KA7905ATU Datasheet, PDF (5/18 Pages) Fairchild Semiconductor – 3-Terminal 1 A Negative Voltage Regulator

Electrical Characteristics (KA7908 / LM7908)
(V_I = -14 V, I_O = 500 mA, 0°C ≤ T_J ≤ +125°C, C_I = 2.2 μF, C_O =1 μF; unless otherwise specified.)
Symbol
V_O
ΔV_O
ΔV_O
I_Q
ΔI_Q
ΔVo/ΔT
V_N
RR
V_D
I_SC
I_PK
Parameter
Output Voltage
Line Regulation⁽⁵⁾
Load Regulation⁽⁵⁾
Quiescent Current
Quiescent Current
Change
Temperature Coefficient
of V_D
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short-Circuit Current
Peak Current
Conditions
T_J =+25°C
I_O = 5 mA to 1 A, P_O ≤ 15 W,
V_I = -10 V to -23 V
T_J = +25°C
V_I = -10.5 V to -25 V
V_I = -11 V to -17 V
T_J = +25°C, I_O = 5 mA to 1.5 A
T_J = +25°C, I_O = 250 mA to 750 mA
T_J = +25°C
I_O = 5 mA to 1 A
V_I = -10.5 V to -25 V
I_O = 5 mA
f = 10 Hz to 100 kHz, T_A = +25°C
f = 120 Hz, ΔV_I = 10 V
T_J =+25°C, I_O = 1 A
T_J =+25°C, V_I = -35 V
T_J = +25°C
Min.
-7.7
-7.6
54
Typ.
-8.0
-8.0
10
5
12
4
3
0.05
0.10
-0.6
175
60
2
300
2.2
Max.
-8.3
-8.4
Unit
V
160
mV
80
160
mV
80
6
mA
0.50
mA
1.00
mV/°C
μV
dB
V
mA
A
Note:
5. 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 is used.
© 2002 Fairchild Semiconductor Corporation
KA79XX / KA79XXA / LM79XX Rev. 1.1.0
5
www.fairchildsemi.com