SGS Thomson Microelectronics LD1086V120, LD1086V, LD1086DT90, LD1086DT80, LD1086DT50 Datasheet

	LD1086
	SERIES
	1.5A LOW DROP FIXED AND ADJUSTABLE
	POSITIVE VOLTAGE REGULATORS

■TYPICAL DROPOUT VOLTAGE 1.3V AT 1.5A

■THREE TERMINAL ADJUSTABLE OR FIXED OUTPUT VOLATGE 1.8V, 2.5V, 2.85V, 3.3V, 3.6V, 5V, 8V, 9V, 12V

■GUARANTEED OUTPUT CURRENT UP TO 1.5A

■OUTPUT TOLERANCE ±1% AT 25oC AND

±2% IN FULL TEMPERATURE RANGE

■INTERNAL POWER AND THERMAL LIMIT

■WIDE OPERATING TEMPERATURE RANGE -40oC TO 125oC

■PACKAGE AVAILABLE: TO-220, D2PAK, D2PAK/A, DPAK,

■PINOUT COMPATIBILITY WITH STANDARD ADJUSTABLE VOLTAGE REGULATORS

DESCRIPTION

D2PAK/A

TO-220

D2PAK

DPAK (TO-252)

The LD1086 is a LOW DROP Voltage Regulator able to provide up to 1.5A of Output Current. Dropout is guaranteed at a maximum of 1.5V at the maximum output current, decreasing at lower loads. The LD1086 is a pin compatible with older 3-terminal adjustable regulators, but has better performances in term of drop and output tolerance. A 2.85V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output

current is wasted as quiescent current, the LD1086 quiescent current flow into the load, so increase efficency. Only a 10 μF minimum capacitor is needed for stability. The device is supplied in TO-220, D2PAK, D2PAK/A and DPAK packages. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1% at 25 oC.

BLOCK DIAGRAM

May 2000

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LD1086 SERIES

ABSOLUTE MAXIMUM RATINGS

Symbol	Parameter	Value			Unit
VIN	DC Input Voltage		30		V
IOUT	Output Current	Internally		Limited	mA
Pto t	Power Dissipation	Internally		Limited	mW
Tstg	Storage Temperature Range	-50	to	150	o C
To p	Operating Junction Temperature Range	-40	to	125	o C

Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional operation under these condition is not implied. Over the above suggested Max Power Dissipation a Short Circuit could definetively damage the device.

THERMAL DATA

Symbol	Parameter	TO-220	D2PAK	DPAK	Unit
Rthjca se	Thermal Resistance Junction-case	3	3	8	oC/W
Rthjamb	Thermal Resistance Junction-ambient	50	62.5		oC/W

APPLICATION CIRCUIT FOR FIXED AND ADJUSTABLE VERSION

VO = VREF (1 + R2)

R1

CONNECTION DIAGRAM AND ORDERING NUMBERS (top view)

TO-220	D2PAK

		DPAK		D2PAK/A
TO-220	D2PAK (**)	D2PAK/A (**)	DPAK (**)	Output Voltage
LD1086V18	LD1086D2T18	LD1086D2M18	LD1086DT18	1.8V
LD1086V25	LD1086D2T25	LD1086D2M25	LD1086DT25	2.5V
LD1086V28	LD1086D2T28	LD1086D2M28	LD1086DT28	2.85V
LD1086V33	LD1086D2T33	LD1086D2M33	LD1086DT33	3.3V
LD1086V36	LD1086D2T36	LD1086D2M36	LD1086DT36	3.6V
LD1086V50	LD1086D2T50	LD1086D2M50	LD1086DT50	5V
LD1086V80	LD1086D2T80	LD1086D2M80	LD1086DT80	8V
LD1086V90	LD1086D2T90	LD1086D2M90	LD1086DT90	9V
LD1086V120	LD1086D2T120	LD1086D2M120	LD1086DT120	12V
LD1086V	LD1086D2T	LD1086D2M	LD1086DT	1.25 to 28V

(**) Available in Tape & Reel with the suffix ºTRº.

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LD1086 SERIES

ELECTRICAL CHARACTERISTICS FOR LD1086#18 (refer to the test circuits,
Tj = -40 to 125 oC, VIN = 4.8 V,		CIN = CO = 10 μF unless otherwise specified)
Symbol	Parameter		Test Conditions		Min.	Typ.	Max.	Unit
VO	Output Voltage	IO = 0 mA	Tj = 25 oC		1.782	1.8	1.818	V
VO	Output Voltage (Note 1)	IO = 0 to 1.5 A		VIN = 3.4 to 30 V	1.764	1.8	1.836	V
VO	Line Regulation	VIN = 3.4 to 18 V		IO = 0 mA Tj = 25 oC		0.2	4	mV
VO	Line Regulation	VIN = 3.4 to 18 V		IO = 0 mA		0.4	4	mV
VO	Load Regulation	IO = 0 to 1.5 A		Tj = 25 oC		0.5	8	mV
VO	Load Regulation	IO = 0 to 1.5 A				1	16	mV
Vd	Dropout Voltage	IO = 1.5 A				1.3	1.5	V
Id	Quiescent Current	VIN ≤ 30 V				5	10	mA
ISC	Short Circuit Current	VIN - VO = 5V			1.5	2		A
		VIN - VO = 25V			0.05	0.2
	Thermal Regulation	Ta = 25 oC	30ms Pulse			0.01	0.04	%/W
SVR	Supply Voltage Rejection	IO =1.5 A	f = 120 Hz CO = 25μF		60	82		dB
		VIN = 6.8 ± 3V
eN	Output Noise Voltage	B = 10Hz to 10KHz Ta = 25 oC				0.003		%
S	Temperature Stability					0.5		%
S	Long Term Stability	1000 hrs Ta = 125 oC				0.5		%

Note1: See short-circuit curve for available output current at fixed dropout.

ELECTRICAL CHARACTERISTICS FOR LD1086#25 (refer to the test circuits,
Tj = -40 to 125 oC, VIN = 5.5 V,		CIN = CO = 10 μF unless otherwise specified)
Symbol	Parameter		Test Conditions		Min.	Typ.	Max.	Unit
VO	Output Voltage	IO = 0 mA	Tj = 25 oC		2.475	2.5	2.525	V
VO	Output Voltage (Note 1)	IO = 0 to 1.5 A		VIN = 4.1 to 30 V	2.45	2.5	2.55	V
VO	Line Regulation	VIN = 4.1 to 18 V		IO = 0 mA Tj = 25 oC		0.2	5	mV
VO	Line Regulation	VIN = 4.1 to 18 V		IO = 0 mA		0.4	5	mV
VO	Load Regulation	IO = 0 to 1.5 A		Tj = 25 oC		0.5	10	mV
VO	Load Regulation	IO = 0 to 1.5 A				1	18	mV
Vd	Dropout Voltage	IO = 1.5 A				1.3	1.5	V
Id	Quiescent Current	VIN ≤ 30 V				5	10	mA
ISC	Short Circuit Current	VIN - VO = 5V			1.5	2		A
		VIN - VO = 25V			0.05	0.2
	Thermal Regulation	Ta = 25 oC	30ms Pulse			0.01	0.04	%/W
SVR	Supply Voltage Rejection	IO = 1.5 A	f = 120 Hz CO = 25μF		60	81		dB
		VIN = 7.5 ± 3V
eN	Output Noise Voltage	B = 10Hz to 10KHz Ta = 25 oC				0.003		%
S	Temperature Stability					0.5		%
S	Long Term Stability	1000 hrs Ta = 125 oC				0.5		%

Note1: See short-circuit curve for available output current at fixed dropout.

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LD1086 SERIES

ELECTRICAL CHARACTERISTICS FOR LD1086#285 (refer to the test circuits,
Tj = -40 to 125 oC, VIN = 5.85 V,		CIN = CO = 10 μF unless otherwise specified)
Symbol	Parameter		Test Conditions		Min.	Typ.	Max.	Unit
VO	Output Voltage	IO = 0 mA	Tj = 25 oC		2.821	2.85	2.879	V
VO	Output Voltage (Note 1)	IO = 0 to 1.5 A		VIN = 4.5 to 30 V	2.793	2.85	2.907	V
VO	Line Regulation	VIN = 4.5 to 18 V		IO = 0 mA Tj = 25 oC		0.2	6	mV
VO	Line Regulation	VIN = 4.5 to 18 V		IO = 0 mA		0.5	6	mV
VO	Load Regulation	IO = 0 to 1.5 A		Tj = 25 oC		1	12	mV
VO	Load Regulation	IO = 0 to 1.5 A				2	20	mV
Vd	Dropout Voltage	IO = 1.5 A				1.3	1.5	V
Id	Quiescent Current	VIN ≤ 30 V				5	10	mA
ISC	Short Circuit Current	VIN - VO = 5V			1.5	2		A
		VIN - VO = 25V			0.05	0.2
	Thermal Regulation	Ta = 25 oC	30ms Pulse			0.01	0.04	%/W
SVR	Supply Voltage Rejection	IO = 1.5 A	f = 120 Hz CO = 25μF		60	80		dB
		VIN = 7.85 ± 3V
eN	Output Noise Voltage	B = 10Hz to 10KHz Ta = 25 oC				0.003		%
S	Temperature Stability					0.5		%
S	Long Term Stability	1000 hrs Ta = 125 oC				0.5		%

Note1: See short-circuit curve for available output current at fixed dropout.

ELECTRICAL CHARACTERISTICS FOR LD1086#33 (refer to the test circuits,
Tj = -40 to 125 oC, VIN = 6.3 V,		CIN = CO = 10 μF unless otherwise specified)
Symbol	Parameter		Test Conditions		Min.	Typ.	Max.	Unit
VO	Output Voltage	IO = 0 mA	Tj = 25 oC		3.267	3.3	3.333	V
VO	Output Voltage (Note 1)	IO = 0 to 1.5 A		VIN = 4.9 to 30 V	3.234	3.3	3.366	V
VO	Line Regulation	VIN = 4.9 to 18 V		IO = 0 mA Tj = 25 oC		0.5	10	mV
VO	Line Regulation	VIN = 4.9 to 18 V		IO = 0 mA		1	10	mV
VO	Load Regulation	IO = 0 to 1.5 A		Tj = 25 oC		3	15	mV
VO	Load Regulation	IO = 0 to 1.5 A				7	25	mV
Vd	Dropout Voltage	IO = 1.5 A				1.3	1.5	V
Id	Quiescent Current	VIN ≤ 30 V				5	10	mA
ISC	Short Circuit Current	VIN - VO = 5V			1.5	2		A
		VIN - VO = 25V			0.05	0.2
	Thermal Regulation	Ta = 25 oC	30ms Pulse			0.01	0.04	%/W
SVR	Supply Voltage Rejection	IO = 1.5 A	f = 120 Hz CO = 25μF		60	79		dB
		VIN = 8.3 ± 3V
eN	Output Noise Voltage	B = 10Hz to 10KHz Ta = 25 oC				0.003		%
S	Temperature Stability					0.5		%
S	Long Term Stability	1000 hrs Ta = 125 oC				0.5		%

Note1: See short-circuit curve for available output current at fixed dropout.

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LD1086 SERIES

ELECTRICAL CHARACTERISTICS FOR LD1086#36 (refer to the test circuits,
Tj = -40 to 125 oC, VIN = 6.6 V,		CIN = CO = 10 μF unless otherwise specified)
Symbol	Parameter		Test Conditions		Min.	Typ.	Max.	Unit
VO	Output Voltage	IO = 0 mA	Tj = 25 oC		3.564	3.6	3.636	V
VO	Output Voltage (Note 1)	IO = 0 to 1.5 A		VIN = 5.2 to 30 V	3.528	3.6	3.672	V
VO	Line Regulation	VIN = 5.2 to 18 V		IO = 0 mA Tj = 25 oC		0.5	10	mV
VO	Line Regulation	VIN = 5.2 to 18 V		IO = 0 mA		1	10	mV
VO	Load Regulation	IO = 0 to 1.5 A		Tj = 25 oC		3	15	mV
VO	Load Regulation	IO = 0 to 1.5 A				7	25	mV
Vd	Dropout Voltage	IO = 1.5 A				1.3	1.5	V
Id	Quiescent Current	VIN ≤ 30 V				5	10	mA
ISC	Short Circuit Current	VIN - VO = 5V			1.5	2		A
		VIN - VO = 25V			0.05	0.2
	Thermal Regulation	Ta = 25 oC	30ms Pulse			0.01	0.04	%/W
SVR	Supply Voltage Rejection	IO = 1.5 A	f = 120 Hz CO = 25μF		60	78		dB
		VIN = 8.6 ± 3V
eN	Output Noise Voltage	B = 10Hz to 10KHz Ta = 25 oC				0.003		%
S	Temperature Stability					0.5		%
S	Long Term Stability	1000 hrs Ta = 125 oC				0.5		%

Note1: See short-circuit curve for available output current at fixed dropout.

ELECTRICAL CHARACTERISTICS FOR LD1086#50 (refer to the test circuits, Tj = -40 to 125 oC, VIN = 8 V, CIN = CO = 10 μF unless otherwise specified)

Symbol	Parameter		Test Conditions		Min.	Typ.	Max.	Unit
VO	Output Voltage	IO = 0 mA	Tj = 25 oC		4.95	5	5.05	V
VO	Output Voltage (Note 1)	IO = 0 to 1.5 A		VIN = 6.6 to 30 V	4.9	5	5.1	V
VO	Line Regulation	VIN = 6.6 to 20 V		IO = 0 mA Tj = 25 oC		0.5	10	mV
VO	Line Regulation	VIN = 6.6 to 20 V		IO = 0 mA		1	10	mV
VO	Load Regulation	IO = 0 to 1.5 A		Tj = 25 oC		5	20	mV
VO	Load Regulation	IO = 0 to 1.5 A				10	35	mV
Vd	Dropout Voltage	IO = 1.5 A				1.3	1.5	V
Id	Quiescent Current	VIN ≤ 30 V				5	10	mA
ISC	Short Circuit Current	VIN - VO = 5V			1.5	2		A
		VIN - VO = 25V			0.05	0.2
	Thermal Regulation	Ta = 25 oC	30ms Pulse			0.01	0.04	%/W
SVR	Supply Voltage Rejection	IO = 1.5 A	f = 120 Hz CO = 25μF		60	75		dB
		VIN = 10 ± 3V
eN	Output Noise Voltage	B = 10Hz to 10KHz Ta = 25 oC				0.003		%
S	Temperature Stability					0.5		%
S	Long Term Stability	1000 hrs Ta = 125 oC				0.5		%

Note1: See short-circuit curve for available output current at fixed dropout.

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LD1086 SERIES

ELECTRICAL CHARACTERISTICS FOR LD1086#80 (refer to the test circuits, Tj = -40 to 125 oC, VIN = 11 V, CIN = CO = 10 μF unless otherwise specified)

Symbol	Parameter		Test Conditions		Min.	Typ.	Max.	Unit
VO	Output Voltage	IO = 0 mA	Tj = 25 oC		7.92	8	8.08	V
VO	Output Voltage (Note 1)	IO = 0 to 1.5 A		VIN =9.8 to 30 V	7.84	8	8.16	V
VO	Line Regulation	VIN = 9.8 to 20 V		IO = 0 mA Tj = 25 oC		1	18	mV
VO	Line Regulation	VIN = 9.8 to 20 V		IO = 0 mA		2	18	mV
VO	Load Regulation	IO = 0 to 1.5 A		Tj = 25 oC		8	30	mV
VO	Load Regulation	IO = 0 to 1.5 A				12	60	mV
Vd	Dropout Voltage	IO = 1.5 A				1.3	1.5	V
Id	Quiescent Current	VIN ≤ 30 V				5	10	mA
ISC	Short Circuit Current	VIN - VO = 5V			1.5	2		A
		VIN - VO = 25V			0.05	0.2
	Thermal Regulation	Ta = 25 oC	30ms Pulse			0.01	0.04	%/W
SVR	Supply Voltage Rejection	IO = 1.5 A	f = 120 Hz CO = 25μF		54	71		dB
		VIN = 13 ± 3V
eN	Output Noise Voltage	B = 10Hz to 10KHz Ta = 25 oC				0.003		%
S	Temperature Stability					0.5		%
S	Long Term Stability	1000 hrs Ta = 125 oC				0.5		%

Note1: See short-circuit curve for available output current at fixed dropout.

ELECTRICAL CHARACTERISTICS FOR LD1086#90 (refer to the test circuits, Tj = -40 to 125 oC, VIN = 12 V, CIN = CO = 10 μF unless otherwise specified)

Symbol	Parameter		Test Conditions		Min.	Typ.	Max.	Unit
VO	Output Voltage	IO = 0 mA	Tj = 25 oC		8.91	9	9.09	V
VO	Output Voltage (Note 1)	IO = 0 to 1.5 A		VIN = 11 to 30 V	8.82	9	9.18	V
VO	Line Regulation	VIN = 11 to 20 V		IO = 0 mA Tj = 25 oC		1	20	mV
VO	Line Regulation	VIN = 11 to 20 V		IO = 0 mA		2	20	mV
VO	Load Regulation	IO = 0 to 1.5 A		Tj = 25 oC		8	30	mV
VO	Load Regulation	IO = 0 to 1.5 A				12	60	mV
Vd	Dropout Voltage	IO = 1.5 A				1.3	1.5	V
Id	Quiescent Current	VIN ≤ 30 V				5	10	mA
ISC	Short Circuit Current	VIN - VO = 5V			1.5	2		A
		VIN - VO = 25V			0.05	0.2
	Thermal Regulation	Ta = 25 oC	30ms Pulse			0.01	0.04	%/W
SVR	Supply Voltage Rejection	IO = 1.5 A	f = 120 Hz CO = 25μF		54	70		dB
		VIN = 14 ± 3V
eN	Output Noise Voltage	B = 10Hz to 10KHz Ta = 25 oC				0.003		%
S	Temperature Stability					0.5		%
S	Long Term Stability	1000 hrs Ta = 125 oC				0.5		%

Note1: See short-circuit curve for available output current at fixed dropout.

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