MAX635ACPA

Voltage - Output (Min/Fixed):	-1.31V (-5V)
Base Part Number:	MAX635
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	50kHz
Current - Output:	500mA
Voltage - Output (Max):	-5V
Series:	--
Voltage - Input (Max):	16.5V
Voltage - Input (Min):	2.3V
Number of Outputs:	1
Output Type:	Adjustable (Fixed)
Topology:	Buck
Output Configuration:	Negative
Function:	Step-Up, Step-Down
Part Status:	Active
Packaging:	Tube

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MAX635ACPA is a monolithic DC-DC switching regulator that is suitable for various applications. It has an exceptional 180-mA drive capability, allowing it to drive up to two N-channel power MOSFETs at 150°C junction temperature. The MAX635ACPA is designed to deliver line and load regulation, low output noise, and high efficiency in a small package.The MAX635ACPA has a well-defined output voltage range of 0.8V to 6V. It can operate over an input supply range of 4.5V to 40V, a wide range for applications with limited input voltage flexibility. Its operating frequency is also adjustable via an external resistor, allowing for flexible board layout and excellent power-supply transient response. Its soft-skip mode allows for low noise operation, and its switching-frequency synchronization is useful when supplies must share a common switching frequency.The MAX635ACPA has a wide range of protection features, such as overvoltage protection, current limit protection, and over-temperature protection, which makes it suitable for a wide range of applications. It also features fixed frequency pulse-width modulation control and low-ripple switching. Additionally, it has an over current protection of 35mA and built-in-short circuit protection.The MAX635ACPA is well-suited for a wide variety of DC-DC conversion applications. It is an ideal choice for applications that require a compact, high-performance switching regulator with wide input and output voltage ranges. It can be used to convert the input voltage to adjustable output voltage levels and is suitable for low-power, high-efficiency DC-DC conversion applications, such as battery chargers, point of load, computers, and consumer/industrial systems.The MAX635ACPA has several input, output, and protection pin configurations, allowing for a wide variety of applications. It is available in a small P-VariPower-SIP7 package, for a reduced solution size.The MAX635ACPA\'s working principle is based on the switching regulator circuits that have a PWM controller in their signal path. A signal is trigged inside the PWM controller and after it is processed by the controller it is sent to the output switch, which is controlled by a drive signal. This allows the switching regulator to control the output switch enabling it to regulate an output voltage to the desired level. The internal PWM controller also controls the output switch\'s duty cycle and switching frequency. This not only regulates the voltage output with a high degree of accuracy but also minimizes unwanted high frequency components. The output voltage is typically regulated by an error amplifier and a FET driver with a maximum drive current of 180mA.The MAX635ACPA also features two on-board synchronizable oscillators with fixed frequency operation. When synchronized with an external clock, it provides a flexible design that allows the switching frequency to be easily adjusted across the 200kHz to 1.3MHz range.In summary, the MAX635ACPA is a one-stop solution for DC-DC conversion applications requiring high power and high efficiency. With an adjustable output voltage range, adjustable pulse-width modulation frequency, and a wide range of protection features, it provides an efficient, reliable, and cost-effective way to optimize a system\'s power supply. Moreover, the wide input and output voltage ranges, adjustable switching frequency and synchronizable oscillator make it a suitable choice for various applications.

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