TC1044SEOA

Voltage - Output (Min/Fixed):	-Vin
Base Part Number:	TC1044
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	10kHz, 45kHz
Current - Output:	20mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	12V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Negative
Function:	Ratiometric
Part Status:	Active
Packaging:	Tube

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Introduction

TC1044SEOA is a family of integrated circuits of DC-DC switching regulator and high efficiency buck converters. They are offered in two versions: a general-purpose version and a high-power version, and they are specifically designed for performance and speed of the switching regulator. The main features of TC1044SEOA include low noise operation, small footprint, wide input voltage range, and extended operating temperature range. The high-power version also has a current-mode control scheme and a wide output range. The general-purpose version of TC1044SEOA can be operated over a wide temperature range from -40 to +85C. In addition, it is also protected from over-voltage, reverse current, and thermal overload.

DC DC Switching Regulators

A switching regulator or DC-DC converter is an electronic device used to convert a DC input voltage to a different DC output voltage. It typically operates using pulse width modulation, where the pulses of energy are rapidly switched on and off at a constant frequency. The output voltage is determined by the on-time of the pulses and the input voltage.Switch regulators are more efficient than linear regulators, as they only dissipate power when the switch is on and no power when the switch is off, whereas linear regulators dissipate power regardless of the load. This makes them more suitable for power-critical applications where high efficiency is essential.

TC1044SEOA Application Field and Working Principle

TC1044SEOA is a highly efficient buck converter for applications requiring up to 5A output current. It is designed for a wide input voltage range from 3.0 to 60V and is capable of providing an output voltage of up to 5V. The device is characterized by its low-noise operation, high efficiency, and small footprint.The TC1044SEOA operates in a fixed frequency pulse width modulation (PWM) mode, which provides precise output voltage control. The A version of the device offers a precise and adjustable operating frequency of 100KHz to 1.2MHz, while the B version offers a fixed frequency of 500KHz.The TC1044SEOA can operate over a wide temperature range from -40°C to +85°C and is protected against overvoltage, reverse current, and thermal overload. It also features an output voltage accuracy of up to 1%, thermal shutdown protection, and cycle-by-cycle current limiting for short circuit protection.

Conclusion

TC1044SEOA is a family of integrated DC-DC switching regulators with high efficiency buck conversion. The TC1044SEOA is specifically designed for performance, efficiency and compact size, making it perfect for high power applications. It is capable of providing up to 5A output current, has a wide input voltage range, and its output is precisely controlled with adjustable or fixed frequency pulse width modulation. Additionally, it offers a wide operating temperature range, overvoltage protection, reverse current protection, and thermal overload protection.

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