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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

Datasheet 3D Models

Magnetics

for Texas Instruments LM5025 & LM5034

Specifically developed for use with the Texas Instruments LM5110 Gate Driver and LM5025 Cascaded PWM Controller
Specified by Texas Instruments for use with LM5034 Dual Interleaved Controller
Low profile, high efficiency planar transformer
Planar output choke inductor

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Part number

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Count	Unit price
1	$17.06
1000	$11.05
5000	$8.68

For high volume or non-stock items, request a quote.

Packaging

D = 13" machine-ready reel

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Typical Application

Works with Texas Instruments LM5110, LM5025

Output	Power
3.3 V , 30 A	100 W

Specifications

Electrical specifications at 25°C.

Planar Transformer

Part number 1 (Hover for schematics)	Inductance min (µH) 2	DCR max 3		Leakage Inductance max (µH) 4	Isolation Voltage (Vrms)
Part number 1 (Hover for schematics)	Inductance min (µH) 2	Pri (mΩ)	Sec (mΩ)	Leakage Inductance max (µH) 4	Isolation Voltage (Vrms)
B0357-BLD	320	55.0	1.0	0.55	1500

Planar Output Inductor

Part number 5	Inductance (µH) 6 (Tolerance: ±10%)	DCR max (Ω) 7		Isolation Voltage (V) 8	Isat (A) 9	Irms (A) 10
Part number 5	Inductance (µH) 6 (Tolerance: ±10%)	Main	Aux	Isolation Voltage (V) 8	Isat (A) 9	Irms (A) 10
B0358-CLD	2.0	0.0020	0.90	1500	32.0	36.0

Notes

When ordering, please specify packaging code: e.g. B0357-BLD
Inductance measured on an Agilent/HP 4284 between pins 1 and 2 at 250 kHz, 0.1 Vrms, 0 Adc.
DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Leakage inductance measured between pins 1 and 2 at 100 kHz, 0.1 Vrms, 0 Adc with secondary pins shorted.
When ordering, please specify packaging code: e.g. B0358-CLD
Inductance measured on an Agilent/HP 4284 between pins 3 and 4 at 250 kHz, 0.1 Vrms.
DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Isolation measured from pin 1 to pin 3.
Isat: DC current at which inductance drops 10% (typ) from its value without current. Details
Irms: Current that causes a 40°C temperature rise from 25°C ambient. Details

Termination:

RoHS-compliant. 260°C compatible. Matte tin over nickel over brass terminations.

Packaging:

D = 13″ machine ready reel. EIA-481 embossed plastic tape (200 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

−40°C to +85°C

Storage temperature range:

Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Inductance vs Current (B0358-C Planar Output Inductor)

Inductance vs Frequency (B0358-C Planar Output Inductor)

Schematics

B0357-BL	B0358-CL

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
200	330	100	13	50,4	44,4	44	32	4	2	9,4	0,37

General specification

Core Material:

Ferrite

Weight:

11.3 g

Packaging:

200 per 13″ reel Plastic tape: 44 mm wide, 0.37 mm thick, 32 mm pocket spacing, 9.4 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT)

Resistance to soldering heat:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Only pure water or alcohol recommended

Magnetics

for Texas Instruments LM5025 & LM5034

Typical Application