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OPTIREG™ linear TLS820F0ELVxx Low dropout linear voltage regulator Features • Wide input voltage range from 3.0 V to 40 V • Fixed output voltage 5 V or 3.3 V • Output voltage precision ≤ ±2 % • Output current capability up to 200 mA • Ultra low current consumption typ. 40 µA • Very low dropout voltage typ. 70 mV @100 mA • Stable with ceramic output capacitor of 1 µF • Delayed reset at power-on with 2 Programmable delay times 8.5 ms / 16.5 ms • Adjustable reset threshold down to 2.50 V • Watchdog with flexible timings and current dependent deactivation: 16 ms / 32 ms / 48 ms / 96 ms, Activated at IQ >5.5mA • Enable, undervoltage reset, overtemperature shutdown • Output current limitation • Wide temperature range • Green product (RoHS compliant) Potential applications • Automotive general ECUs • Dashboard and cluster supplies • Powertrain and EPS applications • Microcontroller supply for safety applications Product validation Qualified for automotive applications. Product validation according to AEC-Q100/101. Description The OPTIREG™ linear TLS820F0ELVxx is a high performance very low dropout linear voltage regulator for 5 V (TLS820F0ELV50) or 3.3 V (TLS820F0ELV33) supply in a PG-SSOP-14 package. With an input voltage range of 3 V to 40 V and very low quiescent of only 40 µA, these regulators are perfectly suitable for automotive or any other supply systems connected to the battery permanently. The TLS820F0 provides an output voltage accuracy of 2 % and a maximum output current up to 200 mA. Datasheet 1  Rev. 1.2 www.infineon.com/OPTIREG-linear 2021-04-08OPTIREG™ linear TLS820F0ELVxx Low dropout linear voltage regulator The new loop concept combines fast regulation and very good stability while requiring only one small ceramic capacitor of 1 µF at the output. At currents below 100 mA the device will have a very low typical dropout voltage of only 70 mV (for 5 V device) and 80 mV (for 3.3 V device). The operating range starts already at input voltages of only 3 V (extended operating range). This makes the TLS820F0 also suitable to supply automotive systems that need to operate during cranking condition. The device can be switched on and off by the enable feature as described in Chapter 4.5. The output voltage is supervised by the reset feature, including undervoltage reset, delayed reset at power-on and an adjustable lower reset threshold. More details can be found in Chapter 4.7. In addition, a watchdog circuit with flexible timings is integrated to monitor the microcontroller‘s operation. Internal protection features like output current limitation and overtemperature shutdown are implemented to protect the device against immediate damage due to failures like output short circuit to GND, over-current and over-temperatures. External components An input capacitor CI is recommended to compensate line influences. The output capacitor CQ is necessary for the stability of the regulating circuit. TLS820F0 is designed to be also stable with low ESR ceramic capacitors. Type TLS820F0ELV50 Package PG-SSOP-14 Marking 820F0V50 TLS820F0ELV33 PG-SSOP-14 820F0V33 2 Rev. 1.2 Datasheet 2021-04-08

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