Applications
• Multi-phase regulators
• Voltage Regulator Module (VRM)
• Desktop and server VRMs and EVRDs
• Data networking and storage systems
• Notebook regulators
• Graphics cards and battery power systems
• Point-of-load modules
• DCR sensing
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, 400 parts per reel,
13” diameter reel
Description
• Halogen free, lead free, RoHS compliant
• 125°C maximum total temperature operation
• 13.4 x 12.7 x 8.0mm surface mount package
• Ferrite core material
• High current carrying capacity, Low core losses
• Controlled DCR tolerance for sensing circuits
• Inductance range from 110nH to 440nH
• Current range from 37 to 120 Amps
• Frequency range up to 2MHz
High Current, High Frequency, Power Inductors
FLAT-PAC™ FP1308R Series
0312 BU-SB12178 Page 1 of 4 Data Sheet: 4355
SMD Device
1 Open Circuit Inductance (OCL) Test Parameters: 100kHz, 1.0V
rms
, 0.0Adc
2 Full Load Inductance (FLL) Test Parameters: 100kHz, 1.0V
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
: Peak current for approximately 20% rolloff at +25°C.
5I
sat
2: Peak current for approximately 20% 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: FP1308Rx-Rxx-R
• FP1308 = Product code and size
• Rx = DCR indicator
• Rxx = Inductance value in μH, R = decimal point.
• “-R” suffix = RoHS compliant
Product Specifications
Part OCL
1
FLL
2
I
rms
3
I
sat
1
4
I
sat
2
5
DCR (mΩ)
Number
7
± 10% (nH) (nH) (Amps) @ 25°C (Amps) @ 125°C (Amps) @ 20°C K-factor
6
R1 Version
FP1308R1-R11-R 110 79 120 105 233
FP1308R1-R21-R 210 152 80 68 233
FP1308R1-R26-R 260 187 57 64 52 0.32 ± 9.4% 233
FP1308R1-R32-R 320 230 52 40 233
FP1308R1-R44-R 440 317 37 28 233
R2 Version
FP1308R2-R11-R 110 79 120 105 233
FP1308R2-R21-R 210 152 80 68 233
FP1308R2-R26-R 260 187 45 64 52 0.53 ± 10% 233
FP1308R2-R32-R 320 230 52 40 233
FP1308R2-R44-R 440 317 37 28 233
R3 Version
FP1308R3-R11-R 110 79 120 105 233
FP1308R3-R21-R 210 152 80 68 233
FP1308R3-R26-R 260 187 68 64 52 0.18 ± 20% 233
FP1308R3-R32-R 320 230 52 40 233
FP1308R3-R44-R 440 317 37 28 233
