Product Summary

The L78L12ACU is a three-terminal positive regulator employing internal current limiting and thermal shutdown, making them essentially indestructible. If adequate heat-sink is provided, they can deliver up to 100mA output current. The L78L12ACU is intended as fixed voltage regulator in a wide range of applications including local or oncard regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, the L78L12ACU can be used with power pass elements to make high-current voltage regulators. The L78L12ACU used as Zener diode/resistor combination replacement, offers an effective output impedance improvement.

Parametrics

L78L12ACU absolute maximum ratings: (1)Output voltage, TJ = 25 ℃, VO: 3.036 to 3.564V; (2)Output voltage, IO = 1 to 40mA, VI=5.3 to 20V, VO: 2.97 to 3.63V; (3)Output voltage, IO = 1 to 70mA, VI=8.3V, VO: 2.97 to 3.63V; (4)Line regulation, VI = 5.3 to 20V, TJ = 25℃, ΔVO: 150mV; (5)Line regulation, VI = 6.3 to 20V, TJ = 25℃, ΔVO: 100mV; (6)Load regulation, IO = 1 to 100mA, TJ = 25℃, ΔVO: 60mV; (7)Load regulation, IO = 1 to 40mA, TJ = 25℃, ΔVO: 30mV; (8)Quiescent current, TJ = 25℃, Id: 6mA; (9)Quiescent current, TJ = 125℃, Id: 5.5mA; (10) Quiescent current change, IO=1 to 40mA, ΔId: 0.2mA; (11) Quiescent current change, VI=6.3 to 20V, ΔId: 1.5mA.

Features

L78L12ACU features: (1)Output current up to 100mA; (2)Output voltages of 5V; (3)Thermal overload protection; (4)Short circuit protection; (5)No external components are required; (6)Available in either ± 4 % (AC) or ± 8 % (C)selection.

Diagrams

L78L12ACU block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
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L78L12ACUTR
L78L12ACUTR

STMicroelectronics

Linear Regulators - Standard 12V 0.1A Positive

Data Sheet

0-1: $0.32
1-10: $0.25
10-100: $0.17
100-250: $0.14
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
L78L00
L78L00

Other


Data Sheet

Negotiable 
L78L05
L78L05

Other


Data Sheet

Negotiable 
L78L05ABD
L78L05ABD

STMicroelectronics

Linear Regulators - Standard 5.0V 0.1A Positive

Data Sheet

Negotiable 
L78L05ABD13TR
L78L05ABD13TR

STMicroelectronics

Linear Regulators - Standard 5.0V 0.1A Positive

Data Sheet

0-1: $0.32
1-10: $0.21
10-100: $0.17
100-250: $0.14
L78L05ABUTR
L78L05ABUTR

STMicroelectronics

Linear Regulators - Standard 5.0V 0.1A Positive

Data Sheet

0-1: $0.35
1-10: $0.28
10-100: $0.19
100-250: $0.16
L78L05ABZ
L78L05ABZ

STMicroelectronics

Linear Regulators - Standard 5.0V 0.1A Positive

Data Sheet

0-1: $0.29
1-10: $0.23
10-100: $0.16
100-250: $0.13