LM340 Motorola Inc, LM340 Datasheet - Page 3

• Manufacturer Part Number: LM340
• Description: THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
• Manufacturer: Motorola Inc

Line Regulation – The change in output voltage for a
change in the input voltage. The measurement is made
under conditions of low dissipation or by using pulse
techniques such that the average chip temperature is not
significantly affected.
Load Regulation – The change in output voltage for a
change in load current at constant chip temperature.
LM340–5.0
ELECTRICAL CHARACTERISTICS
NOTES: 1. T low to T high = 0 to +125 C
MOTOROLA ANALOG IC DEVICE DATA
Output Voltage (T J = +25 C)
Line Regulation (Note 2)
Load Regulation (Note 2)
Output Voltage
Quiescent Current
Quiescent Current Change
Ripple Rejection
Dropout Voltage
Output Resistance (f = 1.0 kHz)
Short Circuit Current Limit (T J = +25 C)
Output Noise Voltage (T A = +25 C)
Average Temperature Coefficient of Output Voltage
Peak Output Current (T J = +25 C)
Input Voltage to Maintain Line Regulation (T J = +25 C)
I O = 5.0 mA to 1.0 A
8.0 Vdc to 20 Vdc
7.0 Vdc to 25 Vdc (T J = +25 C)
8.0 Vdc to 12 Vdc, I O = 1.0 A
7.3 Vdc to 20 Vdc, I O = 1.0 A (T J = +25 C)
5.0 mA
5.0 mA
250 mA
7.0
I O = 1.0 A
T J = +25 C
7.0
5.0 mA
7.5
I O = 1.0 A (T J = +25 C)
10 Hz
I O = 5.0 mA
I O = 1.0 A
2. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately.
V in
V in
V in
Pulse testing with low duty cycle is used.
f
I O
I O
I O
I O
20 Vdc, 5.0 mA
25 Vdc, I O = 500 mA
20 Vdc, I O = 1.0 A
100 kHz
1.0 A
1.5 A (T J = +25 C)
1.0 A, V in = 10 V
750 mA (T J = +25 C)
I O
Characteristics
1.0 A, P D
(V in = 10 V, I O = 500 mA, T J = T low to T high [Note 1], unless otherwise noted.)
15 W
LM340, A Series
DEFINITIONS
Maximum Power Dissipation – The maximum total device
dissipation for which the regulator will operate within
specifications.
Quiescent Current – That part of the input current that is not
delivered to the load.
Output Noise Voltage – The rms AC voltage at the output,
with constant load and no input ripple, measured over a
specified frequency range.
Symbol
Reg load
V I – V O
Reg line
TCV O
I SC
V O
V O
RR
V n
r O
I O
I B
I B
4.75
Min
4.8
7.3
62
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Typ
5.0
4.0
1.7
2.0
2.0
2.4
80
40
0.6
–
–
–
–
–
–
–
–
–
–
–
–
–
Max
5.25
5.2
8.5
8.0
1.0
0.5
1.0
50
50
25
50
50
50
25
–
–
–
–
–
–
–
–
mV/ C
Unit
Vdc
Vdc
Vdc
m
Vdc
mV
mV
mA
mA
dB
A
A
V
3