Startseite Energiemanagement AC/DC & DC/DC converters (integrated FET)
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AC/DC & DC/DC converters (integrated FET)

LM53635-Q1

AKTIV

Synchroner Abwärtswandler mit 2,1 MHz (3,5 A, 36 V) für Fahrzeuganwendungen

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Datenblatt

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open-in-new Alternativen vergleichen
Gleiche Funktionalität, andere Pinbelegung als verglichener Baustein
LM63635-Q1 AKTIV Abwärtsspannungswandler, 3,5 bis 32 V, 3,25 A, mit Spread-Spectrum Available in wettable flank WSON package
LMQ62440-Q1 AKTIV Synchroner Abwärtswandler für die Automobilindustrie, 3 36 V, 4 A, rauscharm, Festfrequenz Smaller footprint, lower EMI with dual-random spread spectrum and lower IQ.

LM53635-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Iout (max) (A) 3.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Topology Buck Type Converter Switching frequency (min) (kHz) 1850 Switching frequency (max) (kHz) 2350 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 3.2 Vout (max) (V) 10 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000018
Iout (max) (A) 3.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Topology Buck Type Converter Switching frequency (min) (kHz) 1850 Switching frequency (max) (kHz) 2350 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 3.2 Vout (max) (V) 10 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000018
VQFN-HR (RNL) 22 20 mm² 5 x 4
  • AEC-Q100 automotive qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM classification level 2
    • Device CDM classification level C6
  • –40°C to +150°C junction temperature range
  • 15-µA quiescent urrent at no load (typical) with 3.3-V output
  • 5.0-mm × 4.0-mm VQFN package with or without wettable flanks and 0.6-mm VIN spacing
  • Low EMI and switch noise
  • Spread spectrum option
  • External frequency synchronization
  • RESET output with internal filter and 3-ms release timer
  • Pin-selectable forced PWM mode
  • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
  • 0.6-V dropout at 3.5 A at 105°C TA
  • ±1% output voltage tolerance (–40°C to 125°C TJ)
  • Available with fixed 5-V, 3.3-V or adjustable output
  • AEC-Q100 automotive qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM classification level 2
    • Device CDM classification level C6
  • –40°C to +150°C junction temperature range
  • 15-µA quiescent urrent at no load (typical) with 3.3-V output
  • 5.0-mm × 4.0-mm VQFN package with or without wettable flanks and 0.6-mm VIN spacing
  • Low EMI and switch noise
  • Spread spectrum option
  • External frequency synchronization
  • RESET output with internal filter and 3-ms release timer
  • Pin-selectable forced PWM mode
  • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
  • 0.6-V dropout at 3.5 A at 105°C TA
  • ±1% output voltage tolerance (–40°C to 125°C TJ)
  • Available with fixed 5-V, 3.3-V or adjustable output

The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625-Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads.

The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625-Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LM53625/35-Q1, 2.5-A or 3.5-A, 36-V Synchronous, 2.1-MHz, Step-Down DC-DC Converter datasheet (Rev. B) PDF | HTML 29 Jul 2021
White paper Time-Saving and Cost-Effective Innovations for EMI Reduction (Rev. A) PDF | HTML 28 Nov 2023
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 15 Apr 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Technical article Optimizing flip-chip IC thermal performance in automotive designs PDF | HTML 11 Dez 2019
Technical article How a DC/DC converter package and pinout design can enhance automotive EMI perform PDF | HTML 04 Sep 2018
Technical article A review of EMI standards, part 2 – radiated emissions PDF | HTML 05 Jul 2018
Technical article Effects of IC package on EMI performance PDF | HTML 22 Mai 2018
Application note Designing High Performance, Low-EMI, Automotive Power Supplies 30 Sep 2017
Technical article Discrete SBCs: versatile and scalable solutions for any application PDF | HTML 27 Jul 2017
Technical article Build a sub-20W CISPR25 Class 5 power design for automotive infotainment processor PDF | HTML 02 Mai 2017
Design guide Automotive Battery to Point-of-Load Power Solution for TDA2xx Design Guide (Rev. B) 31 Jan 2017
Technical article What to consider when designing an automotive power supply PDF | HTML 27 Jun 2016

Design und Entwicklung

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LM53635AQEVM — LM53635A-Q1 3,5 A, 5,0 V, einstellbarer Ausgang, großer Vin, Synchron-Abwärtswandler mit 2,1 MHz für

This EVM demonstrates the capabilities of the LM53635A automotive integrated buck converter. The EVM has an EMI filter on the back side that assists with noise reduction. The user can choose to bypass that EMI filter using  VIN1/GND1 posts . The EVM operates from an 3.5V to 36V input (up to (...)
Benutzerhandbuch: PDF
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LM53635LQEVM — LM53635L-Q1 3,5 A, 5,0 V, Fester Ausgang großer Vin, Synchron-Abwärtswandler mit 2,1 MHz für die Aut

This EVM demonstrates the capabilities of the LM53635L automotive integrated buck converter. The EVM has an EMI filter on the back side that assists with noise reduction and Spread Spectrum build in. The user can choose to bypass that EMI filter using  VIN1/GND1 posts . The EVM operates from (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
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LM53635MQEVM — LM53635M-Q1 3,5 A, 5,0 V, einstellbarer Ausgang, Abwärtswandler mit 2,1 MHz für die Automobilindustr

This EVM demonstrates the capabilities of the LM53635M automotive integrated buck converter. The EVM has an EMI filter on the back side that assists with noise reduction and Spread Spectrum build in. The user can choose to bypass that EMI filter using  VIN1/GND1 posts . The EVM operates from (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

LM53635NQEVM — LM53635N-Q1 3,5 A, 3,3 V, fester Ausgang, großer Vin, Synchron-Abwärtswandler, 2,1 MHz für die Autom

This EVM demonstrates the capabilities of the LM53635N automotive integrated buck converter. The EVM has an EMI filter on the back side that assists with noise reduction and Spread Spectrum build in. The user can choose to bypass that EMI filter using  VIN1/GND1 posts . The EVM operates from (...)
Benutzerhandbuch: PDF
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Simulationsmodell

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LM536355-Q1 PSpice Transient Model

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LM536355-Q1 Unencrypted PSpice Transient Model

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LM53635A-Q1 PSpice Transient Model

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LM53635A-Q1 Unencrypted PSpice Transient Model

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