LDL112PV12R datasheet(8/32 Pages) STMICROELECTRONICS

Part #	LDL112PV12R

Description	1.2 A low quiescent current LDO with reverse current protection

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Electrical characteristics

LDL112

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DocID026319 Rev 2

TJ = 25 °C, VIN = 2.1 V, CIN = COUT = 1 µF, IOUT = 5 mA, VEN = VIN, unless otherwise

specified.

Table 5: LDL112 electrical characteristics (adjustable version)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIN

Operating input

voltage

1.6

5.5

V

VADJ

VADJ accuracy

IOUT = 5 mA, TJ = 25 °C

784

800

816

mV

IOUT = 5 mA, -40 °C < TJ < 125 °C

-3.0

3.0

%

ΔVOUT

Static line regulation

(1)

2.1 V (2)

≤ VIN ≤ 5.5 V,

IOUT = 1 mA

0.05

0.1

%/V

ΔVOUT

Static load regulation

IOUT = 0 mA to 1.2 A,VIN > 2.1 V

6

20

mV

VDROP

Dropout voltage (3)

IOUT = 1 A, VOUT = 3.3 V

300

mV

IOUT = 1.2 A,VOUT = 3.3 V

40 °C < TJ < 125 °C

350

600

eN

Output noise voltage

10 Hz to 100 kHz, IOUT = 10 mA

60

µVRMS

IADJ

Adjust pin current

0.130

1

µA

SVR

Supply voltage

rejection

VIN = VOUTNOM + 0.5 V (2) +/-

VRIPPLE VRIPPLE = 0.2 V

frequency = 1 kHz IOUT = 10 mA

53

dB

IQ

Quiescent current

IOUT = 0 mA,-40 °C < TJ < 125 °C

35

70

µA

IOUT = 1.2 A,

2.1 V < VIN < 5.5 V,

-40 °C < TJ < 125 °C

240

400

VIN input current in off mode:

VEN = GND

0.1

1

ISC

Short-circuit current

RL = 0, VIN > 2.1 V

1.4

2

A

VEN

Enable input logic

low

VIN = 2 V (2) to 5.5 V,

-40 °C < TJ < 125 °C

0

0.35

V

Enable input logic

high

VIN = 2 V (2) to 5.5 V,

-40 °C < TJ < 125 °C

1.4

IEN

Enable pin input

current

VEN = VIN

100

nA

TSHDN

Thermal shutdown

165

°C

Hysteresis

20

COUT

Output capacitor

Capacitance

(see Section 7: "Typical

performance characteristics")

1

10

µF

Notes:

(1)Not applicable for Vout(nom) > 4.5 V.

(2)For VOUT lower than or equal to 1 V, VIN = 2.1 V.

(3)Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal

value.

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