Texas Instruments TPS62177

Description

The TPS62175/7 is a high efficiency synchronous step-down DC-DC converter, based on the DCS Control™ topology.

With a wide operating input voltage range of 4.75 to 28V, the device is ideally suited for systems powered from multi cell Li-Ion as well as 12V and even higher intermediate supply rails, providing up to 500mA output current.

The TPS62175/7 automatically enters Power Save Mode at light loads, to maintain high efficiency across the whole load range. As well, it features a Sleep Mode to supply applications with advanced power save modes like ultra low power micro controllers. The Power Good output may be used for power sequencing and/or Power On Reset.

The device features a typical quiescent current of 22uA in normal mode and 4.8uA in Sleep Mode. In Sleep Mode, the efficiency at very low load currentscan be increased by as much as 20%. In shutdown mode, the shutdown current is less than 2uA and the output is actively discharged.

The TPS62175/7, available in an adjustable and a fixed output voltage version, is packaged in a small 2x3mm 10-pin WSON package.

Features

• DCS-Control™ Topology
• Input Voltage Range 4.75 to 28V
• Quiescent Current typ. 4.8µA (Sleep Mode)
• 100% Duty Cycle Mode
• Active Output Discharge
• Power Good Output
• Output Current of 500mA
• Output Voltage Range 1V to 6V
• Switching Frequency of Typically 1MHz
• Seamless Power Save Mode Transition
• Undervoltage Lockout
• Short Circuit Protection
• Over Temperature Protection
• Available in 2 x 3 mm 10-pin WSON Package

Typical applications

• Industrial Sensors
• Low Power Supply for Microprocessor
• High Efficiency LDO Alternative
• Ultra Mobile PC
• General 12V/24V Point Of Load Supply
• Embedded PC

More information

• Datasheet
• IC product information