Datasheet
+
1
8
15 16 13
14
9
10
7
6
3
1211
+
+
–
–
–
4
I
peak
Current Limit
V
ref
OUTP
VAUX
VAUX
OVP
2
5
PGND
OUTP
OUTN
V
pos
V
neg
L1
OUTP
OUTP
FB
FBG
OUTN
OUTN
PGND
PGND
VIN
EN
GND
VAUX
OUTP
OUTN
Gate Drive
M1
M2
M3
M4
Gate
Drive
Bias (1.2V)
UVLO
Thermal
Shutdown
Current
Sense/
Soft Start
VAUX
Regulator
Voltage-
Controlled
Oscillator
VCO
PWM/PFM
Control
Out-of-Audio
Mode
20 kHz
Short-Circuit
Protection
L2L1 L2
TPS65135
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SLVS704A –NOVEMBER 2011–REVISED NOVEMBER 2011
FUNCTIONAL BLOCK DIAGRAM
Copyright © 2011, Texas Instruments Incorporated 3
Product Folder Links: TPS65135