SMT POWER INDUCTORS
SMT POWER INDUCTORS
Power Beads - PA131xNL Series Coupled Inductors
Two, three, four and five phase Coupled Inductors f...
Description
SMT POWER INDUCTORS
Power Beads - PA131xNL Series Coupled Inductors
Two, three, four and five phase Coupled Inductors for VR10/VR11 applications
For use only with Volterra VT1105M ®, VT1115M ® chipsets
Coupled Inductors enable:
Phase ripple current reduction due to AC magnetic field cancellation within the inductor core
Improved efficiency due to lower peak currents Reduction in required output capacitance Faster transient response due to the ability to use lower
effective inductance values Reduced overshoot/undershoot during load transients Frequency range up to 2MHz
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C
Pulse Part No.
Number of
Coupled Phases
Equivalent1 Transient Inductance per Phase
(nH)
Irated2 per
Phase (Adc)
Magnetizing Inductance per Phase3 nH ±20%, 0Adc
L1 L2 L3 L4 L5 (1-2) (3-4) (5-6) (7-8) (9-10)
Magnetizing Inductance per Phase4 nH MIN, 5Adc
L1 L2 L3 L4 L5 (1-2) (3-4) (5-6) (7-8) (9-10)
DCR/Phase5 (mΩ)
TYP MAX
PA1312NL
2
50
40 310 310
-
-
-
240 240
-
-
-
PA1313NL PA1314NL
3 4
50
40 370 450 370 -
- 285 350 285 -
- 0.425 0.5
50
40 370 490 490 370
-
285 385 385 285 -
PA1315NL
5
50 40 370 470 490 470 390 285 365 385 365 285
NOTES: 1. In 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 pe...
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