CD00000444 Datasheet, PDF (12/58 Pages) STMicroelectronics – Positive voltage regulator ICs

Electrical characteristics
Positive voltage regulator ICs
V_I = 15 V, I_O = 1 A, T_J = 0 to 125 °C (L7809AC), T_J = -40 to 125 °C (L7809AB), unless
otherwise specified^(d).
Table 6. Electrical characteristics of L7809A
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
V_O Output voltage
V_O Output voltage
V_O Output voltage
ΔV_O ⁽¹⁾ Line regulation
ΔV_O ⁽¹⁾ Load regulation
I_q
Quiescent current
T_J = 25°C
I_O = 5 mA to 1 A, V_I = 10.6 to 22 V
I_O = 1 A, V_I = 22 to 24 V, T_J = 25°C
V_I = 10.6 to 25 V, I_O = 500 mA,
T_J = 25°C
V_I = 11 to 17 V
V_I = 11 to 17 V, T_J = 25°C
V_I = 11.4 to 23 V, T_J = 25°C
I_O = 5 mA to 1 A
I_O = 5 mA to 1.5 A, T_J = 25°C
I_O = 250 to 750 mA
T_J = 25°C
8.82 9 9.18 V
8.65 9 9.35 V
8.65 9 9.35 V
12
90
mV
15
90
mV
5
45 mV
12
90
mV
25 100
30 100 mV
10
50
4.3
6
mA
6
mA
V_I = 11 to 25 V, I_O = 500 mA
0.8 mA
ΔI_q Quiescent current change V_I = 10.6 to 23 V, T_J = 25°C
0.8 mA
I_O = 5 mA to 1 A
0.5 mA
SVR Supply voltage rejection
V_I = 11.5 to 21.5 V, f = 120 Hz,
I_O = 500 mA
61
dB
V_d Dropout voltage
I_O = 1 A, T_J = 25°C
2
V
eN Output noise voltage
T_A = 25°C, B =10 Hz to 100 kHz
10
µV/V_O
R_O Output resistance
f = 1 kHz
18
mΩ
I_sc Short circuit current
V_I = 35 V, T_A = 25°C
0.2
A
I_scp Short circuit peak current T_J = 25°C
2.2
A
ΔV_O/ΔT Output voltage drift
-0.8
mV/°C
1. 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.
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d. Minimum load current for regulation is 5 mA.
DocID2143 Rev 32