TPS63061DSCR

The TPS6306x devices provide a power supply solution for products powered by 3 to 6 alkaline, NiCd, or NiMH cells, or a single lithium-ion or lithium-polymer battery. When using a dual lithium-ion or lithium-polymer battery, the output current can be increased up to 2A while discharging the battery voltage down to 5V or lower. This buck-boost converter is based on a fixed-frequency, PWM controller using synchronous rectification for maximum efficiency. At low load currents, the converter enters power save mode to maintain high efficiency across a wide load current range. Power save mode can be disabled to force the converter to operate at a fixed switching frequency. The maximum average current through the switches is limited to 2.5A (typical). The output voltage can be programmed using an external resistor divider or internally fixed on-chip. The converter can be disabled to significantly reduce battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 10-pin small outline no-lead (SON) PowerPAD package, 3mm × 3mm (DSC).

Applications

• Dual Li-Ion battery applications
• Digital cameras and camcorders
• Notebook computers
• Industrial metering equipment
• Ultra-portable mobile PCs and mobile internet devices
• Personal medical products
• High-power LEDs

Key features

• Up to 93% efficiency
• 2A/1A output current in 5V buck mode
• 1.3A output current in 5V boost mode (VIN > 4V)
• Automatic transition between buck and boost modes
• Typical quiescent current less than 30μA
• Input voltage range: 2.5V to 12V
• 2.5V to 8V fixed and adjustable output voltage options
• Power save mode for improved efficiency at low output power
• 2.4MHz forced fixed operating frequency with synchronization capability
• Power good output
• Buck-boost interleaved control
• Load disconnect during shutdown
• Over-temperature protection
• Overvoltage protection
• 3mm x 3mm small outline no-lead (SON)-10 package