LPD3015-391ML Datasheet, PDF (1/3 Pages) Coilcraft lnc. – Coupled Inductors for SEPIC

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 con-
nected 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
0.118 ±0.003
XXX
3,00 ±0,076
2
3
Dot indicates pin 1
D1
+
+
L1
C1
V_IN
Q1
+
L2
C2
Load ^VOUT
–
–
Dash
number
Typical SEPIC schematic
Refer to Application Note, Document 639,
“Selecting Coupled Inductors for SEPIC Applications”
0.055 ±0.004
1,4 ±0,1
0.039
0,99
1
4
L1
L2
2
3
1
0.094 0.040
2,30 1,02
0.022
0,54
4 _45°
typ
0.130
3,30
2
3
0.040
1,02
0.094
2,30
0.130
3,30
Dimensions are in
inches
mm
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 <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 1000/7″reel; 3500/13″ reel Plastic tape: 12 mm wide,
0.26 mm thick, 8 mm pocket spacing, 1.65 mm pocket depth
Recommended pick and place nozzle OD: 3 mm; ID: ≤ 1.5 mm
PCB washing Only pure water or alcohol recommended
Specifications subject to change without notice.
Please check our website for latest information.
Document 661-1 Revised 09/18/09
© Coilcraft, Inc. 2010