7805•
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
Maximum Dissipated
Power(with heat sink)
Ptot(max) W 15
Maximum Dissipated
Power(without heat sink)
Ptot(max) W 1.5
Thermal Resistance
Junction to Case
OjC °C/W 5.0
Thermal Resistance,
Junction to Air
OjA °C/W 65
Junction Temperature
T
j
150 °C
TO-220
1
1. Input
2. GND
3. Output
Tc=-45÷+70°C
ELECTRICAL CHARACTERISTICS
(Vin=10V,Io=0.5A,Ci=0.33mkF,Co=0.1mkF,Tj=0+125°C, unless otherwise noted.)
Characteristic Symbo
l
Norm Unit
Min TYP Max
Output Voltage(Tj=25°C)
Vo 4.8 5.2 V
Output Voltage (5.0mA≤Io≤1.0A,Po≤15W)
7.0V≤Vin≤20V
Vo
4.75
5.25
V
Line Regulation(Tj=+25°C)
7.0V≤Vin≤25 V
8.0 V≤Vin≤12 V
∆Vv
100
50
mV
Load Regulation(Tj=+25°C)
5.0mA≤Io≤1.5A
0.25A≤Io≤0.75A
∆Vi
100
50
mV
Quiescent Current(Tj=+25°C) Ib 8.0 mA
Quiescent Current Change7.0 V≤Vin≤25 V
5.0mA≤Io≤1.0 A
∆Ib
1.3
0.5
mA
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 Voltage TCVo 0.3 mV/°C
