Voltage - Output (Min/Fixed):	3.3V
Base Part Number:	XC9235
Supplier Device Package:	SOT-25
Package / Case:	SC-74A, SOT-753
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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PMIC - Voltage Regulators - DC DC Switching Regulators

The XC9235A33DMR-G circuit is a high-performance, monolithic switching regulator that conforms to the Conduction Cooled DC/DC Regulation Standard (CC21). This standard requires circuit boards to operate at up to 16 VDC and operate with a maximum input voltage of 100V at frequencies of no more than 200 kHz.The circuit is designed with a switching frequency of 200 kHz, and its outputs are switchable between different values according to the input voltage and load. The output voltage of the device is precision-controlled with an accuracy of ±1%. The output voltage is adjustable over a range of 0.9 VDC to 15.6 VDC. The maximum output current is 5 A, with peak current up to 6 A.The XC9235A33DMR-G is a synchronous buck regulator and the output voltage is switched by a drive transistor and synchronous rectifier (shutdown mode is available). The drive transistor is an N-channel MOSFET, which supplies voltage to the low-side synchronous rectifier, which in turn supplies power to the output capacitor. The synchronous rectifier is also an N-channel MOSFET. The drain-source voltage of the synchronous rectifier is equal to the output voltage.The circuit is designed to provide excellent line and load regulation. It features a frequency foldback feature that reduces pulse-by-pulse current limiting as the device approaches its thermal limit. This feature helps to protect the device from thermal runaway and to ensure system stability.The XC9235A33DMR-G provides three different operating modes: PFM, Forced PWM and Auto Mode. PFM mode is the default operating mode and it is suitable for light to medium load applications because the output voltage ripple is small. PWM mode is suitable for high load applications and the output voltage ripple is high. Auto mode is a variable switching frequency mode that dynamically adjusts the switching frequency according to the input voltage and load, resulting in a low output voltage ripple.To ensure stability, the XC9235A33DMR-G features an internal compensation network that is designed to minimize output voltage ripple and ensure device stability under all operating conditions. The XC9235A33DMR-G also features an internal temperature sensor that enables the device to disable its output in the case of a thermal overload.The XC9235A33DMR-G device is a high-performance and highly reliable DC/DC regulator that can be used in a wide range of applications, such as automotive, industrial, and medical power supplies, as well as in telecommunication systems. The device offers excellent performance, reliability, and accuracy, which makes it an ideal choice for powering a wide variety of applications.

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