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L7912CV Datasheet

Negative voltage regulators

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L79
Datasheet
Negative voltage regulators
3
1
D2 PAK
3
12
TO-220FP
TO-220
1 23
Features
• Output current up to 1.5 A
• Output voltages: -5, -8, -12, and -5 V
• Thermal overload protection
• Short-circuit protection
• Output SOA protection
• Output tolerance 2% (AC version) or 4% (C version) at 25 °C
Description
The L79 series of three-terminal negative regulators is available in TO-220,
TO-220FP and D²PAK packages and several fixed output voltages, making it useful
in a wide range of applications.
These regulators can provide local on-card regulation, eliminating the distribution
problems associated with single point regulation; furthermore, having the same
voltage option as the L78 positive standard series, they are particularly suited for split
power supplies. If adequate heat sinking is provided, they can deliver over 1.5 A
output current.
Although designed primarily as fixed voltage regulators, these devices can be used
with external components to obtain adjustable voltages and currents.
Maturity status link
L79
DS0428 - Rev 24 - January 2019
For further information contact your local STMicroelectronics sales office.
www.st.com


STMicroelectronics Electronic Components Datasheet

L7912CV Datasheet

Negative voltage regulators

No Preview Available !

L79
Diagram
1 Diagram
Figure 1. Schematic diagram
R7
Q8
Q9
R6
D1 D2
R5
Q7
Q2
Q10
Q11
Q3
Q1
Q4
Q6 Q12
Q5
R1 R2 R3
R4
Q13
R8
R9
IN
R18 R19
Q18
Q17
Q16
R10
Q19
Q20
R15
R11
R17
OUT
Q21
D3
Q14 Q15
R12
R13
R20
R14
R21
Q22
R16
DS0428 - Rev 24
page 2/29


Part Number L7912CV
Description Negative voltage regulators
Maker STMicroelectronics
Total Page 29 Pages
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