Datasheet

MC7800, MC7800A, LM340, LM340A Series, NCV7805
http://onsemi.com
7
ELECTRICAL CHARACTERISTICS (V
in
= 15 V, I
O
= 500 mA, T
J
= T
low
to T
high
[Note 1], unless otherwise noted.)
MC7809B MC7809C
Characteristic Symbol Min Typ Max Min Typ Max Unit
Output Voltage (T
J
= 25°C) V
O
8.65 9.0 9.35 8.65 9.0 9.35 Vdc
Output Voltage (5.0 mA ≤ I
O
≤ 1.0 A, P
D
≤ 15 W) V
O
Vdc
11.5 Vdc ≤ V
in
≤ 24 Vdc 8.55 9.0 9.45 8.55 9.0 9.45
Line Regulation, T
J
= 25°C (Note 2) Reg
line
mV
11 Vdc ≤ V
in
≤ 26 Vdc – 6.2 32 – 6.2 32
11.5 Vdc ≤ V
in
≤ 17 Vdc – 1.8 16 – 1.8 16
Load Regulation, T
J
= 25°C (Note 2) Reg
load
– 1.5 35 – 1.5 35 mV
5.0 mA ≤ I
O
≤ 1.5 A
Quiescent Current I
B
– 3.4 8.0 – 3.4 8.0 mA
Quiescent Current Change ∆I
B
mA
11.5 Vdc ≤ V
in
≤ 26 Vdc – – 1.0 – – 1.0
5.0 mA ≤ I
O
≤ 1.0 A – – 0.5 – – 0.5
Ripple Rejection RR 56 61 – 56 61 – dB
11.5 Vdc ≤ V
in
≤ 21.5 Vdc, f = 120 Hz
Dropout Voltage (I
O
= 1.0 A, T
J
= 25°C) V
I
– V
O
– 2.0 – – 2.0 – Vdc
Output Noise Voltage (T
A
= 25°C) V
n
– 10 – – 10 – µV/V
O
10 Hz ≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz r
O
– 1.0 – – 1.0 – mΩ
Short Circuit Current Limit (T
A
= 25°C) I
SC
– 0.2 – – 0.2 – A
V
in
= 35 Vdc
Peak Output Current (T
J
= 25°C) I
max
– 2.2 – – 2.2 – A
Average Temperature Coefficient of Output Voltage TCV
O
– –0.5 – – –0.5 – mV/°C
ELECTRICAL CHARACTERISTICS (V
in
= 19 V, I
O
= 500 mA, T
J
= T
low
to T
high
[Note 1], unless otherwise noted.)
MC7812B MC7812C/LM340T–12
Characteristic Symbol Min Typ Max Min Typ Max Unit
Output Voltage (T
J
= 25°C) V
O
11.5 12 12.5 11.5 12 12.5 Vdc
Output Voltage (5.0 mA ≤ I
O
≤ 1.0 A, P
D
≤ 15 W) V
O
Vdc
14.5 Vdc ≤ V
in
≤ 27 Vdc – – – 11.4 12 12.6
15.5 Vdc ≤ V
in
≤ 27 Vdc 11.4 12 12.6 – – –
Line Regulation, T
J
= 25°C (Note 2) Reg
line
mV
14.5 Vdc ≤ V
in
≤ 30 Vdc – 7.5 240 – 3.8 24
16 Vdc ≤ V
in
≤ 22 Vdc – 2.2 120 – 0.3 24
14.8 Vdc ≤ V
in
≤ 27 Vdc, I
O
= 1.0 A – – – – – 48
Load Regulation, T
J
= 25°C (Note 2) Reg
load
– 1.6 240 – 8.1 60 mV
5.0 mA ≤ I
O
≤ 1.5 A
Quiescent Current I
B
– 3.4 8.0 – 3.4 6.5 mA
Quiescent Current Change ∆I
B
mA
14.5 Vdc ≤ V
in
≤ 30 Vdc, I
O
= 1.0 A, T
J
= 25°C – – – – – 0.7
15 Vdc ≤ V
in
≤ 30 Vdc – – 1.0 – – 0.8
5.0 mA ≤ I
O
≤ 1.0 A – – 0.5 – – 0.5
Ripple Rejection RR – 60 – 55 60 – dB
15 Vdc ≤ V
in
≤ 25 Vdc, f = 120 Hz
Dropout Voltage (I
O
= 1.0 A, T
J
= 25°C) V
I
– V
O
– 2.0 – – 2.0 – Vdc
1. T
low
=0°C for MC78XXAC, C, LM340AT–XX, LM340T–XX T
high
= +125°C for MC78XXAC, C, LM340AT–XX, LM340T–XX, NCV7805
= 40°C for MC78XXB, MC78XXAB, NCV7805
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. Pulse testing with low duty cycle is used.