AP3012 Ver la hoja de datos (PDF) - BCD Semiconductor

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AP3012

1.5MHz STEP-UP DC-DC CONVERTER

BCD Semiconductor 

1.5MHz STEP-UP DC-DC CONVERTER

Pin Configuration

K Package

(SOT-23-5)

SW 1

GND 2

FB 3

5 VIN

4 SHDN

Figure 2. Pin Configuration of AP3012 (Top View)

Data Sheet

AP3012

Pin Description

Pin Number Pin Name

Function

Switch Pin. Connect inductor/diode here. The output voltage can go up to 29V but should not

1

SW

exceed this limit. If the voltage on this pin is higher than the overvoltage protection (OVP)

threshold, the device can go into shutdown mode. It can be restarted by a low to high pulse on

the SHDN pin, or by a power on reset on the VIN supply

2

GND Ground Pin. Connect directly to local ground plane

3

FB

Feedback Pin. Internally compares to 1.25V. Connect R1 and R2 resistor divider here. Calcu-

late the Output Voltage according to the formula: VOUT=1.25V * (1+R1/R2)

Shutdown Pin. Connect to 1.5V or higher to enable device (ON), 0.4V or lower to disable

4

SHDN device (OFF)

5

VIN

Input Supply Pin. Must be locally bypassed

Oct. 2009 Rev. 1. 5

BCD Semiconductor Manufacturing Limited

2

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