TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
TO-220
ITO-220
Pin Definition:
1. Ground
2. Input (tab)
3. Output
General Description
The TS7900 series of fixed output negative voltage regulators are intended as complements to the popular TS7800
series device. These negative regulators are available in the same seven-voltage options as the TS7900 devices.
In addition, one extra voltage option commonly employed in MECL systems is also available in the negative
TS7900 Series. Available in fixed output voltage options from -5.0 to -24 volts, these regulators employ current
limiting, thermal shutdown, and safe-area compensation--making them remarkably rugged under most operating
conditions. With adequate heat sinking they can deliver output currents in excess of 1 ampere.
Features
Standard Application Circuit
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Output Voltage: -5 & -12V
Output current up to 1A
No external components required
Internal thermal overload protection
Internal short-circuit current limiting
Output transistor safe-area compensation
Output voltage offered in 4% tolerance
A common ground is required between the input and
the output voltages. The input voltage must remain
typically 2.0V above the output voltage even during the
low point on the Input ripple voltage.
XX = these two digits of the type number indicate
voltage.
* = Cin is required if regulator is located an appreciable
distance from power supply filter.
** = Co is not needed for stability; however, it does
improve transient response.
Ordering Information
Part No.
TS79xxCZ C0
TS79xxCZ C0G
TS79xxCI C0
TS79xxCI C0G
Package
Packing
TO-220
TO-220
ITO-220
ITO-220
50pcs / Tube
50pcs / Tube
50pcs / Tube
50pcs / Tube
Note: Where xx denote voltage option
05=-5V, 12=-12V
“G” denote for Green Product Halogen Free
Absolute Maximum Rating (Ta = 25oC unless otherwise noted)
Parameter
Symbol
Limit
Unit
Input Voltage
VIN
PD
-35
V
Power Dissipation
Internal Limited
W
oC
oC
oC
Operating Junction Temperature Range
Junction Temperature
TJOPR
TJ
0 ~ +125
+150
Storage Temperature Range
TSTG
-65~+150
TO-220
ITO-220
TO-220
ITO-220
3
5
Thermal Resistance - Junction to Case
RӨJC
RӨJA
oC/W
50
60
Thermal Resistance - Junction to Ambient
oC/W
Note: * Follow the derating curve
1/6
Version: F13