LTC3129IMSE-1#TRPBF

Voltage - Output (Min/Fixed):	2.5V
Base Part Number:	LTC3129
Supplier Device Package:	16-MSOP-EP
Package / Case:	16-TFSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	1.2MHz
Current - Output:	200mA
Voltage - Output (Max):	15V
Series:	--
Voltage - Input (Max):	15V
Voltage - Input (Min):	1.92V
Number of Outputs:	1
Output Type:	Programmable
Topology:	Buck-Boost
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Application Field and Working Principle of LTC3129IMSE-1#TRPBF

Introduction

The LTC3129IMSE-1#TRPBF is a DC-DC switching regulator designed for portable and handheld applications. It supports both all-N-channel, asynchronous buck and a synchronous, all-MOSFET buck/boost topology, providing improved efficiency at light load conditions in a small, thermally enhanced 3mm x 3mm 10-pin DFN package.

Features

The LTC3129IMSE-1#TRPBF includes many features that are unique in its class. It enables very low dropout efficiency at start-up and supports wide input voltage range from 2V to 28V. And it operates in low noise, high efficiency, low dropout and current limited mode. Also, it is capable to be powered down with a logic low voltage supply and provides a power good output signal.

Application Field

The LTC3129IMSE-1#TRPBF is especially suitable for low-power applications and small battery powered mobile devices. Its wide input voltage range and low power circuitry allow the use of this device as a low-cost, flexible DC/DC converter solution for applications with limited board space or power requirements. It is also suitable for powering a variety of microcontrollers and low-power memory devices in industrial and medical equipment, communication systems, automotive and consumer electronics.

Working Principle

The LTC3129IMSE-1#TRPBF is an integrated switching regulator that combines a power MOSFET switch, current sensing, and a voltage reference into a single package. It uses switch-mode architecture to achieve a wide input voltage range and low output voltage ripple. At light load conditions, the LTC3129IMSE-1#TRPBF operates in pulse frequency modulation (PFM) mode to conserve power and maximize efficiency. When the output load increases, it switches to pulse width modulation (PWM) mode to maintain regulation and stability. The LTC3129IMSE-1#TRPBF also includes other features such as short circuit protection, over-temperature protection and soft-start.

Conclusion

The LTC3129IMSE-1#TRPBF is a highly efficient and integrated DC/DC converter offering low dropout efficiency and wide input voltage range for low-power applications. It combines several integrated power components, providing a cost-effective solution for powering mobile devices, wireless communication systems and other small embedded systems. This DC/DC regulator is versatile and reliable and is capable of meeting the needs of a variety of applications. Its wide input voltage range and low power circuitry enable its use as a low-cost, flexible DC/DC converter solution.

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