MAX660M/NOPB

Voltage - Output (Min/Fixed):	-Vin, 2Vin
Base Part Number:	MAX660
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	10kHz, 80kHz
Current - Output:	100mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Active
Packaging:	Tube

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Introduction

Maxim Integrated Corporation\'s MAX660M/NOPB is a DC-DC switching regulator. It is a monolithic IC with its own control, power and circuit protection circuitry included. It has two output channels for two different voltage outputs, and a frequency range of 250kHz to 2MHz. It also offers a wide input voltage range of 2.7V to 24V. This device is ideal for applications requiring high power efficiency and a smart protection mechanism.

Application Field

The MAX660M/NOPB is widely used in products such as laptop computers, cell phones, tablet computers, and industrial switch-mode power converters. Its primary application is as a DC-DC converter providing an adjustable supply of a low voltage from a higher input voltage of up to 24V. This IC can also be used as a voltage source to power various ICs and transistors, as a booster for charging batteries, as a step-down converter for reducing a higher voltage to a lower voltage, and more.

Features

The MAX660M/NOPB has several features that make it an ideal candidate for a wide range of DC-DC switching regulator applications. First, it has an extremely wide input voltage range of 2.7V to 24V, allowing for a variety of inputs. This means that it can take a generic supply of up to 24V and convert it to an adjustable voltage supply depending on the application.Second, the device offers two output channels with adjustable voltage ranges. This is beneficial in applications that require different voltages to be produced.Third, the device will automatically detect and address input voltage glitches caused by dynamic loads. This is especially useful in applications that have ever-changing loads.Fourth, the IC includes overvoltage protection, which will help protect the device and any connected components from damage due to excessive voltage in the input source.Finally, the device is highly efficient, with typical power savings of 0.85V to 1.5V compared to other devices.

Working Principle

The MAX660M/NOPB works by modulating the on/off switching of power transistors in order to regulate the output voltage of a power source. When the power transistors are switched “on”, the input voltage is transferred to the outputs of the regulator. When the power transistors are switched “off”, the voltage at the output of the regulator is dropped to a lower-than-input value. The output voltage of the regulator is regulated by adjusting the switching frequency of the power transistors. The MAX660M/NOPB’s wide range of adjustable frequencies (250kHz to 2MHz) makes it ideal for applications requiring varying switching frequencies to produce the desired output voltage.

Conclusion

Maxim Integrated Corporation’s MAX660M/NOPB is a perfect candidate for applications requiring a low-voltage adjustable source of power. Its features, such as its wide input voltage range, two output channels, overvoltage protection, and efficient power savings make it an ideal candidate for DC-DC switching regulator applications. The MAX660M/NOPB works by regulating the output voltage through modulating the power transistors’ switching frequency.

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