Device Overview
TLE7368-3E is a multifunction automotive microcontroller power-supply IC that combines a buck pre-regulator, multiple post-regulators, tracking outputs and a standby rail in one PG-DSO-36 device.
Power-Rail Architecture
| Parameter | Confirmed value | Scope / condition |
|---|---|---|
| Function | Multifunction automotive microcontroller power supply | exact TLE7368-3E variant |
| Battery Input | up to 45 V | wide battery-input capability; datasheet also states operation below 4.5 V |
| Buck Preregulator | 5.5 V / 2.5 A | integrated current-mode buck pre-regulator |
| Ldo1 | 5 V ±2%; 800 mA current limit | system/controller I/O post-regulator |
| Ldo2 | 3.3 V ±2% or 2.6 V ±2%; 700 mA current limit | hardware-selectable output |
| Ldo3 Exact Variant | 1.3 V ±2% | external NPN core-supply control; exact TLE7368-3E option |
| Tracking Outputs | 105 mA and 50 mA | two tracking regulators following main 5 V |
| Standby Output | 1.0 V or 2.6 V; 30 mA | hardware-selectable standby regulator |
| Junction Temperature | -40 to +150 °C | operating junction range |
| Package | PG-DSO-36 | exposed-pad package |
Exact-Variant Integration Notes
The integrated pre-regulator generates 5.5 V with 2.5 A capability before the post-regulator stages. LDO1 provides 5 V with an 800 mA current limit, while LDO2 can be hardware-selected for 3.3 V or 2.6 V with a 700 mA current limit. These are separate rails with different roles and must not be combined into one current rating.
The -3E suffix matters at the controller-core supply stage: the LDO3 control circuit is the 1.3 V ±2% option for an external NPN pass device. Related TLE7368 variants use different core voltages, so this value is exact-variant information rather than a family-wide default.
Two tracking regulators provide 105 mA and 50 mA paths following the main 5 V rail, and the standby regulator can be configured for 1.0 V or 2.6 V at 30 mA. The device also covers a wide automotive battery-input domain up to 45 V and operates over a -40 to +150 °C junction range.
Package and Lifecycle
The verified package for this exact orderable is PG-DSO-36. Infineon currently lists the exact OPN as active. Manufacturer lifecycle information does not state HKEQGOO stock, lead time, MOQ, or final availability.
Official Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment.
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