KA7805ETSTU Datasheet, PDF (4/27 Pages) Fairchild Semiconductor – 3-Terminal 1 A Positive Voltage Regulator

Electrical Characteristics (KA7805E / KA7805ER)
Refer to test circuit, 0°C < T_J < 125°C, I_O = 500 mA, V_I =10 V, C_I= 0.33 μF, C_O=0.1 μF, unless otherwise specified.
Symbol
V_O
Regline
Regload
I_Q
ΔI_Q
ΔV_O/ΔT
V_N
RR
V_Drop
R_O
I_SC
I_PK
Parameter
Conditions
Output Voltage
Line Regulation⁽³⁾
Load Regulation⁽³⁾
Quiescent Current
Quiescent Current Change
Output Voltage Drift⁽⁴⁾
Output Noise Voltage
Ripple
Rejection⁽⁴⁾
Dropout Voltage
Output Resistance⁽⁴⁾
T_J = +25°C
5.0 mA † I_O † 1.0 A, P_O † 15 W,
V_I = 7 V to 20 V
T_J = +25°C
V_I = 7 V to 25 V
V_I = 8 V to 12 V
T_J = +25°C
I_O = 5.0 mA to1.5 A
I_O =250 mA to 750 mA
T_J = +25°C
I_O = 5 mA to 1.0 A
V_I = 7 V to 25 V
I_O = 5 mA
f = 10 Hz to 100 kHz, T_A = +25°C
f = 120 Hz, V_I = 8 V to 18 V
I_O = 1 A, T_J = +25°C
f = 1 kHz
Short-Circuit Current
Peak Current⁽⁴⁾
V_I = 35 V, T_A = +25°C
T_J = +25°C
Min.
4.80
4.75
62
Typ.
5.00
5.00
Max.
5.20
5.25
Unit
V
4.0 100.0
mV
1.6 50.0
9
100
mV
4
50
5.0 8.0 mA
0.03 0.50
mA
0.30 1.30
-0.8
mV/°C
42
μV/V_O
73
dB
2
V
15
mΩ
230
mA
2.2
A
Notes:
3. 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.
4. These parameters, although guaranteed, are not 100% tested in production.
© 2006 Fairchild Semiconductor Corporation
KA78XXE / KA78XXAE Rev. 1.1.1
4
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