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9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator

Qty Price
1-9 $2.44
10-24 $2.20
25-99 $2.04
100-249 $1.79
250-499 $1.68
500-749 $1.43
750-999 $1.20
1000+ $1.15


  • Operating Input Voltage Range: 6 V to 95 V
  • Integrated 100-V, N-Channel Buck Switch
  • Internal VCC Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • On-Time Varies Inversely With Line Voltage
  • Operating Frequency Remains Constant With Varying Line Voltage and Load Current
  • Adjustable Output Voltage
  • Highly Efficient Operation
  • Precision Internal Reference
  • Low Bias Current
  • Intelligent Current Limit Protection
  • Thermal Shutdown
  • 8-Pin VSSOP and WSON Packages
  • Create a Custom Design Using the LM5008 With the WEBENCH® Power Designer

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Texas Instruments  LM5008SDCX/NOPB

The LM5008 350-mA step-down switching converter features all of the functions needed toimplement a low-cost and efficient buck regulator. This high-voltage converter has an integrated100-V N-channel buck switch and operates over an input voltage range of 9 V to 95 V. The device iseasy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSONpackages. The converter uses a hysteretic control scheme with a PWM on-time inversely proportionalto VIN. This feature allows the operating frequency to remain relativelyconstant. The hysteretic control requires no loop compensation. An intelligent current limit isimplemented with forced off-time, which is inversely proportional to VOUT.This scheme ensures short-circuit protection while providing minimum foldback. Other protectionfeatures include: thermal shutdown, VCC undervoltage lockout, gate driveundervoltage lockout, and maximum duty cycle limiter.