Texas Instruments TLE4275-Q1 LDO Voltage Regulators
Texas Instruments TLE4275-Q1 LDO Voltage Regulators are designed to connect to the battery in automotive applications. These regulators support an input voltage of up to 40V, provide 500mA of current, and withstand automotive transients, including load dumps. The TLE4275-Q1 regulators' new chip version features a state-of-the-art transient response, enabling the output to quickly respond to changes in load or line. These regulators incorporate several internal circuits for protection against overload and overtemperature. The TLE4275-Q1 devices are AEC-Q100 qualified for automotive applications. These regulators are ideal for Reconfigurable instrument clusters Body Control Modules (BCM), always-on battery-connected applications like automotive gateways, and Remote Keyless Entries (RKE).
Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1 -40°C to 125°C, TA
- -40°C to 150°C, TJ junction temperature range
- Input voltage range:
- 5.5V to 42V (45V absolute maximum) for legacy chip
- 3.0V to 40V (42V absolute maximum) for new chip
- Maximum output current:
- 450mA legacy chip
- 500mA new chip
- ±2.0% output voltage accuracy (across line, load, and temperature)
- 500mV (maximum) at 300mA low dropout voltage
- Low quiescent current:
- 100µA (typical) at IOUT = 1mA legacy chip
- 28µA (typical) at IOUT = 1mA new chip
- 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)
Applications
- Always-on, battery-connected applications:
- Automotive gateways
- Remote Keyless Entries (RKE)
- Reconfigurable instrument clusters
Body Control Modules (BCM)
Application Diagram
Performance Graph
