LPD3015-561ML

Document 661-1 Coupled Inductors–LPD3015 Series For SEPIC Applications At only 1.4 mm high and 3 mm square, the LPD3015 is Coilcraft’s smallest shielded coupled inductor. The excellent coupling coefficient (k ≥ 0.97) makes it ideal for use in SEPIC applications. In SEPIC topologies, the required inductance for each winding in a coupled inductor is half the value needed for two separate inductors, allowing selection of a part with lower DCR and higher current handling. These inductors provide high efficiency and excellent current handling in a rugged, low cost part. They can also be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transformer. 0.118 ±0.003 3,00 ±0,076 1 4 D1 Dot indicates pin 1 + L1 C1 VIN + + VOUT Q1 L2 C2 Load 2 XXX Dash number 0.118 ±0.003 3,00 ±0,076 3 – – Typical SEPIC schematic Refer to Application Note, Document 639, “Selecting Coupled Inductors for SEPIC Applications” 0.055 ±0.004 1,4 ±0,1 1 4 0.094 0.040 2,30 1,02 0.022 0,54 45° typ 0.130 3,30 2 3 0.039 0,99 0.040 1,02 0.094 2,30 0.130 3,30 1 L1 2 L2 4 Dimensions are in inches mm 3 Core material Ferrite Weight 45 – 52 mg Terminations RoHS compliant silver-palladium-platinum-glass frit. Other terminations available at additional cost. Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +125°C. Packaging: –40°C to +80°C Winding to winding isolation 100 Vrms Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at