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reference designLMS3635-Q1 | Demoboard TIDA 01056

Texas Instruments LMS3635-Q1 | Demoboard TIDA 01056

3.5A /5.5A, 36V Synchronous, 400kHz, Step-Down Converter

Overview

TopologyOther Topology
Switching frequency250-500 kHz
IC revisionE1

Description

This reference design for high performance data acquisition (DAQ) systems optimizes power stage in order to reduce power consumption and minimize the effect of EMI from switching regulator by using LMS3635-Q1 buck converter. This reference designs yields 7.2% efficiency improvement at most light load current compared to LM53635 buck converter, which achieves 125.25dB SFDR, 99dB SNR and 16.1ENOB.

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Parts approved by Texas Instruments

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λPeak typ.(nm)
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fres(MHz)
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Ø OD(mm)
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SamplesAvailability & Sample
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150060RS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red
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Downloads27 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]625 nm
Emitting ColorRed 
Peak Wavelength [typ.]630 nm
Luminous Intensity [typ.]250 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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Size0603 
Operating Temperature -40 °C up to +85 °C
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Length1.6 mm
Width0.8 mm
Height0.7 mm
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PackagingTape and Reel 
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MountSMT 
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Packaging Unit4000 
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744025006
SPECWE-TPC SMT Tiny Power Inductor, –, –
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
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Size2828 
Operating Temperature -40 °C up to +125 °C
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Length2.8 mm
Width2.8 mm
Height2.8 mm
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Inductance6.8 µH
Rated Current1.1 A
Saturation Current1.3 A
Self Resonant Frequency59 MHz
MountSMT 
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Packaging Unit550 
Pins2 
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744031680
SPECWE-TPC SMT Tiny Power Inductor, –, –
Simu­lation
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
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Size3816 
Operating Temperature -40 °C up to +125 °C
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Length3.8 mm
Width3.8 mm
Height1.65 mm
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Inductance68 µH
Rated Current0.32 A
Saturation Current0.22 A
Self Resonant Frequency12 MHz
MountSMT 
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Packaging Unit1000 
Pins2 
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885012006057
SPECWCAP-CSGP MLCCs 50 V(DC), –, –
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
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Capacitance100 pF
Capacitance±5% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Q-Factor1000 
Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Packaging Unit4000 
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9774050360R
SPECWA-SMSI SMT Steel Spacer with internal Thread M3, –, –
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SMSI SMT Steel Spacer with internal Thread M3
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Operating Temperature -55 °C up to +150 °C
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Length5 mm
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PackagingTape and Reel 
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Inner ThreadM3 
Inner Diameter4.2 mm
Outer Diameter6 mm
Packaging Unit650 
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61300211121
SPECWR-PHD Pin Header - Single, –, –
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length5.08 mm
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PackagingBag 
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Rated Current3 A
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MountTHT 
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Pins2 
TypeStraight 
Working Voltage250 V (AC)
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61300311121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length7.62 mm
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PackagingBag 
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Rated Current3 A
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MountTHT 
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Pins3 
TypeStraight 
Working Voltage250 V (AC)
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