MC79L15A Fairchild Semiconductor, MC79L15A Datasheet

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MC79L15A

Manufacturer Part Number
MC79L15A
Description
3-Terminal 0.1A Negative Voltage Regulator
Manufacturer
Fairchild Semiconductor
Datasheet

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Features
• Output Current up to 100mA
• No External Components
• Internal Thermal Over Load Protection
• Internal Short Circuit Current Limiting
• Output Voltage Offered in 5% Tolerance
• Output Voltage of -5V, -8V, -12V, -15V, -18V, -24V
Internal Block Diagram
©2002 Fairchild Semiconductor Corporation
MC79LXXA/LM79LXXA
3-Terminal 0.1A Negative Voltage Regulator
R28
D3
Q16
Q14
R23+R21
D2
R24
R22
Q15
Q13
R18
R25
Q11
Q5
Q10
R29
Q17
R7
Q6
Q9
C1
R16 R17
Description
These regulators employ internal current limiting and
thermal shutdown, making them essentially indestructible.
Q12
1. Output 2.3.6.7. Input 5. GND 4.8. NC
R26
TO-92
8-SOP
1
1.GND 2.Input 3.Output
Q8
Q7
1
Q1
R27
Q4
R1
R2
R3
R6
D1
SOT-89
R4
Q2 Q3
R15
www.fairchildsemi.com
R
1
R5
Input
GND
Output
Rev. 1.0.2

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MC79L15A Summary of contents

Page 1

... Output Voltage of -5V, -8V, -12V, -15V, -18V, -24V Internal Block Diagram D3 D2 R22 R23+R21 Q14 Q16 R28 R24 ©2002 Fairchild Semiconductor Corporation Description These regulators employ internal current limiting and thermal shutdown, making them essentially indestructible. TO-92 1 1.GND 2.Input 3.Output 8-SOP 1 1. Output 2.3.6.7. Input 5. GND 4.8. NC ...

Page 2

MC79LXXA/LM79LXXA Absolute Maximum Ratings Parameter Input Voltage (for V = -5V to -8V) o (for V = -12V to -18V) O (for V = -24V) O Operating Temperature Range Storage Temperature Range Electrical Characteristics(MC79L05A/LM79L05A -10V 40mA, ...

Page 3

Electrical Characteristics (MC79L08A -14V 40mA 0. Parameter Output Voltage Line Regulation(Note1) Load Regulation (Note1) Output Voltage Quiescent Current With Line Quiescent Current Change With Load Output Noise Voltage Ripple ...

Page 4

MC79LXXA/LM79LXXA Electrical Characteristics(MC79L12A -19V 40mA 0. Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Output Voltage Quiescent Current With Line Quiescent Current Change With Load Output Noise Voltage ...

Page 5

... Electrical Characteristics(MC79L15A -23V 40mA 0. Parameter Symbol Output Voltage Line Regulation (Note1) Load Regulation (Note1) Output Voltage Quiescent Current With Line Quiescent Current Change With Load Output Noise Voltage Ripple Rejection Dropout Voltage Note: 1. Load and line regulation are specified at constant junction temperature. Change in V into account separately ...

Page 6

MC79LXXA/LM79LXXA Electrical Characteristics(MC79L18A -27V 40mA 0. Parameter Symbol Output Voltage Line Regulation (Note1) Load Regulation (Note1) Output Voltage Quiescent Current With Line Quiescent Current Change With Load Output Noise ...

Page 7

Electrical Characteristics(MC79L24A -33V 40mA 0. Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Output Voltage Quiescent Current With Line Quiescent Current Change With Load Output Noise Voltage Ripple ...

Page 8

MC79LXXA/LM79LXXA Typical Application Design Considerations The MC79LXXA/LM79LXXA Series of fixed voltage regulators are designed with Thermal Overload Protection that shuts down the circuit when subjected to an excessive power overload condition. Internal Short Circuit Protection that limits the maximum current ...

Page 9

Mechanical Dimensions Package +0.25 4.58 –0.15 0.46 0.10 1.27TYP [1.27 ] 0.20 3.60 0.20 (R2.29) Dimensions in millimeters TO-92 1.27TYP [1.27 ] 0.20 MC79LXXA/LM79LXXA +0.10 0.38 –0.05 9 ...

Page 10

MC79LXXA/LM79LXXA Mechanical Dimensions Package #1 #4 6.00 0.236 3.95 0.156 0.225 0.50 0.20 0.020 0.008 10 (Continued) 8-SOP 1.55 0.20 0.061 0.008 #8 #5 0.30 1.80 MAX 0.012 0.071 0.20 0.008 5.72 Dimensions in millimeters 0.1~0.25 MIN 0.004~0.001 ...

Page 11

Mechanical Dimensions Package 4.50 0.20 1.65 0.10 0.50 0.10 1.50 TYP 1.50 TYP (Continued) Dimensions in millimeters SOT-89 C0.2 0.40 0.10 0.40 MC79LXXA/LM79LXXA 1.50 0.20 (0.40) +0.10 –0.05 11 ...

Page 12

... MC79L12ACP MC79L15ACP MC79L18ACP MC79L24ACP MC79L05ACD MC79L15ACD MC79L05ACH 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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