Datasheet LT3510 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Monolithic Dual Tracking 2A Step-Down Switching Regulator |
| 页数 / 页 | 30 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| 文件格式/大小 | PDF / 358 Kb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
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LT3510
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
V TOP VIEW IN1/2, SHDN, PG1/2 .. 25V/–0.3V SW1/2 ..V V 1 IN1/2 IN1 20 BST1 BST1/2 ... 35V/–0.3V SW1 2 19 SS/TRACK1 BST1/2 Pins Above SW1/2 ..25V IND1 3 18 VC1 IND1/2 ...±4A V 4 OUT1 17 FB1 V PG1 5 16 RT/SYNC OUT1/2 .. VIN1/2/–0.3V 21 PG2 6 15 SHDN FB1/2, SS1/2, RT/SYNC ..5.5V V 7 OUT2 14 FB2 VC1/2 ..±1mA IND2 8 13 VC2 Operating Junction Temperature Range SW2 9 12 SS/TRACK2 LT3510EFE (Notes 2, 8) ... –40°C to 125°C V 10 IN2 11 BST2 LT3510IFE (Notes 2, 8) .. –40°C to 125°C FE PACKAGE Storage Temperature Range ... –65°C to 150°C 20-LEAD PLASTIC TSSOP Lead Temperature (Soldering, 10 sec) .. 300°C TJMAX = 125°C, θJA = 45°C/W, θJC(PAD) = 10°C/W EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3510EFE#PBF LT3510EFE#TRPBF LT3510FE 20-Lead TSSOP –40°C to 125°C LT3510IFE#PBF LT3510IFE#TRPBF LT3510FE 20-Lead TSSOP –40°C to 125°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3510EFE LT3510EFE#TR LT3510FE 20-Lead TSSOP –40°C to 125°C LT3510IFE LT3510IFE#TR LT3510FE 20-Lead TSSOP –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TJ = 25°C. VVIN1/2 = 15V, VBST1/2 = open, VRT/SYNC = 2V, VVOUT1/2 = open, unless otherwise specifi ed. PARAMETER CONDITIONS MIN TYP MAX UNITS
SHDN Threshold VOUT1/2 = 0V, RT/SYNC = 133k l 1.23 1.28 1.37 V SHDN Input Current VSHDN = 1.375V 7 10 13 μA VSHDN = 1.225V 2 3 5 μA Minimum Input Voltage Ch 1 (Note 3) VFB1/2 = 0V, VVOUT1/2 = 0V, VIND1/2 = 0V, RT/SYNC = 133k 2.8 3 V Minimum Input Voltage Ch 2 VFB1/2 = 0V, VVOUT1/2 = 0V, VIND1/2 = 0V 2.8 3 V Supply Shutdown Current Ch 1 VSHDN = 0V l 9 30 μA Supply Shutdown Current Ch 2 VSHDN = 0V 0 5 μA Supply Quiescent Current Ch 1 VFB1/2 = 0.9V 3.5 5 mA Supply Quiescent Current Ch 2 VFB1/2 = 0.9V 200 500 μA Feedback Voltage Ch 1/2 VVC1/2 = 1V l 0.784 0.8 0.816 V 3510fe 2 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY RELATED PARTS
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
V TOP VIEW IN1/2, SHDN, PG1/2 .. 25V/–0.3V SW1/2 ..V V 1 IN1/2 IN1 20 BST1 BST1/2 ... 35V/–0.3V SW1 2 19 SS/TRACK1 BST1/2 Pins Above SW1/2 ..25V IND1 3 18 VC1 IND1/2 ...±4A V 4 OUT1 17 FB1 V PG1 5 16 RT/SYNC OUT1/2 .. VIN1/2/–0.3V 21 PG2 6 15 SHDN FB1/2, SS1/2, RT/SYNC ..5.5V V 7 OUT2 14 FB2 VC1/2 ..±1mA IND2 8 13 VC2 Operating Junction Temperature Range SW2 9 12 SS/TRACK2 LT3510EFE (Notes 2, 8) ... –40°C to 125°C V 10 IN2 11 BST2 LT3510IFE (Notes 2, 8) .. –40°C to 125°C FE PACKAGE Storage Temperature Range ... –65°C to 150°C 20-LEAD PLASTIC TSSOP Lead Temperature (Soldering, 10 sec) .. 300°C TJMAX = 125°C, θJA = 45°C/W, θJC(PAD) = 10°C/W EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3510EFE#PBF LT3510EFE#TRPBF LT3510FE 20-Lead TSSOP –40°C to 125°C LT3510IFE#PBF LT3510IFE#TRPBF LT3510FE 20-Lead TSSOP –40°C to 125°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3510EFE LT3510EFE#TR LT3510FE 20-Lead TSSOP –40°C to 125°C LT3510IFE LT3510IFE#TR LT3510FE 20-Lead TSSOP –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TJ = 25°C. VVIN1/2 = 15V, VBST1/2 = open, VRT/SYNC = 2V, VVOUT1/2 = open, unless otherwise specifi ed. PARAMETER CONDITIONS MIN TYP MAX UNITS
SHDN Threshold VOUT1/2 = 0V, RT/SYNC = 133k l 1.23 1.28 1.37 V SHDN Input Current VSHDN = 1.375V 7 10 13 μA VSHDN = 1.225V 2 3 5 μA Minimum Input Voltage Ch 1 (Note 3) VFB1/2 = 0V, VVOUT1/2 = 0V, VIND1/2 = 0V, RT/SYNC = 133k 2.8 3 V Minimum Input Voltage Ch 2 VFB1/2 = 0V, VVOUT1/2 = 0V, VIND1/2 = 0V 2.8 3 V Supply Shutdown Current Ch 1 VSHDN = 0V l 9 30 μA Supply Shutdown Current Ch 2 VSHDN = 0V 0 5 μA Supply Quiescent Current Ch 1 VFB1/2 = 0.9V 3.5 5 mA Supply Quiescent Current Ch 2 VFB1/2 = 0.9V 200 500 μA Feedback Voltage Ch 1/2 VVC1/2 = 1V l 0.784 0.8 0.816 V 3510fe 2 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY RELATED PARTS