Datasheet LT3758, LT3758A (Analog Devices) - 32

LT3758/LT3758A
TYPICAL APPLICATIONS 36V to 72V Input, 3.3V Output Isolated Telecom Power Supply
PA1277NL V VOUT+ IN 4 5 36V TO 72V 3.3V C 0.022µF 3A IN 5.6k 6 COUT 2.2µF 100V 100µF 100V 6.3V X7R BAV21W 7 UPS840 ×3 3 V 1M V OUT- IN FDC2512 8 GATE BAS516 SHDN/UVLO 10Ω SENSE 2 44.2k LT3758 0.03Ω 4.7µF 100pF SYNC 25V BAT54CWTIG 100k INTV X5R CC 4.7µF 1 FBX 25V 16k RT X5R 274Ω SS VC BAS516 47pF 63.4k GND 200kHz LT4430 0.47µF PS2801-1 0.47µF 47nF VIN OPTO 2k 2200pF GND COMP 250VAC 1µF OC 0.5V FB 22.1k 3758 TA07a
Efficiency vs Output Current
100 90 80 70 VIN = 36V VIN = 72V 60 EFFICIENCY (%) 50 VIN = 48V 40 30 200.01 0.1 1 10 OUTPUT CURRENT (A) 3758 TA07b Rev F 32 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts Typical Applications Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts