Coilcraft NA5766 Shielded power inductor Datasheet

Document 1028-1
Shielded Power Inductor
For TI LM5118
buck-boost regulator
• High current power inductor with an Aux winding.
• Developed for use in high efficiency 4 switch buck-boost
regulators with Texas Instruments LM5118
Core material Ferrite
Environmental RoHS compliant
Terminations Matte tin over nickel over phos bronze (L1),
Matte tin over nickel over brass (Aux).
Weight 32 g
Ambient temperature –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature Component: –40°C to +125°C.
Tray packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 25 pieces per tray
PCB washing Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf
Part
Inductance1
number
±20% (µH)
NA5766-AL
10.0
DCR max
(mOhms)2
L1 Aux
2.12
12.0
4
SRF typ3 Isat (A)
(MHz)
10% drop 20% drop
15
18.0
21.5
1:1
1. Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
2. DCR measured on a Keithley 580 micro-ohmmeter or equivalent.
3. SRF measured using an Agilent/HP 4395A network analyzer and an Agilent/HP 16193A test fixture.
4. DC current at which the inductance drops the specified amount from its value without current.
5. Current that causes the specified temperature rise from 25°C ambient.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
L vs Current
1
Aux
L1
4
2
5
3
For mounting stability only.
Do not connect to ground
or other circuits.
L vs Frequency
100
Inductance (µH)
100
Inductance (µH)
Irms (A)5
20°C rise 40°C rise
20
30
30% drop
23.4
10 µH
10
1
0.1
1
Current (A)
10
100
10 µH
10
0.1
0.1
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
1
10
100
Document 1028-1
Revised 10/23/12
Frequency (MHz)
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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