SMT POWER INDUCTORS
Power Beads - PA314xHL Series Coupled Inductor
Gen 3.0 Coupled Inductors (2, 3, 4 and 5 phases)
For exclusive use with Maxim VPR devices
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
Number
of
Coupled
Phases
2
3
4
5
50
50
80
Equivalent Transient¹
Inductance per Phase
(nH+/-20%)
Irated²
(Adc)
Imax²
Peak per Phase
(Adc)
OCL³
(nH Min, 0Adc)
150
250
350
450
.25
Part Number
PA3142HL
PA3143HL
PA3144HL
PA3145HL
DCR/Phase
(m
W
Max)
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 opera-
tion 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).
1
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SMT POWER INDUCTORS
Power Beads - PA314xHL Series Coupled Inductor
Mechanicals
PA3142HL
.700 MAX
[17.8] MAX
PULSE PA3142HL
D/C
MFG
Schematics
1
.106
[2.7]
1
3
.40
[10.2]
2
3
4X .25
[6.3]
.433 MAX
[11.0] MAX
2
2X .354
[9.0]
4
4
.354
[9.0]
4X .138
[3.5]
.169
[4.3]
4
.354
2
2
[9.0]
4
.315 MAX
[8.0] MAX
.005
4 SURFACES
.122
[3.1]
.157
[4.0]
2
.106
[2.7]
4X .276
[7.0]
.276
[7.0]
4
2X .157
[4.0]
1
3
.142
[3.6]
1
3
PRIMARY SUGGESTED LAND PATTERN
ALTERNATE SUGGESTED LAND PATTERN
PA3143HL
1
.106
2.7
3
5
1.063
27.0
MAX.
8X .25
6.3
2
.354
9.0
4
6
.40
10.2
1
2 3
4 5
6
PULSE PA3143HL
D/C
MFG
.433 11.0
MAX
2
3X .354
9.0
4
6
8X .138
3.5
2
.354
9.0
4
6
.122
3.1
.315 8.0
MAX
.005
6 SURFACES
.157
4.0
8X .276
7.0
1
3
5
.169
4.3
.276
7.0
1
3
5
4X .157
4.0
.142
3.6
PRIMARY SUGGESTED LAND PATTERN
ALTERNATE SUGGESTED LAND PATTERN
PA3144HL
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SMT POWER INDUCTORS
Power Beads - PA314xHL Series Coupled Inductor
Mechanicals
PA3145HL
1.772 MAX
[45.0] MAX
1
.106
[2.7]
3
5
7
9
.400
[10.2]
2 .354 4
[9.0]
6
8
10
Schematics
PULSE PA3145HL
D/C
MFG
.433 MAX
[11.0] MAX
10X.250
[6.3]
1
2 3
4 5
6 7
8 9
10
8X .354
[9.0]
10X .138
[3.5]
2
[9.0]
.169
[4.3]
.142
[3.6]
.354
4
6
8
10
.122
[3.1]
.315 MAX
[8.0] MAX
.005
10 SURFACES
2
5X .157
[4.0]
4
3
6
5
8
7
10
9
10X .276
[7.0]
.276
[7.0]
1
1
3
5
7
9
PRIMARY SUGGESTED LAND PATTERN
ALTERNATE SUGGESTED LAND PATTERN
For More Information
Pulse Worldwide
Headquarters
15255 Innovation Drive Ste 100
San Diego, CA 92128
U.S.A.
Pulse Europe
Pulse Electronics GmbH
Am Rottland 12
58540 Meinerzhagen
Germany
Pulse China Headquarters
Pulse Electronics (ShenZhen) CO., LTD
D708, Shenzhen Academy of
Aerospace Technology,
The 10th Keji South Road,
Nanshan District, Shenzhen, P.R.
China 518057
Tel: 86 755 33966678
Fax: 86 755 33966700
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Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Road West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
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#03-02
PM Industrial Bldg.
Singapore 368363
Pulse North Asia
1F, No.111
Xiyuan Road
Zhongli District
Taoyuan City 32057
Taiwan (R.O.C)
Tel: 886 3 4356768
Fax: 886 3 4356820
Tel: 858 674 8100
Fax: 858 674 8262
Tel: 49 2354 777 100
Fax: 49 2354 777 168
Tel: 65 6287 8998
Fax: 65 6280 0080
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, 2017. Pulse Electronics, Inc. All rights reserved.
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