KA78R05 Fairchild Semiconductor, KA78R05 Datasheet

no-image

KA78R05

Manufacturer Part Number
KA78R05
Description
Low Dropout Voltage Regulator
Manufacturer
Fairchild Semiconductor
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
KA78R05
Manufacturer:
FAIRCHILD
Quantity:
6 021
Part Number:
KA78R05
Manufacturer:
FAIRCHILD
Quantity:
652
Part Number:
KA78R05
Manufacturer:
FAIR
Quantity:
1 000
Part Number:
KA78R05
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Part Number:
KA78R05-STU
Manufacturer:
FAIRCHILD
Quantity:
3 500
Part Number:
KA78R05CTU
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Company:
Part Number:
KA78R05CTU
Quantity:
35 845
Company:
Part Number:
KA78R05CTU
Quantity:
35 845
Part Number:
KA78R05STU
Manufacturer:
FAIRCHILD
Quantity:
25
Part Number:
KA78R05STU
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Part Number:
KA78R05TU
Manufacturer:
FSC
Quantity:
1 512
Features
• 1A / 5V Output low dropout voltage regulator
• TO220 Full-Mold package (4PIN)
• Overcurrent protection, Thermal shutdown
• Overvoltage protection, Short-Circuit protection
• With output disable function
Internal Block Diagram
©2001 Fairchild Semiconductor Corporation
K A 7 8 R 0 5
L ow D r o p o u t Vo l t a ge Re g u l at o r
Vin
1
Vdis
4
HIGH / LOW
1.4V
BANDGAP REFERENCE
THERMAL SHUTDOWN
-
+
OUTPUT
ON / OFF
SHORT-CIRCUIT
SOA PROTECTION
SHORTCIRCUIT
PROTECTION
-
+
OVERVOLTAGE
PROTECTION
GND
Description
The KA78R05 is a low-dropout voltage regulator suitable
for various electronic equipments. It provides constant
voltage power source with TO-220 4 lead full mold package.
Dropout voltage of KA78R05 is below 0.5V in full rated
current(1A). This regulator has various function such as
peak current protection, thermal shut down, overvoltage
protection and output disable function.
3
1. Vin 2. V
TO-220F-4L
1
O
3. GND 4. Vdis
Q1
www.fairchildsemi.com
R1
R2
2
Vo
Rev. 1.0.4

Related parts for KA78R05

KA78R05 Summary of contents

Page 1

... The KA78R05 is a low-dropout voltage regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220 4 lead full mold package. Dropout voltage of KA78R05 is below 0.5V in full rated current(1A). This regulator has various function such as peak current protection, thermal shut down, overvoltage protection and output disable function ...

Page 2

... KA78R05 Absolute Maximum Ratings Parameter Input Voltage Disable Voltage Output Current Power Dissipation 1 Power Dissipation 2 Junction Temperature Operating Temperature Thermal Resistance, Junction-to Case (Note2) Thermal Resistance, Junction-to-Air (Note2) Thermal Shutdown Temperature Electrical Characteristics (Vin = 7V 0.5A unless otherwise specified) Parameter Symbol Output Voltage ...

Page 3

... Figure 2. Quiescent Current vs. Input Voltage 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 2 2.5 3 Figure 4. Output Voltage vs. Temperature(Tj) 0.6 0.5 0.4 0.3 0.2 0.1 0 100 125 o C) Figure 6. Dropout Voltage vs. Junction Temperature KA78R05 RL Input voltage Vin (V) - 100 125 o TEMPERATURE Tj Io=3A 2.0A 1.0A 0. ...

Page 4

... KA78R05 Typical Perfomance Characteristics - TEMPERATURE T Figure 7. Power Dissipation vs. Temperature(Ta) 4 (Continued) 75 100 125 Figure 8. Overcurrent Protection Characteristics 100 100 100 1.5 1.5 1 0.5 0.5 0.5 1.0 1.0 1.0 2.0 2.0 2.0 2.5 2.5 2.5 Output Current(A) Output Current(A) Output Current(A) (Typical Value) 3 ...

Page 5

... Typical Application Vin • required if regulator is located an appreciable distance from power supply filter. • Co improves stability and transient response.(Co > Vdis Figure 1. Application Circuit KA78R05 Vo GND Disable Signal 5 ...

Page 6

... KA78R05 Mechanical Dimensions Package 6 Dimensions in millimeters TO-220F-4L ...

Page 7

... Mechanical Dimensions Package TO-220F-4L (Forming) (Continued) Dimensions in millimeters KA78R05 7 ...

Page 8

... KA78R05 Mechanical Dimensions Package TO-220F-4L (Short Lead) 8 (Continued) Dimensions in millimeters NOTE 1. THESE DIMENSIONS DO NOT INCLUDE MOLD PROTRUSION REFERENCE ASS'Y OUT QUALITY TITLE PKG OUTLINE D TO-220F-4L , SHORT LEAD UNIT TOLERANCE SCALE N DWG. NO. SPEC NO. ...

Page 9

... Ordering Information Product Number KA78R05TU TO-220F-4L KA78R05YDTU TO-220F-4L(Forming) KA78R05TSTU TO-220F-4L(Short Lead) Package Operating Temperature - KA78R05 9 ...

Page 10

... KA78R05 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. ...

Related keywords