LMR10515YSD/NOPB

Series:	SIMPLE SWITCHER®
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	3V
Voltage - Input (Max):	5.5V
Voltage - Output (Min/Fixed):	0.6V
Voltage - Output (Max):	4.5V
Current - Output:	1.5A
Frequency - Switching:	3MHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	6-WDFN Exposed Pad
Supplier Device Package:	6-WSON (3x3)
Base Part Number:	LMR10515

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Introduction to LMR10515YSD/NOPB

The LMR10515YSD/NOPB is a DC DC switching regulator that provides high-efficiency, cost-effective, and safe power management solutions for portable medical applications. It is from Texas Instruments and has a high level of integration and flexibility. It offers synchronous buck-boost converters with a wide input voltage range, a wide set of supported output voltages and current ranges, and a low power mode.

Application Field

The LMR10515YSD/NOPB is commonly used in portable medical equipment. It is designed for long battery life and a low cost point of integration. It is suitable for applications such as patient monitoring devices, patient infusion pumps, and stimulation devices. It is also ideal for those devices that require a low-power state due to its low power mode feature. The LMR10515YSD/NOPB was specifically created with battery-powered medical devices in mind. This DC DC switching regulator can provide different output levels, depending on the application and its requirements. For instance, if the device calls for multiple output, the LMR10515YSD/NOPB can be configured to provide 12V and 3.3V outputs. It also offers fast transient response and a low total harmonic distortion, which is essential for battery-powered medical devices.

Working Principle

The LMR10515YSD/NOPB DC DC switching regulator is a synchronous buck-boost converter with a wide input voltage range, fast transient response, and low total harmonic distortion. It has a wide set of supported output voltages and current ranges, from 1.5V to 5V. The LMR10515YSD/NOPB follows the synchronous buck-boost converter control method. Voltage is converted by a power switch and an inductor. A high-side MOSFET is used to connect the inductor to the input voltage and a low-side switch is used to connect the inductor to the output voltage. The inductor stores the energy created by the voltage conversion and is used to ‘smooth’ out the current flow. The LMR10515YSD/NOPB also has a special low power mode. When the device enters this mode, the timer is disabled, the output voltage is taken off, and the high-side MOSFET is switched off allowing for very low quiescent current. This ensures the device has a low power state for portable medical applications when not in use.

Conclusion

The LMR10515YSD/NOPB is part of Texas Instruments’ DC DC switching regulator series. It provides high-efficiency, cost-effective, and safe power management solutions for portable medical applications. The synchronous buck-boost converter within this DC DC switching regulator has a wide input voltage range, fast transient response, and low total harmonic distortion. It also offers a low power mode that allows the device to enter a very low quiescent current state when not in use. These features make it the perfect choice for devices that require a low-power state while ensuring maximum efficiency.

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