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LC-19A1E-BK/WH
5 – 26
2.15. IC704 (VHiMM3203B+-1Y)
2.15.1 Block Diagram
2.15.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
1
SW2
O
Switching pin for buck boost.
Please connect inductor and diode.
Please minimize trace area to reduce EMI.
Please connect inductor and diode.
Please minimize trace area to reduce EMI.
2
VIN
I
Input pin.
The capacitor is reguired to connect with input pin more than 10
The capacitor is reguired to connect with input pin more than 10
µF.
3
SW1
I
Switching pin for boost.
Please connect inductor and diode.
Please minimize trace area to reduce EMI.
Please connect inductor and diode.
Please minimize trace area to reduce EMI.
4
GND
-
Ground.
5
FB1
I
Feedback pin for boost.
Reference voltage is 2V.
Reference voltage is 2V.
6
VREF
I
Reference pin for buck boost.
The capacitor (1
The capacitor (1
µF/X5R) must be connected with vref pin.
7
FB2
I
Feedback pin for buck boost.
Reference voltage is 0.2V.
Reference voltage is 0.2V.
8
CNTRL
I
Control pin
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