Datasheet

FUNCTIONAL BLOCK DIAGRAM
SW
MOSFETDriver
AntiShootThrough
ConverterControl
Logic
HighSide
Current
Sense
LowSide
Current
Sense
V
ref
0.6V
V
ref
0.6V
1.5MHz
SawTooth
Summing
Comparator
FB
Loop
Compensation
Error Amplifier
PFM
Comparator
Analog
Softstart
PLL
MODE PVIN
Bandgap
Undervoltage
Lockout
ThermalShutdown
AVIN
PGND
AGND
0.6V
PG
OVT
EN
EN
OutputVoltage
Tracking
R1
R2
(SeeNote A)
V
ref
-2%
PFM/PWM
Transition
Q1
Q2
Q3
Q4
R3
R4
VOUT
Generator
0.6V
V
ref
0.6V
TPS62510
www.ti.com ................................................................................................................................................................ SLVS651A – MAY 2006 – REVISED JULY 2009
A. R1 and R2 are only used for the fixed output voltage version.
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