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A7801中文資料創(chuàng)瑞科技數(shù)據(jù)手冊PDF規(guī)格書

A7801
廠商型號

A7801

功能描述

DC-DC CONVERTER LOW NOISE, REGULATED CHARGE PUMP

文件大小

399.27 Kbytes

頁面數(shù)量

10

生產(chǎn)廠商 AiT Semiconductor Inc.
企業(yè)簡稱

AITSEMI創(chuàng)瑞科技

中文名稱

AiT創(chuàng)瑞科技官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時間

2024-12-24 9:07:00

A7801規(guī)格書詳情

DESCRIPTION

The A7801 is a low noise, constant frequency (400kHz) switched capacitor voltage doubler. It produce a regulated output voltage from a 2.5V to 5.5V input with up to 250mA of output current. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the A7801 ideally suited for small, battery-powered applications.

A new charge-pump architecture maintains constant switching frequency to zero load and reduces both output and input ripple. The A7801 have thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush current during start-up.

High switching frequency enables the use of small ceramic capacitors. A low current shutdown feature disconnects the load from VIN and reduces quiescent current to <1uA.

The A7801 is available in SOT-26 package.

FEATURES

? Fixed 5V ± 4 Output

? VIN Range: 2.5V to 5.5V

? Output Current: Up to 250mA

? Constant Frequency Operation at All Loads

? Low Noise Constant Frequency (400kHz) Operation

? Automatic Soft-Start Reduces Inrush Current

? Shutdown Current <1uA

? Short-Circuit Protection

? No Inductors

? Available in SOT-26 Package

APPLICATION

? White LED Backlighting

? Li-Ion Battery Backup Supplies

? Local 3V to 5V Conversion

? Smart Card Readers

? PCMCIA Local 5V Supplies

產(chǎn)品屬性

  • 型號:

    A7801

  • 制造商:

    UNICORP

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價格
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