世微AP8232DC-DC同步升压芯片升压恒压IC升压20V电流2A

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世微AP8232DC-DC同步升压芯片升压恒压IC升压20V电流2A

Description：

The AP8232 series is a CMOS step-up

switching regulator which mainly consists of a

reference voltage source, an oscillation circuit,

an error amplifier, a phase compensation circuit,

a PWM/PFM switching control circuit. With an

external low-ON-resistance Nch Power MOS,

this product is applicable to applications

requiring high efficiency and high output current.

The AP8232 series switches its operation to the

PFM control circuit whose duty ratio is 15 % with

to the PWM/PFM switching control circuit under

a light load and to prevent decline in the

efficiency by IC operation current.

Feature：

Low voltage operation: Start-up is guaranteed from

0.9 V(IOUT =1 mA )

Duty ratio: Built-in PWM/PFM switching control

circuit 15 to 78 % .

oscillator frequency：300KHz

External parts: coil, diode, capacitor, and transistor

Output voltage range: 1.5V ~6.5 V

Output voltage accuracy：±2%

Soft start function: 2 ms.

PACKAGE：SOT-23-5

Typical Application:

Mobile phones (PDC, GSM, CDMA, IMT200 etc.)

Bluetooth equipment

PDA

Portable communication modem

Portable games

Cameras

Digital cameras

Cordless phones

Notebook computers


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