The LM25576Q0MH/NOPB 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 LM25576Q0MH/NOPB delivers 3 A of continuous output current with an integrated170-m 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 LM25576Q0MH/NOPB 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-20 package featuring an exposed dieattach pad for thermal dissipation. The LM25576Q0MH/NOPB is supported by the full suite ofWEBENCH On-Line design tools.
Feature
- Integrated 42-V, 170-m 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-20EP (Exposed Pad)
- Create a Custom Design Using the LM25576 With the WEBENCH Power Designer
