Datasheet

SW1
VBST1
EN1
VFB2
VFB1
GND
VREG5
PGND1
0.1uF
VO1
.1.0uF
VBST2
EN2
SW2
VO2
0.1uF
VIN1
VIN2
5VREG
EN
Logic
EN Logic
UV1
OV1
Protection
Logic
Ref1
Ref 2
SS2
SS1
UV2
OV2
UV1
OV1
UV2
OV2
UVLO
UVLO
Fixed
SoftStart
REF
TSD
Ref1
Ref2
- 32
- 32
+20
+20
SS1
SS2
PGND1
PGND2
Err
Com
p
Err
Com
p
- 16%
+16%
PG1
- 16%
+16%
PG2
PG
Comp
PG
Comp
CH1 Min-off timer
CH2 Min-off timer
VIN1
VIN1
VIN2
PGND2
PGND2
SW2
Ref_OCL
OCP2 ZC2
SW2
PGND1
SW1
Ref_OCL
OCP1 ZC1
SW1
TPS54294
SLVSB00D –OCTOBER 2011–REVISED SEPTEMBER 2013 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
6 Submit Documentation Feedback Copyright © 2011–2013, Texas Instruments Incorporated
Product Folder Links: TPS54294