Datasheet LTC3542 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | 500mA, 2.25MHz Synchronous Step-Down DC/DC Converter |
| 页数 / 页 | 16 / 2 — ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION. … |
| 文件格式/大小 | PDF / 222 Kb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
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LTC3542
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) ... –0.3V to 6V Junction Temperature (Note 7) ... 125°C VFB, RUN Voltages ...–0.3V to VIN Storage Temperature Range ... –65°C to 150°C MODE Voltage ..–0.3V to (VIN + 0.3V) Lead Temperature (Soldering, 10 sec) SW Voltage ..–0.3V to (VIN + 0.3V) TSOT-23 .. 300°C Operating Temperature Range (Note 2) Refl ow Peak Body Temperature (DFN) .. 260°C LTC3542E .. –40°C to 85°C LTC3542I ... –40°C to 125°C
PIN CONFIGURATION
TOP VIEW TOP VIEW V 1 6 RUN FB V 6 SW MODE/ IN 1 VIN 2 7 5 SYNC GND 2 5 MODE/SYNC GND 3 4 SW VFB 3 4 RUN DC PACKAGE S6 PACKAGE 6-LEAD (2mm × 2mm) PLASTIC DFN 6-LEAD PLASTIC TSOT-23 T TJMAX = 125°C, θJA = 215°C/W JMAX = 125°C, θJA = 102°C/W, θJC = 20°C/W (SOLDERED TO A 4-LAYER BOARD, NOTE 3) EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3542EDC#PBF LTC3542EDC#TRPBF LCFR 6-Lead (2mm × 2mm) Plastic DFN –40°C to 85°C LTC3542IDC#PBF LTC3542IDC#TRPBF LCFR 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LTC3542ES6#PBF LTC3542ES6#TRPBF LCFS 6-Lead Plastic TSOT-23 –40°C to 85°C LTC3542IS6#PBF LTC3542IS6#TRPBF LCFS 6-Lead Plastic TSOT-23 –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. Consult LTC Marketing for information on non-standard lead based fi nish parts. 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
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 3.6V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Voltage Range ● 2.5 5.5 V IFB Feedback Input Current ±30 nA VFB Feedback Voltage (Note 4) ● 0.588 0.6 0.612 V ΔVLINE_REG Reference Voltage Line Regulation (Note 4) VIN = 2.5V to 5.5V 0.04 0.2 %/V ΔVLOAD_REG Output Voltage Load Regulation (Note 4) ILOAD = 100mA to 500mA 0.02 0.2 % 3542fa 2
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) ... –0.3V to 6V Junction Temperature (Note 7) ... 125°C VFB, RUN Voltages ...–0.3V to VIN Storage Temperature Range ... –65°C to 150°C MODE Voltage ..–0.3V to (VIN + 0.3V) Lead Temperature (Soldering, 10 sec) SW Voltage ..–0.3V to (VIN + 0.3V) TSOT-23 .. 300°C Operating Temperature Range (Note 2) Refl ow Peak Body Temperature (DFN) .. 260°C LTC3542E .. –40°C to 85°C LTC3542I ... –40°C to 125°C
PIN CONFIGURATION
TOP VIEW TOP VIEW V 1 6 RUN FB V 6 SW MODE/ IN 1 VIN 2 7 5 SYNC GND 2 5 MODE/SYNC GND 3 4 SW VFB 3 4 RUN DC PACKAGE S6 PACKAGE 6-LEAD (2mm × 2mm) PLASTIC DFN 6-LEAD PLASTIC TSOT-23 T TJMAX = 125°C, θJA = 215°C/W JMAX = 125°C, θJA = 102°C/W, θJC = 20°C/W (SOLDERED TO A 4-LAYER BOARD, NOTE 3) EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3542EDC#PBF LTC3542EDC#TRPBF LCFR 6-Lead (2mm × 2mm) Plastic DFN –40°C to 85°C LTC3542IDC#PBF LTC3542IDC#TRPBF LCFR 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LTC3542ES6#PBF LTC3542ES6#TRPBF LCFS 6-Lead Plastic TSOT-23 –40°C to 85°C LTC3542IS6#PBF LTC3542IS6#TRPBF LCFS 6-Lead Plastic TSOT-23 –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. Consult LTC Marketing for information on non-standard lead based fi nish parts. 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
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 3.6V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Voltage Range ● 2.5 5.5 V IFB Feedback Input Current ±30 nA VFB Feedback Voltage (Note 4) ● 0.588 0.6 0.612 V ΔVLINE_REG Reference Voltage Line Regulation (Note 4) VIN = 2.5V to 5.5V 0.04 0.2 %/V ΔVLOAD_REG Output Voltage Load Regulation (Note 4) ILOAD = 100mA to 500mA 0.02 0.2 % 3542fa 2