LD39080PT18-R datasheet(8/20 Pages) STMICROELECTRONICS

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Electrical characteristics

LD39080

8/20

Electrical characteristics

Table 4.

Electrical characteristics

(TJ = 25°C, VI = VO+1V, CI = 1µF, CO = 2.2µF, ILOAD = 10mA, VINH = 2V, unless otherwise

specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Operating input voltage

2.5

Output voltage tolerance

VI = VO+1V, ILOAD = 10mA to 0.8A

-1.5

1.5

% of

VO(NOM)

VI = VO+1V to 6V,

ILOAD = 10mA to 0.8A

TJ = -40 to 125°C

-3

VREF

Reference voltage

1.22

∆VO

Output voltage LINE

regulation

VI = VO+1V to 6V

0.04

VI = VO+1V to 6V, TJ = -40 to 125°C

0.1

0.2

∆VO/∆ILOAD

Output voltage LOAD

regulation

ILOAD = 10mA to 0.8A

0.06

%/A

ILOAD = 10mA to 0.8A,

TJ = -40 to 125°C

0.2

0.4

VDROP

Dropout voltage (VI - VO)

ILOAD = 150mA, TJ=-40 to 125°C

ILOAD = 0.8A, TJ = -40 to 125°C

150

300

Quiescent current:

ON MODE

ILOAD = 10mA to 0.8A, VINH = 2V

TJ = -40 to 125°C

12.5

Quiescent current:

OFF MODE

VINH = 0.3V

µA

VINH = 0.3V, TJ = -40 to 125°C

Short Circuit Protection

ISC

Short circuit protection

RL = 0

1.6

Inhibit Input

VINH

Inhibit threshold LOW

VI = 2.5 to 6V OFF

TJ = -40 to 125°C

0.3

Inhibit threshold HIGH

TD-OFF

Current limit

ILOAD = 0.8A, VO = 3.3V

µs

TD-ON

Current limit

ILOAD = 0.8A, VO = 3.3V

IINH

Inhibit input current (1)

Guaranteed by design

VI = 6V, VINH = 0 to 6V

±0.1

±1µA

AC Parameters

SVR

Supply voltage rejection

VI = 4.5 ± 1V,

VO = 3.3V,

ILOAD = 10mA,

f = 120Hz

f = 1kHz

Output noise voltage

BW = 10Hz to 100kHz,

CO = 2.2µF, VO = 2.5V

100

µVRMS

TSHDN

Thermal shutdown OFF

170

°C

Hysteresis

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