XC9235A18DER-G

Voltage - Output (Min/Fixed):	1.8V
Base Part Number:	XC9235
Supplier Device Package:	6-USPC (1.8x2)
Package / Case:	6-UFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	3MHz
Current - Output:	600mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	6V
Voltage - Input (Min):	2V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The XC9235A18DER-G is a DC-DC swithing regulator designed to provide an efficient solution for space-challenged power applications. This voltage regulator is part of a series of DC-DC converters that can work up to 18V. It integrates a switching FET and adjustable current-mode PWM controller in a low-profile surface mount package. With its integrated topology, the XC9235A18DER-G enables high efficiency, compact size, and low external component count, in addition to many other features which makes it ideal for a wide range of applications.

Applications

The XC9235A18DER-G can be used in a variety of applications, including portable electronics, telecom and wireless, automotive, industrial and test equipment. The regulator is particularly suited for use in applications that require low voltage, such as notebooks, netbooks and tablet computers.The XC9235A18DER-G offers a variety of features that make it suitable for many applications. This includes a programmable auto-restart with adjustable frequency which helps reduce start-up losses, over-current protection which helps prevent damage from current surges and thermal shutdown protection that helps protect the regulator during sudden temperature changes. Furthermore, the XC9235A18DER-G is designed to provide excellent EMI performance, making it ideal for applications that require low EMI emissions.

Working Principle

The XC9235A18DER-G is a DC-DC switching regulator that works by actively regulating the output voltage. The controller uses a pulse-width modulation (PWM) technique to monitor and adjust the amount of current delivered to the load. The regulator utilizes an adjustable current-mode PWM controller to clock the high and low-side switch signals for controlling the output power and voltage.The high-side switch is responsible for turning the power on and off, and the low-side switch is responsible for providing the output power from the source voltage. The controller utilizes a synchronous rectifier to improve efficiency and reduce the output ripple. The switching frequency is adjustable, allowing the design engineer to optimize the system performance for various load conditions.

Conclusion

The XC9235A18DER-G is a DC-DC switching regulator that is designed to provide high efficiency, compact size and low external component count. It is suitable for a wide range of applications including portable electronics, telecom and wireless, automotive, industrial and test equipment. The regulator is particularly suited for low voltage applications due to its adjustable auto-restart with adjustable frequency, over-current protection and thermal shutdown protection. With its integrated topology, the XC9235A18DER-G offers excellent EMI performance and is an ideal choice for many applications.

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