TPS2148
TPS2158
SLVS373 – AUGUST 2001
electrical characteristics over recommended operating junction-temperature range,
2.9 V ≤ V
100°C (unless otherwise noted)
≤ 5.5 V, 2.9 V ≤ V
≤ 5.5 V, V
= 0 V, V
= 5 V, T = –40°C to
I(VIN/SWIN1)
I(SWIN2)
I(ENx)
I(LDO_EN) J
enable input, ENx (active low)
PARAMETER
TEST CONDITIONS
MIN
TYP
TYP
TYP
MAX
UNIT
V
V
V
High-level input voltage
Low-level input voltage
Input current, pullup (source)
2
IH
0.8
5
V
IL
I
I
V
V
V
= 0 V
µA
I(ENx)
enable input, ENx (active high)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
V
V
V
High-level input voltage
Low-level input voltage
Input current, pulldown (sink)
2
IH
0.8
5
V
IL
I
I
= 5 V
µA
I(ENx)
enable input, LDO_EN (active high)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
V
V
V
High-level input voltage
Low-level input voltage
2
IH
0.8
5
V
IL
I
I
Input current, pulldown
= 5 V
µA
µs
I(LDO_EN)
Falling-edge deglitch (see Note 1)
50
NOTE 1. Specified by design, not tested in production.
thermal shutdown characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
First thermal shutdown (shuts down switch or regulator
in overcurrent)
Occurs at or above specified temperature
when overcurrent is present.
120
110
155
Recovery from thermal shutdown
°C
Second thermal shutdown (shuts down all switches and Occurs on rising temperature, irrespective of
regulator)
overcurrent.
Second thermal shutdown hysteresis
10
6
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