KA78M08R FAIRCHILD [Fairchild Semiconductor], KA78M08R Datasheet

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KA78M08R

Manufacturer Part Number
KA78M08R
Description
3-Terminal 0.5A Positive Voltage Regulator
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheets

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
KA78M08RTM
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Features
• Output Current up to 0.5A
• Output Voltages of 5, 6, 8, 12, 15, 18, 24V
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area (SOA) Protection
Internal Block Diagram
©2002 Fairchild Semiconductor Corporation
KA78MXX
3-Terminal 0.5A Positive Voltage Regulator
INPUT
1
STARTING
CIRCUIT
CURRENT
GENERATOR
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
Description
The KA78MXX series of three terminal positive regulators
are available in the TO-220/D-PAK package with several
fixed output voltages making it useful in a wide range of
applications.
1. Input 2. GND 3. Output
TO-220
THERMAL
PROTECTION
D-PAK
SOA
PROTECTION
1
1
GND
GND
SERIES
PASS
ELEMENT
www.fairchildsemi.com
R2
OUTPUT
R1
3
Rev. 1.0.5
2
GND

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KA78M08R Summary of contents

Page 1

KA78MXX 3-Terminal 0.5A Positive Voltage Regulator Features • Output Current up to 0.5A • Output Voltages 12, 15, 18, 24V • Thermal Overload Protection • Short Circuit Protection • Output Transistor Safe Operating Area (SOA) Protection ...

Page 2

KA78MXX Absolute Maximum Ratings Parameter Input Voltage (for 18V) O (for V = 24V) O Thermal Resistance Junction-Cases (Note1) TO-220 (Tc = +25 C) Thermal Resistance Junction-Air (Note1,2) TO-220 (Ta = +25 C) D-PAK (Ta = ...

Page 3

Electrical Characteristics (KA78M06/KA78M06R) (Refer to the test circuits, 0 < T < +125 Parameter Symbol Output Voltage V Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift V/ T Output Noise Voltage ...

Page 4

... KA78MXX Electrical Characteristics (KA78M08/KA78M08R) (Refer to the test circuits, 0 < T < +125 Parameter Symbol Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current Note: 1 ...

Page 5

KA78MXX Electrical Characteristics (KA78M12/KA78M12R) (Refer to the test circuits, 0 < T < +125 Parameter Symbol Output Voltage V Line Regulation (Note1) V Load Regulation (Note1) V Quiescent Current I Quiescent Current Change Output Voltage Drift V/ ...

Page 6

Electrical Characteristics (KA78M15) (Refer to the test circuits, 0 < T < +125 Parameter Symbol Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout ...

Page 7

KA78MXX Electrical Characteristics (KA78M18) (Refer to the test circuits, 0 < T < +125 Parameter Symbol Output Voltage V Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift V/ T Output Noise ...

Page 8

KA78MXX Electrical Characteristics (KA78M24) (Refer to the test circuits, 0 < T < +125 Parameter Symbol Output Voltage V Line Regulation Load Regulation Quiescent Current I Quiescent Current Change Output Voltage Drift V/ T Output Noise Voltage ...

Page 9

Typical Applications Notes specify an output voltage, substitute voltage value for "XX" 2. Although no output capacitor is needed for stability, it does improve transient response. 3. Required if regulator is located an appreciable ...

Page 10

KA78MXX Figure 4. Adjustable Output Regulator (7 to 30V) 13V < V < 25V KA78M05 C1 0. < -VI < 17V KA78M05 ...

Page 11

Mechanical Dimensions Package 9.90 0.20 (8.70) ø3.60 0.10 1.27 0.10 2.54TYP [2.54 ] 0.20 10.00 0.20 Dimensions in millimeters TO-220 1.52 0.10 0.80 0.10 0.50 2.54TYP [2.54 ] 0.20 KA78MXX 4.50 0.20 +0.10 1.30 –0.05 +0.10 2.40 0.20 –0.05 11 ...

Page 12

KA78MXX Mechanical Dimensions Package 6.60 0.20 5.34 0.30 (0.50) (4.34) MAX0.96 2.30TYP [2.30 0.20] 12 (Continued) Dimensions in millimeters D-PAK (0.50) 0.76 0.10 2.30TYP [2.30 0.20] 6.60 0.20 (5.34) (5.04) (1.50) (2XR0.25) 2.30 0.10 0.50 0.10 0.50 0.10 1.02 0.20 ...

Page 13

... Ordering Information Product Number Package KA78M05 KA78M06 KA78M08 KA78M12 TO-220 KA78M15 KA78M18 KA78M24 KA78M05R KA78M06R D-PAK KA78M08R KA78M12R Operating Temperature 0 ~ +125 C KA78MXX 13 ...

Page 14

KA78MXX 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 ...

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