2
Technical Data 4380
Effective December 2015
CL1108 and CLA1108
Multi-phase power inductors
www.eaton.com/elx
Product Specifications
Functional Test
Part Number
4,5
Inductor
phases
DCR (mΩ)
±10%
@20°C
Rated
Inductance
per Phase
3
(nH)
I Rated per
Phase
3
(ADC)
Imax Peak
per Phase
3
(ADC)
Pin
numbers
OCL
1,2
(nH)
Pin
numbers
OCL
1,2
(nH)
Magnetizing
Inductance
2
(nH) @ 10ADC
(25°C)
CL1108 Family—Standard
CL1108-2-50TR-R 2 0.28 50 ± 20% 50 80 (3-4) 380±20% (1-2) 380±20% 300
CL1108-3-50TR-R 3 0.28 50 ± 20% 50 80 (3-4) 400±20% (1-2), (5-6) 380±20% 300
CL1108-4-50TR-R 4 0.28 50 ± 20% 50 80 (3-4), (5-6) 400±20% (1-2), (7-8) 380±20% 300
CL1108-5-50TR-R 5 0.28 50 ± 20% 50 80 (3-4), (5-6), (7-8) 400±20% (1-2), (9-10) 380±20% 300
CLA1108 Family—Acoustic Noise Dampening
CLA1108-2-50TR-R 2 0.28 50 ± 20% 50 80 (3-4) 380±20% (1-2) 380±20% 300
CLA1108-3-50TR-R 3 0.28 50 ± 20% 50 80 (3-4) 400±20% (1-2), (5-6) 380±20% 300
CLA1108-4-50TR-R 4 0.28 50 ± 20% 50 80 (3-4), (5-6) 400±20% (1-2), (7-8) 380±20% 300
1. Open Circuit Inductance (OCL)
2. Test parameters: 1MHz, 0.1Vrms, 0.0Adc. @25°C
3. The rated current, Imax peak current, and rated inductance per phase is determined by Volterra’s testing and circuit
design. Additional information can be provided by contacting Volterra.
4. Part Number Definition: CLx1108-y-50TR-R
• CL(x)1108 = Product code and size (CL= standard, CLA= Acoustic Noise Dampening)
• y = number of phases
• 50 = inductance value per phase nH
• TR = Tape and reel packaging
• -R suffix= RoHS compliant
5. This device is licensed for use only when incorporated within a voltage regulator employing power regulating
devices manufactured by Volterra Semiconductor, LLC or Maxim Integrated Devices, Inc. No license is granted
expressly or by implication to use this device with power regulating devices manufactured by any company other
than Volterra or Maxim.
Dimensions (mm)
Part marking: Pin 1 dot, CL1108/CLA1108= (product code and size, CL= standard, CLA= acoustic noise
dampening), -2,-3,-4,-5, = (number of phases), -50= inductance value per
phase in nH, TR= tape and reel, -R = RoHS compliant
wwllyy = date code, R = revision level
Tolerances are ±0.25 millimeters unless stated otherwise
All soldering surfaces to be coplanar within 0.13 millimeter
Do not route traces or vias underneath the inductor
Top View
Bottom View
Front View
27.0±0.5
11.0±0.5
CL1108-3-50TR-R
wwllyy R
CL/CLA1108-3
36.0±0.5
11.0±0.5
CL1108-4-50TR-R
wwllyy R
4
2
18.0±0.5
11.0±0.5
CL1108-2-50TR-R
wwllyy R
CL1108-5
45.0±0.8
11.0±0.5
CL1108-5-50TR-R
wwllyy R
Pin #1
Pin #1
Pin #1
9.0±0.25
9.0±0.25
