Datasheet LT8390A (Analog Devices) - 6

LT8390A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current (Buck Region) (Buck-Boost Region) (Boost Region)
100 100 100 90 90 90 80 80 80 70 70 70 EFFICIENCY (%) 60 EFFICIENCY (%) 60 EFFICIENCY (%) 60 50 50 50 FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 24V, VOUT = 12V, fSW = 2MHz VIN = 12V, VOUT = 12V, fSW = 2MHz VIN = 8V, VOUT = 12V, fSW = 2MHz 40 40 40 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 1.5 2 2.5 3 3.5 4 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 8390a G01 8390a G02 8390a G03
Switching Waveforms Switching Waveforms Switching Waveforms (Buck Region) (Buck-Boost Region) (Boost Region)
VSW1 VSW1 20V/DIV VSW1 20V/DIV 20V/DIV VSW2 VSW2 20V/DIV 20V/DIV VSW2 20V/DIV IL IL IL 2A/DIV 2A/DIV 2A/DIV VOUT VOUT VOUT 500mV/DIV 500mV/DIV 500mV/DIV 200ns/DIV 8390 G04 200ns/DIV 8390 G05 200ns/DIV 8390 G06 FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 24V, IOUT = 2A VIN = 12V, IOUT = 2A VIN = 8V, IOUT = 2A
VOUT vs IOUT (CV/CC) VIN Shutdown Current VIN Quiescent Current
14 3.0 2.8 12 2.5 2.6 10 2.0 V V 2.4 IN = 60V TAGE (V) IN = 60V 8 V (µA) 1.5 (mA) IN = 12V I Q I Q VIN = 12V 2.2 6 1.0 V OUTPUT VOL IN = 4V 2.0 4 0.5 VIN = 4V 2 0.0 1.8 0 1 2 3 4 5 6 7 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 LOAD CURRENT (A) TEMPERATURE (°C) TEMPERATURE (°C) 8390a G07 8390a G08 8390a G09 8390afa 6 For more information www.linear.com/LT8390A Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts