SGS Thomson Microelectronics L78M18CDT-1, L78M15CDT-1, L78M24CDT-1, L78M06CDT-1, L78M10CDT-1 Datasheet

1/21February 2003

■ OUTPUT CURRENT TO 0.5A

■ OUTPUT VOLTAGES OF 5; 6; 8; 9; 12; 15;

18; 20; 24V

■ THERMAL OVERLOAD PROTECTION

■ SHORT CIRCUIT PROTECTION

■ OUTPUT TRANSITION SOA PROTECTION

DESCRIPTION

The L78M00 series of three-terminal positive
regulators is available in TO-220, TO-220FP,
DPAK and IPAK packag es and with several fixed
output voltages,making it u se ful 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 int ernal current limiting,
thermal shut-down and safe area protection,
making it essentially indestructible . If adequate
heat sin king is prov ided, they can deliver over

0.5A output current. Althoug h designed primarily
as fixed voltage regulators, these devices can be

used with external components to obtain
adjustable voltage and currents.

L78M00
SERIES

POSITIVE VOLTAGE REGULATORS

SCHEMATIC DIAGRAM

TO-220

DPAK

TO-220FP

IPAK

L78M00 SE RIES

2/21

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.

THERMAL DATA

SHEMATIC DIAGRAM

Symbol Parameter² Value Unit

V

I

DC Input Voltage (for VO= 5 to 18V)

(for V

O

= 20, 24V)

35
40

V
V

I

O

Output Current

Internally Limited mA

P

D

Power Dissipation

Internally Limited mW

T

stg

Storage Temperature Range

-65 to +150 °C

T

op

Operating Junction Temperature Range

0 to +150 °C

Symbol Parameter TO-220 TO-220FP DPAK IPAK Unit

R

thj-case

Thermal Resistance Junction-case

3 5 8 °C/W

R

thj-amb

Thermal Resistance Junction-ambient

50 60 100 °C/W

L78M00 SE RIES

3/21

CONNECTION DIAGRAM (t op v iew)

ORDERING CODES

(*) Available in Tape & Reel with the suffix "-TR".

APPLICATION CIRCUITS

TYPE TO-220 TO-220FP DPAK (*) IPAK

OUTPUT

VOLTAGE

L78M05 L78M05CV L78M05CP L78M05CDT L78M05CDT-1 5 V
L78M06 L78M06CV L78M06CP L78M06CDT L78M06CDT-1 6 V
L78M08 L78M08CV L78M08CP L78M08CDT L78M08CDT-1 8 V
L78M09 L78M09CV L78M09CP L78M09CDT L78M09CDT-1 9 V
L78M10 L78M10CV L78M10CP L78M10CDT L78M10CDT-1 10 V
L78M12 L78M12CV L78M12CP L78M12CDT L78M12CDT-1 12 V
L78M15 L78M15CV L78M15CP L78M15CDT L78M15CDT-1 15 V
L78M18 L78M18CV L78M18CP L78M18CDT L78M18CDT-1 18 V
L78M20 L78M20CV L78M20CP L78M20CDT L78M20CDT-1 20 V
L78M24 L78M24CV L78M24CP L78M24CDT L78M24CDT-1 24 V

TO-220 TO-220FP

IPAK

DPAK

L78M00 SE RIES

4/21

TEST CIRCUITS

Figure1 : DC Parameter

Figure2 : Load Regulation

Figure3 : Ripple Rejection

L78M00 SE RIES

5/21

ELECTRICAL CHARACTERISTICS OF L78M05C (refer to the test circuits, TJ= 25°C, VI=10V,
I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

ELECTRICAL CHARACTERISTICS OF L78M06C (refer to the test circuits, T

J

= 25°C, VI=11V,

I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 4.8 5 5.2 V

V

O

Output Voltage IO= 5 to 350 mA VI= 7 to 20 V 4.75 5 5.25 V

∆V

O

Line Regulation VI=7to25V IO= 200 mA 100 mV

V

I

=8to25V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 100 mV

I

O

= 5 to 200 mA TJ= 25°C 50

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI= 8 to 25 V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -0.5 mV/°C

SVR Supply Voltage Rejection V

I

= 8 to 18 V f = 120Hz

I

O

= 300mA

62 dB

eN Output Noise Voltage B =10Hz to 100KHz 40 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 300 mA

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 5.75 6 6.25 V

V

O

Output Voltage IO= 5 to 350 mA VI= 8 to 21 V 5.7 6 6.3 V

∆V

O

Line Regulation VI=8to25V IO= 200 mA 100 mV

V

I

=9to25V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 120 mV

I

O

= 5 to 200 mA TJ= 25°C 60

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI= 9 to 25 V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -0.5 mV/°C

SVR Supply Voltage Rejection V

I

= 9 to 19 V f = 120Hz

I

O

= 300mA

59 dB

eN Output Noise Voltage B =10Hz to 100KHz 45 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 270 mA

L78M00 SE RIES

6/21

ELECTRICAL CHARACTERISTICS OF L78M08C (refer to the test circuits, TJ= 25°C, VI=14V,
I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

ELECTRICAL CHARACTERISTICS OF L78M09C (refer to the test circuits, T

J

= 25°C, VI=15V,

I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 7.7 8 8.3 V

V

O

Output Voltage IO= 5 to 350 mA VI= 10.5 to 23 V 7.6 8 8.4 V

∆V

O

Line Regulation VI= 10.5 to 25 V IO= 200 mA 100 mV

V

I

=11to25V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 160 mV

I

O

= 5 to 200 mA TJ= 25°C 80

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI= 10.5 to 25 V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -0.5 mV/°C

SVR Supply Voltage Rejection V

I

= 11.5 to 21.5 V f = 120Hz

I

O

= 300mA

56 dB

eN Output Noise Voltage B =10Hz to 100KHz 52 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 250 mA

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 8.65 9 9.35 V

V

O

Output Voltage IO= 5 to 350 mA VI= 11.5 to 24 V 8.55 9 9.45 V

∆V

O

Line Regulation VI= 11.5 to 25 V IO= 200 mA 100 mV

V

I

=12to25V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 180 mV

I

O

= 5 to 200 mA TJ= 25°C 90

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI= 11.5 to 25 V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -0.5 mV/°C

SVR Supply Voltage Rejection V

I

= 12.5 to 23 V f = 120Hz

I

O

= 300mA

56 dB

eN Output Noise Voltage B =10Hz to 100KHz 58 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 250 mA

L78M00 SE RIES

7/21

ELECTRICAL CHARACTERISTICS OF L78M10C (refer to the test circuits, TJ= 25°C, VI=16V,
I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

ELECTRICAL CHARACTERISTICS OF L78M12C (refer to the test circuits, T

J

= 25°C, VI=19V,

I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 9.6 10 10.4 V

V

O

Output Voltage IO= 5 to 350 mA VI= 12.5 to 25 V 9.5 10 10.5 V

∆V

O

Line Regulation VI= 12.5 to 30 V IO= 200 mA 100 mV

V

I

=13to30V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 200 mV

I

O

= 5 to 200 mA TJ= 25°C 100

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI= 12.5 to 30 V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -0.5 mV/°C

SVR Supply Voltage Rejection V

I

= 13.5 to 24 V f = 120Hz

I

O

= 300mA

56 dB

eN Output Noise Voltage B =10Hz to 100KHz 64 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 245 mA

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 11.5 12 12.5 V

V

O

Output Voltage IO= 5 to 350 mA VI= 14.5 to 27 V 11.4 12 12.6 V

∆V

O

Line Regulation VI= 14.5 to 30 V IO= 200 mA 100 mV

V

I

=16to30V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 240 mV

I

O

= 5 to 200 mA TJ= 25°C 120

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI= 14.5 to 30 V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -1 mV/°C

SVR Supply Voltage Rejection V

I

= 15 to 25 V f = 120Hz

I

O

= 300mA

55 dB

eN Output Noise Voltage B =10Hz to 100KHz 75 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 240 mA

L78M00 SE RIES

8/21

ELECTRICAL CHARACTERISTICS OF L78M15C (refer to the test circuits, TJ= 25°C, VI=23V,
I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

ELECTRICAL CHARACTERISTICS OF L78M18C (refer to the test circuits, T

J

= 25°C, VI=26V,

I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 14.4 15 15.6 V

V

O

Output Voltage IO= 5 to 350 mA VI= 17.5 to 30 V 14.25 15 15.75 V

∆V

O

Line Regulation VI= 17.5 to 30 V IO= 200 mA 100 mV

V

I

=20to30V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 300 mV

I

O

= 5 to 200 mA TJ= 25°C 150

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI= 17.5 to 30 V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -1 mV/°C

SVR Supply Voltage Rejection V

I

= 18.5 to 28.5 V f = 120Hz

I

O

= 300mA

54 dB

eN Output Noise Voltage B =10Hz to 100KHz 90 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 240 mA

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 17.3 18 18.7 V

V

O

Output Voltage IO= 5 to 350 mA VI= 20.5 to 33 V 17.1 18 18.9 V

∆V

O

Line Regulation VI=21to33V IO= 200 mA 100 mV

V

I

=24to33V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 360 mV

I

O

= 5 to 200 mA TJ= 25°C 180

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI=21to33V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -1.1 mV/°C

SVR Supply Voltage Rejection V

I

= 22 to 32 V f = 120Hz

I

O

= 300mA

53 dB

eN Output Noise Voltage B =10Hz to 100KHz 100 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 240 mA

L78M00 SE RIES

9/21

ELECTRICAL CHARACTERISTICS OF L78M20C (refer to the test circuits, TJ= 25°C, VI=29V,
I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified).

ELECTRICAL CHARACTERISTICS OF L78M24C (refer to the test circuits, T

J

= 25°C, VI=33V,

I

O

=350mA,CI=0.33µF,CO= 0.1 µF unless otherwise specified),

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 19.2 20 20.8 V

V

O

Output Voltage IO= 5 to 350 mA VI=23to35V 19 20 21 V

∆V

O

Line Regulation VI=23to35V IO= 200 mA 100 mV

V

I

=24to35V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 400 mV

I

O

= 5 to 200 mA TJ= 25°C 200

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI=23to35V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -1.1 mV/°C

SVR Supply Voltage Rejection V

I

= 24 to 34 V f = 120Hz

I

O

= 300mA

53 dB

eN Output Noise Voltage B =10Hz to 100KHz 110 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 240 mA

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

O

Output Voltage 23 24 25 V

V

O

Output Voltage IO= 5 to 350 mA VI=27to38V 22.8 24 25.2 V

∆V

O

Line Regulation VI=27to38V IO= 200 mA 100 mV

V

I

=28to38V IO= 200 mA 50

∆V

O

Load Regulation IO= 5 to 500 mA TJ= 25°C 480 mV

I

O

= 5 to 200 mA TJ= 25°C 240

I

d

Quiescent Current 6mA

∆I

d

Quiescent Current Change IO= 5 to 350 mA 0.5 mA

I

O

= 200 mA VI=27to38V 0.8

∆V

O

/∆T Output Voltage Drift IO=5mA TJ= 0 to 125°C -1.2 mV/°C

SVR Supply Voltage Rejection V

I

= 28 to 38 V f = 120Hz

I

O

= 300mA

50 dB

eN Output Noise Voltage B =10Hz to 100KHz 170 µV

V

d

Dropout Voltage 2 V

I

sc

Short Circuit Current VI= 35 V 240 mA

L78M00 SE RIES

10/21

Figure4 : Dropout Voltage vs Junction
Temperature

Figure5 : Dropout Characteristics

Figure6 : Peak Output Current vs Input-Output

Differential Voltage

Figure7 : Output Voltage vs Junction
Temperature

Figure8 : Supply Voltage Rejection vs
Frequency

Figure9 : Quiescent Current vs Junction
Temperature

L78M00 SE RIES

11/21

Figure10 : Load Transient Response

Figure11 : Line Transient Response

Figure12 : Quiescent Current vs Input Voltage

L78M00 SE RIES

12/21

Figure13 : Fixed Output Regulator

NOTE:

1. To specify an output voltage, substitute voltage value for "XX".

2. Although no output capacitor is need for stability, it does improve transient response.

3. Required if regulator is locate an appreciable distance from power supply filter.

Figure14 :

Figure15 :

V

xx

IO=  +I

d

R

1

IR1≥ 5Id

R

2

VO=VXX(1+  )+IdR

2

R

1

L78M00 SE RIES

13/21

Figure16 : Adjustable Output Regulator (7 to 30V)

Figure17 : 0.5 to 10V Regulator

Figure18 : High Current Voltage Regulator

Figure19 : High Output Current with Short Circuit

R

4

VO=Vxx

R

1

V

BEQ1

R1= 

I

Q1

I

REQ

- 

β

Q1

V

BEQ1

IO=I

REG+Q1(IREG

)

R

1

V

BEQ2

VO= 

I

SC

L78M00 SE RIES

14/21

Figure20 : Tracking Voltage Regulator

Figure21 : High Input Voltage Circuit

Figure22 : Reducing Power Dissipation with Dropping Resistor

VIN=VI-(VZ+VBE)

V

I(min) -VXX -VDROP(max)

R= 

I

O(max) +Id(max)

L78M00 SE RIES

15/21

Figure23 : Power AM Modulator (unity voltage gain, I

O

≤ 0.5)

NOTE: The circuit performs well up to 100 KHz.

Figure24 : Adjustable Output Voltage with Temperature Com pensation

NOTE:Q2is connected as a diode inorder tocompensatethe variation of theQ1VBEwith the temperature. C allows aslowrisetime of theVO.

R

2

VO=VXX(1+ ) +V

BE

R

1

L78M00 SE RIES

16/21

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0.051
D 2.40 2.72 0.094 0.107

D1 1.27 0.050

E 0.49 0.70 0.019 0.027

F 0.61 0.88 0.024 0.034
F1 1.14 1.70 0.044 0.067
F2 1.14 1.70 0.044 0.067

G 4.95 5.15 0.194 0.203
G1 2.4 2.7 0.094 0.106
H2 10.0 10.40 0.393 0.409

L2 16.4 0.645
L4 13.0 14.0 0.511 0.551
L5 2.65 2.95 0.104 0.116
L6 15.25 15.75 0.600 0.620
L7 6.2 6.6 0.244 0.260
L9 3.5 3.93 0.137 0.154

DIA. 3.75 3.85 0.147 0.151

TO-220 MECHANICAL DAT

A

P011C

L78M00 SE RIES

17/21

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 4.40 4.60 0.173 0.181
B 2.5 2.7 0.098 0.106
D 2.5 2.75 0.098 0.108
E 0.45 0.70 0.017 0.027

F 0.75 1 0.030 0.039
F1 1.15 1.50 0.045 0.059
F2 1.15 1.50 0.045 0.059

G 4.95 5.2 0.194 0.204

G1 2.4 2.7 0.094 0.106

H 10.0 10.40 0.393 0.409

L2 16 0.630
L3 28.6 30.6 1.126 1.204
L4 9.8 10.6 0.385 0.417
L6 15.9 16.4 0.626 0.645
L7 9 9.3 0.354 0.366

DIA. 3 3.2 0.118 0.126

TO-220FP MECHANICAL DATA

L2

A

B

D

E

H

G

L6

¯

F

L3

G1

123

F2

F1

L7

L4

7012510/F

L78M00 SE RIES

18/21

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 2.2 2.4 0.086 0.094
A1 0.9 1.1 0.035 0.043
A2 0.03 0.23 0.001 0.009

B 0.64 0.9 0.025 0.035
B2 5.2 5.4 0.204 0.212

C 0.45 0.6 0.017 0.023
C2 0.48 0.6 0.019 0.023

D 6 6.2 0.236 0.244

E 6.4 6.6 0.252 0.260

G 4.4 4.6 0.173 0.181

H 9.35 10.1 0.368 0.397
L2 0.8 0.031
L4 0.6 1 0.023 0.039

DPAK MECHANI

CAL DATA

0068772-B

L78M00 SE RIES

19/21

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 2.2 2.4 0.086 0.094
A1 0.9 1.1 0.035 0.043

B 0.64 0.9 0.025 0.035
B2 5.2 5.4 0.204 0.212
B3 0.95 0.037
B5 0.3 0.012
B6 0.95 0.037

C 0.45 0.6 0.017 0.023
C2 0.48 0.6 0.019 0.023

D 6 6.2 0.236 0.244

E 6.4 6.6 0.252 0.260

G 4.4 4.6 0.173 0.181

H 15.9 16.3 0.626 0.641

L 9 9.4 0.354 0.370
L1 0.8 1.2 0.031 0.047
L2 0.8 1 0.031 0.039

IPAK MECHANICAL DATA

0068771-F

L78M00 SE RIES

20/21

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 180 7.086
C 12.8 13.0 13.2 0.504 0.512 0.519
D 20.2 0.795
N 60 2.362

T 14.4 0.567
Ao 6.80 6.90 7.00 0.268 0.272 0.2.76
Bo 10.40 10.50 10.60 0.409 0.413 0.417
Ko 2.55 2.65 2.75 0.100 0.104 0.105
Po 3.9 4.0 4.1 0.153 0.157 0.161

P 7.9 8.0 8.1 0.311 0.315 0.319

Tape & Reel DPAK-PPAK MECHANICAL DATA

L78M00 SE RIES

21/21

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