Datasheet LTC3867 (Analog Devices) - 6

LTC3867
TYPICAL PERFORMANCE CHARACTERISTICS Load Step-Up (0A to 15A, 15A/µs) Load Step-Up (0A to 15A, 15A/µs) (Nonlinear Operation) (Normal Operation) Overcurrent Recovery
VOUT V 50mV/DIV 97.5mV OUT V 50mV/DIV 137.5mV OUT 500mV/DIV SW SW IOUT 5V/DIV 5V/DIV 10A/DIV 5µs/DIV 3867 G01 5µs/DIV 3867 G02 200µs/DIV 3867 G03
Efficiency and Output Current and Mode Quiescent Current vs Temperature Pre-Bias Start-Up
100 4.0 4.5 Burst Mode OPERATION 90 DCM 3.5 CCM VOUT 80 200mV/DIV 3.0 4.0 70 POWER LOSS (W) 60 2.5 50 2.0 3.5 TRACK/SS 40 1.5 500mV/DIV EFFICIENCY (%) 30 1.0 3.0 QUIESCENT CURRENT (mA) 20 10ms/DIV 3867 G05 10 0.5 VIN = 12V V 0 OUT = 1.5V 0 2.5 0.01 0.1 1 10 100 –50 –25 0 25 50 75 100 125 LOAD CURRENT (A) TEMPERATURE (°C) 3867 G21 3867 G04
Quiescent Current vs Input Coincident Tracking Master Supply Voltage without EXTVCC INTVCC Line Regulation
3.50 5.5 5.0 MASTER 3.25 SUPPLY 4.5 500mV/DIV 4.0 VOUT 3.00 500mV/DIV VOLTAGE (V) 3.5 CC SUPPLY CURRENT (mA) 2.75 INTV 3.0 10ms/DIV 3867 G06 2.5 2.50 2.0 4 8 12 16 20 24 28 32 36 40 0 5 10 15 20 25 30 35 40 45 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3867 G07 3867 G08 3867f 6 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Package Description Typical Application Related Parts