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6V to 42V, 1.5A Step-Down DC/DC Switching Regulator


Package | PIN: PWP | 16
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.39
10-24 $3.06
25-99 $2.84
100-249 $2.49
250-499 $2.34
500-749 $1.99
750-999 $1.68
1000+ $1.60


  • Integrated 42-V, 330-mΩ N-Channel MOSFET
  • Ultra-Wide Input Voltage Range From 6 V to 42 V
  • Adjustable Output Voltage as Low as 1.225 V
  • 1.5% Feedback Reference Accuracy
  • Operating Frequency Adjustable Between 50 kHz and 1 MHz With Single Resistor
  • Master or Slave Frequency Synchronization
  • Adjustable Soft-Start
  • Emulated Current Mode Control Architecture
  • Wide Bandwidth Error Amplifier
  • Built-In Protection
  • HTSSOP-16EP (Exposed Pad)
  • Create a Custom Design Using the LM25575 With the WEBENCH® Power Designer

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Texas Instruments  LM25575MHX/NOPB

The LM25575 is an easy to use buck regulator which allows design engineers to design andoptimize a robust power supply using a minimum set of components. Operating with an input voltagerange of 6 V to 42 V, the LM25575 delivers 1.5-A of continuous output current with an integrated330-mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture whichprovides inherent line regulation, tight load transient response, and ease of loop compensationwithout the usual limitation of low-duty cycles associated with current mode regulators. Theoperating frequency is adjustable from 50-kHz to 1-MHz to allow optimization of size andefficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557xfamily to self-synchronize or to synchronize to an external clock. The LM25575 ensures robustnesswith cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remoteshut-down. The device is available in a power enhanced HTSSOP-16 package featuring an exposed dieattach pad for thermal dissipation. The LM25575 is supported by the full suite ofWEBENCH® On-Line design tools.