TPS2148

TPS2158

SLVS373 – AUGUST 2001

4

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electrical characteristics over recommended operating junction-temperature range,

2.9 V

timing parameters, power switches

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

t

Turnon time OUTx switch (see Note 1)

CL = 100 µF

RL =33 Ω

0.5

6

ton

Turnon time, OUTx switch, (see Note 1)

CL = 1 µF

RL = 33 Ω

0.1

3

t ff

Turnoff time OUTx switch (see Note 1)

CL = 100 µF

RL =33 Ω

5.5

10

ms

toff

Turnoff time, OUTx switch (see Note 1)

CL = 1 µF

RL = 33 Ω

0.05

2

ms

t

Rise time OUTx switch (see Note 1)

CL = 100 µF

RL =33 Ω

0.5

5

tr

Rise time, OUTx switch (see Note 1)

CL = 1 µF

RL = 33 Ω

0.1

2

tf

Fall time OUTx switch (see Note 1)

CL = 100 µF

RL =33 Ω

5.5

9

tf

Fall time, OUTx switch (see Note 1)

CL = 1 µF

RL = 33 Ω

0.05

1.2

NOTE 1. Specified by design, not tested in production.

undervoltage lockout at VIN/SWIN1

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

UVLO Threshold

2.2

2.85

V

Hysteresis (see Note 1)

260

mV

Deglitch (see Note 1)

50

µs

NOTE 1. Specified by design, not tested in production.

undervoltage lockout at switch 2

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

UVLO Threshold

2.2

2.85

V

Hysteresis (see Note 1)

260

mV

Deglitch (see Note 1)

50

µs

NOTE 1. Specified by design, not tested in production.