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 LM5576-Q1
- LM5576-Q1 is an automotive grade product that is AEC-Q100 grade 1 qualified (−40°C to + 125°C operating junction temperature)
- Ultra-wide input voltage range from 6V to 75V
- Integrated 75V, 170mΩ N-channel MOSFET
- Adjustable output voltage as low as 1.225V
- 1.5% feedback reference accuracy
- Operating frequency adjustable between 50kHz and 500kHz with single resistor
- Controller or peripheral 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 LM5576-Q1 device with the WEBENCH Power Designer
Description for the LM5576-Q1
The LM5576-Q1 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 6V to 75V, the LM5576-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 500kHz 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 LM5576-Q1 makes sure of robustness with cycle-by-cycle current limit, short-circuit protection, thermal shutdown, and remote shutdown. The device is available in a power-enhanced, 20-pin HTSSOP package that features an exposed die attach pad for thermal dissipation. The LM5576-Q1 is supported by the full suite of WEBENCH online design tools.