ELECTRICAL CHARACTERISTICS

TPS650250

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VLDO1 and VLDO2 Low Dropout Regulators

Operating quiescent current

Current per LDO into VINLDO

16

30

µA

Shutdown current

Total current into VINLDO, VLDO = 0V

0.6

2

µA

Input voltage range for LDO1, LDO2

1.5

6.5

V

LDO1 output voltage range

1

3.3

V

LDO2 output voltage range

1

3.3

V

VFB

LDO1 and LDO2 feedback voltage

1.0

V

Maximum output current for LDO1, LDO2

200

mA

Maximum output current for LDO1, LDO2

120

mA

LDO1 and LDO2 short circuit current limit

400

mA

Minimum voltage drop at LDO1, LDO2

120

mV

Minimum voltage drop at LDO1, LDO2

65

150

mV

Minimum voltage drop at LDO1, LDO2

300

mV

Output voltage accuracy for LDO1, LDO2

–2%

1%

Line regulation for LDO1, LDO2

–1%

1%

Load regulation for LDO1, LDO2

–1%

1%

Regulation time for LDO1, LDO2

Load change from 10% to 90%

10

µs

Vdd_alive Low Dropout Regulator

Vdd_alive

Vdd_alive LDO output voltage, TPS6502500 to

1.0

V

TPS6502504

Output current for Vdd_alive

30

mA

Vdd_alive short circuit current limit

Vdd_alive = GND

100

mA

Output voltage accuracy for Vdd_alive

–1%

1 %

Line regulation for Vdd_alive

–1%

1 %

Regulation time for Vdd_alive

Load change from 10% to 90%

10

µs

AnaLogic Signals DEFDCDC1, DEFDCDC2, DEFDCDC3

High level input voltage

1.3

VCC

V

Low level input voltage

0

0.1

V

Input bias current

0.001

0.05

µA

THERMAL SHUTDOWN

Thermal shutdown

Increasing junction temperature

160

°C

Thermal shudown hysteresis

Decreasing junction temperature

20

°C

INTERNAL UNDER VOLTAGE LOCK OUT

UVLO

Internal UVLO

VCC falling

–3%

2.35

3%

V

internal UVLO comparator hysteresis

120

mV

VOLTAGE DETECTOR COMPARATOR

PWRFAIL_SNS

Comparator threshold

Falling threshold

–2%

1.0

2%

V

Hysteresis

40

50

60

mV

Propagation delay

25mV overdrive

10

µs

Power fail output low voltage

0.3

V

(1)

If the feedback voltage is forced higher than above 1.2V, a leakage current into the feedback pin may occur.

8

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