L7905CV-DG Datasheet, PDF (10/24 Pages) STMicroelectronics – Negative voltage regulators

Electrical characteristics
L79xxC
Refer to the test circuits, T_J = 0 to 125 °C, V_I = -23 V, I_O = 500 mA, C_I = 2.2 µF, C_O = 1 µF
unless otherwise specified.
Table 7. Electrical characteristics of L7915C
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
V_O Output voltage
T_J = 25°C
-14.4 -15 -15.6 V
V_O Output voltage
I_O = -5 mA to -1 A, P_O ≤ 15 W
V_I = -18.5 to -30 V
-14.3 -15 -15.7 V
ΔV_O(1) Line regulation
V_I = -17.5 to -30 V, T_J = 25°C
V_I = -20 to -26 V, T_J = 25°C
300
mV
150
ΔV_O(1) Load regulation
I_O = 5 mA to 1.5 A, T_J = 25°C
I_O = 250 to 750 mA, T_J = 25°C
300
mV
150
I_d
Quiescent current
T_J = 25°C
3
mA
ΔI_d
I_O = 5 mA to 1 A
Quiescent current change
V_I = -18.5 to -30 V
0.5
mA
1
ΔV_O/ΔT Output voltage drift
I_O = 5 mA
-0.9
mV/°C
eN Output noise voltage
B = 10Hz to 100kHz, T_J = 25°C
250
µV
SVR Supply voltage rejection ΔV_I = 10 V, f = 120Hz
54
60
dB
V_d Dropout voltage
I_O = 1 A, T_J = 25°C, ΔV_O = 100 mV
1.1
V
I_sc Short circuit current
1.3
A
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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Doc ID 2149 Rev 21