Datasheet > AP1530_09

AP1530_09

更新时间： 2022-10-10 23:45:57

品牌	Logo	应用领域
美台 - DIODES		转换器
页数	文件大小	规格书
12页	252K
描述
18V 3A 300KHz BUCK CONVERTER

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AP1530_09 数据手册

AP1530

18V 3A 300KHz BUCK CONVERTER

General Description

Features

AP1530 consists of step-down switching regulator with PWM

•

Input voltage: 3.6V to 18V.

Output voltage: 0.8V to V_CC

Duty ratio: 0% to 100% PWM control

Oscillation frequency: 300kHz typ.

Current Limit, Enable function

Thermal Shutdown function

Built-in internal SW P-channel MOS

Lead Free package: SOP-8L

control. These devices include

a reference voltage source,

oscillation circuit, error amplifier and internal PMOS.

AP1530 provides low-ripple power, high efficiency, and excellent

transient characteristics. The PWM control circuit is able to vary

the duty ratio linearly from 0 up to 100%. This converter also

contains an error amplifier circuit. An enable function, an over

current protection and a short circuit protection are built inside,

and when OCP or SCP happens, the operation frequency will be

reduced from 300kHz to 50kHz. Also, an internal compensation

block is built in to minimum external component count.

SOP-8L: Available in “Green” Molding Compound

(No Br, Sb) (Note 1)

Lead Free Finish/ RoHS Compliant (Note 2)

•

With the addition of an internal P-channel Power MOS, a coil,

capacitors, and a diode connected externally, these ICs can

function as step-down switching regulators. They serve as ideal

power supply units for portable devices when coupled with the

SOP-8L package, providing such outstanding features as low

current consumption. Since this converter can accommodate an

input voltage up to 18V, it is also suitable for the operation via an

AC adapter.

Applications

•

PCD Motherboard

LCD Monitor

Graphic Card

DVD-Video Player

Telecom Equipment

ADSL Modem

Printer and other Peripheral Equipment

Microprocessor core supply

Networking power supply

Typical Application Circuit

_OUT= 5V/3A

Vcc

Output

V_IN

22uH

R_A

6.8K

R_OCSETC_OCSET

AP 1530

Option

D1*

Option

C _IN

OCSET

C_OUT

0.1uF

470uF

V_SS

R_EN

100K

R_B

1.3K

CVcc

0.1uF

C_EN

0.1uF

V_OUT

R_B

x (

V_FB

R /R_B)

= 0.7K~5K ohm

* Suggested DIODES Power Schottky P/N: B340 series or PDS340.

AP1530 Rev. 7

DS31092

1 of 12

www.diodes.com

NOVEMBER 2009

12 3 4 5 6 7...12

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