Texas Instruments TPS62153

Description

The TPS6215X family is an easy to use synchronous step down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.5MHz allows the use of smallinductors and provides fast transient response as well as high output voltage accuracy by utilization of the DCS-Control™ topology.With its wide operating input voltage range of 3V to 17V, the devices are ideally suited for systems powered from either a Li-Ion or other batteries as well as from 12V intermediate power rails. It supports up to 1A continuous output current at output voltages between 0.9V and 6V (with 100% duty cycle mode).The output voltage startup ramp is controlled by the soft-start pin, which allows operation as either a standalone power supply or in tracking configurations.Power sequencing is also possible by configuring the Enable and open-drain Power Good pins.In Power Save Mode, the devices show quiescent current of about 17μA from VIN. Power Save Mode, entered automatically and seamlessly if load is small, maintains high efficiency over the entire load range.In Shutdown Mode, the device is turned off and shutdown current consumption is less than 2μA.The device, available in adjustable and fixed output voltage versions, is packaged in a 16-pin QFN package measuring 3 × 3 mm (RGT).

Features

• DCS-ControlTM Topology
• Input Voltage Range: 3 to 17V
• Up to 1A Output Current
• Adjustable Output Voltage from 0.9 to 6V
• Pin-Selectable Output Voltage (nominal, + 5%)
• Programmable Soft Start and Tracking
• Seamless Power Save Mode Transition
• Quiescent Current of 17µA (typ.)
• Selectable Operating Frequency
• Power Good Output
• 100% Duty Cycle Mode
• Short Circuit Protection
• Over Temperature Protection
• Available in a 3 × 3 mm, QFN-16 Package

Note: 1) InductorS 3.3µH and 1.0µH are used.
2) Switching frequency used depending on FSW pin.

Typical applications

• Standard 12V Rail Supplies
• LDO replacement
• Solid-State Disk Drives
• Mobile PC's, Tablet, Modems, Cameras
• Embedded Systems
• POL Supply from Single or Multiple Li-Ion battery

More information

• Datasheet
• IC product information