LF120C View Datasheet(PDF) - STMicroelectronics

Part Name

Description

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LF120C

Very low drop voltage regulators with inhibit

STMicroelectronics 

Electrical characteristics

LFxxAB - LFxxC

Table 10.

Symbol

Electrical characteristics for LF25ABDT-TRY (Automotive Grade) (refer to the test

circuits, TA = -40 to 125°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified.)

Parameter

Test conditions

Min. Typ. Max. Unit

VO Output voltage

IO = 50 mA, VI = 4.5 V, Ta = 25°C

IO = 50 mA, VI = 4.5 V

2.475 2.5 2.525

V

2.435

2.565

VI Operating input voltage IO = 500 mA

16

V

IO Output current limit

Ta = 25°C

1

A

ΔVO Line regulation

VI = 3.5 to 16 V, IO = 5 mA

2

15 mV

ΔVO Load regulation

VI = 3.8 V, IO = 5 to 500 mA

2

15 mV

Id Quiescent current

VI = 3.5 to 16V, IO = 0mA

ON MODE

VI = 3.8 to 16V, IO=500mA

0.5

2

mA

12

VI = 6 V

OFF MODE

50 120 µA

f = 120 Hz

82

SVR Supply voltage rejection

IO = 5 mA, VI = 4.5 ± 1 V

Ta = 25°C

f = 1 kHz

77

dB

f = 10 kHz

65

eN Output noise voltage

Vd Dropout voltage

VIL Control input logic low

VIH Control input logic high

II Control input current

CO

Output bypass

capacitance

B = 10 Hz to 100 kHz, Ta = 25°C

IO = 200 mA

IO = 500 mA

VI = 6 V, VC = 6 V, Ta = 25°C

ESR = 0.1 to 10 Ω, IO = 0 to 500 mA

50

µV

0.2 1.3

V

0.4 1.3

0.8

V

2

V

10

µA

2

10

µF

14/49

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