V
IN
SW
FB
EN
GND
L1
10 μH
D1
R1
2.2 MΩ
R2
160 kΩ
C
FF
22 pF
C2
1 μF
V
OUT
18 V / 10 mA
V
IN
1.8 V to 6 V
C1
4.7 μF
R3
200 k
BC857C
C3
0.1 μF
(Optional)
L1: Sumida CR32-100
D1: Motorola MBR0530
C1: Tayo Yuden JMK212BY475MG
C2: Tayo Yuden TMK316BJ105KL
TPS61040
Copyright © 2016, Texas Instruments Incorporated
V
IN
SW
FB
EN
GND
L1
10 μH
D1
R1
2.2 MΩ
R2
160 kΩ
C
FF
22 pF
C2
1 μF
V
O
18 V
V
IN
1.8 V to 6 V
C1
4.7 μF
DAC or Analog Voltage
0 V = 25 V
1.233 V = 18 V
TPS61040
L1: Sumida CR32-100
D1: Motorola MBR0530
C1: Tayo Yuden JMK212BY475MG
C2: Tayo Yuden GMK316BJ105KL
Copyright © 2016, Texas Instruments Incorporated
16
TPS61040, TPS61041
SLVS413I – OCTOBER 2002 – REVISED DECEMBER 2016
www.ti.com
Product Folder Links:
TPS61040 TPS61041
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Copyright © 2002–2016, Texas Instruments Incorporated
8.3 System Examples
Figure 16. LCD Bias Supply With Adjustable Output Voltage
Figure 17. LCD Bias Supply With Load Disconnect
