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

maximum)

. New chip: 3.0V to 40V (42V absolute

maximum)

. Maximum output current: 500mA (new chip)

. Output voltage accuracy: ±2.0% (across line, load,

and temperature)

. Low dropout voltage: 500mV (maximum) at 300mA

. Low quiescent current:

. Legacy chip: 100μA (typical) at IOUT = 1mA

. New chip: 17μA (typical) at light loads

. Excellent line transient response (new chip):

. ±2% VOUT deviation during cold-crank

. ±2% VOUT deviation (1V/μs VIN slew rate)

. Stable with a 2.2μF or larger capacitor (new chip)

. Reverse-polarity protection (legacy chip)

. Packages:

. 3-pin TO-252 (KVU)

. 3-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 TL720M05-Q1 is a low-dropout linear regulator,

designed to connect to the battery in automotive

applications. The device has an input voltage range

extending to 40V (new chip). This range allows

the device to withstand transients (such as load

dumps) that are anticipated in automotive systems.

With low quiescent current consumption at light

loads, the device is designed for powering always-on

components. Examples of always-on components are

microcontrollers (MCUs) and controller area network

(CAN) transceivers in standby systems.

The device (new chip) has a state-of-the-art transient

response that allows the output to quickly react to

changes in load or line. For example, during coldcrank

conditions. Additionally, the device has a novel

architecture that minimizes output overshoot when

recovering from dropout. During normal operation, the

device has a tight DC accuracy of ±2% over line, load,

and temperature.

The device also incorporates a number of

internal circuits for protection against overload and

overtemperature. The legacy chip also provides

protection against reverse polarity.

The TL720M05-Q1 is available in thermally

conductive packaging to allow the device to efficiently

transfer heat to the circuit board.