AP3033 查看數據表（PDF） - BCD Semiconductor

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AP3033

BOOST CONTROLLER

BCD Semiconductor 

WHITE LED STEP-UP CONVERTER

Pin Configuration

KT Package

(TSOT-23-6)

Pin 1 Dot by Marking

SW 1

GND 2

FB 3

6 VIN

5 OV

4 CTRL

Preliminary Datasheet

AP3033

Figure 2. Pin Configuration of AP3033 (Top View)

Pin Description

Pin Number Pin Name

Function

1

SW Switch Pin. Connect external inductor and Schottky

2

GND Ground Pin

3

FB 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 0.45ms and then enable the IC, the

4

CTRL AP3033 will soft start to protect system departments. If logic low time is less than about

0.45ms and then enable the IC, the AP3033 will hold on standby mode and start directly to

achieve high frequency dimming

5

OV Over-voltage Protection Input Pin. Connect to the output directly or connect to the VOUT

through a resistor divider to set the OVP voltage. On OVP condition, the output voltage will

be clamped

6

VIN Input Supply Pin. Must be locally bypassed

Jan. 2010 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

2

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