RAA211803数据手册Renesas中文资料规格书

描述 Description

The RAA211803 is a tiny, easy-to-use, ultra-low quiescent current (IQ) buck regulator with a wide input voltage range of 7V to 80V and up to 300mA of output current with a fixed 3.3V output.

Available in a TSOT23-5 package, the device offers comprehensive protections, including VIN undervoltage lockout (UVLO), VOUT overvoltage protection (OVP), overcurrent protection, and over-temperature protection.

特性 Features

• 7V to 80V input supply range
• Up to 300mA output current
• IQ = 5.5μA at 80V, at no load conditions, switching
• IQ = 4.5μA at 80V at no load and no switching conditions
• Fixed 3.3V VOUT
• Minimum on-time of 75ns
• Variable frequency operation, frequency programmed by external inductor (10μH to 33μH)
• Pre-bias, monotonic, and smooth start-up
• Protections
• Overcurrent (OC) limit
• Input undervoltage lockout (UVLO)
• Over-temperature protection (OTP)
• Output overvoltage protection (OVP)

应用 Application

应用
• General-purpose or LDO replacement
• Industrial power supplies
• Embedded systems and I/O supplies
• E-bikes
• power tools
• Home/Industrial automation