LM5165 - Texas Instruments

LM5165 150-mA Synchronous Buck Converter

The LM5165 device is a compact, easy-to-use, 3V to 65-V, ultra-low IQ synchronous buck converter with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 150-mA of output current can be delivered at fixed output voltages of 3.3 V or 5 V or at an adjustable output. The converter is desi.

Features

• Wide input voltage range of 3 V to 65 V
• 10.5-µA no-load quiescent current
•
  –40°C to 150°C junction temperature range
• Fixed (3.3 V and 5 V) or adjustable output voltages
• Meets EN55022 / CISPR 22 EMI standards
• Integrated 2-Ω PMOS buck switch
  – Supports 100% duty cycle for low dropout
• Integrated 1-Ω NMOS synchronous rectifier
  – Eliminates external rectifier diode
• Programmable current limit setpoint (four levels)
• Selectable PFM or COT mode operation
• 1.223-V ±1% internal voltage reference
• 900-µs internal or programmable soft start
• Active slew rate control for low EMI
• Diode .