Datasheet LTC3811 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | High Speed Dual, Multiphase Step-Down DC/DC Controller |
| Pages / Page | 48 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. Top Gate Turn-On Waveform. Top Gate … |
| File Format / Size | PDF / 552 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Top Gate Turn-On Waveform. Top Gate Turn-Off Waveform. Bottom Gate Turn-On Waveform
Model Line for this Datasheet
Text Version of Document
LTC3811
TYPICAL PERFORMANCE CHARACTERISTICS Top Gate Turn-On Waveform Top Gate Turn-Off Waveform Bottom Gate Turn-On Waveform Driving Renesas RJK0305DPB Driving Renesas RJK0305DPB Driving Renesas RJK0301DPB
TG – SW TG – SW 2V/DIV 2V/DIV 2V/DIV 10ns/DIV 3811 G37 VIN = 12V 10ns/DIV 3811 G38 VIN = 12V 25ns/DIV 3811 G39 VIN = 12V VOUT = 1.5V VOUT = 1.5V VOUT = 1.5V IOUT = 5A IOUT = 5A IOUT = 5A
Bottom Gate Turn-Off Waveform Single Output, 2-Phase Current Start-Up Into a Pre-Biased Driving Renesas RJK0301DPB Sharing Waveforms Output Capacitor
IL 5A/DIV 1V/DIV 1V 2V/DIV SW1 PRE BIAS 10V/DIV SW2 OV 10V/DIV 25ns/DIV 3811 G40 VIN = 12V 1μs/DIV 3811 G41 VIN = 12V 500μs/DIV 3811 G42 VOUT = 3.3V VOUT = 1.5V VOUT = 1.5V IOUT = 5A IOUT = 16A
Sequenced Start-Up Ratiometric Tracking Start-Up Coincident Tracking Start-Up
RUN1 2V/DIV VOUT1 = 2V VOUT2 = 1.5V RUN2 5V/DIV 500mV/DIV 500mV/DIV VOUT1 = 2V VOUT2 = 1.5V 500mV/DIV 10ms/DIV 3811 G43 VIN = 12V 5ms/DIV 3811 G44 VIN = 12V 5ms/DIV 3811 G45 RLOAD1 = RLOAD2 = 1.5Ω RLOAD1 = RLOAD2 = 1.5Ω RUN2 CONNECTED TO PGOOD1 3811f 10
TYPICAL PERFORMANCE CHARACTERISTICS Top Gate Turn-On Waveform Top Gate Turn-Off Waveform Bottom Gate Turn-On Waveform Driving Renesas RJK0305DPB Driving Renesas RJK0305DPB Driving Renesas RJK0301DPB
TG – SW TG – SW 2V/DIV 2V/DIV 2V/DIV 10ns/DIV 3811 G37 VIN = 12V 10ns/DIV 3811 G38 VIN = 12V 25ns/DIV 3811 G39 VIN = 12V VOUT = 1.5V VOUT = 1.5V VOUT = 1.5V IOUT = 5A IOUT = 5A IOUT = 5A
Bottom Gate Turn-Off Waveform Single Output, 2-Phase Current Start-Up Into a Pre-Biased Driving Renesas RJK0301DPB Sharing Waveforms Output Capacitor
IL 5A/DIV 1V/DIV 1V 2V/DIV SW1 PRE BIAS 10V/DIV SW2 OV 10V/DIV 25ns/DIV 3811 G40 VIN = 12V 1μs/DIV 3811 G41 VIN = 12V 500μs/DIV 3811 G42 VOUT = 3.3V VOUT = 1.5V VOUT = 1.5V IOUT = 5A IOUT = 16A
Sequenced Start-Up Ratiometric Tracking Start-Up Coincident Tracking Start-Up
RUN1 2V/DIV VOUT1 = 2V VOUT2 = 1.5V RUN2 5V/DIV 500mV/DIV 500mV/DIV VOUT1 = 2V VOUT2 = 1.5V 500mV/DIV 10ms/DIV 3811 G43 VIN = 12V 5ms/DIV 3811 G44 VIN = 12V 5ms/DIV 3811 G45 RLOAD1 = RLOAD2 = 1.5Ω RLOAD1 = RLOAD2 = 1.5Ω RUN2 CONNECTED TO PGOOD1 3811f 10
