VID Controller 2-4 Phase VRM10.X Controller

FAIRCHILD ...

FAN5019
FAN5026

英文版

Dual DDR/Dual-output PWM Controller

FAIRCHILD

FAN5026
FAN5026

英文版

Dual DDR/Dual-output PWM Controller

FAIRCHILD ...

FAN5026
FAN5029

英文版

8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller

FAIRCHILD

FAN5029
FAN5031

英文版

8-Bit Programmable, 2 to 4 Phase, Synchronous Buck Controlle...

FAIRCHILD ...

FAN5031
FAN5032

英文版

8-Bit Programmable 2 to 4 Phase Synchronous Buck Controller

FAIRCHILD ...

FAN5032
FAN5033

英文版

8-Bit Programmable, 2- to 3-Phase, Synchronous Buck Controll...

FAIRCHILD ...

FAN5033
FAN5035

英文版

High Performance Programmable DC-DC Controller

FAN5035
FAN5037

英文版

Adjustable Switching Regulator Controller

FAIRCHILD

FAN5037
FAN5037

英文版

Adjustable Switching Regulator Controller

FAIRCHILD ...

FAN5037
FAN5038

英文版

Dual Voltage Controller for DSP Power

FAIRCHILD

FAN5038
FAN5038

英文版

Dual Voltage Controller for DSP Power

FAIRCHILD ...

FAN5038
FAN5059

英文版

High Performance Programmable Synchronous

FAIRCHILD

FAN5059
FAN5059

英文版

High Performance Programmable Synchronous

FAIRCHILD ...

FAN5059
FAN5063

英文版

ACPI Dual Switch Controller

FAIRCHILD

FAN5063
FAN5063

英文版

ACPI Dual Switch Controller

FAIRCHILD ...

FAN5063
FAN5066

英文版

Ultra Low Voltage Synchronous DC-DC Controller

FAIRCHILD

FAN5066

FAN5235 Datasheet

PDF預(yù)覽

FAN5235相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

FAN5235 Datasheet

PDF預(yù)覽

FAN5235相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

建議反饋

PDF糾錯(cuò)X