SW
C1
10
µ
F
L1
6.8
µ
H
R1
R2
VBAT
VOUT
R5
C2
2.2
µ
F
C3
100
µ
F
LBO
PGND
LBI
SYNC
EN
GND
TPS61092
List of Components:
U1 = TPS6109xRSA
L1 = Sumida CDRH103R-6R8
C1, C2, C5, C6 = X7R,X5R Ceramic
C3 = Low ESR Tantalum
DS1 = BAT54S
LBO
C5
0.1
µ
F
DS1
C6
1
µ
F
V
CC2
-5 V
Unregulated
Auxiliary Output
Battery
Input
FB
V
CC1
5 V
Boost Main Output
TPS61090, TPS61091, TPS61092
SLVS484C – JUNE 2003 – REVISED DECEMBER 2014
www.ti.com
10.2.4 TPS6109x Application Schematic of 5 V
out
and Auxiliary -5 V
out
With Charge Pump
Figure 22. Power Supply Solution With Auxiliary Negative Output Voltage Schematic
18
Submit Documentation Feedback
Copyright © 2003–2014, Texas Instruments Incorporated
Product Folder Links:
TPS61090 TPS61091 TPS61092
