LM79M05 Fairchild Semiconductor, LM79M05 Datasheet

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LM79M05

Manufacturer Part Number
LM79M05
Description
The LM79MXX series of 3-Terminal medium current negative voltage regulators are monolithic integrated circuits designed as fixed voltage regulators
Manufacturer
Fairchild Semiconductor
Datasheet

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Schematic Diagram
Features
• No External Components Required
• Output Current in Excess of 0.5A
• Internal Thermal Overload
• Internal Short Circuit Current Limiting
• Output Transistor Safe Area Compensation
• Output Voltages of -5V
©2011 Fairchild Semiconductor Corporation
LM79M05
3-Terminal 0.5A Negative Voltage Regulator
Q1
D2
D1
D3
Q2
Q4
R1
Q3
Q5
Q8
Q6
R4
Q9
R3
R2
Q10
R5
Q11
Q7
Q12
R6
R7
R24
R8
D5
Q13
Q14
R25
R9
Q15
Q19
Q16
Q20
R10 R11
Description
The LM79M05 of 3-Terminal medium current negative volt-
age regulator is monolithic integrated circuits designed as
fixed voltage regulator. This regulator employs internal cur-
rent limiting, thermal shutdown and safe area compensation
making them essentially indestructible.
1. GND 2. Input 3. Output
TO-220 (Single Gauge)
R18
1
R12
Q17
R13
R19
Q24 Q25
Q18
C1
Q21 Q22
C2
R17
D4
R21
R20
www.fairchildsemi.com
Q23
R14
R22
Q26
Q27
R16
R23
R15
OUT
GND
IN
Rev. 1.0.4

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LM79M05 Summary of contents

Page 1

... ©2011 Fairchild Semiconductor Corporation Description The LM79M05 of 3-Terminal medium current negative volt- age regulator is monolithic integrated circuits designed as fixed voltage regulator. This regulator employs internal cur- rent limiting, thermal shutdown and safe area compensation making them essentially indestructible. TO-220 (Single Gauge ...

Page 2

... Absolute Maximum Ratings Parameter Input Voltage(for V = -5V) O Thermal Resistance Junction-Cases Thermal Resistance Junction-Air Operating Temperature Range Storage Temperature Range Electrical Characteristics (LM79M05) (Refer to test circuit, 0°C ≤T ≤ +125° Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current ...

Page 3

... Required for stability. For value given, capacitor must be solid tantalum. 25μF aluminum electrolytic may be substituted improves transient response and ripple rejection. Do not increase beyond 50μ LM79M05 1 Figure 1. Fixed Output Regulator LM79M05 25uF + Figure 2. Variable Output 1.0uF SOLID 1uF TANTALUM + R 2 LM79M05 3 ...

Page 4

... LM79M05 Mechanical Dimensions Package TO-220 [ SINGLE GAUGE ] 4 Dimensions in millimeters ...

Page 5

... LM79M05 Ordering Information Product Number LM79M05CT TO-220 (Single Gauge) DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...

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