Home Power management AC/DC & DC/DC converters (integrated FET)
Home
Power management
AC/DC & DC/DC converters (integrated FET)

LM53600-Q1

ACTIVE

Automotive 3.5-V to 36-V, 650-mA synchronous 2.1-MHz step-down converter

Order now
Data sheet

LM53600-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 0.65 Vin (min) (V) 3.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 1890 Switching frequency (max) (kHz) 2400 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Spread Spectrum Control mode current mode Vout (min) (V) 3.3 Vout (max) (V) 9.9 Iq (typ) (µA) 23 Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 0.65 Vin (min) (V) 3.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 1890 Switching frequency (max) (kHz) 2400 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Spread Spectrum Control mode current mode Vout (min) (V) 3.3 Vout (max) (V) 9.9 Iq (typ) (µA) 23 Duty cycle (max) (%) 98
WSON (DSX) 10 9 mm² 3 x 3
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM classification level 2
    • Device CDM classification level C5
  • –40°C to 150°C junction temperature range (available)
  • Wide operating input voltage: 3.55 V to 36 V (with transient to 42 V)
  • Spread spectrum option available
  • 2.1-MHz fixed switching frequency
  • Low quiescent current: 23 µA
  • Shutdown current: 1.8 µA
  • Adjustable, 3.3-V, or 5-V output
  • Maximum current load: 650 mA for LM53600-Q1, 1000 mA for LM53601-Q1
  • Pin-selectable forced PWM mode
  • RESET output with filter and delay release
  • External frequency synchronization
  • Internal compensation, soft start, current limit, and UVLO
  • 10-lead, 3-mm × 3-mm SON package with wettable and non-wettable flanks
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM classification level 2
    • Device CDM classification level C5
  • –40°C to 150°C junction temperature range (available)
  • Wide operating input voltage: 3.55 V to 36 V (with transient to 42 V)
  • Spread spectrum option available
  • 2.1-MHz fixed switching frequency
  • Low quiescent current: 23 µA
  • Shutdown current: 1.8 µA
  • Adjustable, 3.3-V, or 5-V output
  • Maximum current load: 650 mA for LM53600-Q1, 1000 mA for LM53601-Q1
  • Pin-selectable forced PWM mode
  • RESET output with filter and delay release
  • External frequency synchronization
  • Internal compensation, soft start, current limit, and UVLO
  • 10-lead, 3-mm × 3-mm SON package with wettable and non-wettable flanks

The LM53600-Q1 and LM53601-Q1 synchronous buck regulator devices are optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Load current up to 650 mA is supported by the LM53600-Q1, while the LM53601-Q1 supports up to 1000 mA. Advanced high-speed circuitry allows the LM53600-Q1 and LM53601-Q1 devices 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 the device to regulate a 3.3-V output from an input voltage of only 3.8 V. The input voltage range up to 36 V, with transient tolerance of up to 42 V, eases input surge protection design. An open drain reset output, with filtering and delayed release, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transitions between PWM and PFM modes, along with a quiescent current of only 23 µA, ensures high efficiency and superior transient response at all loads. Few external components are needed allowing the generation of compact PCB layout. While the LM53600-Q1 and LM53601-Q1 devices are Q1 rated, electrical characteristics are ensured across a junction temperature range of –40°C up to 150°C.

The LM53600-Q1 and LM53601-Q1 synchronous buck regulator devices are optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Load current up to 650 mA is supported by the LM53600-Q1, while the LM53601-Q1 supports up to 1000 mA. Advanced high-speed circuitry allows the LM53600-Q1 and LM53601-Q1 devices 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 the device to regulate a 3.3-V output from an input voltage of only 3.8 V. The input voltage range up to 36 V, with transient tolerance of up to 42 V, eases input surge protection design. An open drain reset output, with filtering and delayed release, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transitions between PWM and PFM modes, along with a quiescent current of only 23 µA, ensures high efficiency and superior transient response at all loads. Few external components are needed allowing the generation of compact PCB layout. While the LM53600-Q1 and LM53601-Q1 devices are Q1 rated, electrical characteristics are ensured across a junction temperature range of –40°C up to 150°C.
filter Find other AC/DC & DC/DC converters (integrated FET)
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Type Title Date
* Data sheet LM53600/01-Q1 0.65-A/1-A, 36-V Synchronous, 2.1-MHz Automotive Step-Down DC/DC Converter datasheet (Rev. D) PDF | HTML 14 May 2021
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
Application note Designing High Performance, Low-EMI, Automotive Power Supplies 30 Sep 2017
Technical article Power over coax: A design guide for automotive applications PDF | HTML 26 Aug 2016
Technical article The value of wettable flank-plated QFN packaging for automotive applications PDF | HTML 03 Feb 2016
EVM User's guide LM53600MAEVM and LM53601MAEVM User's Guide 15 Oct 2015
EVM User's guide LM53600NAEVM and LM53601LAEVM User's Guide 15 Oct 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LM53600MAEVM — LM53600-Q1 Adjustable Output, 650mA Buck Regulator Evaluation Module With Spread Spectrum

LM53600MAEVM Demonstrates the capabilities of the LM53600MQDSX Automotive Integrated Buck regulator. It features all the input necessary to configure and operate the device. The EVM has an EMI filter on the back side. The user can choose to bypass that filter using the available posts close to the (...)

User guide: PDF
Not available on TI.com
Evaluation board

LM53600NAEVM — LM53600-Q1 3.3V Output, 650mA Buck Regulator Evaluation Module With Spread Spectrum

LM53600NAEVM demonstrates the capabilities of the LM53600NQDSX Automotive Integrated Buck regulator. It features all the input necessary to configure and operate the device. The EVM has an EMI filter on the back side. The user can choose to bypass that filter using the available posts close to the (...)

User guide: PDF
Not available on TI.com
Simulation model

LM536003-Q1 PSpice Transient Model

SNAM180.ZIP (149 KB) - PSpice Model
Download
Simulation model

LM536003-Q1 Unencrypted PSpice Transient Model

SNAM181.ZIP (8 KB) - PSpice Model
Download
Simulation model

LM536005-Q1 PSpice Transient Model

SNAM185.ZIP (139 KB) - PSpice Model
Download
Simulation model

LM536005-Q1 Unencrypted PSpice Transient Model

SNAM184.ZIP (8 KB) - PSpice Model
Download
Simulation model

LM53600A-Q1 PSpice Transient Model

SNAM182.ZIP (142 KB) - PSpice Model
Download
Simulation model

LM53600A-Q1 Unencrypted PSpice Transient Model

SNAM183.ZIP (8 KB) - PSpice Model
Download
Reference designs

TIDA-00901 — Automotive 12-V, 200-W (20-A) BLDC Motor Drive Reference Design

This is a three-phase brushless DC motor drive designed to operate in 12-V automotive applications such as HVAC blowers. This reference design drives motors in the 200-W range and can handle currents up to 20 A. Utilizing either sensorless operation or external hall-effect sensors, the (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01003 — Automotive 1MP Camera Module Reference Design with YUV422, FPD-Link III and 4V-36V Power Over Coax

The automotive 1MP camera module reference design uses a CMOS imager to provide multiple uncompressed video formats over FPD-Link III. Supported video formats are 8- and 10-bit YUV422. TIs FPD-Link III SerDes technology enables the transmission of video data, bidirectional control signals and (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
WSON (DSX) 10 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos