TCM680CPA

Voltage - Output (Min/Fixed):	-Vin, 2Vin
Base Part Number:	TCM680
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	21kHz
Current - Output:	10mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2V
Number of Outputs:	2
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive and Negative (Dual Rail)
Function:	Ratiometric
Part Status:	Obsolete
Packaging:	Tube

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Overview

The TCM680CPA DC/DC switching regulator is a highly integrated PMIC Voltage Regulator that delivers up to 1.5A of continuous output current. The device features an adjustable output voltage range of 0.8V to 5.25V, allowing for a wide variety of applications. It also features low quiescent current and low output ripple, making it well suited for power-hungry applications.

Features

The TCM680CPA DC/DC switching regulator offers the following features:- Up to 1.5A of continuous current- Adjustable output voltage range of 0.8V to 5.25V- 160kHz switch frequency- Low quiescent current of 18μA- Low output ripple- Soft-start and over-current protection

Application Field

The TCM680CPA DC/DC switching regulator is suitable for a variety of applications, including processor cores, LCD screens, audio components, and automotive systems. It is capable of maintaining stable voltage and regulated output current over a wide range of input voltages, making it one of the most versatile and reliable DC/DC switching regulators on the market.It is also ideal for battery-powered devices, allowing for better system performance and improved battery life. The low quiescent current and low output ripple make it well suited for power-hungry applications, while the adjustable output voltage range allows it to be used in a variety of different applications.

Working Principle

The TCM680CPA DC/DC switching regulator is a current-mode step-down regulator that operates at a fixed frequency of 160kHz. The device consists of an input terminal, a reference voltage, an error amplifier, an oscillator, a gate driver, and an output terminal.The input terminal is connected to the source voltage, which is then fed to the reference voltage, causing a voltage drop across the voltage divider network. This voltage is present at the error amplifier, and the output of the amplifier is connected to the oscillator. The oscillator generates a fixed frequency pulse-width modulation (PWM) signal that is sent to the gate driver, which in turn switches the N-channel FET. When the FET is switched on, the output voltage is regulated at the desired level. When the FET is switched off, the output voltage drops to the minimum level.The TCM680CPA also features integrated over-current, and soft-start protection.

Conclusion

The TCM680CPA DC/DC switching regulator is a highly integrated PMIC voltage regulator that is suitable for a wide range of applications. It can provide up to 1.5A of continuous output current, and has an adjustable output voltage range of 0.8V to 5.25V. It also features low quiescent current and low output ripple, making it well suited for power-hungry applications. The device operates at a fixed frequency of 160kHz, and features integrated over-current and soft-start protection.

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