Description:
• Halogen free
• 125°C maximum total temperature operation
• 11.2 x 11.2 x 9.0mm maximum surface mount package
• Ferrite core material
• High current carrying capacity, low core losses
• Controlled DCR tolerance for sensing circuits
• Inductance range from 205nH to 950nH
• Current range from 11.5 to 69 amps
• Frequency range up to 2MHz
• RoHS compliant
High Current, High Frequency, Power Inductors
FLAT-PAC™ FP1109 Series
0611 BU-SB11642 Page 1 of 4 Data Sheet: 4350
SMD Device
1 Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.10V
rms
, 0.0Adc
2 Full Load Inductance (FLL) Test Parameters: 100kHz, 0.1V
rms
,I
sat
1
3I
rms
: DC current for an approximate temperature rise of 40°C without core loss. Derating is
necessary for AC currents. PCB pad layout, trace thickness and width, air-flow and proximity of
other heat generating components will affect the temperature rise. It is recommended the part
temperature not exceed 125°C under worst case operating conditions verified in the end
application.
4I
sat
1: Peak current for approximately 30% rolloff at +25°C.
5I
sat
2: Peak current for approximately 30% rolloff at +125°C.
6 K-factor: Used to determine B
p-p
for core loss (see graph). B
p-p
= K
*
L
*
ΔI
*
10
-3
,B
p-p
: (Gauss),
K: (K-factor from table), L: (inductance in nH), ΔI (peak-to-peak ripple current in amps).
7 Part Number Definition: FP1109-xxx-R
• FP1109 = Product code and size
• xxx= Inductance value in μH, R = decimal point. If no “R” is present, then
third character = # of zeros
• “-R” suffix = RoHS compliant
Product Specifications
Part Number
7
OCL
1
± 20% (nH) FLL
2
Min. (nH) I
rms
3
(Amps) I
sat
1
4
@ 25°C (Amps) I
sat
2
5
@ 125°C (Amps) DCR (mΩ) @ 20°C K-factor
6
FP1109-R20-R 205 122 69 52 233
FP1109-R23-R 247 147 55 41 233
FP1109-R27-R 270 160 51 38 233
FP1109-R33-R 311 185 35 44 33 0.42 ±10% 233
FP1109-R47-R 463 275 27 20 233
FP1109-R58-R 548 325 22.5 17 233
FP1109-1R0-R 950 565 11.5 8.5 233
Applications:
• Multi-phase regulators
• Voltage Regulator Module (VRM)
• Desktop and server VRMs and EVRDs
• Data networking and storage systems
• Graphics cards and battery power systems
• Point-of-load modules
• DCR sensing
• Notebook regulators
Environmental Data:
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(ambient plus self temperature rise)
• Solder reflow temperature: J-STD-020D compliant
Packaging:
• Supplied in tape and reel packaging, 350 parts per reel,
13” diameter reel
