Fairchild Semiconductor MC7824CT, MC7818, MC7824ACT, MC7815CT, MC7815ACT Datasheet

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MC78XX/LM78XX/MC78XXA

3-Terminal 1A Positive Voltage Regulator

Features		Description
• Output Current up to 1A		The MC78XX/LM78XX/MC78XXA series of three
• Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V		terminal positive regulators are	available in the
•	Thermal Overload Protection	TO-220/D-PAK package and with several fixed output
•	Short Circuit Protection	voltages, making them useful in a wide range of
• Output Transistor Safe Operating Area Protection		applications. Each type employs internal current limiting,
		thermal shut down and safe operating area protection,
		making it essentially indestructible. If adequate heat sinking
		is provided, they can deliver		over 1A 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

1

D-PAK

1

1. Input 2. GND 3. Output

Internal Block Digram

Rev. 1.0.1

©2001 Fairchild Semiconductor Corporation

MC78XX/LM78XX/MC78XXA

Absolute Maximum Ratings

Parameter	Symbol	Value	Unit
Input Voltage (for VO = 5V to 18V)	VI	35	V
(for VO = 24V)	VI	40	V
Thermal Resistance Junction-Cases (TO-220)	Rθ JC	5	oC/W
Thermal Resistance Junction-Air (TO-220)	Rθ JA	65	oC/W
Operating Temperature Range	TOPR	0 ~ +125	oC
Storage Temperature Range	TSTG	-65 ~ +150	oC

Electrical Characteristics (MC7805/LM7805)

(Refer to test circuit ,0° C < TJ < 125° C, IO = 500mA, VI = 10V, CI= 0.33µ F, CO= 0.1µ F, unless otherwise specified)

	Parameter	Symbol	Conditions			MC7805/LM7805			Unit
						Min.	Typ.	Max.
	Output Voltage	VO	TJ =+25 oC			4.8	5.0	5.2
			5.0mA ≤ Io ≤ 1.0A, PO ≤ 15W						V
			VI = 7V to 20V			4.75	5.0	5.25
	Line Regulation (Note1)	Regline	TJ=+25 oC		VO = 7V to 25V	-	4.0	100	mV
					VI = 8V to 12V	-	1.6	50
	Load Regulation (Note1)	Regload	TJ=+25 oC		IO = 5.0mA to1.5A	-	9	100	mV
					IO =250mA to	-	4	50
					750mA
	Quiescent Current	IQ	TJ =+25 oC			-	5.0	8.0	mA
	Quiescent Current Change	∆ IQ	IO = 5mA to 1.0A			-	0.03	0.5	mA
			VI= 7V to 25V			-	0.3	1.3
	Output Voltage Drift	∆ VO/∆ T	IO= 5mA			-	-0.8	-	mV/ oC
	Output Noise Voltage	VN	f = 10Hz to 100KHz, TA=+25 oC			-	42	-	µ V/Vo
	Ripple Rejection	RR	f = 120Hz			62	73	-	dB
			VO = 8V to 18V
	Dropout Voltage	VDrop	IO = 1A, TJ =+25 oC			-	2	-	V
	Output Resistance	rO	f = 1KHz			-	15	-	mΩ
	Short Circuit Current	ISC	VI = 35V, TA =+25 oC			-	230	-	mA
	Peak Current	IPK	TJ =+25 oC			-	2.2	-	A

Note:

1.Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used.

2

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7806)

(Refer to test circuit ,0° C < TJ < 125° C, IO = 500mA, VI =11V, CI= 0.33µ F, CO= 0.1µ F, unless otherwise specified)

Parameter	Symbol	Conditions				MC7806				Unit
					Min.		Typ.		Max.
Output Voltage	VO	TJ =+25 oC			5.75		6.0		6.25
		5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W								V
		VI = 8.0V to 21V			5.7		6.0		6.3
Line Regulation (Note1)	Regline	TJ =+25 oC		VI = 8V to 25V	-		5		120	mV
				VI = 9V to 13V	-		1.5		60
Load Regulation (Note1)	Regload	TJ =+25 oC		IO =5mA to 1.5A	-		9		120	mV
				IO =250mA to750A	-		3		60
Quiescent Current	IQ	TJ =+25 oC			-		5.0		8.0	mA
Quiescent Current Change	∆ IQ	IO = 5mA to 1A			-		-		0.5	mA
		VI = 8V to 25V			-		-		1.3
Output Voltage Drift	∆ VO/∆ T	IO = 5mA			-		-0.8		-	mV/ oC
Output Noise Voltage	VN	f = 10Hz to 100KHz, TA =+25 oC			-		45		-	µ V/Vo
Ripple Rejection	RR	f = 120Hz			59		75		-	dB
		VI = 9V to 19V
Dropout Voltage	VDrop	IO = 1A, TJ =+25 oC			-		2		-	V
Output Resistance	rO	f = 1KHz			-		19		-	mΩ
Short Circuit Current	ISC	VI= 35V, TA=+25 oC			-		250		-	mA
Peak Current	IPK	TJ =+25 oC			-		2.2		-	A

Note:

1.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.

3

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7808)

(Refer to test circuit ,0° C < TJ < 125° C, IO = 500mA, VI =14V, CI= 0.33µ F, CO= 0.1µ					F, unless otherwise specified)
Parameter	Symbol	Conditions					MC7808				Unit
						Min.		Typ.		Max.
Output Voltage	VO	TJ =+25 oC				7.7		8.0		8.3
		5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W									V
		VI = 10.5V to 23V				7.6		8.0		8.4
Line Regulation (Note1)	Regline	TJ =+25 oC		VI = 10.5V to 25V		-		5.0		160	mV
				VI = 11.5V to 17V		-		2.0		80
Load Regulation (Note1)	Regload	TJ =+25 oC		IO = 5.0mA to 1.5A		-		10		160	mV
				IO= 250mA to 750mA		-		5.0		80
Quiescent Current	IQ	TJ =+25 oC				-		5.0		8.0	mA
Quiescent Current Change	∆ IQ	IO = 5mA to 1.0A				-		0.05		0.5	mA
		VI = 10.5A to 25V				-		0.5		1.0
Output Voltage Drift	∆ VO/∆ T	IO = 5mA				-		-0.8		-	mV/ oC
Output Noise Voltage	VN	f = 10Hz to 100KHz, TA =+25 oC				-		52		-	µ V/Vo
Ripple Rejection	RR	f = 120Hz, VI= 11.5V to 21.5V				56		73		-	dB
Dropout Voltage	VDrop	IO = 1A, TJ=+25 oC				-		2		-	V
Output Resistance	rO	f = 1KHz				-		17		-	mΩ
Short Circuit Current	ISC	VI= 35V, TA =+25 oC				-		230		-	mA
Peak Current	IPK	TJ =+25 oC				-		2.2		-	A

Note:

1.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.

4

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7809)

(Refer to test circuit ,0° C < TJ < 125° C, IO = 500mA, VI =15V, CI= 0.33µ F, CO= 0.1µ F, unless otherwise specified)

Parameter	Symbol		Conditions				MC7809				Unit
						Min.		Typ.		Max.
Output Voltage	VO	TJ =+25° C				8.65		9		9.35
		5.0mA≤	IO ≤ 1.0A, PO ≤ 15W								V
		VI= 11.5V to 24V				8.6		9		9.4
Line Regulation (Note1)	Regline	TJ=+25°	C		VI = 11.5V to 25V	-		6		180	mV
					VI = 12V to 17V	-		2		90
Load Regulation (Note1)	Regload	TJ=+25°	C		IO = 5mA to 1.5A	-		12		180	mV
					IO = 250mA to 750mA	-		4		90
Quiescent Current	IQ	TJ=+25° C				-		5.0		8.0	mA
Quiescent Current Change	∆ IQ	IO = 5mA to 1.0A				-		-		0.5	mA
		VI = 11.5V to 26V				-		-		1.3
Output Voltage Drift	∆ VO/∆ T	IO = 5mA				-		-1		-	mV/ ° C
Output Noise Voltage	VN	f = 10Hz to 100KHz, TA =+25 ° C				-		58		-	µ V/Vo
Ripple Rejection	RR	f = 120Hz				56		71		-	dB
		VI = 13V to 23V
Dropout Voltage	VDrop	IO = 1A, TJ=+25° C				-		2		-	V
Output Resistance	rO	f = 1KHz				-		17		-	mΩ
Short Circuit Current	ISC	VI= 35V, TA =+25° C				-		250		-	mA
Peak Current	IPK	TJ= +25° C				-		2.2		-	A

Note:

1.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.

5

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7810)

(Refer to test circuit ,0° C< TJ < 125° C, IO = 500mA, VI =16V, CI= 0.33µ F, CO=0.1µ						F, unless otherwise specified)
Parameter	Symbol	Conditions						MC7810				Unit
							Min.		Typ.		Max.
Output Voltage	VO	TJ =+25 ° C					9.6		10		10.4
		5.0mA ≤ IO≤ 1.0A, PO ≤ 15W										V
		VI = 12.5V to 25V					9.5		10		10.5
Line Regulation (Note1)	Regline	TJ =+25° C		VI = 12.5V to 25V			-		10		200	mV
				VI	= 13V to 25V		-		3		100
Load Regulation (Note1)	Regload	TJ =+25° C		IO = 5mA to 1.5A			-		12		200	mV
				IO	= 250mA to 750mA		-		4		400
Quiescent Current	IQ	TJ =+25° C					-		5.1		8.0	mA
Quiescent Current Change	∆ IQ	IO = 5mA to 1.0A					-		-		0.5	mA
		VI = 12.5V to 29V					-		-		1.0
Output Voltage Drift	∆ VO/∆ T	IO = 5mA					-		-1		-	mV/° C
Output Noise Voltage	VN	f = 10Hz to 100KHz, TA =+25 ° C					-		58		-	µ V/Vo
Ripple Rejection	RR	f = 120Hz					56		71		-	dB
		VI = 13V to 23V
Dropout Voltage	VDrop	IO = 1A, TJ=+25 ° C					-		2		-	V
Output Resistance	rO	f = 1KHz					-		17		-	mΩ
Short Circuit Current	ISC	VI = 35V, TA=+25 ° C					-		250		-	mA
Peak Current	IPK	TJ =+25 ° C					-		2.2		-	A

Note:

1.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.

6

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7812)

(Refer to test circuit ,0° C < TJ < 125° C, IO = 500mA, VI =19V, CI= 0.33µ F, CO=0.1µ						F, unless otherwise specified)
Parameter	Symbol	Conditions						MC7812				Unit
							Min.		Typ.		Max.
Output Voltage	VO	TJ =+25 oC					11.5		12		12.5
		5.0mA ≤ IO≤ 1.0A, PO≤ 15W										V
		VI = 14.5V to 27V					11.4		12		12.6
Line Regulation (Note1)	Regline	TJ =+25 oC		VI = 14.5V to 30V			-		10		240	mV
				VI	= 16V to 22V		-		3.0		120
Load Regulation (Note1)	Regload	TJ =+25 oC		IO = 5mA to 1.5A			-		11		240	mV
				IO	= 250mA to 750mA		-		5.0		120
Quiescent Current	IQ	TJ =+25 oC					-		5.1		8.0	mA
Quiescent Current Change	∆ IQ	IO = 5mA to 1.0A					-		0.1		0.5	mA
		VI = 14.5V to 30V					-		0.5		1.0
Output Voltage Drift	∆ VO/∆ T	IO = 5mA					-		-1		-	mV/ oC
Output Noise Voltage	VN	f = 10Hz to 100KHz, TA =+25 oC					-		76		-	µ V/Vo
Ripple Rejection	RR	f = 120Hz					55		71		-	dB
		VI = 15V to 25V
Dropout Voltage	VDrop	IO = 1A, TJ=+25 oC					-		2		-	V
Output Resistance	rO	f = 1KHz					-		18		-	mΩ
Short Circuit Current	ISC	VI = 35V, TA=+25 oC					-		230		-	mA
Peak Current	IPK	TJ = +25 oC					-		2.2		-	A

Note:

1.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.

7

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7815)

(Refer to test circuit ,0° C < TJ < 125° C, IO = 500mA, VI =23V, CI= 0.33µ F, CO=0.1µ F, unless otherwise specified)

Parameter	Symbol	Conditions				MC7815				Unit
					Min.		Typ.		Max.
Output Voltage	VO	TJ =+25 oC			14.4		15		15.6
		5.0mA ≤ IO ≤	1.0A, PO ≤ 15W							V
		VI = 17.5V to 30V			14.25		15		15.75
Line Regulation (Note1)	Regline	TJ =+25 oC		VI = 17.5V to 30V	-		11		300	mV
				VI = 20V to 26V	-		3		150
Load Regulation (Note1)	Regload	TJ =+25 oC		IO = 5mA to 1.5A	-		12		300	mV
				IO = 250mA to	-		4		150
				750mA
Quiescent Current	IQ	TJ =+25 oC			-		5.2		8.0	mA
Quiescent Current Change	∆ IQ	IO = 5mA to 1.0A			-		-		0.5	mA
		VI = 17.5V to 30V			-		-		1.0
Output Voltage Drift	∆ VO/∆ T	IO = 5mA			-		-1		-	mV/ oC
Output Noise Voltage	VN	f = 10Hz to 100KHz, TA =+25 oC			-		90		-	µ V/Vo
Ripple Rejection	RR	f = 120Hz			54		70		-	dB
		VI = 18.5V to 28.5V
Dropout Voltage	VDrop	IO = 1A, TJ=+25 oC			-		2		-	V
Output Resistance	rO	f = 1KHz			-		19		-	mΩ
Short Circuit Current	ISC	VI = 35V, TA=+25 oC			-		250		-	mA
Peak Current	IPK	TJ =+25 oC			-		2.2		-	A

Note:

1.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.

8

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7818)

(Refer to test circuit ,0° C < TJ < 125° C, IO = 500mA, VI =27V, CI= 0.33µ F, CO=0.1µ					F, unless otherwise specified)
Parameter	Symbol	Conditions					MC7818				Unit
						Min.		Typ.		Max.
Output Voltage	VO	TJ =+25 oC				17.3		18		18.7
		5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W									V
		VI = 21V to 33V				17.1		18		18.9
Line Regulation (Note1)	Regline	TJ =+25 oC	VI = 21V to 33V			-		15		360	mV
			VI	= 24V to 30V		-		5		180
Load Regulation (Note1)	Regload	TJ =+25 oC	IO = 5mA to 1.5A			-		15		360	mV
			IO	= 250mA to 750mA		-		5.0		180
Quiescent Current	IQ	TJ =+25 oC				-		5.2		8.0	mA
Quiescent Current Change	∆ IQ	IO = 5mA to 1.0A				-		-		0.5	mA
		VI = 21V to 33V				-		-		1
Output Voltage Drift	∆ VO/∆ T	IO = 5mA				-		-1		-	mV/ oC
Output Noise Voltage	VN	f = 10Hz to 100KHz, TA =+25 oC				-		110		-	µ V/Vo
Ripple Rejection	RR	f = 120Hz				53		69		-	dB
		VI = 22V to 32V
Dropout Voltage	VDrop	IO = 1A, TJ=+25 oC				-		2		-	V
Output Resistance	rO	f = 1KHz				-		22		-	mΩ
Short Circuit Current	ISC	VI = 35V, TA=+25 oC				-		250		-	mA
Peak Current	IPK	TJ =+25 oC				-		2.2		-	A

Note:

1.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.

9