TPS63070RNMR

The TPS6307x is a high-efficiency buck-boost converter with low quiescent current, designed for applications where the input voltage can be higher or lower than the output voltage. The output current can be up to 2A in both buck and boost modes. The buck-boost converter is based on a fixed-frequency, pulse-width modulation (PWM) controller that uses synchronous rectification to achieve maximum efficiency. At low load currents, the converter enters a power-save mode to maintain high efficiency across a wide load current range. The converter can be disabled to minimize battery consumption. During shutdown, the load is disconnected from the battery. The device is available in a 2.5mm × 3mm QFN package.

Applications

• Dual-cell lithium-ion applications
• Industrial metering equipment
• Digital still cameras (DSC) and portable camcorders
• Notebook computers
• Ultra-portable mobile PCs and mobile internet devices
• Personal medical products

Key features

• Input voltage range: 2.0V to 16V
• Output voltage range: 2.5V to 9V
• Up to 95% efficiency
• DC accuracy of +/-1% in PWM mode
• DC accuracy of +3%/-1% in PFM mode
• 2A output current in buck mode
• 2A output current in boost mode (VIN = 4V; Vout = 5V)
• Precision enable input supports:
• User-defined UVLO
• Accurate sequencing
• Automatic transition between buck and boost mode
• Typical quiescent current: 50μA
• Fixed and adjustable output voltage options
• Output discharge option
• Power-save mode for improved efficiency at low output power
• 2.4MHz forced fixed operating frequency and synchronization option
• Power-good output
• Easy output voltage change via VSEL
• Load disconnect during shutdown
• Thermal protection
• Input/output overvoltage protection
• QFN package