SMT POWER INDUCTORS
Power Beads - PA314xHL Series Coupled Inductor
Gen 3.0 Coupled Inductors (2, 3, 4 and 5 phases)
For use only with Volterra 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
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
Part Number
Number
of
Coupled
Phases
PA3142HL
2
PA3143HL
3
PA3144HL
4
PA3145HL
5
Equivalent Transient¹
Inductance per Phase
(nH+/-20%)
50
OCL³
(nH Min, 0Adc)
DCR/Phase
(mW Max)
50
80
250
350
.25
450
Germany 49 7032 7806 0
1
Imax²
Peak per Phase
(Adc)
150
Notes:
1. In a non-coupled multi-phase topology, the power supply sees the same
inductance 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 interaction 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 (Lk) that would be required in an non-coupled topology
to realize the same transient performance. For more information on the
USA 858 674 8100
Irated²
(Adc)
Singapore 65 6287 8998
pulseelectronics.com
operation of the coupled inductor topology, please contact Volterra.
2. The rated current and peak current are based on Volterra’s testing of the
Pulse coupled inductors. For more information, please contact Volterra.
3. The open-circuit inductance per phase is measured inductance across
each phase (ie: measured at (1-2) or (3-4) or (5-6) or (7-8), when all
other windings are open) when all other phases are open circuit. The
open circuit inductance is equal to the magnetizing inductance per
phase (Lm) plus the equivalent transient inductance (Lk).
Shanghai 86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
P699.C (6/12)
SMT POWER INDUCTORS
Power Beads - PA314xHL Series Coupled Inductor
Mechanicals
Schematics
PA3142HL
1
.700 MAX
[17.8] MAX
PULSE PA3142HL
D/C
.106
[2.7]
MFG
3
4X .25
[6.3]
.433 MAX
[11.0] MAX
2
4
2
.315 MAX
[8.0] MAX
2
4
.354
4X .138
[3.5]
2 [9.0]
3
1
.122
[3.1]
.276
[7.0]
1
.142
[3.6]
3
ALTERNATE SUGGESTED LAND PATTERN
PRIMARY SUGGESTED LAND PATTERN
PA3143HL
4
.169
[4.3]
4X .276
[7.0]
2X .157
[4.0]
4
4
.354
[9.0]
.157
[4.0]
.106
[2.7]
2
3
.40
[10.2]
2X .354
[9.0]
.005
4 SURFACES
1
.106
2.7
1
1.063
27.0
.40
10.2
2
MFG
.433 11.0
MAX
3X .354
9.0
.315 8.0
MAX
4
.354
9.0
2
4
8X .138
3.5
6
8X .276
7.0
1
4X .157
4.0
1
2 3
4 5
6
6
.122
3.1
6
.157
4.0
.005
6 SURFACES
5
8X .25
6.3
MAX.
PULSE PA3143HL
D/C
3
3
2
4
.169
4.3
5
.142
3.6
PRIMARY SUGGESTED LAND PATTERN
.354
9.0
.276
7.0
1
3
5
ALTERNATE SUGGESTED LAND PATTERN
PA3144HL
2
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P699.C (6/12)
SMT POWER INDUCTORS
Power Beads - PA314xHL Series Coupled Inductor
Mechanicals
Schematics
PA3145HL
1.772 MAX
[45.0] MAX
1
PULSE PA3145HL
D/C
MFG
.106
[2.7]
.433 MAX
[11.0] MAX
5
73
.400
[10.2]
10X.250
[6.3]
2 .354 4
[9.0]
6
8
8X .354
[9.0]
.005
8
5X .157
[4.0]
1
1
2 3
3
5
7
4 5
6 7
8 9
10
10
.354
10X .138
[3.5]
.315 MAX
[8.0] MAX
10 SURFACES
9
10 6
2 [9.0]
10X .276
[7.0]
9
PRIMARY SUGGESTED LAND PATTERN
4
.169
[4.3]
4
6
8
.122
[3.1]
10
2
.142
[3.6]
.276
[7.0]
1
3
5
7
9
ALTERNATE SUGGESTED LAND PATTERN
For More Information
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA
92128
U.S.A.
Pulse Europe
Einsteinstrasse 1
D-71083 Herrenberg
Germany
Tel: 858 674 8100
Tel: 49 7032 7806
Pulse China Headquarters
B402, Shenzhen Academy of
Aerospace Technology Bldg.
10th Kejinan Road
High-Tech Zone
Nanshan District
Shenzen, PR China
518057
Pulse North China
Room 2704/2705
Super Ocean Finance
Ctr.
2067 Yan An Road
West
Shanghai 200336
China
Pulse South Asia
135 Joo Seng Road
#03-02
PM Industrial Bldg.
Singapore 368363
Tel: 65 6287 8998
Fax: 65 6287 8998
Pulse North Asia
3F, No. 198
Zhongyuan Road
Zhongli City
Taoyuan County 320
Taiwan R. O. C.
Tel: 886 3 4356768
Fax: 886 3 4356823
(Pulse)
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be
trademarks or registered trademarks of their respective owners. © Copyright, 2012. Pulse Electronics, Inc. All rights reserved.
3
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