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AP2014NA

更新时间： 2024-10-18 04:06:23

品牌	Logo	应用领域
易亨 - ANACHIP		控制器
页数	文件大小	规格书
12页	234K
描述
Synchronous PWM Controller

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AP2014NA 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.77
Base Number Matches：	1

AP2014NA 数据手册

AP2014/A

Synchronous PWM Controller

Features

General Description

- Synchronous Controller in 8-Pin Package

- Operating with single 5V or 12V supply voltage

- Internal 200KHz Oscillator (400KHz for AP2014A)

- Soft-Start Function

The AP2014 controller IC is designed to provide a

low cost synchronous Buck regulator for on-board

DC to DC converter applications. With the migration

of today’s ASIC products requiring low supply

voltages such as 1.8V and lower, together with

currents in excess of 3A, traditional linear regulators

are simply too lossy to be used when input supply is

5V or even in some cases with 3.3V input supply.

The AP2014 together with dual N-channel

MOSFETs such as AF9410, provide a low cost

solution for such applications. This device features

an internal 200KHz oscillator (400KHz for "A"

version), under-voltage lockout for both Vcc and Vc

supplies, an external programmable soft-start

function as well as output under-voltage detection

that latches off the device when an output short is

detected.

- Fixed Frequency Voltage Mode

- 500mA Peak Output Drive Capability

- Protects the output when control FET is shorted

- SOP-8L/PDIP-8L Pb-Free package

Applications

- Graphic Card

- Hard Disk Drive

- DDR memory source sink Vtt application

- Low cost on-board DC to DC such as 5V to 3.3V,

2.5V or 1.8V

Pin Assignments

Pin Descriptions

Name

No.

Description

This pin is connected directly to the output of the

switching regulator via resistor divider to provide

feedback to the Error amplifier.

(Top View)

This pin provides biasing for the internal blocks of

the IC as well as power for the low side driver. A

minimum of 1uF, high frequency capacitor must be

connected from this pin to ground to provide peak

drive current capability.

Vcc

LDrv

GND

HDrv

Comp

AP2014/A

LDrv

GND

Output driver for the synchronous power MOSFET.

This pin serves as the ground pin and must be

connected directly to the ground plane. A high

frequency capacitor (0.1 to 1uF) must be connected

from V5 and V12 pins to this pin for noise free

operation.

HDrv

SOP-8L/PDIP-8L

Output driver for the high side power MOSFET.

This pin is connected to a voltage that must be at

least 4V higher than the bus voltage of the switcher

(assuming 5V threshold MOSFET) and powers the

high side output driver. A minimum of 1uF, high

frequency capacitor must be connected from this

pin to ground to provide peak drive current

capability.

Comp

Compensation pin of the error amplifier. An external

resistor and capacitor network is typically connected

from this pin to ground to provide loop

compensation.

This pin provides soft-start for the switching

regulator. An internal current source charges an

external capacitor that is connected from this pin to

ground which ramps up the output of the switching

regulator, preventing it from overshooting as well as

limiting the input current. The converter can be

shutdown by pulling this pin below 0.5V.

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this

product. No rights under any patent accompany the sale of the product.

Rev. 1.2 Nov 29, 2005

1/12

12 3 4 5 6 7...12

中文翻译

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与AP2014NA相关器件

型号	品牌	获取价格	描述	数据表
AP2014S	ICT	获取价格	Switching Controller, Voltage-mode, 0.5A, 230kHz Switching Freq-Max, PDSO8, LEAD FREE, SOP
AP2014S	ANACHIP	获取价格	Synchronous PWM Controller
AP2014SA	ANACHIP	获取价格	Synchronous PWM Controller
AP2014SA	ICT	获取价格	Switching Controller, Voltage-mode, 0.5A, 230kHz Switching Freq-Max, PDSO8, LEAD FREE, SOP
AP2014SG-13	DIODES	获取价格	SYNCHRONOUS PWM CONTROLLER
AP2014SL	DIODES	获取价格	Switching Controller, Voltage-mode, 0.001A, 230kHz Switching Freq-Max, PDSO8, ROHS COMPLIA
AP2014SL-13	DIODES	获取价格	SYNCHRONOUS PWM CONTROLLER
AP2014SM	DIODES	获取价格	SYNCHRONOUS PWM DC-DC BUCK CONTROLLER
AP2014SM-13	DIODES	获取价格	SYNCHRONOUS PWM DC-DC BUCK CONTROLLER
AP2014SM-7	DIODES	获取价格	SYNCHRONOUS PWM DC-DC BUCK CONTROLLER

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