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ELECTRICAL CHARACTERISTICS

TPS2049

SLVS713 – OCTOBER 2006

over recommended operating junction temperature range, V

PARAMETER

MIN

TYP MAX

UNIT

POWER SWITCH

Static drain-source

on-state resistance, 5-V

–40

°C < T

400

650

m

Ω

operation and 2.7-V

operation

Rise time, output

0.1

0.4

ms

Fall time, output

0.03

0.3

ms

ENABLE INPUT EN

High-level input voltage

2.7 V

≤ V

2

V

Low-level input voltage

2.7 V

≤ V

0.8

V

Input current

–0.5

0.5

µA

Turnon time

1

ms

Turnoff time

1

ms

CURRENT LIMIT

Short-circuit output

100

150

200

mA

current

short-circuit, 10

°C < T

Overcurrent trip threshold

10

°C < T

325

mA

Short-circuit response

2

µs

tme

SUPPLY CURRENT

0.5

1

Supply current, low-level output

No load on OUT

µA

–40°C

≤ T

0.5

5

43

60

Supply current, high-level output

No load on OUT

µA

–40°C

≤ T

43

70

OUT connected to

Leakage current

–40°C

≤ T

1

µA

ground

Reverse leakage current

IN = ground

0

µA

UNDERVOLTAGE LOCKOUT

IN

Low-level input voltage

2

2.5

V

IN

Hysteresis

75

mV

OVERCURRENT OC

0.4

V

Off-state current

1

µA

OC deglitch

OC assertion or deassertion

4

8

15

ms

Thermal shutdown threshold

135

°C

Recovery from thermal shutdown

125

°C

Hysteresis

10

°C

(1)

Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account

separately.

(2)

The thermal shutdown only reacts under overcurrent conditions.

3

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