TLE42702SAKSA1

Current - Output:	650mA
Base Part Number:	TLE4270
Supplier Device Package:	PG-TO220-5
Package / Case:	TO-220-5 Formed Leads
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 150°C
Protection Features:	Over Current, Over Temperature, Over Voltage, Reverse Polarity, Short Circuit, Transient Voltage
Control Features:	Reset
PSRR:	54dB (100Hz)
Current - Supply (Max):	90mA
Current - Quiescent (Iq):	1.5mA
Series:	Automotive, AEC-Q100
Voltage Dropout (Max):	0.7V @ 550mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	42V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction to TLE42702SAKSA1

TLE42702SAKSA1, designed by Infineon Technologies AG, is a low-dropout, low-quiescent current linear regulator. It provides a wide range of output voltages with a maximum input of 16V. It is optimized for very low quiescent current in various application scenarios. The TLE42702SAKSA1 is a power management integrated circuit (PMIC) and belongs to the voltage regulator and linear category. Its purpose is to derive an output voltage from an input voltage, for example when a system needs a specific voltage level for device operation or when a higher output voltage is required for certain applications.

Application Field

TLE42702SAKSA1’s applications range from battery-operated devices, handheld and cellular devices, automotive, industrial power supplies, consumer audio and video equipment, computers, servers and mainframes. In battery-operated devices, the linear regulator can provide a key back-up function, such as keeping the low-end voltage level. In automotive, the TLE42702SAKSA1 can be used to manage the power supply for a variety of sensors and microcontrollers (MCU) in engine control units (ECU). In consumer audio and video equipment, the device can be used to reduce the high-end voltage down to the required voltage level.

Working Principle

The TLE42702SAKSA1 works by a technique called “series regulation”. In series regulation, the linear regulator is configured with a voltage reference, a resistive divider and a transistor. The regulation circuit draws a current from the input voltage and passes it through the resistive divider, which creates a voltage drop. The voltage reference then compares the voltage drop with its reference voltage to make sure that the output voltage is remain to within its acceptable range. When the output voltage is too low, the linear regulator draws more current from the input voltage and passes it through the resistive divider. This causes a larger voltage drop, which causes the voltage reference to adjust the voltage output to the correct level. Conversely, if the output voltage is too high, the linear regulator draws less current and the voltage output is adjusted downwards.

Conclusion

The TLE42702SAKSA1 is an ideal solution for a wide range of power management applications, from battery-operated devices to automotive and consumer electronics. It is optimized for low quiescent current and offers excellent protection features, such as short circuit protection, over voltage protection, thermal shutdown and reverse polarity protection. Its principle of operation involves drawing a current from the input voltage and passing it through a resistive divider to create a voltage drop, which is then adjusted by the voltage reference to generate the correct output voltage.

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