TPS62821DLCR

Features

• DCS-Control™ topology

• Very Low Quiescent Current of 4 µA • Switching Frequency of typically 2.2 MHz

• 1% Feedback Voltage Accuracy (full temp. range)

• Enable (EN) and Power Good (PG)

• Adjustable Output Voltage from 0.6 V to 4V

• Up to 3A Output Current (TPS62823)

• 100% Duty-Cycle Mode

• Internal Soft-Start Circuitry

• Seamless Power Save Mode Transition

• Undervoltage Lockout

• Active Output Discharge

• Cycle-by-Cycle Current Limit

• HICCUP Short-Circuit Protection

• Over Temperature Protection

• Create a Custom Design using the TPS62822 with the WEBENCH® Power Designer

Applications

• POL supply in Portable/Battery Powered Devices

• Factory and Building Automation

• Mobile Computing, Networking Cards

• Solid State Drive

• Data Terminal, Point of Sale

• Servers, Projectors, Printers

Description

The TPS6282x is an all-purpose and easy to use synchronous step-down DC-DC converter with a very low quiescent current of only 4µA. It supplies up to 3A output current (TPS62823) from a 2.4V to 5.5V input voltage. Based on the DCS-Control™ topology it provides a fast transient response.

The internal reference allows to regulate the output voltage down to 0.6V with a high feedback voltage accuracy of 1% over the junction temperature range of -40°C to 125°C. The whole pin-to-pin device family can be used with small 470nH inductors. The TPS6282x include an automatically entered power save mode to maintain high efficiency down to very light loads.

The device features a Power Good signal and an internal soft start circuit. It is able to operate in 100% mode. For fault protection, it incorporates a HICCUP current limit as well as a thermal shutdown. The TPS6282x, packaged in a 2 x 1.5mm QFN-8 package are Pin-to-Pin and BOM-to-BOM compatible.

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