Overview
The L9758, produced by STMicroelectronics, is a multiple output voltage regulator designed to support high-end automotive microcontrollers used in powertrain applications. This device integrates linear, switchmode (buck and boost), and tracking regulators to provide a comprehensive power management solution. It is AEC-Q100 qualified, ensuring reliability and performance in automotive environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Temperature Range | -40 °C to +125 °C | °C |
| Package | PowerSO-36 | |
| Battery Supply Voltage | 4 to 26.5 V (continuous), 4 to 40 V (transient, t < 400 ms) | V |
| Switching Preregulator Average Current | 0 to 2.5 A | A |
| VDD5 Linear Regulator Output | 5 V, 2% @ 1 A | V |
| VDDL Linear Regulator Output | Programmable 3.3 V or 2.6 V, 2% @ 1 A | V |
| VCORE Linear Regulator Output | Programmable 1.05 to 2.8 V, 2% @ 1 A | V |
| Standby Memory Regulator Output (VKAM) | Programmable 1 V or 1.5 V, 10% @ 10 mA | V |
| Standby Regulator Output (VSTBY) | Programmable 2.6 V or 3.3 V, 10% @ 10 mA | V |
| Tracking Regulators | Four 5 V ± 7 mV @ 50 mA | V |
Key Features
- AEC-Q100 qualified for automotive reliability
- Buck converter pre-regulated supply rated for a minimum of 2 A (RMS)
- Optional Boost converter for low battery conditions
- Programmable LDO regulators for VDD5, VDDL, and VCORE
- Programmable standby memory and alternate standby regulators
- Four protected tracking regulators with selectable external voltage reference
- Independent reset signals and standby voltage monitor
- Battery voltage and logic level thresholding
Applications
The L9758 is specifically designed for high-end automotive microcontrollers used in powertrain applications. It is suitable for various automotive systems that require multiple regulated voltage outputs, such as engine control units, transmission control units, and other powertrain control modules.
Q & A
- What is the temperature range of the L9758? The L9758 operates within a temperature range of -40 °C to +125 °C.
- What is the package type of the L9758? The L9758 is available in the PowerSO-36 package.
- What are the battery supply voltage ranges for the L9758? The continuous battery supply voltage range is 4 to 26.5 V, and the transient range is 4 to 40 V for less than 400 ms.
- What are the output voltages of the VDD5, VDDL, and VCORE regulators? The VDD5 regulator outputs 5 V, 2% @ 1 A; the VDDL regulator is programmable to 3.3 V or 2.6 V, 2% @ 1 A; and the VCORE regulator is programmable from 1.05 to 2.8 V, 2% @ 1 A.
- Does the L9758 have standby power regulators? Yes, the L9758 includes programmable standby memory and alternate standby regulators.
- How many tracking regulators does the L9758 have? The L9758 has four protected tracking regulators.
- What are the reset signals provided by the L9758? The L9758 provides independent reset signals for VDD5 and VDDL supplies, along with a standby voltage monitor.
- Is the L9758 qualified for automotive use? Yes, the L9758 is AEC-Q100 qualified.
- What are the typical applications of the L9758? The L9758 is used in high-end automotive microcontrollers for powertrain applications, such as engine control units and transmission control units.
- Does the L9758 have a boost converter? Yes, the L9758 includes an optional Boost converter for low battery conditions.
