TPPM0125

150mA LOW DROPOUT REGULATOR WITH POK

SLVS388 − JULY 2001

4

POST OFFICE BOX 655303

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Output voltage

IO = 25 mA

1.2

V

VO

Output voltage accuracy

IO = 0

−1%

1%

VO

Output voltage accuracy

IO = 50 mA, TA = 0°C to 70°C (see Note 4)

−2%

2%

IQ

Quiescent supply current

V(EN) ≤ 0.8 V

1

µA

I(GND)

Ground terminal current (see Note 5)

IO = 0

150

A

I(GND)

Ground terminal current (see Note 5)

IO = 150 mA

150

µA

IL

Output load current

150

mA

I(Limit)

Output current limit

VO = 0

160

300

mA

∆V(LNR)

Line regulation

VI = 3 V to 5.25 V

10

mV

∆V(LDR)

Load regulation

IO = 0.1 mA to150 mA, See Note 6

2%

3%

VI − VO

Dropout voltage

IO = 100 µA

1

V

VI − VO

Dropout voltage

IO = 150 mA

1

V

CL

Load capacitance

ESR and capacitance tradeoffs

1

µF

I(REV)

Reverse output current on VI

VI = GND, VO = regulated voltage

50

µA

NOTES:

4. Assured by design, not tested in production.

5. Ground terminal current is the regulator quiescent current drawn from the supply to support the load current.

6. Regulation is measured at constant junction temperature using low duty cycle pulse testing. Devices are tested for load regulation

in the load range from 0.1 mA to 150 mA.

enable input

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VIL

Regulated shutdown

VI = 3 V to 5.25 V regulated shutdown

0.8

V

VIH

Regulated enabled

VI = 3 V to 5.25 V regulated enabled

2

V

I(EN)

Enable input current

Shutdown, VIL ≤ 0.8 V

0.01

A

I(EN)

Enable input current

Enabled, VIH ≥ 2 V

0.01

µA

Resistance discharge

V(EN) ≤ 0.8 V

500

Ω

thermal protection (see Note 4)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

T(SD)

Thermal shutdown

165

°C

T(SDHYS)

Hysteresis

15

°C

NOTE 4: Assured by design, not tested in production.

power okay (see Note 7)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

V(POKLO)

Low threshold

Output falls % of VO (power NOT okay)

85%

V(POKTH)

High threshold

Output reaches % of VO, starts delay timer (power okay)

90%

VOL

VO out of regulation

Fault condition, IOL = 100 µA

0.4

V

Ilkg

Leakage current

VI = 5 V

1

µA

NOTE 7: Power okay is a function of the output voltage being 5% lower than the specified range. The function is a detection of one of the following:

over current, over temperature, or dropout.