TPS61100PWR

双输出单节电池升压转换器

DESCRIPON

The TPS6110x devices provide a complete power supply solution for products powered by either one or two Alkaline, NiCd, or NiMH battery cells. The converter generates two stable output voltages that are either adjusted by an external resistor divider or fixed internally on the chip. It stays in operation with supply voltages down to 0.8 V. The implemented boost converter is based on a fixed frequency, pulse-width-modulation PWM controller using a synchronous rectifier to obtain maximum efficiency.

The maximum peak current in the boost switch is limited to a value of 1800 mA.

FEATURES

• Synchronous 95% Efficient Boost Converter

• Integrated 120 mA LDO for Second Output Voltage

• TSSOP-20 and QFN-24 Package

• 65 µA Typ Total Device Quiescent Current

• 0.8 V to 3.3 V Input Voltage Range

• Adjustable Output Voltage up to 5.5 V and Fixed Output Voltage Options

• Power-Save Mode for Improved Efficiency at Low Output Power

• Battery Supervision

• Power Good Output

• Pushbutton Function for Start-Up

• Low EMI-Converter Integrated Antiringing Switch

• Load Disconnect During Shutdown

• Auto Discharge Allows the Device to Discharge Output Capacitor During Shutdown

• Overtemperature Protection

• EVM Available TPS6110XEVM-216

APPLICATIONS

• All Single or Dual Cell Battery Operated Products Which Use Two System Voltages Like DSP C5X Applications

• Internet Audio Player, PDAs, Digital Still Cameras and Other Portable Equipment