Datasheet

Boot
UVLO
Boot
Charge
R Q
S
Shutdown
Logic
Thermal
Shutdown
Gate
Drive
Logic
Frequency
Shift
Oscillator
Slope
Compensation
Minimum Clamp
Voltage
Reference
Maximum
Clamp
Σ
VSENSE
Shutdown
165C
PWM
Comparator
gm
0.8V
9A/V
Current
Sense
PWM
Latch
2.1V
GND
LX
BOOT
VIN
VSENSE
ROSC
COMP
Discharge
Logic
SS
Shutdown
2uA
TPS5402
SS
ROSC
BOOT
VIN
COMP
LX
3
4
1
2
Cin
Cboot
GND
VSENSE
6
5
8
7
Vout
Cout
Lo
CcRc
Rosc
D
Rfb1
Rfb2
Vin
Css
TPS5402
SLVSBK4 –SEPTEMBER 2012 www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
TYPICAL APPLICATION
FUNCTIONAL BLOCK DIAGRAM
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