Diodes AP3019A - Manual (Page 2)

Data Sheet
WHITE LED STEP-UP CONVERTER AP3019A
May. 2010 Rev. 1.8 BCD Semiconductor Manufacturing Limited
2
SW
GND
FB CTRL
V
OUT
V
IN
1
2
3 4
5
Pin 1 Dot by Marking
6
Pin Configuration
K/KT Package
(SOT-23-6/TSOT-23-6)
Figure 2. Pin Configuration of AP3019A (Top View)
Pin Description
Pin Number Pin Name Function
1 SW Switch pin. Connect external inductor
2 GND Ground
3 FB Voltage feedback pin. Reference voltage is 200mV
4 CTRL
Shutdown and dimming pin. Connect to 1.8V or higher to enable
device; Connect to 0.5V or less to disable device; Connect to a PWM
signal to achieve LEDs brightness dimming
5 V
OUT
Output pin. Connect to the cathode of internal Schottky diode
6 V
IN
Input supply pin. Must be connected to a local bypass capacitor