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XLM51571QRTERQ1 ACTIVE

Wide VIN boost converter with dual random spread spectrum

Inventory: 5,632  
Limit:  50

Quality information

RoHS
REACH
Lead finish / Ball material Call TI
MSL rating / Peak reflow Call TI
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (℃)
WQFN (RTE) | 16 3,000 | LARGE T&R
-40 to 150
Package | Pins WQFN (RTE) | 16
Package qty | Carrier: 3,000 | LARGE T&R
Operating temperature range (℃) -40 to 150
View TI packaging information

Features for the LM51571-Q1

  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C TA
  • Suited for wide operating range for car battery applications
    • 2.9-V to 45-V input operating range
    • 48-V maximum output (50-V abs max)
    • Minimum boost supply voltage 1.5 V when BIAS ≥ 2.9 V
    • Input transient protection up to 50 V
    • Minimized battery drain
      • Low shutdown current (IQ ≤ 2.6 µA)
      • Low operating current (IQ ≤ 670 µA)
  • Small solution size and low cost
    • Maximum switching frequency up to 2.2 MHz
    • 16-pin QFN package (3 mm × 3 mm) with wettable flanks
    • Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
    • Minimized undershoot during cranking (start-stop application)
    • Accurate current limit (see the Device Comparison Table)
  • EMI mitigation
    • Selectable dual random spread spectrum
    • Lead-less package
  • Higher efficiency with low-power dissipation
    • 45-mΩ RDSON switch
    • Fast switching, small switching loss
  • Avoid AM band interference and crosstalk
    • Optional clock synchronization
    • Dynamically programmable wide switching frequency from 100 kHz to 2.2 MHz
  • Integrated protection features
    • Constant current limiting over input voltage
    • Selectable hiccup mode overload protection
    • Programmable line UVLO
    • OVP protection
    • Thermal shutdown
  • Accurate ±1% accuracy feedback reference
  • Adjustable soft start
  • PGOOD indicator
  • Create a custom design using the LM5157x-Q1 with the WEBENCH Power Designer

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Description for the LM51571-Q1

The LM5157x-Q1 (LM5157-Q1 and LM51571-Q1) device is a wide input range, non-synchronous boost converter with integrated 50-V power switch.

The device can be used in boost, SEPIC, and flyback topologies. The device can start up from a 1-cell battery with a minimum of 2.9 V. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 2.9 V.

Pricing


Qty Price (USD)
1-99 3.099
100-249 2.715
250-999 1.904
1,000+ 1.534