Texas Instruments LM65680-Q1EVM Evaluation Module (EVM)
Texas Instruments LM65680-Q1EVM Evaluation Module (EVM) is designed to help users evaluate the LM65680-Q1. The LM65680-Q1 is a synchronous buck DC-DC regulator that employs synchronous rectification to achieve high conversion efficiency in a small footprint. The Texas Instruments LM65680-Q1EVM operates over a wide input voltage range of 6V to 70V, which offers an outsized voltage rating and operating margin to withstand supply-rail voltage transients while providing a regulated output of 5V. The output voltage has better than 1% setpoint accuracy and is adjusted by modifying the feedback resistor values, permitting the user to customize the output voltage as needed.
Features
- Wide input voltage operating range of 6V to 70V
- Adjustable output down to 0.8V
- Switching frequency of 400kHz externally synchronizable up or down by 20%
- Designed for low Electromagnetic Interference (EMI)
- Dual-random spread spectrum EMI mitigation
- Meets CISPR 25 Class 5 and UNECE Reg 10 EMI standards
- Peak current-mode control architecture provides fast line and load transient response
- Integrated slope compensation adaptive with switching frequency
- Forced pulsed width modulation (FPWM) or pulsed frequency modulation (PFM) operation
- Optional internal or external loop compensation
- Full-load efficiency of 91.7% at 12VIN, 91.5% at 24VIN and 90% at 48VIN
- 15µA no load operating current at 48VIN
- Integrated high-side and low-side power MOSFETs
- Overcurrent protection (OCP) with hiccup mode for sustained overload conditions
- SYNC OUT signal 180° out-of-phase with internal clock
- Power-Good (PG) signal with 100kΩ pullup resistor to VOUT
- Internal 5.3ms soft start (SS)
- Fully assembled, tested, and proven PCB layout
Kit Contents
- LM65680-Q1EVM circuit board
- Evaluation module disclaimer Read Me
- Prototype evaluation module disclaimer Read Me
Applications
- Advanced Driver Assistance Systems (ADAS)
- Automotive infotainment and cluster
- Hybrid, electric, and powertrain systems
Board Layout
Related Buck DC-DC Converters
Texas Instruments LM65680/60/40 Synchronous Buck DC-DC Converters
These devices are designed for low EMI, high power density, and excellent conversion efficiency.