MIC23250-S4YMT-TR

Voltage - Input (Max):	5.5V
Supplier Device Package:	10-TMLF® (2x2)
Package / Case:	10-UFDFN, 10-TMLF®
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	4MHz
Current - Output:	400mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.2V, 3.3V
Series:	HyperLight Load®
Voltage - Input (Min):	2.7V
Number of Outputs:	2
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Discontinued at Digi-Key
Packaging:	Cut Tape (CT)

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MIC23250-S4YMT-TR is one of TI’s current-mode step-down DC–DC switching buck regulator which is widely used in various application fields. The MIC23250-S4YMT-TR provides an accurate output voltage for fast transient response and small loop compensation requirements. It has a wide voltageloop range of 4.5V to 24V and a lownoise output voltage range from 0.6V to 5V. It is capable of delivering up to 8 Awith excellent current-modeof control performance.Designers of electronic products can leverage the MIC23250-S4YMT-TR to boost voltage regulation capabilities to fulfill advanced applications and power requirements. This DC–DC converter provides many appealing features that make it ideal for a wide range of applications including industrial, automotive, mobile, computing and communication. It also exhibits excellent high frequency performance due to the advanced fast-transient control loop.The MIC23250-S4YMT-TR is operated in current-mode control which features the advantages of reduced output voltage ripple, higher efficiency, low audible noise, and better line regulation. It has a wide input voltage range of 4.5V to 27V, allowing it to provide an ideal solution in applications where non-standard input voltages require regulation. It offers superior current-mode loopperformance with excellent line resistanceand load transient response.The MIC23250-S4YMT-TR also features an integrated lossless MOSFET gate driver for high- frequency operation up to 4MHz, with a peak current of 12 A. This enables designers to design high efficiency solutions with low power dissipation. The wide operating temperature range from -40◦C to +125◦C allows it to be used in hostile environments.The MIC23250-S4YMT-TR also has integrated protection features, including output overload protection, under and overvoltage protection (UVLO) and output short circuit protection. The device also offers an internal soft-start and an adjustable soft-stop to minimize the inrush current. The power ok signal output can indicate whether the output is in regulation or not and it can be used to monitor the feedback voltagein systems where the output voltage is beyond the range of the buck regulator.The MIC23250-S4YMT-TR is a versatile DC–DC regulator that can be used to design sophisticated power supply solutions for various applications. Its superior current-modecontrol provides fast transient response and low audible noise, while the wide voltage loop range and high efficiency operation make it suitable for a variety of power solutions.The working principle of the MIC23250-S4YMT-TR is based on a highly efficient PWM current control loop. This loop works in a continuous conduction mode and continuously monitors the output voltage in order to maintain a constant output voltage, regardless of load variations. This ensures that the output voltage is within the desired range. The device also has an integrated MOSFET gate driver and MOSFET switch which works together to provide high frequency switching and low power dissipation. The integrated protection features, wide temperature range and programmable features make the MIC23250-S4YMT-TR an ideal choice for designers.

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