ET-79XX Datasheet, PDF (1/5 Pages) Estek Electronics Co. Ltd – 1.5 A Negative Voltage Regulator

ET-79xx
1.5 A Negative Voltage Regulator
Description
This series of fixed-negative-voltage monolithic integrated-circuit voltage regulators is designed to complement Series MIK7800 in a
wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated
with single point regulation. Each of these regulators can deliver up to 1.5 amperes of output current. The internal current limiting and
thermal shutdown features of these regulators make them essentially immune to overload. In addition to use as fixed-voltage regulators,
these devices can be used with external components to obtain adjustable output voltages and current and also as the power pass
element in precision regulators.
Features
• 3-Terminal Regulators
• Output Current Up to 1.5 A
• No External Components
• Internal Thermal Overload Protection
• High Power Dissipation Capability
• Internal Short-Circuit Current Limiting
• Output Transistor Safe Area Compensation
Package information
Package TO-220
(top view)
Typical application data 1.5 A
regulator
When using a negative regulator, bypass capacitors are a
must on both the input and output. Recommended values are
2 µF on the input and 1 µF on the output. It is considered good
practice to include a 0.1 µF capacitor on the output to improve
the transient response (Fig. 1). These capacitors may mylar,
ceramic, or tantalum, provided that they have good high
frequency characteristics.
$V_IN 2
MIK7900
3 ^$Vout
2µF
1µF
1
Figure 1. Negative Regulator
0.1µF
Absolute maximum ratings
over operating temperature range (unless otherwise noted)
Parameter
Input voltage
Continuous total dissipation at 25 °C free-air temperature
Continuous total dissipation at (or bellow) 25 °C case temperature
Operating free-air, case, or virtual junctions temperature range
Storage temperature range
Lead temperature 3.2 mm (1/8 inch) from case for 10 seconds
MIK7924
All others
Maximum
-40
-35
2
15
0 to 150
-65 to 150
260
Units
V
W
°C
Recommended operating conditions
Input voltage V_I
Parameter
Output current, I_O
Operating virtual junction temperature, T_J
MIK7905
MIK7906
MIK7908
MIK7912
MIK7915
MIK7918
MIK7924
Min
-7
-8
-10.5
-14.5
-17.5
-21
-27
0
Max
Units
-25
-25
-25
-30
V
-30
-33
-38
1.5
A
125
°C
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