Packaging information
| Package | Pins HTSSOP (PWP) | 20 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the LM25576-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Integrated 42V, 170mΩ N-channel MOSFET
- Ultra-wide input voltage range from 6V to 42V
- Adjustable output voltage as low as 1.225V
- 1.5% feedback reference accuracy
- Operating frequency adjustable between 50kHz and 1MHz with single resistor
- Controller or peripheral frequency synchronization
- Adjustable soft-start
- Emulated current mode control architecture
- Wide bandwidth error amplifier
- Built-in protection
- HTSSOP-20 EP (exposed pad)
- Create a custom design using the LM25576-Q1 with the WEBENCH Power Designer
Description for the LM25576-Q1
The LM25576-Q1 is an easy-to-use buck regulator which allows users to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6V to 42V, the LM25576-Q1 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET. The regulator uses 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 ICs from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM25576-Q1 establishes robustness with a 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-Q1 is supported by the full suite of WEBENCH On-Line design tools.