AP3031AKTR 查看數據表（PDF） - BCD Semiconductor

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AP3031AKTR

WHITE LED STEP-UP CONVERTER

BCD Semiconductor 

WHITE LED STEP-UP CONVERTER

Pin Configuration

K Package

(SOT-23-6)

Pin 1 Dot by Marking

SW 1

GND 2

FB 3

6 VIN

5 OV

4 CTRL

Figure 2. Pin Configuration of AP3031A (Top View)

Data Sheet

AP3031A

Pin Description

Pin Number

1

2

3

4

5

6

Pin Name

SW

GND

FB

CTRL

OV

VIN

Function

Switch Pin. Connect external inductor and Schottky

Ground Pin

Voltage Feedback Pin. Reference voltage is 200mV

Enable and Dimming Control Pin. Connect to a high input to enable the IC or a low input to

disable the IC.

If logic low time is more than about 0.7ms and then enable the IC, the AP3031A will soft start

to protect system departments. If logic low time is less than about 0.7ms and then enable the

IC, the AP3031A will hold on standby mode and start directly to achieve high frequency dim-

ming

Over-voltage Protection Input Pin. Connect to the output directly. On OVP condition, the out-

put voltage will be clamped

Input Supply Pin. Must be locally bypassed

May 2009 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

2

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