Torex XC9145

The XC9145 series is a synchronous step-up DC/DC converter with a 200mΩ N-channel driver FET and a 270mΩ synchronous P-channel switching FET built-in. 

The ultra-low current consumption of 400nA and PWM/PFM auto-switching control combine to dramatically improve efficiency at load current levels of 10µA or less (89.9%@VIN=2.4V, VOUT=3.3v, IOUT=10µA).

Output voltage can be set from 3.0V ~ 5.5V (±2%) in 0.1V increments and the XC9145 can support up to 430mA IOUT @ VOUT=5.0V, VBAT=3.3V. Start-up voltage is 1.6V but the XC9145 can then operate down as low as 0.65V in operation.

The XC9145 series can significantly reduce the power consumption of battery-powered devices which consume a large percentage of power when the system is in standby mode.

Features

• Input Voltage: 0.65V ~ 5.5V
• Output Voltage: 3.0V ~ 5.5V
• Output Current: 430mA (VOUT=5.0V, VBAT=3.3V)
• Quiescent Current: 400nA 
• Switching Frequency: 1.2MHz
• Load Disconnect & Soft Start Function
• Packages: USP-6C, WLP-6-05

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Benefits

• Ultra-Low Power Consumption
  • 400nA Quiescent Current
  • 0µA typ 0.1µA max in Shutdown Mode 
• Space Saving Solution
  • Ultra-Small WLP-6-05 Package (1.08 x 1.28 x 0.4mm high)
  • Comes in a package only 1.1 mm x 1.3 mm and contributes to the reducing the battery size required
• Long Battery Life 
  • High efficiency levels even at low output current

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Applications

• Low power wireless communication products
• Low power IoT module
• Battery-powered medical devices / Wearable devices (Health monitoring, Fitness devices)
• Remote controls
• Primary battery portable systems
• Metering devices / Smart meter (Gas / Water / Temperature)
• Home Security / Home Automation
• Energy Harvest

Block diagram