Datasheet

TPS22921, TPS22922, TPS22922B
www.ti.com SLVS749B –NOVEMBER 2008–REVISED MAY 2013
SWITCHING CHARACTERISTICS
V
IN
= 1.2 V, T
A
= 25°C (unless otherwise noted)
TPS22921 TPS22922 TPS22922B
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 μF 83 83 435
t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 μF 103 103 485 μs
C
L
= 3 μF 122 122 536
C
L
= 0.1 μF 44 17 17
t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 μF 312 117 117 μs
C
L
= 3 μF 1000 319 319
C
L
= 0.1 μF 41 41 301
t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 μF 54 54 302 μs
C
L
= 3 μF 67 67 325
C
L
= 0.1 μF 123 25 25
t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 μF 1000 214 214 μs
C
L
= 3 μF 3400 632 632
SWITCHING CHARACTERISTICS
V
IN
= 1.8 V, T
A
= 25°C (unless otherwise noted)
TPS22921 TPS22922 TPS22922B
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX
C
L
= 0.1 μF 54 54 282
t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 μF 67 67 314 μs
C
L
= 3 μF 78 78 344
C
L
= 0.1 μF 41 10 10
t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 μF 312 67 67 μs
C
L
= 3 μF 1000 181 181
C
L
= 0.1 μF 30 30 200
t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 μF 37 37 202 μs
C
L
= 3 μF 47 47 219
C
L
= 0.1 μF 121 17 17
t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 μF 1000 158 158 μs
C
L
= 3 μF 3450 461 461
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