Features
• Output voltage tolerance ≤ ±2%
• 180 mA output current capability
• Low-drop voltage
• Very low standby current consumption
• Overtemperature protection
• Reverse polarity protection
• Short-circuit proof
• Adjustable reset threshold
• Watchdog for monitoring microprocessor
• Power-on and undervoltage reset with programmable delay time
• Reset low down to VQ = 1V
• Wide temperature range
• Suitable for use in automotive electronics
• Green Product (RoHS compliant)

Description
The OPTIREG™ linear TLE4263-2GS is a monolithic integrated very low dropout voltage regulator in a SMD
package PG-DSO-8, especially designed for automotive applications. An input voltage up to 45 V is regulated
to an output voltage of 5.0 V. The component is able to drive loads up to 180 mA. The IC is short-circuit proof
by the implemented current limitation and has an integrated overtemperature shutdown.
It additionally provides features like power-on and undervoltage reset with adjustable reset threshold, a
watchdog circuit for monitoring a connected microcontroller and an inhibit input for enabling or disabling the
component.
The reset output RO is set to “low” in case the output voltage falls below the reset switching threshold VQ,rt.
This threshold can be decreased down to 3.5 V by an external resistor divider. The power-on reset delay time
can be programmed by the external delay capacitor CD.

Potential applications
General automotive applications.