TPS61097A-33DBVR

Voltage - Input (Max):	5.5V
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	--
Current - Output:	200mA (Switch)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Series:	--
Voltage - Input (Min):	0.9V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS61097A-33DBVR Application Field and Working PrincipleThe TPS61097A-33DBVR is an intelligent synchronous buck converter with an integrated driver circuit and MOSFET, ideal for single supply applications in the field of DC-DC switching regulators.Innovative by design, this DC-DC converter effectively reduces energy loss, provides robust 32V input voltage tolerance, and operates across a wide range of output voltages and currents. This PMIC (Power Management Integrated Circuit) is an exemplary choice for powering medium-power, low-voltage loads, such as portable devices, wearables, and battery-powered systems.This article explains the application fields and working principle of the TPS61097A-33DBVR, thereby providing readers with a better understanding of this DC-DC switching regulator.Application Fields of the TPS61097A-33DBVRThe TPS61097A-33DBVR is a highly reliable and cost-effective solution for the design of power systems in a wide range of applications. This state-of-the-art regulator is ideal for powering medium-power load applications in the following areas:

• Portable Electronics: The TPS61097A-33DBVR is widely used in portable electronic devices such as audio players and mobile phones as it can reliably power core subsystems and additional peripherals.
• Wearables: It is perfect for powering medium-performance applications such as fitness trackers, smart watches and hearing aids.
• Industrial Controls: This PMIC is widely used to provide reliable power conversion for motor control, LED lighting and surveillance systems.
• Automotive Electronics: It is used in many automotive applications, as it is well-suited for applications requiring low standby losses and fast transient response.
• Battery-Powered Systems: It is an excellent choice for powering battery-powered systems such as medical and security devices, as it offers a wide input voltage range and very low quiescent current.

Working Principle of the TPS61097A-33DBVRThe TPS61097A-33DBVR is a synchronous buck converter with an integrated driver circuit and MOSFET. This device employs a current-mode control scheme and operates in constant frequency Current Mode (CCM) or pulse frequency modulation (PFM).In CCM mode, the converter produces an output voltage that is smoothly regulated and free from rather noisy transitions. The frequency of the internal oscillator is determined by an external resistor or through an I2C interface.In PFM mode, the regulator’s low internal resistance allows for better efficiency in light load applications. The PFM operating mode is ideal in applications with limited power capacity, since the frequency is decreased with increasing load, which in turn decreases the quiescent current.In addition, the TPS61097A-33DBVR provides over-temperature protection, under-voltage lockout, and output over-current protection. This chip also includes an integrated circuit (IC) offering slew rate adjustment as well as an IC to modulate an external MOSFET.Thus, the TPS61097A-33DBVR is a PMIC specifically designed for efficient and reliable power conversion, thereby giving designers the flexibility to implement high-performance power systems.

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