Datasheet

Error
Amplifier
R Q
S
Boot
Charge
Boot
UVLO
Current
Sense
Oscillator
Frequency
Shift
Gate
Drive
Logic
Slope
Compensation
PWM
Latch
PWM
Comparator
ECO-MODE
Minimum Clamp
™
Maximum
Clamp
Voltage
Reference
Discharge
Logic
VSENSE
COMP
PH
BOOT
VIN
GND
Thermal
Shutdown
EN
Enable
Comparator
Shutdown
Logic
Shutdown
Enable
Threshold
S
1.25 V
0.8 V
80 mW
165C
2.1 V
12 A/V
SS
Shutdown
VSENSE
1 Am
3 Am
gm = 92 A/V
DC gain = 800 V/V
BW = 2.7 MHz
m
2 kW
2 Am
TPS54331D
TPS54331
www.ti.com SLVS839D –JULY 2008– REVISED JANUARY 2012
FUNCTIONAL BLOCK DIAGRAM
SPACER
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