LMS3635AQRNLRQ1

Voltage - Input (Max):	36V
Supplier Device Package:	22-VQFN-HR (5x4)
Package / Case:	22-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	250kHz ~ 500kHz
Current - Output:	3.5A
Voltage - Output (Max):	15V
Voltage - Output (Min/Fixed):	1V
Series:	Automotive, AEC-Q100
Voltage - Input (Min):	3.9V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LMS3635AQRNLRQ1 is a high-performance synchronous switching regulator with integrated power switches for supplying loads up to 6A. This regulator is designed with a low-side MOSFET driver. It has an internal synchronous rectifier with low on-state resistance and ultra-low quiescent current. It has low external component count, minimal board area and low system cost. It also features a wide operating temperature range from -40°C to 125°C.

Application Field

The LMS3635AQRNLRQ1 is a high-efficiency, direct-current (DC) to DC regulator that is well-suited for applications where area, cost, and efficiency are important. It is capable of delivering up to 6A of continuous current to the load. It is used in a broad range of applications including consumer electronic devices, portable devices, power supplies, automotive electronics, medical devices, and industrial control systems.

Working Principle

The working principle of the LMS3635AQRNLRQ1 DC to DC regulator is based on switch-mode buck tripler-flyback. It is used to convert a higher input voltage to a lower output voltage. It has high-side and low-side power switches connected in series. The switching interval is controlled by the internal state machine, which senses the output voltage and compares it to the reference voltage. The output voltage is regulated by changing the duty ratio of the high-side and low-side switches. The state machine also initiates pulse skip as needed, to improve the regulator\'s dynamic response and efficiency.

Features

The LMS3635AQRNLRQ1 has several features that make it an ideal choice for many power supply applications:- External synchronization capability- Programmable output voltage- Programmable output current limit- Soft start and stop- Over-temperature protection- Power-good indicator- Low output ripple noise

Conclusion

Overall, the LMS3635AQRNLRQ1 is efficient, reliable and cost-effective DC-DC regulator for applications that require high performance and low power consumption. It has an integrated power switch and low-side driver, low on-state resistance, and low quiescent current. The regulator features a wide operating temperature range, programmable output voltage, current limit, and soft start, as well as over-temperature protection and power-good indicator. It is suitable for use in a variety of applications, including consumer electronics, portable devices, power supplies, automotive electronics, medical devices, and industrial control systems.

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