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4-V to 40-V, 1-A Step-Down Converter With High Efficiency Eco-Mode


Package | PIN: DDC | 6
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.37
10-24 $2.12
25-99 $1.97
100-249 $1.72
250-499 $1.58
500-749 $1.33
750-999 $1.09
1000+ $1.00


  • Input Voltage Range: 4 V to 40 V with Transient Protection to 45 V
  • 0.7-MHz Switching Frequency
  • Ultra-High Efficiency at Light Load with Eco-mode™
  • Low Dropout Operation
  • Output Current up to 1 A
  • Precision Enable Input
  • Overcurrent Protection
  • Internal Compensation
  • Internal Soft-Start
  • Small Overall Solution Size (TSOT-6L Package)
  • Create a Custom Design Using the LMR14010A With the WEBENCH® Power Designer

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Texas Instruments  LMR14010ADDCR

The LMR14010A is a PWM DC-to-DC buck (step-down) regulator. With a wide input range from4 V to 40 V, it is suitable for a wide range of applications from industrial to automotive. Anultra-low 1-µA shutdown current prolongs battery life. Operating frequency is fixed at 0.7 MHz,allowing the use of small external components while minimizing output ripple voltage. Soft-startand compensation circuits are implemented internally, limiting the number of externalcomponents.

The LMR14010A is optimized for up to 1-A load current. It has a 0.765-V nominal feedbackvoltage.

The device has built-in protection features such as pulse-by-pulse current limit,thermal sensing and shutdown due to excessive power dissipation. The LMR14010A is available in alow profile TSOT-6L package (2.9 mm × 1.6 mm × 0.85 mm).