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Wide VIN Automotive Low IQ Boost Controller

Availability: 4,552


Package | PIN: WQFN (RUM) | 16
Temp: S (-40 to 150)
Package qty | Carrier: 250 | SMALL T&R
Qty Price
1-99 $1.89
100-249 $1.64
250-999 $1.12
1,000+ $0.84


  • AEC-Q100 Qualified:
    • Device Temperature Grade 1: –40°C to +125°C AmbientOperating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESDClassification Level C4B
  • Wide VIN Input Range From 1.5 V to 42 V When VOUT ≥ 5 V (65-V Absolute Maximum)
  • Low Shutdown Current (IQ ≤ 5 µA)
  • Low Standby Current (IQ ≤ 15 µA)
  • Four Programmable Output Voltage Options and Two Selectable Configurations
    • 6.8 V, 7.5 V, 8.5 V, or 10.5 V
    • Start-Stop or E-CallConfigurations
  • Adjustable Switching Frequency From 220 kHz to 2.3 MHz
  • Automatic Wake-Up and Standby Mode Transition
  • Optional Clock Synchronization
  • Boost Status Indicator
  • 1.5-A Peak MOSFET Gate Driver
  • Adjustable Cycle-by-Cycle Current Limit
  • Thermal Shutdown
  • 16-Pin WQFN With Wettable Flanks
  • Create a Custom Design Using the LM5150-Q1 With the WEBENCH® Power Designer

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Texas Instruments  LM5150QRUMTQ1

The LM5150-Q1 device is a wide input range automatic boost controller. The device issuitable for use as a pre-boost converter which maintains the output voltage from a vehicle batteryduring automotive cranking or from a back-up battery during the loss of vehicle battery.

The LM5150-Q1 switching frequency is programmed by a resistor from 220 kHz to 2.3 MHz.Fast switching (≥ 2.2-MHz) minimizes AM band interference and allows for a small solution size andfast transient response.

The LM5150-Q1 operates in low IQ standby mode when the input oroutput voltage is above the preset standby thresholds and automatically wakes up when the outputvoltage drops below the preset wake-up threshold.

The device transients in and out of the low IQ standby mode toextend battery life at light load. A single resistor programs the target output regulation voltageas well as the configuration. Additional features include low shutdown current, boost statusindicator, adjustable cycle-by-cycle current limit, and thermal shutdown.