AP1604

更新时间： 2024-11-17 21:54:27

品牌	Logo	应用领域
易亨 - ANACHIP		转换器
页数	文件大小	规格书
7页	202K
描述
PWM/PFM Dual Mode Step-down DC/DC Converter

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AP1604 数据手册

AP1604

PWM/PFM Dual Mode Step-down DC/DC Converter

Features

General Descriptions

The AP1604 series are multi-functional step-down

DC/DC converters with built-in speed, low ON

resistance drivers. It is capable to deliver more than

800mA output current with external coil, diode and

capacitor.

- Input voltage range: 2.2V~5.5V (V_OUTtype)

- Oscillator frequency: 600KHz (Typ.)

- Internal reference: 1.0V (Typ.)

- High efficiency: 93% (Typ .)

- Stand-by capability: I_STB=2µA. (Typ.)

- Soft-start time set-up externally type possible

- Current limit and thermal shutdown protection

- Pb-Free Package: SOT23-5, SON-6(3×3×0.8mm)

Output voltage is set-up by the external resistors. (±

2.5% accuracy). The 600KHz AP1604 that can

work out with small value external components

comes out more compact board.

Applications

The device switches to and works under PFM mode

with light loads. It keeps at high efficiency for both

light loads and large output current.

● Electronic Information Organizers

● Palmtops

● Cellular and portable phones

● Portable Audio Systems

● Various Multi-function Power Supplies

AP1604 can be soft-start with a proper capacitor

connected between CE/SS pin and ground. The

stand-by current is less than 2uA when CE/SS pin

is at “LOW” status. The device is forced to switch

off as the voltage at that pin is lower than the

stipulated voltage.

Pin Assignment

Pin Descriptions

(Top View)

Pin Name

V_OUT

Function

Output Voltage

Input Supply

CE/SS

V_CC

GND

CE/SS

Ground

Chip Enable / Soft Start

Feedback pin

AP1604A

SV_CC

Signal Power for SON only

V_OUT

GND

V_CC

SOT23-5

SV_CC

V_OUT

V_CC

GND

SON-6

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.1.1 Jun. 27, 2005

1/7

12 3 4 5 6 7

中文翻译

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