Datasheet

SW
MOSFET Driver
Anti Shoot Through
Converter Control
Logic
High Side
Current
Sense
Vref
0.8V
Comparator
Error Amplifier
PVIN
AVIN
PGND
AGND
FREQ
EN
EN
M1
M2
VOS
SW
FB
Direct Control
and
Compensation
ramp
Timer
ton
PGND
DCS - Control™
Charge Pump
for
Gate driver
CP CN
SS
I
ss
Voltage clamp
Vref
÷1.56
PVIN
Hiccup
current limit
#32 counter
Output voltage
discharge
logic
200Ω
M3
VREF
PG
VFB
Bandgap
Undervoltage
Lockout
Thermal shutdown
400kΩ
Adjustable
only
Vin
400kΩ
400kΩ
High =1.4 MHz
Low = 2.8 MHz
R1
(1)
R2
(1)
R3
(1)
TPS62090, TPS62091
TPS62092, TPS62093
www.ti.com SLVSAW2A –MARCH 2012–REVISED MARCH 2012
FUNCTIONAL BLOCK DIAGRAM
(1) R1, R2, R3 are implemented in the fixed output voltage version only.
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