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Recommended Operating Conditions
Electrical Characteristics
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055M – APRIL 1981 – REVISED OCTOBER 2006
MIN MAX UNIT
TL780-05C 7 25
V
I
Input voltage TL780-12C 14.5 30 V
TL780-15C 17.5 30
I
O
Output current 1.5 A
T
J
Operating virtual junction temperature 0 125 ° C
at specified virtual junction temperature, V
I
= 10 V, I
O
= 500 mA (unless otherwise noted)
TL780-05C
PARAMETER TEST CONDITIONS T
J
(1)
UNIT
MIN TYP MAX
25 ° C 4.95 5 5.05
I
O
= 5 mA to 1 A, P ≤ 15 W,
Output voltage V
V
I
= 7 V to 20 V
0 ° C to 125 ° C 4.9 5.1
V
I
= 7 V to 25 V 0.5 5
Input voltage regulation 25 ° C mV
V
I
= 8 V to 12 V 0.5 5
Ripple rejection V
I
= 8 V to 18 V, f = 120 Hz 0 ° C to 125 ° C 70 85 dB
I
O
= 5 mA to 1.5 A 4 25
Output voltage regulation 25 ° C mV
I
O
= 250 mA to 750 mA 1.5 15
Output resistance f = 1 kHz 0 ° C to 125 ° C 0.0035 Ω
Temperature coefficient of
I
O
= 5 mA 0 ° C to 125 ° C 0.25 mV/ ° C
output voltage
Output noise voltage f = 10 Hz to 100 kHz 25 ° C 75 µ V
Dropout voltage I
O
= 1 A 25 ° C 2 V
Input bias current 25 ° C 5 8 mA
V
I
= 7 V to 25 V 0.7 1.3
Input bias-current change 0 ° C to 125 ° C mA
I
O
= 5 mA to 1 A 0.003 0.5
Short-circuit output current 25 ° C 750 mA
Peak output current 25 ° C 2.2 A
(1) Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a 0.33- µ F capacitor across the input and a 0.22- µ F capacitor across
the output.
3
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