PA1312AHL Datasheet, PDF (1/2 Pages) Pulse A Technitrol Company – Power Beads

smt POWer inductors
Power Beads - PA131xAHL Series Coupled Inductors
Gen1.5 Coupled Inductors (PA131xAHL) enables higher
efficiency compared to the Gen1.0 Coupled Inductors
(PA131xNL) due to lower switching losses in the same
package size
For use only with Volterra chipsets
Halogen Free and RoHS compliant
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C
Pulse
Part No.
Number
of
Coupled
Phases
Equlavent¹
Transient
Inductance
per Phase
(nH)
Irated²
per
Phase
(Adc)
L1
(1-2)
Magnetizing Inductance per Phase³
nH Min, 0Adc
L2
L3
L4
(3-4)
(5-6)
(7-8)
L5
(9-10)
PA1312AHL
2
PA1313AHL
3
50
40
310
310
−
−
−
50
40
290
400
290
−
−
PA1314AHL
4
50
40
296
392
392
296
−
DCR/Phase⁴
(mW)
TYP
MAX
0.425
0.5
NOTES:
1. I n a non-coupled multi-phase topology, the power supply sees the same induc-
tance during transient and steady-state conditions. As a result, any attempt to
lower the inductance to improve transient response has the negative result of
increasing ripple and peak currents throughout the system during steady-state
operation. However, in a coupled inductor multi-phase topology, the interac-
tion of magnetic fields from each phase enables an overall reduction in ripple
current during steady-state operation and a lower equivalent inductance
during transient operation. The equivalent transient inductance per phase, as
listed, represents the actual value of inductance that would be required in an
non-coupled topology to realize the same transient performance. This value is
achieved by core and winding geometry and is not directly measured by Pulse.
For more information on the operation of the coupled inductor topology, please
contact Volterrra.
2.The rated current per phase is based on Volterra’s testing of the Pulse
coupled inductors.
3. The magnetizing inductance per phase is the measured inductance (at 0Adc)
across each phase when all other phases are open-circuit.
4. The nominal value of DCR/phase is for reference only. For production testing,
the maximum limit is used.
Mechanical
Schematic
PA1312AHL
PA1312AHL
Weight ........... 4.5 grams
Tape & Reel ......... 650/reel
Tray ................ 45/tray
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www.pulseelectronics.com
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