Datasheet LTC3612 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter |
| 页数 / 页 | 30 / 7 — Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN, unless … |
| 文件格式/大小 | PDF / 416 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN, unless otherwise noted. Tracking Up/Down in
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LTC3612
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN, unless otherwise noted. Tracking Up/Down in Internal Start-Up in Forced Forced Continuous Mode, Continuous Mode DDR Pin Tied to 0V
RUN 1V/DIV VOUT V 1V/DIV OUT 500mV/DIV VTRACK/SS IL 500mV/DIV 1A/DIV PGOOD PGOOD 2V/DIV 2V/DIV 500µs/DIV 3612 G17 VOUT = 1.8V IOUT = 3A 2ms/DIV 3612 G18 VMODE = 1.5V VOUT = 0V TO 1.8V IOUT = 3A VTRACK/SS = 0V TO 0.7V VMODE = 1.5V VDDR = 0V
Tracking Up/Down in Forced Continuous Mode, DDR Pin Tied Reference Voltage to SVIN vs Temperature
0.606 VOUT 500mV/DIV 0.604 VTRACK/SS 200mV/DIV 0.602 TAGE (V) PGOOD 2V/DIV 0.600 2ms/DIV 3612 G19 0.598 VOUT = 0V TO 1.2V REFERENCE VOL IOUT = 3A V 0.596 TRACK/SS = 0V TO 0.4V VMODE = 1.5V VDDR = 3.3V 0.594–60–50–30–10 10 30 50 70 90 110130150 TEMPERATURE (°C) 3612 G20
Switch On-Resistance Switch On-Resistance vs Input Voltage vs Temperature
0.10 0.10 0.09 0.09 0.08 0.08 MAIN SWITCH 0.07 MAIN SWITCH 0.07 0.06 (Ω) (Ω) 0.06 0.05 SYNCHRONOUS SWITCH 0.05 R DS(0N) 0.04 R DS(ON) 0.04 SYNCHRONOUS SWITCH 0.03 0.03 0.02 0.02 0.01 0.01 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –60 –50 –30 –10 10 30 50 70 90 110 130 150 INPUT VOLTAGE (V) TEMPERATURE (°C) 3612 G21 3612 G22 3612fc For more information www.linear.com/LTC3612 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Package Description Typical Application Related Parts
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN, unless otherwise noted. Tracking Up/Down in Internal Start-Up in Forced Forced Continuous Mode, Continuous Mode DDR Pin Tied to 0V
RUN 1V/DIV VOUT V 1V/DIV OUT 500mV/DIV VTRACK/SS IL 500mV/DIV 1A/DIV PGOOD PGOOD 2V/DIV 2V/DIV 500µs/DIV 3612 G17 VOUT = 1.8V IOUT = 3A 2ms/DIV 3612 G18 VMODE = 1.5V VOUT = 0V TO 1.8V IOUT = 3A VTRACK/SS = 0V TO 0.7V VMODE = 1.5V VDDR = 0V
Tracking Up/Down in Forced Continuous Mode, DDR Pin Tied Reference Voltage to SVIN vs Temperature
0.606 VOUT 500mV/DIV 0.604 VTRACK/SS 200mV/DIV 0.602 TAGE (V) PGOOD 2V/DIV 0.600 2ms/DIV 3612 G19 0.598 VOUT = 0V TO 1.2V REFERENCE VOL IOUT = 3A V 0.596 TRACK/SS = 0V TO 0.4V VMODE = 1.5V VDDR = 3.3V 0.594–60–50–30–10 10 30 50 70 90 110130150 TEMPERATURE (°C) 3612 G20
Switch On-Resistance Switch On-Resistance vs Input Voltage vs Temperature
0.10 0.10 0.09 0.09 0.08 0.08 MAIN SWITCH 0.07 MAIN SWITCH 0.07 0.06 (Ω) (Ω) 0.06 0.05 SYNCHRONOUS SWITCH 0.05 R DS(0N) 0.04 R DS(ON) 0.04 SYNCHRONOUS SWITCH 0.03 0.03 0.02 0.02 0.01 0.01 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –60 –50 –30 –10 10 30 50 70 90 110 130 150 INPUT VOLTAGE (V) TEMPERATURE (°C) 3612 G21 3612 G22 3612fc For more information www.linear.com/LTC3612 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Package Description Typical Application Related Parts