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Voltage Regulator IC Specs

This datasheet summarizes the specifications and features of a 3-terminal positive voltage regulator integrated circuit. It can supply over 1A of output current, requires no external components, and has internal protections for short circuits and thermal overloads. The IC offers an output voltage with a 4% tolerance in the range of 8.65-9.35V. It has maximum power dissipation ratings of 15W with a heat sink and 1.5W without.
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0% found this document useful (0 votes)
83 views2 pages

Voltage Regulator IC Specs

This datasheet summarizes the specifications and features of a 3-terminal positive voltage regulator integrated circuit. It can supply over 1A of output current, requires no external components, and has internal protections for short circuits and thermal overloads. The IC offers an output voltage with a 4% tolerance in the range of 8.65-9.35V. It has maximum power dissipation ratings of 15W with a heat sink and 1.5W without.
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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7809• THREE-TERMINAL POSITIVE VOLTAGE REGULATOR IC

FEATURES:
- OUTPUT CURRENT IN EXCESS OF 1A;
- NO EXTERNAL COMPONENTS REQUIRED;
- INTERNAL SHORT CIRCUIT CURRENT LIMITING;
- INTERNAL THERMAL OVERLOAD PROTECTION;
- OUTPUT TRANSISTOR SAFE-AREA COMPENSATION;
- OUTPUT VOLTAGE OFFERED IN 4% TOLERANCE.

ABSOLUTE MAXIMUM RATINGS (Ta= 25° C)


Characteristic Symbol Norm Unit
Input Voltage Vin V 35 TO-220
Maximum Dissipated Ptot(max) W 15
Power(with heat sink)
Maximum Dissipated Ptot(max) W 1.5
Power(without heat sink)
Thermal Resistance OjC °C/W 5.0
Junction to Case 1
Thermal Resistance, OjA °C/W 65 1. Input
2. GND
Junction to Air
3. Output
Junction Temperature Tj °C 150
Tc=-45÷+70°C
ELECTRICAL CHARACTERISTICS
(Vin=15V,Io=0.5A,Ci=0.33mkF,Co=0.1mkF,Tj=0+125°C, unless otherwise noted.)
Characteristic Symbo Norm Unit
l
Min TYP Max
Output Voltage(Tj=25°C) Vo 8.65 9.35 V
Output Voltage (5.0mA≤Io≤1.0A,Po≤15W) Vo
11.5V≤Vin≤24V 8.55 9.45 V
Line Regulation(Tj=+25°C) ∆Vv mV
11.5 V≤Vin≤26 V 90
11.5≤ V≤Vin≤17 V 180
Load Regulation(Tj=+25°C ∆Vi mV
5.0mA≤Io≤1.5A 180
0.25A≤Io≤0.75A 90
Quiescent Current(Tj=+25°C) Ib 8.0 mA
Quiescent Current Change 11,5 V≤Vin≤26 V ∆Ib 1.0 mA
5.0mA≤Io≤1.0 A 0.5
Dropout Voltage (Io=1.0A,Tj=+25°C) Vi-Vo 2.0 V
Short Circuit Current Limit(Ta=+25°C),Vin=35V Isс 0.4 A
Peak Output Current(Tj=+25°C) Imax 2.2 A
Average Temperature Coefficient of Output TCVo 0.6 mV/°C
Voltage
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