
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055F – APRIL 1981 – REVISED DECEMBER 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating temperature range (unless otherwise noted)
Input voltage, V
I
Package thermal impedance,
θ
JA
(see Notes 1 and 2): KC package
35 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
°
C/W
23
°
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . .
KTE package
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air, T
A
; case, T
C
; or virtual junction, T
J
, temperature range
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
Storage temperature range, T
stg
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. Maximum power dissipation is a function of TJ(max),
θ
JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) – TA)/
θ
JA. Operating at the absolute maximum TJ of 150
°
C can impact reliability. Due to
variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be
activated at power levels slightly above or below the rated dissipation.
2. The package thermal impedance is calculated in accordance with JESD 51.
0
°
C to 150
°
C
260
°
C
–65
°
C to 150
°
C
recommended operating conditions
MIN
MAX
UNIT
TL780-05C
7
25
Input voltage, VI
TL780-12C
14.5
30
V
TL780-15C
17.5
30
Output current, IO
Operating virtual junction temperature, TJ
1.5
A
°
C
0
125
electrical characteristics at specified virtual junction temperature, V
I
= 10 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
T
TJ
TL780-05C
TYP
UNIT
MIN
4.95
MAX
5.05
Output voltage
IO = 5 mA to 1 A,
VI = 7 V to 20 V
VI = 7 V to 25 V
VI = 8 V to 12 V
VI = 8 V to 18 V,
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
f = 1 kHz
P
≤
15 W,
25
°
C
5
V
0
°
C to 125
°
C
4.9
5.1
Input voltage regulation
25
°
C
0.5
5
mV
0.5
5
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
70
85
dB
Output voltage regulation
25
°
C
4
25
mV
1.5
15
Output resistance
0
°
C to 125
°
C
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.0035
W
Temperature coefficient of output voltage
IO = 5 mA
f = 10 Hz to 100 kHz
0.25
mV/
°
C
μ
V
V
Output noise voltage
75
Dropout voltage
IO = 1 A
2
Input bias current
5
8
mA
Input bias current change
Input bias-current change
VI = 7 V to 25 V
IO = 5 mA to 1 A
0
°
C to 125
°
C
0.7
1.3
mA
0.003
0.5
Short-circuit output current
25
°
C
25
°
C
750
mA
Peak output current
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.
2.2
A