SGS Thomson Microelectronics L7824ABV, L7820ACV, L7824ACV, L7820ABV, L7818ACV Datasheet

	L7800AB/AC
	SERIES
	PRECISION 1A REGULATORS

■OUTPUT CURRENT IN EXCESS OF 1 A

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

■THERMAL OVERLOAD PROTECTION

■OUTPUT TRANSITION SOA PROTECTION

■2% OUTPUT VOLTAGE TOLERANCE

■GUARANTEED IN EXTENDED TEMPERATURE RANGE

DESCRIPTION

The L7800A series of three-terminal positive regulators is available in TO-220 and D2PAK packages and 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 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.

BLOCK DIAGRAM

D2PAK

TO-220

November 1999

1/17

L7800AB/AC

ABSOLUTE MAXIMUM RATINGS

Symbol	Parameter	Value		Unit
Vi	DC Input Voltage (for VO = 5 to 18V)	35		V
	(for VO = 20, 24V)	40		V
Io	Output Current	Internally	limited
Ptot	Power Dissipation	Internally	limited
Top	Operating Junction Temperature Range (for L7800AC)	0 to 150		o C
	(for L7800AB)	-40 to 125		o C
Tst g	Storage Temperature Range	- 65 to	150	o C

THERMAL DATA

Symbol	Parameter		D2PAK	TO-220	Unit
Rthjca se	Thermal Resistance Junction-case	Max	3	3	oC/W
Rthjamb	Thermal Resistance Junction-ambient	Max	62.5	50	oC/W

CONNECTION DIAGRAM AND ORDERING NUMBERS (top view)

	TO-220		D2PAK
Type	TO-220	D2PAK (*)	Output Voltage
L7805AB	L7805ABV	L7805ABD2T	5V
L7805AC	L7805ACV	L7805ACD2T	5V
L7806AB	L7806ABV	L7806ABD2T	6V
L7806AC	L7806ACV	L7806ACD2T	6V
L7808AB	L7808ABV	L7808ABD2T	8V
L7808AC	L7808ACV	L7808ACD2T	8V
L7809AB	L7809ABV	L7809ABD2T	9V
L7809AC	L7809ACV	L7809ACD2T	9V
L7812AB	L7812ABV	L7812ABD2T	12V
L7812AC	L7812ACV	L7812ACD2T	12V
L7815AB	L7815ABV	L7815ABD2T	15V
L7815AC	L7815ACV	L7815ACD2T	15V
L7818AB	L7818ABV		18V
L7818AC	L7818ACV		18V
L7820AB	L7820ABV		24V
L7820AC	L7820ACV		24V
L7824AB	L7824ABV
L7824AC	L7824ACV

(*) AVAILABLE IN TAPE AND REEL WITH º-TRº SUFFIX

2/17

L7800AB/AC

APPLICATION CIRCUIT

SCHEMATIC DIAGRAM

3/17

L7800AB/AC

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

Figure 3 : Ripple Rejection.

4/17

L7800AB/AC

ELECTRICAL CHARACTERISTICS FOR L7805A (Vi = 10V, Io = 1 A, Tj = 0 to 125 oC (L7805AC), Tj = -40 to 125 oC (L7805AB) unless otherwise specified)

Symbol	Parameter		Test Conditions			Min.	Typ.	Max.	Unit
Vo	Output Voltage	Tj = 25 oC				4.9	5	5.1	V
Vo	Output Voltage	Io = 5 mA to 1 A			Po ≤ 15 W	4.8	5	5.2	V
		Vi = 7.5 to 20 V
Vo*	Line Regulation	Vi = 7.5 to 25 V		Io = 500 mA			7	50	mV
		Vi = 8 to 12 V		Tj = 25 oC			10	5	mV
		Vi = 8 to 12 V					2	25	mV
		Vi = 7.3 to 20 V		Tj = 25 oC			7	50	mV
Vo*	Load Regulation	Io = 5 mA to 1 A			Tj = 25 oC		25	100	mV
		Io = 5 mA to 1.5 A					30	100	mV
		Io = 250 to 750 mA					8	50	mV
Id	Quiescent Current	Tj = 25 oC					4.3	6	mA
								6
Id	Quiescent Current Change	Vi = 8 to 25 V		Io = 500 mA				0.8	mA
		Vi = 7.5 to 20 V		Tj = 25 oC				0.8	mA
		Io = 5 mA to 1 A						0.5	mA
SVR	Supply Voltage Rejection	Vi = 8 to 18 V		f = 120 Hz			68		dB
		Io = 500 mA
Vd	Dropout Voltage	Io = 1 A	Tj = 25 oC				2		V
eN	Output Noise Voltage	B = 10Hz to 100KHz			Tj = 25 oC		10		μV/Vo
Ro	Output Resistance	f = 1KHz					17		mΩ
Is c	Short Circuit Current	Vi = 35 V	Tamb = 25 oC				0.2		A
Iscp	Short Circuit Peack Current	Tj = 25 oC					2.2		A
Vo	Output Voltage Drift						-1.1		mV/oC

T

* 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 cycle is used.

5/17

L7800AB/AC

ELECTRICAL CHARACTERISTICS FOR L7806A (Vi = 11V, Io = 1 A, Tj = 0 to 125 oC (L7806AC), Tj = -40 to 125 oC (L7806AB) unless otherwise specified)

Symbol	Parameter		Test Conditions			Min.	Typ.	Max.	Unit
Vo	Output Voltage	Tj = 25 oC				5.88	6	6.12	V
Vo	Output Voltage	Io = 5 mA to 1 A			Po ≤ 15 W	5.76	6	6.24	V
		Vi = 8.6 to 21 V
Vo*	Line Regulation	Vi = 8.6 to 25 V		Io = 500 mA			9	60	mV
		Vi = 9 to 13 V		Tj = 25 oC			11	60	mV
		Vi = 9 to 13 V					3	30	mV
		Vi = 8.3 to 21 V		Tj = 25 oC			9	60	mV
Vo*	Load Regulation	Io = 5 mA to 1 A			Tj = 25 oC		25	100	mV
		Io = 5 mA to 1.5 A					30	100	mV
		Io = 250 to 750 mA					10	50	mV
Id	Quiescent Current	Tj = 25 oC					4.3	6	mA
								6
Id	Quiescent Current Change	Vi = 9 to 25 V		Io = 500 mA				0.8	mA
		Vi = 8.6 to 21 V		Tj = 25 oC				0.8	mA
		Io = 5 mA to 1 A						0.5	mA
SVR	Supply Voltage Rejection	Vi = 9 to 19 V		f = 120 Hz			65		dB
		Io = 500 mA
Vd	Dropout Voltage	Io = 1 A	Tj = 25 oC				2		V
eN	Output Noise Voltage	B = 10Hz to 100KHz			Tj = 25 oC		10		μV/Vo
Ro	Output Resistance	f = 1KHz					17		mΩ
Is c	Short Circuit Current	Vi = 35 V	Tamb = 25 oC				0.2		A
Iscp	Short Circuit Peack Current	Tj = 25 oC					2.2		A
Vo	Output Voltage Drift						-0.8		mV/oC

T

* 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 cycle is used.

6/17