MAX17536ATP+T

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Max17536ATP+T Application Field and Working Principle

The MAX17536ATP+T is a versatile, high-efficiency, step-up dc-dc converter that is ideal for applications that need to step up the input battery voltage to high-level voltages with excellent efficiency. It supports an input voltage range of 3 V to 20 V, its wide input range providing superior flexibility. Additionally, the MAX17536ATP+T can deliver up to 1A of output current at ±3% accuracy and up to 200mV load regulation.

Features

• Wide input voltage range-3V to 20V
• Output voltage up to 28V
• Up to 1A output current
• ±3% accuracy
• Up to 200mV load regulation
• High efficiency
• Programmable switching frequency up to 1MHz
• Reverse current capability
• Over-current and over-temperature protection

Application Field

The MAX17536ATP+T can be used in a number of embedded systems, such as datacom, industrial, medical, and consumer applications. It is ideal for applications that require incremental step up of input voltage to a higher output voltage. The MAX17536ATP+T’s combination of features and high efficiency/low-cost combination makes it an ideal choice for fixed output voltage applications.

Working Principle

The MAX17536ATP+T works by integrating an inductor into the power supply chain. This inductor allows for the current to increase and decrease in a sinusoidal fashion, which reduces noise and ripple on the power rails. The current is drawn from one side of the inductor, and by its design allows the current to both increase and decrease in a sinusoidal manner as it passes through the inductor.

The voltage across the inductor is determined by the equations given in the datasheet, which describe the relationship between input voltage and output voltage. While in steady state, the supply output is regulated to its programmed voltage. The maximum current limit is set by the thermal foldback circuit while charging the output capacitors.

In order to effectively step-up the input voltage to the output voltage, the MAX17536ATP+T has an internal voltage boost circuit. This voltage boost circuit works by connecting an external N-MOSFET in series with an internal M-MOSFET at the input voltage and controlling the N-MOSFET to turn on and off as needed. This allows for the input voltage to be stepped up to the desired output voltage.

When the inductor current begins to fall, the T switch turns on. This allows for the energy stored in the inductor to be transferred to the output capacitor. During this time, the current is returned to the battery via the body diode of the N-MOSFET, which is connected in a non-conductive state. This allows for the reset of the system and the recharging of the output capacitors.

The MAX17536ATP+T can be easily configured for different input and output voltages through the use of pin settings. This makes it easier to use in a variety of applications.

Conclusion

The MAX17536ATP+T is a versatile, high-efficiency, step-up dc-dc converter that is ideal for applications that need to step up the input battery voltage to high-level voltages with excellent efficiency. It supports an input voltage range of 3 V to 20 V and its wide input range provides superior flexibility. Additionally, the MAX17536ATP+T can deliver up to 1A of output current at ±3% accuracy and up to 200mV load regulation. The MAX17536ATP+T is ideal for applications that require incremental step up of input voltage to a higher output voltage and its combination of features and high efficiency/low cost make it an ideal choice for fixed output voltage applications.

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