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Electrical Characteristics (Continue)

These specifications apply over VCNTL=5V, VIN=1.8V, VOUT=1.2V, and TA=-40 to 85ºC, unless otherwise specified.

Typical values are at TJ=25ºC.

Symbol

Parameters

Condition

Min

Typ

Max

Units

VDROP

Dropout Voltage

IOUT=3A

-

210

350

mV

IQ

Quiescent Current

VDD=5.5V

-

0.6

1.2

mA

ILIM

Current Limit

-

3.2

4.5

-

A

ISHORT

Short Current

VOUT<0.2V

0.5

1.8

-

A

VOUT Pull-Low Resistance

VEN=0V

-

150

-

Ω

Enable

IEN

EN Input Bias Current

VEN=0V

-

12

-

uA

ISHDN

VDD Shutdown Current

-

-

-

1.0

uA

VENL

Logic-Low Voltage

-

-

0.2

VENH

Enable Threshold

Logic-High Voltage

1.2

-

-

V

Power Good

VPOKTH

PGOOD Rising Threshold

-

-

90

93

%

PGOOD Hysteresis

-

3

10

-

%

POK Sink Capability

IPGOOD=10mA

-

0.2

0.4

V

POK Delay

-

0.5

1.5

5

ms

Thermal Protection

TSD

Thermal Shutdown

Temperature

-

-

160

-

ºC

Δ

TSD

Thermal Shutdown

Hysteresis

-

-

30

-

ºC

Thermal Shutdown

Temperature Fold-back

VOUT<0.4V

-

110

-

ºC

Typical Application Circuit