AX78XX Datasheet, PDF (1/11 Pages) List of Unclassifed Manufacturers – 3-Terminal Positive Voltage Regulators

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AX78XX Series
3-Terminal Positive Voltage Regulators
Description
The AX78XX series can provide local on-card regulation, eliminating the
distribution problems associated with single point regulation. Each employs
internal current limiting, thermal shut-down and safe operating area protection,
making it essen-tially indestructible. If adequate heat sinking is provided, they can
deliver over 1A output current. Although designed primarily as fixed voltage
regulators, these devices can be used with external components to obtain
adjustable voltages and currents.
Features
• Output Current In Excess of 1A
• Output Voltages of 5V, 6V, 8V, 9V, 12V
• Internal Short-Circuit Current Limiting & Thermal Overload Protection
• Guaranteed In Extended Temperature Range
Absolute Maximum Ratings (T_A=25°C)
Characteristic
Symbol
Rating
Unit
Input Voltage
V_IN
40
V
Power Dissipation
P_D
Internally limited ^(Note)
Operating Temperature
T_opr
-30 to 85
o_C
Storage Temperature
T_stg
-55 to 150
o_C
Junction Temperature
T_j
150
o_C
Note: (1)T_A=25^oC, TO-251: 1W, TO-252: 1W, SOT-82: 2.1W, TO-220AB: 2.7W
(2)T_C=25^oC, All package: 10W
Thermal Data
Characteristic
Thermal Resistance Junction-Case
Thermal Resistance Junction-Ambient
Symbol
R_th(j-c)
R_th(j-a)
TO-252
12.5
125
Schematic Diagram & Equivalent Circuit
TO-251
12.5
125
AX78XX Series Pin Assignment
Tab
3
2
1
3-Lead Plastic TO-252
Package Code: J
Pin 1: V_IN
Pin 2 & Tab: GND
Pin 3: V_OUT
Tab
123
3-Lead Plastic TO-251
Package Code: I
Pin 1: V_IN
Pin 2 & Tab: GND
Pin 3: V_OUT
3-Lead Plastic SOT-82
Package Code: NE
Pin 1: V_IN
Pin 2: GND
Pin 3: V_OUT
Tab
123
3-Lead Plastic TO-220AB
Package Code: E
Pin 1: V_IN
Pin 2 & Tab: GND
Pin 3: V_OUT
123
SOT-82
12.5
60
TO-220AB
12.5
47
Unit
o_C/W
o_C/W
Schematic Diagram
Equivalent Circuit
Input
Series ^Output
VIN
1
Pass
3
Element
Current
Generator
SOA
Protection
Starting
Circuit
Reference
Voltage
Error
Amplifier
Thermal
Protection
GND
2
VOUT
AVANTICS - AX78XX Series
Specification No.: 050308-FE0003