Overview
The TLE7368E, also available in the package variant TLE7368EXUMA2, is a multifunctional power supply circuit designed specifically for automotive powertrain systems. It is optimized to work with standard 12 V batteries and is intended to supply and monitor next-generation 32-bit microcontroller families. The device integrates a Buck converter with linear regulators and voltage followers to achieve low power dissipation, enabling operation even at high ambient temperatures.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.5 V to 45 V |
| Operating Temperature Range | Tj = -40 °C to +150 °C |
| Buck Converter Output | 5.5 V / 2.5 A |
| Linear Regulator Outputs | LDO1: 5 V ±2%, 800 mA; LDO2: 3.3 V ±2% or 2.6 V ±2%, 700 mA |
| Core Supply | LDO3 control for external NPN power stage: 1.5 V ±2% |
| Tracking Regulators | 2 regulators following the main 5 V, 105 mA and 50 mA |
| Stand-by Regulator | Linear voltage regulator, hardware selectable output voltages as 1.0 V or 2.6 V, 30 mA |
| Package | Low Rthja Power-P-DSO-36; small exposed pad PG-DSO-36 |
| AEC Qualification | Yes |
| RoHS Compliance | Yes (for PG-DSO-36 package) |
Key Features
- High-efficiency next-generation microcontroller power supply system
- Wide battery input voltage range
- Operating temperature range from -40 °C to +150 °C
- Integrated current mode Buck converter delivering 5.5 V/2.5 A
- Post-regulators for system and controller I/O supply with high accuracy
- Integrated linear regulator control circuit for controller cores
- Tracking regulators for off-board supply
- Stand-by regulator with low current consumption and hardware-selectable output voltages
- Undervoltage detection and monitoring circuits
- Window watchdog circuit and overcurrent protection on all regulators
- Power sequencing on controller supplies and overtemperature shutdown
Applications
- Powertrain: Transmission, Engine Management Systems (EMS)
- Safety: Electronic Power Steering (EPS)
Q & A
- What is the primary application of the TLE7368E?
The TLE7368E is primarily designed for automotive powertrain systems.
- What is the input voltage range of the TLE7368E?
The input voltage range is from 4.5 V to 45 V.
- What are the output voltages provided by the linear regulators?
The linear regulators provide output voltages of 5 V, 3.3 V (or 2.6 V), and 1.5 V.
- What is the purpose of the stand-by regulator?
The stand-by regulator provides a low-current supply for memory circuits and other components during standby mode, reducing battery consumption.
- Does the TLE7368E have overcurrent protection?
Yes, the TLE7368E includes overcurrent protection on all regulators.
- What is the operating temperature range of the TLE7368E?
The operating temperature range is from -40 °C to +150 °C.
- Is the TLE7368E AEC qualified?
Yes, the TLE7368E is AEC qualified.
- What packages are available for the TLE7368E?
The device is available in Low Rthja Power-P-DSO-36 and small exposed pad PG-DSO-36 packages.
- Does the TLE7368E support power sequencing?
Yes, the device supports power sequencing on controller supplies.
- Is the TLE7368E RoHS compliant?
Yes, the PG-DSO-36 package variant is RoHS compliant.
