LF33CPT datasheet(23/34 Pages) STMICROELECTRONICS

Part #	LF33CPT

Description	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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LF00 SERIES

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ELECTRICAL CHARACTERISTICS FOR LF120C (refer to the test circuits, Tj =25°C, CI =0.1 µF,

CO =2.2 µF unless otherwise specified.)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VO

Output Voltage

IO = 50 mA, VI = 14 V

11.76

12

12.24

V

IO = 50 mA, VI =14 V,Ta = -25 to 85°C

11.52

12.48

VI

Operating Input Voltage

IO = 500 mA

16

V

IO

Output Current Limit

1

A

∆V

O

Line Regulation

VI =13 to16 V,

IO = 5 mA

12

60

mV

∆V

O

Load Regulation

VI = 13.3 V,

IO = 5 to 500 mA

12

60

mV

Id

Quiescent Current

VI =13 to16V, IO = 0mA

ON MODE

0.7

1.5

mA

VI = 13.3 to 16V,IO = 500mA

12

VI = 13 V

OFF MODE

70

140

µA

SVR

Supply Voltage Rejection

IO =5mA

VI =14 ± 1V

f = 120 Hz

69

dB

f= 1KHz

64

f = 10 KHz

54

eN

Output Noise Voltage

B = 10 Hz to 100 KHz

50

µV

Vd

Dropout Voltage

IO = 200 mA

0.2

0.35

V

IO = 500 mA

0.4

0.7

VIL

Control Input Logic Low

Ta = -40 to 125°C

0.8

V

VIH

Control Input Logic High

Ta = -40 to 125°C

2

V

II

Control Input Current

VI =13 V,

VC =6V

10

µA

CO

Output Bypass Capacitance ESR = 0.1 to 10

Ω

IO =0 to 500mA

2

10

µF

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