MAX764CSA

Voltage - Output (Min/Fixed):	-1V (-5V)
Base Part Number:	MAX764
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	300kHz
Current - Output:	260mA
Voltage - Output (Max):	-16V
Series:	--
Voltage - Input (Max):	16V
Voltage - Input (Min):	3V
Number of Outputs:	1
Output Type:	Adjustable (Fixed)
Topology:	Buck-Boost
Output Configuration:	Negative
Function:	Step-Up/Step-Down
Part Status:	Active
Packaging:	Tube

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MAX764CSA Application Field and Working Principle

MAX764CSA is a switching regulator from Dallas Semiconductor devices that is specifically designed for medium-power DC-DC applications. This device is classified as a PMIC (Power Management IC) and a DC-DC Switching Regulator, that utilizes step-down topology and Pulse Width Modulation (PWM) switching frequency to regulate output voltage.Specifically, this device has a very wide range of input voltage (2.75V - 13.2V) and output voltage range (0.5V - 10V) making it suitable for a variety of components and applications. This device is mainly used to step down voltages from a higher value at the input to a required lower value at the output, without the need of a voltage regulator. It is also used for protective reset monitoring and motion control applications.The MAX764CSA DC-DC regulator has a very efficient operating range that is designed for a maximum efficiency rating of 97%. This device is equipped with adjustable UVLO, OVLO, overload protection, and also support for external compensation components.The device has a total of five pins and operates from a single 18V supply voltage. It is Pb-free and is provided in a 7-pin TSOPJW package which is 1.2x2.1x0.55mm in size.

Working Principle

The MAX764CSA works in a very simple manner. The switching regulator takes a load voltage at its input, which is then converted to an output voltage that is adjustable by means of a resistor divider network. This is done by its switch device, typically a MOSFET, that is driven by a Pulse Width Modulator (PWM). In this way, the switching regulator continuously obtains feedback from the output voltage and accordingly modulates the width of the PWM pulse to change the duty cycle and regulate the output voltage. An important feature of this switching regulator is the Pulse Frequency Control (PFC), which helps against ripple noise from the power supply. In this way, the PFC enables the regulator to operate silently by reducing noise from the supply voltage, protecting the sensitive components from being damaged.

Features and Benefits of MAX764CSA

The MAX764CSA switching regulator has a very wide input voltage range, making it suitable for various components and applications. This device also provides adjustable UVLO, OVLO, overload protection, and external compensation. Moreover, this regulator comes with a variety of features including fast transient response, low ripple and noise, high efficiency, and high switching frequencies. Furthermore, this device offers superior thermal performance due to its advanced PTC (Positive Temperature Coefficient) technology that helps the device to evenly distribute heat. This thermal performance ensures that the device operates under optimal conditions at all times. Since the MAX764CSA has an extremely small size, it can be easily integrated into small form factor designs. In addition, it is RoHS compliant, Lead-free, and also meets the requirements of modern day Environmental Protection Agency (EPA) regulations.In conclusion, the MAX764CSA from Dallas Semiconductor is an ideal DC-DC switching regulator for various medium-power applications and is extremely suitable for motion control, protective reset monitoring, step-down voltage conversion, and various other applications. It has a wide range of input voltage and output voltage and is designed for optimal efficiency. This device is also very small in size, RoHS compliant, and Lead-free. Overall, the MAX764CSA is an excellent DC-DC switching regulator from Dallas Semiconductor that provides superior performance in medium-power applications.

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