LM5180-Q1
Overview
The LM5180-Q1 is a primary-side regulated (PSR) flyback converter with high efficiency over a wide input voltage range of 4.5 V to 65 V. The isolated output voltage is sampled from the primary-side flyback voltage, eliminating the need for an optocoupler, voltage reference, or third winding from the transformer for output voltage regulation.
- 1 AEC-Q100-qualified for automotive applications - Device temperature grade 1: -40°C to 125°C ambient temperature range
- Designed for reliable and rugged applications - Wide input voltage range of 4.5 V to 65 V - Robust solution with only one component crossing the isolation barrier - ±1.5% total output regulation accuracy - Optional VOUT temperature compensation - 6-ms internal or programmable soft start - Input UVLO and thermal shutdown protection - Hiccup-mode overcurrent fault protection - -40°C to +150°C junction temperature range
- Integration reduces solution size and cost - Integrated 100-V, 0.4-Ω power MOSFET - No opto-coupler or transformer auxiliary winding required for VOUT regulation - Low EMI operation to meet CISPR 25
- High efficiency PSR flyback operation - Quasi-resonant switching in boundary conduction mode (BCM) at heavy load - External bias option for improved efficiency - Single- and multi-output implementations
- Create a custom regulator design using WEBENCH® Power Designer
