KA78LXXA
3-terminal 0.1A positive voltage regulator
www.fairchildsemi.com
Features
• Maximum Output Current of 100mA
• Output Voltage of 5V, 6V, 8V, 9V,10V, 12V, 15V, 18V
and 24V
• Thermal Overload Protection
• Short Circuit Current Limiting
• Output Voltage Offered in ± 5% Tolerance
Description
The KA78LXX series of fixed voltage monolithic integrated
circuit voltage regulators are suitable for application that
required supply current up to 100mA.
TO-92
1
1: Output 2: GND 3: Input
8-SOP
1
1: Output 2: GND 3: GND 4: NC
5: NC 6: GND 7: GND 8: Input
Internal Block Diagram
InpVuIt
3
I
REFERENCE VOLTAGE
+
-
GND
2
THERMAL SHUTDOWN
CIRCUIT
SHORT CIRCUIT
PROTECTION
©2000 Fairchild Semiconductor International
RSC
OVu0 tput
1
Rev. 5.0








KA78LXXA
Electrical Characteristics(KA78L10A)
(VI = 16V, IO = 40mA, 0 °C ≤ TJ ≤ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Parameter
Output Voltage
Line Regulation
Symbol
VO
∆VO
Conditions
TJ = 25 °C
TJ = 25 °C
12.5 < VI < 25V
14V ≥ VI ≥ 25V
Min.
9.6
-
Typ.
10.0
100
Max.
10.4
220
- 100 170
Unit
V
mV
mV
Load Regulation
Output Voltage
Quiescent Current
Quiescent Current with line
Change
with load
Output Noise Voltage
Temperature Coefficient of VO
Ripple Rejection
Dropout Voltage
∆VO
VO
IQ
∆IQ
∆IQ
VN
∆VO/∆T
RR
VD
TJ = 25 °C
1mA ≤ IO ≤ 100mA
1mA ≤ IO ≤ 70mA
12.5V < VI < 25V, 1mA < IO < 40mA
12.5V < VI < VMAX (Note2)
1mA < IO < 70mA
TJ = 25 °C
TJ =125 °C
12.5 < VI < 25V
1mA < IO < 40mA
TA = 25 °C, 10Hz < f < 100KHz
IO = 5mA
f = 120Hz, 15V < VI < 25V, TJ = 25 °C
TJ = 25 °C
-
-
9.5
9.5
-
-
-
-
-
-
38
-
20 94
10 47
- 10.5
- 10.5
mV
mV
V
- 6.0
4.2 6.5
mA
- 1.5 mA
- 0.1 mA
74 -
µV
0.95 - mV/ °C
43 -
dB
1.7 -
V
Notes:
1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length
of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests.
2. Power dissipation ≤ 0.75W.
6

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KA78LXXA
Mechanical Dimensions
Package
4.58
+0.25
–0.15
TO-92
0.46 ±0.10
1.27TYP
[1.27 ±0.20]
1.27TYP
[1.27 ±0.20]
3.60 ±0.20
(R2.29)
12
0.38
+0.10
–0.05

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