Datasheet

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TPS51200
SLUS812 – FEBRUARY 2008
ELECTRICAL CHARACTERISTICS (continued)
Over recommended free-air temperature range, V
VIN
= 3.3 V,V
VLDOIN
= 1.8 V, V
REFIN
= 0.9 V, V
VOSNS
= 0.9 V, V
EN
= V
VIN
, C
OUT
= 3 × 10 µ F and circuit shown in Section 1 . (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
UVLO / EN LOGIC THRESHOLD
Wake up, T
A
= 25 ° C 2.2 2.3 2.375 V
V
VINUVVIN
UVLO threshold
Hysteresis 50 mV
V
ENIH
High-level input voltage Enable 1.7
V
ENIL
Low-level input voltage Enable 0.3 V
V
ENYST
Hysteresis voltage Enable 0.5
I
ENLEAK
Logic input leakage current EN, T
A
= 25 ° C – 1 1 µ A
THERMAL SHUTDOWN
Shutdown temperature 150
T
SON
Thermal shutdown threshold
(2)
° C
Hysteresis 25
(2) Ensured by design. Not production tested.
4 Copyright © 2008, Texas Instruments Incorporated
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