APU3039

更新时间： 2024-11-25 12:50:59

品牌	Logo	应用领域
富鼎先进 - A-POWER		控制器
页数	文件大小	规格书
22页	507K
描述
SYNCHRONOUS PWM CONTROLLER

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中文翻译

获取价格

数据手册

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APU3039 数据手册

Technology Licensed from International Rectifier

Advanced Power

Electronics Corp.

APU3039

SYNCHRONOUS PWM CONTROLLER

WITH OVER CURRENT PROTECTION

FEATURES

DESCRIPTION

Current Limit using Lower MOSFET Sensing

The APU3039 controller IC is designed to provide a syn-

Using the 6V internal regulator for charge pump

circuit allows single supply operation up to 18V

chronous Buck regulator and is targeted for applications

where the cost and size is critical. The APU3039 oper-

Programmable Switching Frequency up to 400KHz ates with a single input supply up to 18V. The output

Soft-Start Function

voltage can be programmed as low as 0.8V for low volt-

age applications. Selectable current limit is provided to

tailor to external MOSFET’s on-resistance for optimum

cost and performance. The APU3039 features an uncom-

mitted error amplifier for tracking output voltage and is

capable of sourcing or sinking current for applications

such as DDR bus termination.

0.8V Precision Reference Voltage Available

Uncommitted Error Amplifier Available for DDR

Voltage Tracking Applications

Stable with Ceramic Capacitor

RoHS Compliant

APPLICATIONS

DDR Memory VDDQ/VTT Applications

Graphic Card

This device features a programmable switching frequency

set from 200KHz to 400KHz, under-voltage lockout for

both Vcc and Vc supplies, an external programmable

soft-start function as well as output under-voltage detec-

tion that latches off the device when an output short is

detected.

Hard Disk Drive

Netcom on-board DC to DC regulator application

Output voltage as low as 0.8V

Low Cost On-Board DC to DC

TYPICAL APPLICATION

18V

1uH

1uF

3x 15uF

25V

15uF

Vcc

OUT2

1uF

0.1uF

SS / SD

HDrv

AP9408AGH

0.1uF

APU3039

3.3V @ 8A

OCSet

LDrv

4.7uH

5.76K

REF

Comp

2x 330uF

AP9412AGH

40m

C11

Optional

5600pF

3.16K

Gnd

PGnd

14K

Figure 1 - Typical application of APU3039

PACKAGE ORDER INFORMATION

TA (°C)

DEVICE

PACKAGE

0 To 70

APU3039VN

20-Pin VQFN 5x5

0 To 70

APU3039M

14-Pin Plastic SOIC NB

Data and specifications subject to change without notice.

200806024

12 3 4 5 6 7...22

中文翻译

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与APU3039相关器件

型号	品牌	获取价格	描述	数据表
APU3039M	A-POWER	获取价格	IC SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO14, ROHS COMPLIANT, PLASTIC, SOIC
APU3039VN	A-POWER	获取价格	IC SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, QCC20, 5 X 5 MM, ROHS COMPLIANT, VQFN
APU3046	A-POWER	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER WITH
APU3046O	A-POWER	获取价格	IC DUAL SWITCHING CONTROLLER, 450 kHz SWITCHING FREQ-MAX, PDSO24, ROHS COMPLAINT, PLASTIC,
APU3048	A-POWER	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
APU3048M	A-POWER	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
APU3048O	A-POWER	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
APU3073	A-POWER	获取价格	SYNCHRONOUS PWM CONTROLLER WITH
APU3073O	A-POWER	获取价格	IC SWITCHING CONTROLLER, 460 kHz SWITCHING FREQ-MAX, PDSO16, ROHS COMPLIANT, TSSOP-16, Swi
APU3137	A-POWER	获取价格	8-PIN SYNCHRONOUS PWM CONTROLLER

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