ME2107A50M5G

ME2107 is a series of high-efficiency, low-power PFM-controlled synchronous boost DC-DC converters featuring true enable shutdown and short-circuit protection. The built-in true enable shutdown function completely disconnects input from output when disabled, resulting in extremely low system quiescent current, while the short-circuit protection extends device service life and reliability. ME2107 provides output voltages from 1.8V to 5.0V in 0.1V steps. With a 0.9V input, it can start up and deliver a 3.3V output under loads above 1mA. Ideal for single-cell alkaline or NiMH battery-powered applications. The synchronous boost topology in a SOT23-5 package requires only four external components to boost a low battery input voltage to the required operating voltage.

Applications

• Electronic devices powered by 1~3 dry-cell batteries
• Single-cell lithium battery powered devices
• Digital cameras
• LED flashlights
• LED lighting
• Blood pressure monitors
• Remote-controlled toys
• Wireless headphones
• Wireless mice and keyboards
• Medical devices
• Automotive anti-theft systems
• Chargers
• VCR
• PDA and other handheld electronic devices

Key features

• High efficiency: 93%
• Low startup voltage: 0.9V @ IOUT = 1mA
• Low quiescent current: 7.5uA
• Frequency: 320KHz
• Output voltage: 1.8V~5.0V
• Output accuracy: ±2%
• Output current: 300mA and above
• True shutdown via enable
• Short-circuit protection
• Synchronous rectification