Datasheet LTC3815 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | 6A Monolithic Synchronous DC/DC Step-Down Converter with Digital Power System Management |
| Pages / Page | 42 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. Normal Start-Up. Start-Up Into … |
| Revision | B |
| File Format / Size | PDF / 3.0 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Normal Start-Up. Start-Up Into Pre-Biased Output. VOUT Short and Recovery
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LTC3815
TYPICAL PERFORMANCE CHARACTERISTICS Normal Start-Up Start-Up Into Pre-Biased Output VOUT Short and Recovery
RUN RUN V 2V/DIV 2V/DIV OUT 0.5V/DIV VOUT VOUT 0.5V/DIV 0.5V/DIV PGOOD PGOOD 2V/DIV 2V/DIV IL 5A/DIV IL IL 1A/DIV 1A/DIV 500µs/DIV 3815 G28 500µs/DIV 3815 G29 500µs/DIV 3815 G30 VOUT = 1V VOUT = 1V MODE = 0 MODE = 0 FRONT PAGE CIRCUIT FRONT PAGE CIRCUIT
Switch On-Resistance Switch On-Resistance Switch Leakage vs Input Voltage vs Temperature vs Temperature, Main Switch
60 60 10 SYNCHRONOUS SWITCH SYNCHRONOUS SWITCH MAIN SWITCH 9 50 MAIN SWITCH 50 8 40 40 6 (mΩ) (mΩ) 30 30 5 R DS(ON) R DS(ON) 4 20 20 SWITCH LEAKAGE (µA) 3 10 10 1 0 0 0 2 3 4 5 6 –50 0 50 100 150 –50 0 50 100 150 INPUT VOLTAGE (v) TEMPERATURE (°C) TEMPERATURE (°C) 3815 G31 3815 G32 3815 G33
Switch Leakage vs Temperature, Dynamic Supply Current Minimum VIN vs Load, VOUT and Synchronous Switch vs Input Voltage Frequency
12 40 3.5 VOUT=1.2V, 1MHz 11 V 33 OUT=1.2V, 2MHz VOUT=1.8V, 1MHz 9 3.0 VOUT=1.8V, 2MHz 27 8 (V) IN 6 20 2.5 Y CURRENT (mA) 5 13 MINIMUM V SWITCH LEAKAGE (µA) 3 SUPPL 2.0 7 2 1MHz 2MHz 0 0 1.5 –50 0 50 100 150 2 3 4 5 6 0 1 2 3 4 5 6 TEMPERATURE (°C) INPUT VOLTAGE (v) LOAD CURRENT (A) 3815 G34 3815 G35 3815 G36 Rev B For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information PMBus Command Details Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Normal Start-Up Start-Up Into Pre-Biased Output VOUT Short and Recovery
RUN RUN V 2V/DIV 2V/DIV OUT 0.5V/DIV VOUT VOUT 0.5V/DIV 0.5V/DIV PGOOD PGOOD 2V/DIV 2V/DIV IL 5A/DIV IL IL 1A/DIV 1A/DIV 500µs/DIV 3815 G28 500µs/DIV 3815 G29 500µs/DIV 3815 G30 VOUT = 1V VOUT = 1V MODE = 0 MODE = 0 FRONT PAGE CIRCUIT FRONT PAGE CIRCUIT
Switch On-Resistance Switch On-Resistance Switch Leakage vs Input Voltage vs Temperature vs Temperature, Main Switch
60 60 10 SYNCHRONOUS SWITCH SYNCHRONOUS SWITCH MAIN SWITCH 9 50 MAIN SWITCH 50 8 40 40 6 (mΩ) (mΩ) 30 30 5 R DS(ON) R DS(ON) 4 20 20 SWITCH LEAKAGE (µA) 3 10 10 1 0 0 0 2 3 4 5 6 –50 0 50 100 150 –50 0 50 100 150 INPUT VOLTAGE (v) TEMPERATURE (°C) TEMPERATURE (°C) 3815 G31 3815 G32 3815 G33
Switch Leakage vs Temperature, Dynamic Supply Current Minimum VIN vs Load, VOUT and Synchronous Switch vs Input Voltage Frequency
12 40 3.5 VOUT=1.2V, 1MHz 11 V 33 OUT=1.2V, 2MHz VOUT=1.8V, 1MHz 9 3.0 VOUT=1.8V, 2MHz 27 8 (V) IN 6 20 2.5 Y CURRENT (mA) 5 13 MINIMUM V SWITCH LEAKAGE (µA) 3 SUPPL 2.0 7 2 1MHz 2MHz 0 0 1.5 –50 0 50 100 150 2 3 4 5 6 0 1 2 3 4 5 6 TEMPERATURE (°C) INPUT VOLTAGE (v) LOAD CURRENT (A) 3815 G34 3815 G35 3815 G36 Rev B For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information PMBus Command Details Typical Applications Package Description Revision History Typical Application Related Parts
