LM25574MT/NOPB - 

DC-DC Switching Step Down Regulator, Adjustable, 6V-42Vin, 1.225V-40Vout, 500mAout, TSSOP-16

LM25574MT/NOPB - DC-DC Switching Step Down Regulator, Adjustable, 6V-42Vin, 1.225V-40Vout, 500mAout, TSSOP-16

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Product Overview

The LM25574MT/NOPB is a SIMPLE SWITCHER® easy-to-use Buck Regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 to 42V, the LM25574 delivers 0.5A of continuous output current with an integrated 750mΩ N-channel MOSFET. The regulator utilizes an emulated current mode architecture which provides inherent line regulation, tight load transient response and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 1MHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC's from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM25574 guarantees robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down and remote shut-down.
  • Master or slave frequency synchronization
  • Adjustable soft-start
  • Emulated current mode control architecture
  • Wide bandwidth error amplifier
  • Built-in protection
  • Integrated 42V, 750mΩ N-channel MOSFET
  • 1.5% Feedback reference accuracy
  • Green product and no Sb/Br


Automotive, Industrial

Product Information

Buck (Step Down)
MSL 1 - Unlimited
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