TPS61040_07 Datasheet, PDF (15/22 Pages) Texas Instruments – LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES

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V_IN = 2.7 V to 5 V
C1
4.7 µF
L1
6.8 µH
C3
1 µF
D1
TPS61040
V_IN SW
FB
R1
1.5 MW
EN GND
R2
210 kW
TPS61040
TPS61041
SLVS413C – OCTOBER 2002 – REVISED AUGUST 2007
D3
D2
V2 = -10 V/15 mA
C4
4.7 µF
C_FF
22 pF
V1 = 10 V/15 mA
C2
1 µF
L1:
Murata LQH4C6R8M04
D1, D2, D3: Motorola MBR0530
C1:
Tayo Yuden JMK212BY475MG
C2, C3, C4: Tayo Yuden EMK316BJ105KF
Figure 19. Positive and Negative Output LCD Bias Supply
V_IN 3.3 V
C1
10 µF
L1
6.8 µH
TPS61040
V_IN SW
FB
EN GND
D1
R1
1.8 MW
C_FF
4.7 pF
V_{O =} 12 V/35 mA
C2
4.7 µF
R2
205 kW
L1:
Murata LQH4C6R8M04
D1:
Motorola MBR0530
C1:
Tayo Yuden JMK212BJ106MG
C2:
Tayo Yuden EMK316BJ475ML
Figure 20. Standard 3.3-V to 12-V Supply
1.8 V to 4 V
C1
4.7 µF
3.3 µH
TPS61040
V_IN SW
FB
EN GND
D1
R1
620 kW
R2
200 kW
C_FF
3.3 pF
5 V/45 mA
C2
4.7 µF
L1:
Murata LQH4C3R3M04
D1:
Motorola MBR0530
C1, C2: Tayo Yuden JMK212BY475MG
Figure 21. Dual Battery Cell to 5-V/50-mA Conversion
Efficiency Approx. Equals 84% at V_IN = 2.4 V to Vo = 5 V/45 mA
Copyright © 2002–2007, Texas Instruments Incorporated
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