ST LD1117 User Manual

LD1117

SERIES

LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS

■LOW DROPOUT VOLTAGE (1V TYP.)

■2.85V DEVICE PERFORMANCES ARE SUITABLE FOR SCSI-2 ACTIVE TERMINATION

■OUTPUT CURRENT UP TO 800 mA

■FIXED OUTPUT VOLTAGE OF: 1.2V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V, 5.0V

■ADJUSTABLE VERSION AVAILABILITY (Vrel=1.25V)

■INTERNAL CURRENT AND THERMAL LIMIT

■AVAILABLE IN ± 1% (AT 25°C) AND 2% IN FULL TEMPERATURE RANGE

■SUPPLY VOLTAGE REJECTION: 75dB (TYP.)

DESCRIPTION

The LD1117 is a LOW DROP Voltage Regulator able to provide up to 800mA of Output Current, available even in adjustable version (Vref=1.25V). Concerning fixed versions, are offered the following Output Voltages: 1.2V,1.8V,2.5V,2.85V, 3.0V 3.3V and 5.0V. The 2.85V type is ideal for SCSI-2 lines active termination. The device is supplied in: SOT-223, DPAK, SO-8, TO-220 and TO-220FM. The SOT-223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN

Figure 1: Block Diagram

TO-220FM		TO-220
DPAK	SOT-223	SO-8

pass transistor. In fact in this case, unlike than PNP one, the Quiescent Current flows mostly into the load. Only a very common 10µF minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1% at 25°C. The ADJUSTABLE LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of Drop and Tolerance.

October 2004	Rev. 16
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Figure 2: Pin Connection (top view)

SOT-223	SO-8
TO-220FM	TO-220
	DPAK

NOTE: The TAB is connected to the VOUT.

Table 1: Order Codes

SOT-223		SO-8	DPAK	TO-220	TO-220FM	OUTPUT
						VOLTAGE
LD1117S12		LD1117D12 (*)	LD1117DT12	LD1117V12 (*)	LD1117F12 (*)	1.2 V
LD1117S12C (*)		LD1117D12C (*)	LD1117DT12C	LD1117V12C (*)	LD1117F12C (*)	1.2 V
LD1117S18		LD1117D18	LD1117DT18	LD1117V18	LD1117F18	1.8 V
LD1117S18C		LD1117D18C	LD1117DT18C	LD1117V18C	LD1117F18C	1.8 V
LD1117S25		LD1117D25	LD1117DT25	LD1117V25	LD1117F25	2.5 V
LD1117S25C		LD1117D25C	LD1117DT25C	LD1117V25C	LD1117F25C	2.5 V
LD1117S28		LD1117D28	LD1117DT28	LD1117V28	LD1117F28	2.85 V
LD1117S30		LD1117D30	LD1117DT30	LD1117V30	LD1117F30	3 V
LD1117S30C		LD1117D30C	LD1117DT30C	LD1117V30C	LD1117F30C	3 V
LD1117S33		LD1117D33	LD1117DT33	LD1117V33	LD1117F33	3.3 V
LD1117S33C		LD1117D33C	LD1117DT33C	LD1117V33C	LD1117F33C	3.3 V
LD1117S50		LD1117D50	LD1117DT50	LD1117V50	LD1117F50	5 V
LD1117S50C		LD1117D50C	LD1117DT50C	LD1117V50C	LD1117F50C	5 V
LD1117S		LD1117D	LD1117DT	LD1117V	LD1117F	ADJ FROM 1.25
						TO 15V
LD1117SC		LD1117DC	LD1117DTC	LD1117VC	LD1117FC	ADJ FROM 1.25
						TO 15V
(*) Available on request

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Table 2: Absolute Maximum Ratings

Symbol	Parameter		Value	Unit
VIN	DC Input Voltage		15	V
Ptot	Power Dissipation		12	W
Tstg	Storage Temperature Range		-40 to +150	°C
Top	Operating Junction Temperature Range	for C Version	-40 to +125	°C
		for standard Version	0 to +125	°C

Absolute Maximum Ratings are those values 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 definitively damage the device.

Table 3: Thermal Data

Symbol	Parameter	SOT-223	SO-8	DPAK	TO-220	TO-220FM	Unit
Rthj-case	Thermal Resistance Junction-case	15	20	8	3	4	°C/W
Rthj-amb	Thermal Resistance Junction-ambient				50	60	°C/W

Figure 3: Application Circuit (FOR 1.2 V)

Figure 4: Application Circuit (FOR OTHER FIXED OUTPUT VOLTAGES)

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Table 4: Electrical Characteristics Of LD1117#12 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, R = 120 Ω between GND and OUT pins, unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
VO	Output Voltage	Vin = 3.2 V IO = 10 mA		TJ = 25°C	1.188	1.20	1.212	V
VO	Reference Voltage	IO = 10 to 800 mA Vin - VO= 1.4 to 10 V			1.140	1.20	1.260	V
∆ VO	Line Regulation	Vin - VO = 1.5 to 13.75 V		IO = 10 mA		0.035	0.2	%
∆ VO	Load Regulation	Vin - VO = 3 V	IO = 10 to 800 mA			0.1	0.4	%
∆ VO	Temperature Stability					0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C				0.3		%
Vin	Operating Input Voltage						15	V
Iadj	Adjustment Pin Current	Vin ≤ 15 V				60	120	µA
∆ Iadj	Adjustment Pin Current	Vin - VO = 1.4 to 10 V				1	5	µA
	Change	IO = 10 to 800 mA
IO(min)	Minimum Load Current	Vin = 15 V				2	5	mA
IO	Output Current	Vin - VO = 5 V	TJ = 25°C		800	950	1300	mA
eN	Output Noise (%VO)	B =10Hz to 10KHz	TJ = 25°C			0.003		%
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz		TJ = 25°C	60	75		dB
		Vin - VO = 3 V	Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA				1	1.1	V
		IO = 500 mA				1.05	1.15
		IO = 800 mA				1.10	1.2
	Thermal Regulation	Ta = 25°C 30ms Pulse				0.01	0.1	%/W

Table 5: Electrical Characteristics Of LD1117#18 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
VO	Output Voltage	Vin = 3.8 V IO = 10 mA		TJ = 25°C	1.78	1.8	1.82	V
VO	Output Voltage	IO = 0 to 800 mA	Vin = 3.3 to 8 V		1.76		1.84	V
∆ VO	Line Regulation	Vin = 3.3 to 8 V	IO = 0 mA			1	6	mV
∆ VO	Load Regulation	Vin = 3.3 V	IO = 0 to 800 mA			1	10	mV
∆ VO	Temperature Stability					0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C				0.3		%
Vin	Operating Input Voltage	IO = 100 mA					10	V
Id	Quiescent Current	Vin ≤ 8 V				5	10	mA
IO	Output Current	Vin = 6.8 V TJ = 25°C			800	950	1300	mA
eN	Output Noise Voltage	B =10Hz to 10KHz	TJ = 25°C			100		V
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz		TJ = 25°C	60	75		dB
		Vin = 5.5 V Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA				1	1.1	V
		IO = 500 mA				1.05	1.15
		IO = 800 mA				1.10	1.2
	Thermal Regulation	Ta = 25°C 30ms Pulse				0.01	0.1	%/W

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Table 6: Electrical Characteristics Of LD1117#25 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
VO	Output Voltage	Vin = 4.5 V IO = 10 mA		TJ = 25°C	2.475	2.5	2.525	V
VO	Output Voltage	IO = 0 to 800 mA	Vin = 3.9 to 10 V		2.45		2.55	V
∆ VO	Line Regulation	Vin = 3.9 to 10 V	IO = 0 mA			1	6	mV
∆ VO	Load Regulation	Vin = 3.9 V	IO = 0 to 800 mA			1	10	mV
∆ VO	Temperature Stability					0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C				0.3		%
Vin	Operating Input Voltage	IO = 100 mA					15	V
Id	Quiescent Current	Vin ≤ 10 V				5	10	mA
IO	Output Current	Vin = 7.5 V TJ = 25°C			800	950	1300	mA
eN	Output Noise Voltage	B =10Hz to 10KHz	TJ = 25°C			100		V
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz		TJ = 25°C	60	75		dB
		Vin = 5.5 V Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA				1	1.1	V
		IO = 500 mA				1.05	1.15
		IO = 800 mA				1.10	1.2
	Thermal Regulation	Ta = 25°C 30ms Pulse				0.01	0.1	%/W

Table 7: Electrical Characteristics Of LD1117#28 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
VO	Output Voltage	Vin = 4.85 VIO = 10 mA		TJ = 25°C	2.82	2.85	2.88	V
VO	Output Voltage	IO = 0 to 800 mA	Vin = 4.25 to 10 V		2.79		2.91	V
∆ VO	Line Regulation	Vin = 4.25 to 10 V	IO = 0 mA			1	6	mV
∆ VO	Load Regulation	Vin = 4.25 V	IO = 0 to 800 mA			1	10	mV
∆ VO	Temperature Stability					0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C				0.3		%
Vin	Operating Input Voltage	IO = 100 mA					15	V
Id	Quiescent Current	Vin ≤ 10 V				5	10	mA
IO	Output Current	Vin = 7.85 VTJ = 25°C			800	950	1300	mA
eN	Output Noise Voltage	B =10Hz to 10KHz	TJ = 25°C			100		V
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz		TJ = 25°C	60	75		dB
		Vin = 5.85 VVripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA				1	1.1	V
		IO = 500 mA				1.05	1.15
		IO = 800 mA				1.10	1.2
	Thermal Regulation	Ta = 25°C 30ms Pulse				0.01	0.1	%/W

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Table 8: Electrical Characteristics Of LD1117#30 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF unless otherwise specified)

Symbol	Parameter		Test Conditions			Min.	Typ.	Max.	Unit
VO	Output Voltage	Vin = 5 V	IO = 10 mA		TJ = 25°C	2.97	3	3.03	V
VO	Output Voltage	IO = 0 to 800 mA		Vin = 4.5 to 10 V		2.94		3.06	V
∆ VO	Line Regulation	Vin = 4.5 to 12 V		IO = 0 mA			1	6	mV
∆ VO	Load Regulation	Vin = 4.5 V		IO = 0 to 800 mA			1	10	mV
∆ VO	Temperature Stability						0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C					0.3		%
Vin	Operating Input Voltage	IO = 100 mA						15	V
Id	Quiescent Current	Vin ≤ 12 V					5	10	mA
IO	Output Current	Vin = 8 V	TJ = 25°C			800	950	1300	mA
eN	Output Noise Voltage	B =10Hz to 10KHz		TJ = 25°C			100		V
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz			TJ = 25°C	60	75		dB
		Vin = 6 V Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA					1	1.1	V
		IO = 500 mA					1.05	1.15
		IO = 800 mA					1.10	1.2
	Thermal Regulation	Ta = 25°C	30ms Pulse				0.01	0.1	%/W

Table 9: Electrical Characteristics Of LD1117#33 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
VO	Output Voltage	Vin = 5.3 V IO = 10 mA		TJ = 25°C	3.267	3.3	3.333	V
VO	Output Voltage	IO = 0 to 800 mA	Vin = 4.75 to 10 V		3.235		3.365	V
∆ VO	Line Regulation	Vin = 4.75 to 15 V	IO = 0 mA			1	6	mV
∆ VO	Load Regulation	Vin = 4.75 V	IO = 0 to 800 mA			1	10	mV
∆ VO	Temperature Stability					0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C				0.3		%
Vin	Operating Input Voltage	IO = 100 mA					15	V
Id	Quiescent Current	Vin ≤ 15 V				5	10	mA
IO	Output Current	Vin = 8.3 V TJ = 25°C			800	950	1300	mA
eN	Output Noise Voltage	B =10Hz to 10KHz	TJ = 25°C			100		V
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz		TJ = 25°C	60	75		dB
		Vin = 6.3 V Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA				1	1.1	V
		IO = 500 mA				1.05	1.15
		IO = 800 mA				1.10	1.2
	Thermal Regulation	Ta = 25°C 30ms Pulse				0.01	0.1	%/W

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Table 10: Electrical Characteristics Of LD1117#50 (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF unless otherwise specified)

Symbol	Parameter		Test Conditions			Min.	Typ.	Max.	Unit
VO	Output Voltage	Vin = 7 V	IO = 10 mA		TJ = 25°C	4.95	5	5.05	V
VO	Output Voltage	IO = 0 to 800 mA		Vin = 6.5 to 15 V		4.9		5.1	V
∆ VO	Line Regulation	Vin = 6.5 to 15 V		IO = 0 mA			1	10	mV
∆ VO	Load Regulation	Vin = 6.5 V		IO = 0 to 800 mA			1	15	mV
∆ VO	Temperature Stability						0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C					0.3		%
Vin	Operating Input Voltage	IO = 100 mA						15	V
Id	Quiescent Current	Vin ≤ 15 V					5	10	mA
IO	Output Current	Vin = 10 V	TJ = 25°C			800	950	1300	mA
eN	Output Noise Voltage	B =10Hz to 10KHz		TJ = 25°C			100		V
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz			TJ = 25°C	60	75		dB
		Vin = 8 V Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA					1	1.1	V
		IO = 500 mA					1.05	1.15
		IO = 800 mA					1.10	1.2
	Thermal Regulation	Ta = 25°C	30ms Pulse				0.01	0.1	%/W

Table 11: Electrical Characteristics Of LD1117 (ADJUSTABLE) (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
Vref	Reference Voltage	Vin - VO = 2 V IO = 10 mA		TJ =	1.238	1.25	1.262	V
		25°C
Vref	Reference Voltage	IO = 10 to 800 mA	Vin - VO= 1.4 to 10		1.225		1.275	V
		V
∆ VO	Line Regulation	Vin - VO = 1.5 to 13.75 V		IO = 10 mA		0.035	0.2	%
∆ VO	Load Regulation	Vin - VO = 3 V	IO = 10 to 800 mA			0.1	0.4	%
∆ VO	Temperature Stability					0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C				0.3		%
Vin	Operating Input Voltage						15	V
Iadj	Adjustment Pin Current	Vin ≤ 15 V				60	120	µA
∆ Iadj	Adjustment Pin Current	Vin - VO = 1.4 to 10 V				1	5	µA
	Change	IO = 10 to 800 mA
IO(min)	Minimum Load Current	Vin = 15 V				2	5	mA
IO	Output Current	Vin - VO = 5 V	TJ = 25°C		800	950	1300	mA
eN	Output Noise (%VO)	B =10Hz to 10KHz	TJ = 25°C			0.003		%
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz		TJ = 25°C	60	75		dB
		Vin - VO = 3 V	Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA				1	1.1	V
		IO = 500 mA				1.05	1.15
		IO = 800 mA				1.10	1.2
	Thermal Regulation	Ta = 25°C 30ms Pulse				0.01	0.1	%/W

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Table 12: Electrical Characteristics Of LD1117#12C (refer to the test circuits, TJ = 0 to 125°C, CO = 10 µF, R = 120 Ω between GND and OUT pins, unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
Vref	Reference Voltage	Vin - VO= 2V IO = 10 mA		TJ = 25°C	1.176	1.20	1.224	V
Vref	Reference Voltage	IO = 10 to 800 mA	Vin - VO= 1.4 to 10		1.120	1.20	1.280	V
		V
∆ VO	Line Regulation	Vin - VO = 1.5 to 13.75 V		IO = 10 mA			1	%
∆ VO	Load Regulation	Vin - VO = 3 V	IO = 10 to 800 mA				1	%
∆ VO	Temperature Stability					0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C				0.3		%
Vin	Operating Input Voltage						15	V
Iadj	Adjustment Pin Current	Vin ≤ 15 V				60	120	µA
∆ Iadj	Adjustment Pin Current	Vin - VO = 1.4 to 10 V				1	5	µA
	Change	IO = 10 to 800 mA
IO(min)	Minimum Load Current	Vin = 15 V				2	5	mA
IO	Output Current	Vin - VO = 5 V	TJ = 25°C		800	950	1300	mA
eN	Output Noise (%VO)	B =10Hz to 10KHz	TJ = 25°C			0.003		%
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz		TJ = 25°C	60	75		dB
		Vin - VO = 3 V	Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA	TJ = 0 to 125°C			1	1.1	V
		IO = 500 mA	TJ = 0 to 125°C			1.05	1.2
		IO = 800 mA	TJ = 0 to 125°C			1.10	1.3
	Thermal Regulation	Ta = 25°C 30ms Pulse				0.01	0.1	%/W

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Table 13: Electrical Characteristics Of LD1117#18C (refer to the test circuits, TJ = -40 to 125°C, CO = 10 µF unless otherwise specified)

Symbol	Parameter	Test Conditions			Min.	Typ.	Max.	Unit
VO	Output Voltage	Vin = 3.8 V IO = 10 mA		TJ = 25°C	1.76	1.8	1.84	V
VO	Output Voltage	IO = 0 to 800 mA	Vin = 3.9 to 10 V		1.73		1.87	V
∆ VO	Line Regulation	Vin = 3.3 to 8 V	IO = 0 mA			1	30	mV
∆ VO	Load Regulation	Vin = 3.3 V	IO = 0 to 800 mA			1	30	mV
∆ VO	Temperature Stability					0.5		%
∆ VO	Long Term Stability	1000 hrs, TJ = 125°C				0.3		%
Vin	Operating Input Voltage	IO = 100 mA					10	V
Id	Quiescent Current	Vin ≤ 8 V				5	10	mA
IO	Output Current	Vin = 6.8 V TJ = 25°C			800	950	1300	mA
eN	Output Noise Voltage	B =10Hz to 10KHz	TJ = 25°C			100		V
SVR	Supply Voltage Rejection	IO = 40 mA f = 120Hz		TJ = 25°C	60	75		dB
		Vin = 5.5 V Vripple = 1 VPP
Vd	Dropout Voltage	IO = 100 mA	TJ = 0 to 125°C			1	1.1	V
		IO = 500 mA	TJ = 0 to 125°C			1.05	1.15
		IO = 800 mA	TJ = 0 to 125°C			1.10	1.2
Vd	Dropout Voltage	IO = 100 mA					1.1	V
		IO = 500 mA					1.2
		IO = 800 mA					1.3
	Thermal Regulation	Ta = 25°C 30ms Pulse				0.01	0.1	%/W

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