SGS Thomson Microelectronics L78M20CV, L78M20CS, L78M12CV, L78M12CS, L78M12CP Datasheet
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L78M00
SERIES
POSITIVE VOLTAGE REGULATORS
September 1998
■ OUTPUTCURRENT TO0.5A
■ OUTPUTVOLTAGESOF 5; 6; 8; 9; 10; 12;15;
18; 20; 24V
■ THERMAL OVERLOADPROTECTION
■ SHORTCIRCUIT PROTECTION
■ OUTPUTTRANSISTOR SOAPROTECTION
DESCRIPTION
The L78M00 series of three-terminal positive
regulators is available in TO-220, ISOWATT220,
SOT-82, SOT-194 and DPAK packages and with
several fixed output voltages, making it useful in
a wide range of applications. These regulators
can provide local on-card regulation, eliminating
the distribution problems associated with single
point regulation. Each type employs internal
current limiting, thermal shut-down and safe area
protection, making it essentially indestructible. If
adequate heat sinking is provided, they can
deliver over 0.5A output current. Although
designed primarily as fixed voltage regulators,
these devices can be used with external
components to obtain adjustable voltages and
currents.
TO-220 ISOWATT220
BLOCK DIAGRAM
SOT-82 SOT-194 DPAK
1/19
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
i
DC InputVoltage(forVO=5to18V)
(forV
O
= 20,24V)
35
40
V
V
I
o
OutputCurrent Internally limited
P
tot
Power Dissipation Internally limited
T
op
Operating Junction Temperature Range 0 to 150
o
C
T
stg
StorageTemperature Range - 65 to 150
o
C
THERMAL DATA
Symbol Parameter SOT-82
SOT-194
DPAK
TO-220 ISOWATT220 Unit
R
thj-case
R
thj-amb
ThermalResistance Junction-case Max
ThermalResistance Junction-ambient Max
8
100
3
50
4
60
o
C/W
o
C/W
CONNECTION DIAGRAMAND ORDERING NUMBERS (top view)
Order Code Output Voltage
TO-220 ISOWATT220 SOT-82 SOT-194 DPAK
L78M05CV
L78M06CV
L78M08CV
L78M09CV
L78M10CV
L78M12CV
L78M15CV
L78M18CV
L78M20CV
L78M24CV
L78M0 5CP
L78M0 6CP
L78M0 8CP
L78M0 9CP
L78M1 0CP
L78M1 2CP
L78M1 5CP
L78M1 8CP
L78M2 0CP
L78M2 4CP
L78M05C X
L78M06C X
L78M08C X
L78M09C X
L78M10C X
L78M12C X
L78M15C X
L78M18C X
L78M20C X
L78M24C X
L78M05CS
L78M06CS
L78M08CS
L78M09CS
L78M10CS
L78M12CS
L78M15CS
L78M18CS
L78M20CS
L78M24CS
L78M05C DT
L78M06C DT
L78M08C DT
L78M09C DT
L78M10C DT
L78M12C DT
L78M15C DT
L78M18C DT
L78M20C DT
L78M24C DT
5V
6V
8V
9V
10V
12V
15V
18V
20V
24V
TO-220/ISOWATT220 SOT82/194
DPAK
L78M00
2/19
SCHEMATICDIAGRAM
APPLICATIONCIRCUIT
L78M00
3/19
TEST CIRCUITS
Figure1 : DC Parameters. Figure 2 : Load Regulation.
Figure3 : Ripple Rejection.
L78M00
4/19
ELECTRICALCHARACTERISTICS FOR L78M05C (refer to the test circuits, Tj=25oC,
V
i
=10V, Io=350 mA, Ci= 0.33 µF, Co= 0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage 4.8 5 5.2 V
V
o
OutputVoltage Io= 5mA to350mA
V
i
=7 to20 V
4.75 5 5.25 V
∆V
o
LineRegulation Io= 200mA Vi= 7 to25V
I
o
= 200mA Vi= 8 to25V
100
50
mV
mV
∆V
o
LoadRegulation Io= 5 to500 mA Tj=25oC
I
o
= 5 to200 mA Tj=25oC
100
50
mV
mV
I
d
Quiescent Current 6mA
∆I
d
Quiescent Current Change Io= 5 to350 mA 0.5 mA
∆I
d
Quiescent Current Change Io= 200mA Vi= 8 to25V 0.8 mA
∆
V
o
∆
T
OutputVoltage Drift Io= 5mA Tj= 0 to125oC-0.5mV/
o
C
e
N
OutputNoise Voltage B = 10Hz to100KHz 40
µV
SVR Supply Voltage Rejection I
o
= 300mA f = 120Hz
V
i
=8 to18 V
62 dB
V
d
Dropout Voltage 2 V
I
sc
ShortCircuitCurrent Vi=35V 300 m A
ELECTRICALCHARACTERISTICS FOR L78M06C (refer to the test circuits, Tj=25oC,
V
i
=11V, Io=350 mA, Ci= 0.33 µF, Co= 0.1 µF unlessotherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage 5.75 6 6.25 V
V
o
OutputVoltage Io= 5 mA to350 mA
V
i
=8 to 21 V
5.766.3V
∆V
o
LineRegulation Io= 200 mA Vi= 8 to25 V
I
o
= 200 mA Vi= 9 to25 V
100
50
mV
mV
∆V
o
LoadRegulation Io= 5 to 500 mA Tj=25oC
I
o
= 5 to 200 mA Tj=25oC
120
60
mV
mV
I
d
Quiescent Current 6mA
∆I
d
Quiescent Current Change Io= 5 to 350 mA 0.5 mA
∆I
d
Quiescent Current Change Io= 200 mA Vi= 9 to 25 V 0.8 mA
∆
V
o
∆
T
OutputVoltage Drift Io= 5 mA Tj= 0 to 125oC-0.5mV/
o
C
e
N
OutputNoise Voltage B = 10Hz to 100KHz 45
µV
SVR Supply Voltage Rejection I
o
= 300 mA f = 120 Hz
V
i
=9 to 19 V
59 dB
V
d
Dropout Voltage 2 V
I
sc
ShortCircuit Current Vi=35V 270 m A
L78M00
5/19
ELECTRICALCHARACTERISTICS FOR L78M08C (refer to the test circuits, Tj=25oC,
V
i
=14V, Io=350 mA, Ci= 0.33 µF, Co= 0.1 µF unlessotherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage 7.7 8 8.3 V
V
o
OutputVoltage Io= 5 mA to350 mA
V
i
=10.5 to 23 V
7.688.4V
∆V
o
LineRegulation Io= 200 mA Vi= 10.5 to 25 V
I
o
= 200 mA Vi=11to25V
100
50
mV
mV
∆V
o
LoadRegulation Io= 5 to 500 mA Tj=25oC
I
o
= 5 to 200 mA Tj=25oC
160
80
mV
mV
I
d
Quiescent Current 6mA
∆I
d
Quiescent Current Change Io= 5 to 350 mA 0.5 mA
∆I
d
Quiescent Current Change Io= 200 mA Vi= 10.5 to 25 V 0.8 mA
∆
V
o
∆
T
OutputVoltage Drift Io= 5 mA Tj= 0 to 125oC-0.5mV/
o
C
e
N
OutputNoise Voltage B = 10Hz to 100KHz 52
µV
SVR Supply Voltage Rejection I
o
= 300 mA f = 120 Hz
V
i
=11.5 to 21.5 V
56 dB
V
d
Dropout Voltage 2 V
I
sc
ShortCircuit Current Vi=35V 250 m A
ELECTRICALCHARACTERISTICS FOR L78M09C (refer to the test circuits, Tj=25oC,
V
i
=15V, Io=350 mA, Ci= 0.33 µF, Co= 0.1 µF unlessotherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage 8.65 9 9.35 V
V
o
OutputVoltage Io= 5 mA to350 mA
V
i
=11.5 to 24 V
8.55 9 9.45 V
∆V
o
LineRegulation Io= 200 mA Vi= 11.5 to 25 V
I
o
= 200 mA Vi=12to25V
100
50
mV
mV
∆V
o
LoadRegulation Io= 5 to 500 mA Tj=25oC
I
o
= 5 to 200 mA Tj=25oC
180
90
mV
mV
I
d
Quiescent Current 6mA
∆I
d
Quiescent Current Change Io= 5 to 350 mA 0.5 mA
∆I
d
Quiescent Current Change Io= 200 mA Vi= 11.5 to 25 V 0.8 mA
∆
V
o
∆
T
OutputVoltage Drift Io= 5 mA Tj= 0 to 125oC-0.5mV/
o
C
e
N
OutputNoise Voltage B = 10Hz to 100KHz 58
µV
SVR Supply Voltage Rejection I
o
= 300 mA f = 120 Hz
V
i
=12.5 to 23 V
56 dB
V
d
Dropout Voltage 2 V
I
sc
ShortCircuit Current Vi=35V 250 m A
L78M00
6/19
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