Datasheet LTC3543 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | 600mA Synchronous Step Down Buck Regulator with PLL, Soft-Start and Spread Spectrum |
| 页数 / 页 | 20 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| 文件格式/大小 | PDF / 342 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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LTC3543
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VIN Voltage ... –0.3V to 6V TOP VIEW RUN, VFB, MODE, CAP Voltages ...–0.3V to VIN SW 1 6 V SW Voltage ..–0.3V to (V IN IN + 0.3V) Operating Temperature Range (Note 2).. –40°C to 85°C CAP 2 7 5 RUN Junction Temperature (Note 3) ... 125°C MODE 3 4 VFB Storage Temperature Range ... –65°C to 125°C DCB PACKAGE 6-LEAD (2mm s 3mm) PLASTIC DFN TJMAX = 125°C, θJA = 64°C/W 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
LTC3543EDCB#PBF LTC3543EDCB#TRPBF LCCK 6-Lead (2mm × 3mm) Plastic DFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. 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
l
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
RUN Run Threshold 0.3 1 1.5 V VFB Regulated Feedback Voltage (Note 4) l 0.588 0.6 0.612 V IVFB Feedback Pin Current 50 nA IPK Peak Inductor Current VIN = 3.6V, VFB = 0V 0.7 1 1.3 A VLOADREG Output Voltage Load Regulation 0.5 %/mA VLINEREG Output Voltage Line Regulation (Note 4) 0.5 %/V VIN Input Voltage Range l 2.5 5.5 V IS Input DC Bias Current (Note 5) Active Mode VOUT = 90%, ILOAD = 0A 375 500 μA Sleep Mode VOUT = 103%, ILOAD = 0A 45 70 μA Shutdown VRUN = 0V, VIN = 5.5V 0.1 1 μA fOSC Nominal Oscillator Frequency l 1.80 2.25 MHz RPFET RDS(ON) of P-Channel FET ISW = 100mA 0.45 Ω RNFET RDS(ON) of N-Channel FET ISW = 100mA 0.35 Ω ISW SW Leakage VRUN = 0V, VSW = 0V or 5.5V, VIN = 5.5V ±1 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 2:
The LTC3543E is guaranteed to meet performance specifi cations may cause permanent damage to the device. Exposure to any Absolute from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating Maximum Rating condition for extended periods may affect device temperature ranges are assured by design, characterization and reliability and lifetime. correlation with statistical process controls. 3543fa 2
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VIN Voltage ... –0.3V to 6V TOP VIEW RUN, VFB, MODE, CAP Voltages ...–0.3V to VIN SW 1 6 V SW Voltage ..–0.3V to (V IN IN + 0.3V) Operating Temperature Range (Note 2).. –40°C to 85°C CAP 2 7 5 RUN Junction Temperature (Note 3) ... 125°C MODE 3 4 VFB Storage Temperature Range ... –65°C to 125°C DCB PACKAGE 6-LEAD (2mm s 3mm) PLASTIC DFN TJMAX = 125°C, θJA = 64°C/W 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
LTC3543EDCB#PBF LTC3543EDCB#TRPBF LCCK 6-Lead (2mm × 3mm) Plastic DFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. 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
l
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
RUN Run Threshold 0.3 1 1.5 V VFB Regulated Feedback Voltage (Note 4) l 0.588 0.6 0.612 V IVFB Feedback Pin Current 50 nA IPK Peak Inductor Current VIN = 3.6V, VFB = 0V 0.7 1 1.3 A VLOADREG Output Voltage Load Regulation 0.5 %/mA VLINEREG Output Voltage Line Regulation (Note 4) 0.5 %/V VIN Input Voltage Range l 2.5 5.5 V IS Input DC Bias Current (Note 5) Active Mode VOUT = 90%, ILOAD = 0A 375 500 μA Sleep Mode VOUT = 103%, ILOAD = 0A 45 70 μA Shutdown VRUN = 0V, VIN = 5.5V 0.1 1 μA fOSC Nominal Oscillator Frequency l 1.80 2.25 MHz RPFET RDS(ON) of P-Channel FET ISW = 100mA 0.45 Ω RNFET RDS(ON) of N-Channel FET ISW = 100mA 0.35 Ω ISW SW Leakage VRUN = 0V, VSW = 0V or 5.5V, VIN = 5.5V ±1 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 2:
The LTC3543E is guaranteed to meet performance specifi cations may cause permanent damage to the device. Exposure to any Absolute from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating Maximum Rating condition for extended periods may affect device temperature ranges are assured by design, characterization and reliability and lifetime. correlation with statistical process controls. 3543fa 2