TPS62693YFDR Integrated Circuits (ICs)

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TPS62693YFDR Application Field and Working Principle

When it comes to PMIC (Power Management Integrated Circuit), one of the best solutions for low-signal voltage regulation is DC-DC Switching Regulators. DC-DC switching regulators, otherwise known as switching regulators, convert voltage from one level to another, usually from higher to lower power levels. The TPS62693YFDR are DC-DC Switching Regulators from Texas Instruments that serve as low-noise step-down regulators.

The TPS62693YFDR

The TPS62693YFDR is a step-down regulator designed to convert an input voltage as high as 5.5V down to a programmable output voltage as low as 0.8V at up to 1.5A. The regulator is capable of providing up to 90% peak efficiency depending on the application, making it an ideal choice for portable and battery-powered applications such as cameras, cell phones, and MP3 players. It is also suitable for 3.3V-5V input, low voltage, low ripple applications.

The TPS62693YFDR includes an internal high-side MOSFET, which allows series Li-ion to LiFePO4 batteries to be connected in the input without any external components, simplifying the power supply design. The ACPL-C87B-000E is a high-side MOSFET for additional protection for the device, combined with the TPS62693YFDR, makes up a complete power solution. The TPS62693YFDR also features programmable soft-start time for improved response when heavy loads are applied.

Features and Benefits

The main features of the TPS62693YFDR are as follows:

• Output Voltage Stepdown from 5.5V to 0.8V
• Up to 1.5A Output Current
• High Efficiency 90%
• Low-Noise and Low Ripple Output
• Programmable Soft Start Time
• External MOSFET for Additional Protection

Applications

The TPS62693YFDR is ideal for DC-DC switching regulators and can be used in various applications such as:

• Cameras
• Cell phones
• MP3 players
• Laptop / Notebook computers
• Power-sensitive applications
• Handheld electronics

Working Principle

The way DC-DC Switching Regulators work is by converting input voltage from one level to another, usually from higher to lower power levels. It does this through use of a switching transistor that is either turned on or off by an external control signal. This type of voltage regulation is known as pulse-width modulation (PWM) and is widely used for efficient conversion of power from one level to another.

When the switching transistor is on, current flows from input to output. When the transistor is off, there is no current flow and the output voltage is determined by the value of the output capacitor. By controlling the ratio of these intervals, the output voltage can be regulated and maintained at a desired level.

Conclusion

The TPS62693YFDR is an efficient and reliable step down DC-DC switching regulator that can provide up to 1.5A of output current at 0.8V of output voltage. With features such as programmable soft-start, low-noise, low ripple and input voltage protection, it is an ideal choice for power-sensitive applications such as cameras, cell phones, and MP3 players.

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