Packaging information
| Package | Pins HTSSOP (PWP) | 20 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 73 | TUBE |
Features for the LM25576
- Integrated 42-V, 170-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-20EP (Exposed Pad)
- Create a Custom Design Using the LM25576 With the WEBENCH® Power Designer
Description for the LM25576
The LM25576 is an 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 V to 42 V, the LM25576 delivers 3 A of continuous output current with an integrated 170-mΩ 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 50 kHz to 1 MHz 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 LM25576 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced HTSSOP-20 package featuring an exposed die attach pad for thermal dissipation. The LM25576 is supported by the full suite of WEBENCH® On-Line design tools.