Datasheet

SW1
VBST1
EN1
VFB2
VFB1
GND
SS2
VREG5
PGND1
0. 1uF
VO
1
1. 0 uF
VIN1
VBST2
EN2
SW2
VO2
0.1uF
VIN1
VIN2
5VREG
EN
Logic
PGND2
SW2
EN Logic
UV1
Protection
Logic
Ref1
Ref2
SS2
SS1
UV2
UV1
UV2
UVLO
UVLO
SoftStart
REF
TSD
Ref1
Ref2
- 32
- 32
SS1
SS1
SS2
CSS1
CSS2
PGND1
PGND2
Err
Comp
Err
Comp
CH1 Min- off timer
CH2 Min- off timer
Ref_OCL
PGND2
UV
UV
VIN1
VIN2
OCP2 ZC2
SW2
SW1
Ref_OCL
OCP1 ZC1
SW1
PGND1
TPS542951
SLVSBI4B JULY 2012REVISED OCTOBER 2013
www.ti.com
FUNCTIONAL BLOCK DIAGRAM
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Product Folder Links: TPS542951