1 Features
. AEC-Q100 qualified for automotive applications:
. Temperature grade 1: .40°C to +125°C, TA
. Junction temperature: .40°C to +150°C, TJ
. Input voltage range:
. Legacy chip: 5.5V to 42V (45V absolute max)
. New chip: 3.0V to 40V (42V absolute max)
. Maximum output current:
. Legacy chip: 450mA
. New chip: 500mA
. Output voltage accuracy: ±2.0% (across line, load
and temperature)
. Low dropout voltage: 500mV (max) at 300mA
. Low quiescent current:
. Legacy chip: 100μA (typ) at IOUT = 1mA
. New chip: 28μA (typ) at IOUT = 1mA
. Excellent line transient response (new chip):
. ±2% VOUT deviation during cold-crank
. ±2% VOUT deviation (1V/μs VIN slew rate)
. Power-good (reset) with programmable delay
period
. Stable with a 2.2μF or larger capacitor (new chip)
. Reverse-polarity protection (legacy chip)
. Overcurrent and overtemperature protection
. Packages:
. 5-pin TO-252 (KVU)
. 5-pin DDPAK/TO-263 (KTT)
. 20-pin HTSSOP (PWP) (legacy chip)

2 Applications
. Reconfigurable instrument clusters
. Body control modules (BCM)
. Always-on, battery-connected applications:
. Automotive gateways
. Remote keyless entries (RKE)

3 Description
The TLE4275-Q1 is a low-dropout linear regulator
designed to connect to the battery in automotive
applications. For the new chip, the device has an
input voltage range extending to 40V that drives
loads up to 500mA. This range allows the device
to withstand transients (such as load dumps) that
are anticipated in automotive systems. With only
a 28μA quiescent current at IOUT = 1mA (new
chip), the device is designed for powering always-on
components. Microcontrollers (MCUs) and controller
area network (CAN) transceivers in standby systems
are examples of such components.