MAX1765EVKIT

Series:	--
Part Status:	Active
Main Purpose:	DC/DC, Step Up with LDO
Outputs and Type:	2, Non-Isolated
Voltage - Output:	2.85V, 3.3V
Current - Output:	800mA, 500mA
Voltage - Input:	1.1 V ~ 3.2 V
Regulator Topology:	Boost
Frequency - Switching:	1MHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	MAX1765

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MAX1765EVKIT is an evaluation board designed to allow users to evaluate the features and performance of the MAX1765 step-up switching regulator IC. Its main purpose is to provide an easy and quick way of assessing design performance and determining the most appropriate configuration for the application.MAX1765EVKIT is designed to demonstrate the capability of the MAX1765 step-up switching regulator IC. It is easy to use, providing a fast and straightforward way to evaluate the performance of the device and the design.The MAX1765EVKIT evaluation board describes an off-line, step-up switching regulator that uses a regulated switching frequency to maintain high efficiency and low EMI. It generates an output voltage of 2.8V to 10V, with an input voltage range from 9.4V to 18V. It can provide up to 500mA of output current and has a programmable operating frequency from 100kHz-1MHz. It supports both singlewinding and dual-winding of the transformer.The MAX1765 provides features such as power good signaling, overvoltage protection, overcurrent protection, thermal shutdown, and undervoltage lockout. The MAX1765EVKIT application fields are mainly consumer electronics applications, which are designed to deliver a low-cost, high-efficiency power solution. It can be used in a variety of products, such as medical equipment, consumer electronics, testing and measuring equipment, household appliances, and more. The MAX1765EVKIT utilizes a two-phase design for improved transient performance, high efficiency, and low ripple. It features a high-power-density transformer, efficient MOSFETs, and a compact form factor. The board uses a PIM+ PCB configuration to realize improved protection against overcurrent, overvoltage, and short-circuit conditions. It also provides flexibility to the user by allowing for customized design parameters, such as frequency, switching duty-cycle, output voltage, input voltage range, and output current.The MAX1765EVKIT evaluation board includes the following components: a MAX1765 step-up, regulating switching regulator IC; a driver IC; capacitors for energy storage; a ferrite bobbin for low EMI radiation; an inductor for transformer winding; and a diode for voltage clamping. It also includes an OVP detector, a thermal shutdown circuit, and a power-good signaling circuit.To demonstrate the performance and features of the MAX1765EVKIT, a few basic experiments can be performed using the board. The board is programmed with a default configuration and can be powered with an input voltage of 9V to 18V. The frequency, output current, output voltage, and other design parameters can be adjusted in the default configuration. When the board is powered up, the output voltage should rise to its specified level within 2-4ms. When the board is shut down, the output voltage should return to ground within 10-30ms.To evaluate the transient response of the device, the input voltage can be varied from the minimum to the maximum allowed values while observing the output voltage. The results should show that the device has good input and output voltage regulation. To measure the efficiency of the device, a digital multimeter can be connected across the input and output terminals to measure the current and voltage that is passed through the device.The MAX1765EVKIT is a valuable tool for testing and evaluating the performance of a MAX1765 switching regulator IC. It provides a practical and easy way to assess design performance and determine the most suitable configuration for the required application. With its high power efficiency, low EMI, and a small form factor, this evaluation board is well suited for operations in consumer electronics applications.

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