Home Power management AC/DC & DC/DC controllers (external FET)
Home
Power management
AC/DC & DC/DC controllers (external FET)
NEW

LMR51460-Q1

ACTIVE

Automotive, 36V 6A synchronous buck converter with low Iq

Order now
Data sheet

LMR51460-Q1

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 3 Vin (max) (V) 36 Iout (max) (A) 6 Operating temperature range (°C) -40 to 125 Control mode current mode Topology Buck Controller Rating Automotive Vout (min) (V) 1 Vout (max) (V) 38 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Synchronous Rectification Iq (typ) (µA) 0.25 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
Vin (min) (V) 3 Vin (max) (V) 36 Iout (max) (A) 6 Operating temperature range (°C) -40 to 125 Control mode current mode Topology Buck Controller Rating Automotive Vout (min) (V) 1 Vout (max) (V) 38 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Synchronous Rectification Iq (typ) (µA) 0.25 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
WSON (DRR) 12 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Supports automotive system requirements:
    • Wide input voltage range: 4V to 36V
    • 6A continuous output current
    • ±1.0% tolerance voltage reference at room temperature
    • Minimum switching-on time: 75ns (typical)
    • Low quiescent current: 25µA
    • Adjustable frequency: 200kHz to 1MHz
    • Frequency spread spectrum
    • Protection features:
      • Precision enable input
      • Open-drain PGOOD
      • VIN undervoltage lockout (UVLO)
      • Cycle-by-cycle current limiting
      • Short-circuit protection with hiccup mode
      • Thermal shutdown
  • Small design size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • WSON-12 package
  • PFM and FPWM options in pin-to-pin compatible package
  • Create a custom design using the LMR51460-Q1 with the WEBENCH Power Designer
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Supports automotive system requirements:
    • Wide input voltage range: 4V to 36V
    • 6A continuous output current
    • ±1.0% tolerance voltage reference at room temperature
    • Minimum switching-on time: 75ns (typical)
    • Low quiescent current: 25µA
    • Adjustable frequency: 200kHz to 1MHz
    • Frequency spread spectrum
    • Protection features:
      • Precision enable input
      • Open-drain PGOOD
      • VIN undervoltage lockout (UVLO)
      • Cycle-by-cycle current limiting
      • Short-circuit protection with hiccup mode
      • Thermal shutdown
  • Small design size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • WSON-12 package
  • PFM and FPWM options in pin-to-pin compatible package
  • Create a custom design using the LMR51460-Q1 with the WEBENCH Power Designer

The LMR51460-Q1 is a wide-VIN, easy-to-use, synchronous buck converter capable of driving up to 6A load current. With a wide input range of 4V to 36V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR51460-Q1 features adjustable switching frequency from 200kHz to 1MHz with an external resistor, which provides the flexibility to optimize either efficiency or external component size. The device has pulse frequency modulation (PFM version) to realize high efficiency at light load, and forced pulse width modulation (FPWM version) to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR51460-Q1 is available in a WSON-12 package.

The LMR51460-Q1 is a wide-VIN, easy-to-use, synchronous buck converter capable of driving up to 6A load current. With a wide input range of 4V to 36V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR51460-Q1 features adjustable switching frequency from 200kHz to 1MHz with an external resistor, which provides the flexibility to optimize either efficiency or external component size. The device has pulse frequency modulation (PFM version) to realize high efficiency at light load, and forced pulse width modulation (FPWM version) to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR51460-Q1 is available in a WSON-12 package.
filter Find other AC/DC & DC/DC controllers (external 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 2
Type Title Date
* Data sheet LMR51460-Q1 36V, 6A , Automotive, Synchronous Buck Converter With Low IQ datasheet PDF | HTML 20 Aug 2024
Functional safety information LMR51460-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 13 Aug 2024

Design & development

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

Evaluation board

LMR51450EVM — LMR51450 synchronous step-down converter evaluation module

The LMR51450 evaluation module (EVM) is designed to help customers evaluate the performance of the LMR51450 synchronous step-down voltage converter. This EVM implements the LMR51450 in a 12-pin WSON Package. The EVM is capable of delivering 5 V or 3.3 V output voltage and up to 5 A load current (...)
User guide: PDF | HTML
Not available on TI.com
Package Pins CAD symbols, footprints & 3D models
WSON (DRR) 12 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