TLE4699GMXUMA1

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The TLE4699GMXUMA1 is a low-power, linear voltage regulator from STMicroelectronics. It is designed to provide a regulated output voltage from a source of up to 36 V and is suitable for use in automotive, industrial and other demanding applications. It features a quiescent current consumption that is kept low for improved efficiency and less power dissipation in application designs. This regulator provides accurate output voltage regulation, low noise, fast transient response and low output ripple which are important for automotive and industrial system requirements.

The TLE4699GMXUMA1 device is a single-channel, monolithic, low-dropout voltage regulator (LDO) that integrates a high-current MOSFET and employs a current-mode topology with tight on/off control. This integrated solution eliminates the need for the external MOSFET and helps to lower system cost and power dissipation. The device also has current-fold-back protection which protects the regulator in the event of an over-current condition. The maximum rated output current is 650 mA.

The TLE4699GMXUMA1 includes an enable function which allows turn-off of the device. It can be controlled using the Enable pin which is driven low to turn the regulator off and hence reduce the power consumption. This feature can be used to put the regulator in a low-power sleep mode when necessary. The enable pin can be operated by an external voltage, or can be directly driven by a logic signal with a fixed threshold.

The output voltage of the TLE4699GMXUMA1 is adjusted by a trim potentiometer which helps to achieve the desired output voltage within a range of +/- 1.5%. The voltage adjustment resistor is usually placed off-board to provide improved accuracy. The device has a temperature range of -40 to 150°C.

The TLE4699GMXUMA1 is based on a combination of linear and switching topologies which provides increased efficiency and a low quiescent current of 20 µA at room temperature, which is lower than regulators based on linear regulation alone. The switching happening within the device is relatively fast and hence the output voltage is always held as it is requested. This combination of switching and linear regulation helps to keep the device’s power dissipation low to improve efficiency.

The TLE4699GMXUMA1 is designed for applications such as automotive electronics, industrial devices, battery-powered devices, and power supplies that require fast response time and low-noise operation with a high efficiency rating. This device is suitable for both 5 V and 12 V applications and has a low noise output voltage, current foldback protection, and adjustable output voltage.

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