SGS Thomson Microelectronics L78M20CV, L78M20CS, L78M12CV, L78M12CS, L78M12CP Datasheet

	L78M00
	SERIES
	POSITIVE VOLTAGE REGULATORS

■OUTPUT CURRENT TO 0.5A

■OUTPUT VOLTAGES OF 5; 6; 8; 9; 10; 12; 15; 18; 20; 24V

■THERMAL OVERLOAD PROTECTION

■SHORT CIRCUIT PROTECTION

■OUTPUT TRANSISTOR SOA PROTECTION

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.

SOT-82

SOT-194

DPAK

TO-220 ISOWATT220

BLOCK DIAGRAM

September 1998

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L78M00

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Vi

Io

Pt ot To p

Tstg

DC Input Voltage (for VO = 5 to 18V)	35	V
(for VO = 20, 24V)	40	V
Output Current	Internally limited
Power Dissipation	Internally limited
Operating Junction Temperature Range	0 to 150	oC
Storage Temperature Range	- 65 to 150	oC

THERMAL DATA

Symbol	Parameter		SOT-82	TO-220	ISOW ATT220	Unit
			SOT-194
			DPAK
Rthj-ca se	Thermal Resistance Junction-case	Max	8	3	4	oC/W
Rthj-a mb	Thermal Resistance Junction-ambient	Max	100	50	60	oC/W

CONNECTION DIAGRAM AND ORDERING NUMBERS (top view)

TO-220/ISOWATT220

SOT82/194

DPAK

		Order Code			Output Voltage
TO-220	ISOWATT220	SOT-82	SOT-194	DPAK
L78M05CV	L78M05CP	L78M05CX	L78M05CS	L78M05CDT	5V
L78M06CV	L78M06CP	L78M06CX	L78M06CS	L78M06CDT	6V
L78M08CV	L78M08CP	L78M08CX	L78M08CS	L78M08CDT	8V
L78M09CV	L78M09CP	L78M09CX	L78M09CS	L78M09CDT	9V
L78M10CV	L78M10CP	L78M10CX	L78M10CS	L78M10CDT	10V
L78M12CV	L78M12CP	L78M12CX	L78M12CS	L78M12CDT	12V
L78M15CV	L78M15CP	L78M15CX	L78M15CS	L78M15CDT	15V
L78M18CV	L78M18CP	L78M18CX	L78M18CS	L78M18CDT	18V
L78M20CV	L78M20CP	L78M20CX	L78M20CS	L78M20CDT	20V
L78M24CV	L78M24CP	L78M24CX	L78M24CS	L78M24CDT	24V

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L78M00

APPLICATION CIRCUIT

SCHEMATIC DIAGRAM

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L78M00

TEST CIRCUITS
Figure 1 : DC Parameters.	Figure 2 : Load Regulation.

Figure 3 : Ripple Rejection.

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								L78M00
ELECTRICAL CHARACTERISTICS FOR L78M05C (refer to the test circuits, Tj = 25 oC,
Vi = 10V, Io = 350 mA, Ci = 0.33 μF, Co = 0.1 μF unless otherwise specified)
Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
Vo	Output Voltage				4.8	5	5.2	V
Vo	Output Voltage	Io = 5 mA to 350 mA			4.75	5	5.25	V
		Vi = 7 to 20 V
Vo	Line Regulation	Io = 200 mA	Vi = 7 to 25 V				100	mV
		Io = 200 mA	Vi = 8 to 25 V				50	mV
Vo	Load Regulation	Io = 5 to 500 mA		Tj = 25 oC			100	mV
		Io = 5 to 200 mA		Tj = 25 oC			50	mV
Id	Quiescent Current						6	mA
Id	Quiescent Current Change	Io = 5 to 350 mA					0.5	mA
Id	Quiescent Current Change	Io = 200 mA	Vi = 8 to 25 V				0.8	mA
Vo	Output Voltage Drift	Io = 5 mA	Tj = 0 to 125 oC			-0.5		mV/oC
T
eN	Output Noise Voltage	B = 10Hz to 100KHz				40		μV
SVR	Supply Voltage Rejection	Io = 300 mA	f = 120 Hz		62			dB
		Vi = 8 to 18 V
Vd	Dropout Voltage					2		V
Isc	Short Circuit Current	Vi = 35 V				300		mA
ELECTRICAL CHARACTERISTICS FOR L78M06C (refer to the test circuits, Tj = 25 oC,
Vi = 11V, Io = 350 mA, Ci = 0.33 μF, Co = 0.1 μF unless otherwise specified)
Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
Vo	Output Voltage				5.75	6	6.25	V
Vo	Output Voltage	Io = 5 mA to 350 mA			5.7	6	6.3	V
		Vi = 8 to 21 V
Vo	Line Regulation	Io = 200 mA	Vi = 8 to 25 V				100	mV
		Io = 200 mA	Vi = 9 to 25 V				50	mV
Vo	Load Regulation	Io = 5 to 500 mA		Tj = 25 oC			120	mV
		Io = 5 to 200 mA		Tj = 25 oC			60	mV
Id	Quiescent Current						6	mA
Id	Quiescent Current Change	Io = 5 to 350 mA					0.5	mA
Id	Quiescent Current Change	Io = 200 mA	Vi = 9 to 25 V				0.8	mA
Vo	Output Voltage Drift	Io = 5 mA	Tj = 0 to 125 oC			-0.5		mV/oC
T
eN	Output Noise Voltage	B = 10Hz to 100KHz				45		μV
SVR	Supply Voltage Rejection	Io = 300 mA	f = 120 Hz		59			dB
		Vi = 9 to 19 V
Vd	Dropout Voltage					2		V
Isc	Short Circuit Current	Vi = 35 V				270		mA

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L78M00

ELECTRICAL CHARACTERISTICS FOR L78M08C (refer to the test circuits, Tj = 25 oC, Vi = 14V, Io = 350 mA, Ci = 0.33 μF, Co = 0.1 μF unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
Vo	Output Voltage				7.7	8	8.3	V
Vo	Output Voltage	Io = 5 mA to 350 mA			7.6	8	8.4	V
		Vi = 10.5 to 23 V
Vo	Line Regulation	Io = 200 mA	Vi = 10.5 to 25 V				100	mV
		Io = 200 mA	Vi = 11 to 25 V				50	mV
Vo	Load Regulation	Io = 5 to 500 mA		Tj = 25 oC			160	mV
		Io = 5 to 200 mA		Tj = 25 oC			80	mV
Id	Quiescent Current						6	mA
Id	Quiescent Current Change	Io = 5 to 350 mA					0.5	mA
Id	Quiescent Current Change	Io = 200 mA	Vi = 10.5 to 25 V				0.8	mA
Vo	Output Voltage Drift	Io = 5 mA	Tj = 0 to 125 oC			-0.5		mV/oC
T
eN	Output Noise Voltage	B = 10Hz to 100KHz				52		μV
SVR	Supply Voltage Rejection	Io = 300 mA	f = 120 Hz		56			dB
		Vi = 11.5 to 21.5 V
Vd	Dropout Voltage					2		V
Isc	Short Circuit Current	Vi = 35 V				250		mA

ELECTRICAL CHARACTERISTICS FOR L78M09C (refer to the test circuits, Tj = 25 oC, Vi = 15V, Io = 350 mA, Ci = 0.33 μF, Co = 0.1 μF unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
Vo	Output Voltage				8.65	9	9.35	V
Vo	Output Voltage	Io = 5 mA to 350 mA			8.55	9	9.45	V
		Vi = 11.5 to 24 V
Vo	Line Regulation	Io = 200 mA	Vi = 11.5 to 25 V				100	mV
		Io = 200 mA	Vi = 12 to 25 V				50	mV
Vo	Load Regulation	Io = 5 to 500 mA		Tj = 25 oC			180	mV
		Io = 5 to 200 mA		Tj = 25 oC			90	mV
Id	Quiescent Current						6	mA
Id	Quiescent Current Change	Io = 5 to 350 mA					0.5	mA
Id	Quiescent Current Change	Io = 200 mA	Vi = 11.5 to 25 V				0.8	mA
Vo	Output Voltage Drift	Io = 5 mA	Tj = 0 to 125 oC			-0.5		mV/oC
T
eN	Output Noise Voltage	B = 10Hz to 100KHz				58		μV
SVR	Supply Voltage Rejection	Io = 300 mA	f = 120 Hz		56			dB
		Vi = 12.5 to 23 V
Vd	Dropout Voltage					2		V
Isc	Short Circuit Current	Vi = 35 V				250		mA

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