SMT Power Inductors
Power Beads - 2 - Phase Coupled Inductors for Notebook Vcore
Halogen Free
For use only with Volterra VT13xx chipset
Height:
4.0mm Max
Footprint:11.8mm
x 11.4mm Max (PA2143NL)
9.9mm x 10.0mm Max (PA2156NL)
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C
7
Part Number
Leakage
1
Inductance
(nH ±20%)
50
50
Irated/Phase
(Adc)
3
Open Circuit
2
Inductance
(Lm+Lk)
(1-4)
200
240
(2-3)
200
240
Coupling
2
Ratio
(TYP)
3
4
DCR/Phase
(mW Nom)
(1-4)
.26±10%
.36±13%
(2-3)
Saturation Current
4
(Adc @25°C)
2*Lk
>40
>40
Lm+Lk
18
9
Heating Current
5
per Phase
(Adc)
35
28
PA2143NL - 11.8
MM
x 11.4
MM
x 4.0
MM
MAX
PA2143NL
PA2156NL
31
31
PA2156NL - 9.9
MM
x 10.0
MM
x 4.0
MM
MAX
NOTES:
1. The leakage inductance (Lk) is equivalent to the phase inductance in a non-coupled design. The leak-
age inductance represents the actual inductance that would be required in an non-coupled design to
achieve the same transient performance. Only the value of 2*Lk (ie: series leakage inductance) can
be measured directly. The value of 2*Lk is measured between pins (1-2) with (4,3) shorted.
2. The open circuit inductance (Lm+Lk) can be measured directly on either pins (1-4) or pins (2-3). The
value of Lm/Lk defines the coupling ratio.
3. The Irated/phase represents the DC current per phase that the coupled inductor can tolerate (with a
5Adc/phase imbalance) before saturating.
4. The heating current (Idc) is the DC current required to raise the component temperature by approxi-
mately 40C. The components performance varies depending on the system conditions.
5. In high volt*time applications, additional heating in the component can occur due to core losses in
the inductor which may neccessitate derating the current in order to limit the temperature rise of
the component. To determine the approximate total losses (or temperature rise) for a given applica-
tion, the coreloss and temperature rise curves can be used.
6. The temperature of the component (ambient plus temperature rise) must be within the stated oper-
ating temperature range.
7. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (i.e.
PA2143NL becomes PA2143NLT). Pulse complies with industry standard tape and reel specification
EIA481. The tape and reel for this product has a width (W=24mm), pitch (Po=16mm) and depth
(Ko=4.1mm)
Mechanicals
PA2143NL
½½
½½½½ ½½½
½½½½½
½½½½
½½½½
½½
½½½½
½½½½
Schematics
½½½½½½½½½
½
½
½
½
½
½½½½
½½½½½
½½½
½½½½
½½½½
½
½½½½½½½½½½½
½½½½½ ½
½½
½½
½½½½
½½½
½½
½½½½½ ½
½½½½½½½½½
½½½½½½½½½½½½½½½½½
½½½½½½½½
½
½½½½
½½½½
½
½½½½
½½½½
½½½½½½½½½½½½½½½½½½½½
½½½½
½½½½
½½½
½½½½
½½
½½½½
½½½½
½½½½
Weight
. . . . . . . . . . . . . . 2 .1 grams
Tape & Reel
. . . . . . . . . 1000/reel
Dimensions:
Inches
mm
Unless otherwise specified, all tolerances
are ± .010
0,25
USA 215 781 6400
Germany 49 7032 7806 0
1
Singapore 65 6287 8998
Shanghai 86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
P657.C (04/11)
pulseelectronics.com
SMT Power Inductors
Power Beads - 2 - Phase Coupled Inductors for Notebook Vcore
400
350
300
PA2156NL (Lm+Lk)
PA2156NL
PA2156NL (2*Lk)
For More Information
Pulse Worldwide
Headquarters
12220 World Trade Dr.
San Diego, CA 92128
U.S.A.
Tel: 858 674 8100
Fax: 858 674 8262
Pulse Europe
Einsteinstrasse 1
D-71083 Herrenberg
Germany
Pulse China Headquarters
B402, Shenzhen Academy of
Aerospace Technology Bldg.
10th Kejinan Road
High-Tech Zone
Nanshan District
Shenzen, PR China 518057
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Road West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
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)
Fax: 886 3 4356820 (FRE)
Tel: 49 7032 7806 0
Fax: 49 7032 7806 135
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, 2011. Pulse Electronics, Inc. All rights reserved.
3
pulseelectronics.com
P657.C (04/11)
FPGA/CPLD
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
