Datasheet

TPS22921, TPS22922, TPS22922B
SLVS749B –NOVEMBER 2008–REVISED MAY 2013 www.ti.com
SWITCHING CHARACTERISTICS
V
IN
= 2.5 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 40 40 211
t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 μF 50 50 233 μs
C
L
= 3 μF 59 59 256
C
L
= 0.1 μF 41 10 10
t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 μF 316 56 56 μs
C
L
= 3 μF 1000 153 153
C
L
= 0.1 μF 23 23 164
t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 μF 29 29 165 μs
C
L
= 3 μF 38 38 177
C
L
= 0.1 μF 122 16 16
t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 μF 1086 147 147 μs
C
L
= 3 μF 3600 430 430
SWITCHING CHARACTERISTICS
V
IN
= 3 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 30 30 182
t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 1 μF 38 38 201 μs
C
L
= 3 μF 45 45 221
C
L
= 0.1 μF 40 10 10
t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 1 μF 353 51 51 μs
C
L
= 3 μF 1036 139 139
C
L
= 0.1 μF 20 20 149
t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 1 μF 25 25 150 μs
C
L
= 3 μF 33 33 161
C
L
= 0.1 μF 104 15 15
t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 1 μF 1030 143 143 μs
C
L
= 3 μF 3230 419 419
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