TPS61256AYFFT Integrated Circuits (ICs)

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TPS61256AYFFT is a complete device, monolithic step-up DC/DC converter with an integrated MOSFET. This device consumes very low quiescent current and provides highest efficiency. It helps to limit the maximum power usage and reduce the heat dissipation. This allows the device to be regulated with a variety of supply rail voltages while also drive very high power.

Application field :

• Industrial handheld and medical device.
• Bluetooth Low Energy (BLE) and ZigBee.
• Battery Powered Equipment.
• Smoke Detectors.
• Standard and High Temperature Industrial Applications.
• Smart Meters.
• Telecom/Networking Equipment.
• IoT Endpoints.

Working Principle :

The TPS61256AYFFT DC-DC converter includes an integrated MOSFET that drives a high-side low-side switch. The integrated MOSFET can switch to a high potential or low potential to engage the switch, depending on the oscillator frequency. An internal intelligent regulation loop distinguishes it from earlier DC-DC converters. It adjusts the regulation voltage to maintain a consistent output voltage by compensating for input voltage variations.

The TPS61256AYFFT employs a pulse width modulation (PWM) switching scheme with fixed frequency, which results in a high-efficiency transfer of the input voltage to the output voltage. The frequency of the PWM switching is determined by an internal oscillator. In addition, its sophisticated feedback loop quickly adjusts the duty cycle of the PWM pulse until the feedback voltage is equal to the regulation voltage.

The TPS61256AYFFT also supports a power switch protection circuit. It protects the power switch from over current, over current and excessive temperature. When the input or output voltage is too low, the switch is automatically shut off. This is done to maintain the efficiency, regulate the output voltage and prevent damage to the power switch.

Tthe TPS61256AYFFT also includes an integrated over temperature protection circuit. This circuit monitors the temperature level and shuts off the power switch if the temperature level is too high. This circuit also helps to extend the life of the device by protecting it from thermal damage.

The TPS61256AYFFT offers a wide input voltage range, making it suitable for a variety of applications. The device offers low quiescent current and high efficiency, which makes it ideal for battery-powered applications. The device also provides a variety of protection features, including over current, over current and over temperature protection.

In summary, the TPS61256AYFFT is a complete device, DC/DC converter with an integrated MOSFET, suitable for industrial handheld and medical, IoT endpoints and other applications. The device features a low quiescent current and high efficiency, wide input voltage range, power switch protection, over temperature protection, and sophisticated feedback loop.

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