Datasheet LT3511 (Analog Devices) - 10

LT3511
APPLICATIONS INFORMATION TRANSFORMER DESIGN CONSIDERATIONS
Linear Technology has worked with several leading mag- netic component manufacturers to produce pre-designed Successful application of the LT3511 relies on proper flyback transformers for use with the LT3511. Table 1 transformer specification and design. Carefully consider shows the details of these transformers. the following information in addition to the traditional guidelines associated with high frequency isolated power supply transformer design.
Table 1. Predesigned Transformers TRANSFORMER SATURATION TARGET PART NUMBER LPRI (μH) LEAKAGE (μH) NP:NS:NB ISOLATION (V) CURRENT (mA) VENDOR APPLICATIONS
750311558 300 1.5 4:1:1 1500 500 Würth Elektronik 48V to 5V, 0.3A 24V to 5V, 0.2A 12V to 5V, 0.13A 48V to 3.3V, 0.33A 24V to 3.3V, 0.28A 12V to 3.3V, 0.18A 750311019 400 5 6:1:2 1500 750 Würth Elektronik 24V to 5V, 0.26A 12V to 5V, 0.17A 48V to 3.3V, 0.43A 24V to 3.3V, 0.35A 12V to 3.3V, 0.2A 750311659 300 2 1:1:0.2 1500 560 Würth Elektronik 48V to 24V, 0.07A 750311660 350 3 2:1:0.33 1500 520 Würth Elektronik 48V to 15V, 0.1A 48V to 12V, 0.12A 24V to 15V, 0.09A 12V to 15V, 0.045A 750311838 350 3 2:1:1 1500 520 Würth Elektronik 48V to ±15V, 0.05A 48V to ±12V, 0.06A 24V to ±15V, 0.045A 750311963 200 0.4 1:5:5 1500 650 Würth Elektronik 12V to ±70V, 0.004A 12V to ±100V, 0.003A 12V to ±150V, 0.002A 750311966 120 0.45 1:5:0.5 1500 900 Würth Elektronik 12V to +120V and –12V, 0.002A 10396-T024 300 2.0 4:1:1 1500 500 Sumida 48V to 5V, 0.3A 24V to 5V, 0.2A 12V to 5V, 0.13A 48V to 3.3V, 0.33A 24V to 3.3V, 0.28A 12V to 3.3V, 0.18A 10396-T026 300 2.5 6:1:2 1500 500 Sumida 24V to 5V, 0.26A 12V to 5V, 0.17A 48V to 3.3V, 0.43A 24V to 3.3V, 0.35A 12V to 3.3V, 0.2A 01355-T057 250 2.0 1:1:0.2 1500 500 Sumida 48V to 24V, 0.07A 10396-T022 300 2.0 2:1:0.33 1500 500 Sumida 48V to 15V, 0.1A 48V to 12V, 0.12A 24V to 15V, 0.09A 12V to 15V, 0.045A 10396-T028 300 2.5 2:1:1 1500 500 Sumida 48V to ±15V, 0.05A 48V to ±12V, 0.06A 24V to ±15V, 0.045A 3511fc 10