TLF30681QVS01 The TLF30681QVS01 is a multi-rail supply for ADAS-applications like 77GHz short range radar, 24GHz radar, and 60GHz radar (e.g. In-cabin sensing).
It’s using an efficient and flexible pre-/post-regulator concept over a wide input voltage range. The high switching frequency range of the battery connected, synchronous buck (3.3 V/2.3 A) with integrated switches allows optimization in usage of small filter components. An integrated synchronous SMPR-buck (switch-mode post-regulator) with high switching frequency enables supply for core or for memory (0.9 V-1.3 V/1.0 A). Additionally, an asynchronous SMPR-boost (5.0 V/0.25 A), running as well with high switching frequency, provides the 5 V-domain for transceiver. Integrated switches, compensation and the high switching frequency is both minimizing the number and the value of external components required.
Additional features are under-/over-voltage monitoring (via independent reference) of all integrated and up to two external rails, as well as a flexible watchdog concept to supervise the µC offers high flexibility for multiple applications.
The automotive qualified TLF30681QVS01 is available in small, thermally enhanced VQFN-48 capable for automated optical inspection.
The device is optimized for 76-77GHz short range radar applications within Infineon’s radar chipset consisting of RXS815xPLA RASIC™ MMIC, TC33xDA AURIX™ µC, and CAN-transceiver TLE9250VLE. All features and functions are optimized to work together enabling easy, fast implementation.
Functional safety documents for TLF30681QVS01 are available on request.
To get access to the complete OPTIREG™ PMIC technical documentation please follow the instruction here.
Summary of Features
- Pre- / Post-regulator concept:
- Buck / SMPR-Buck & SMPR-Boost
- µC or MMIC or DSP
- Core or memory
- UV/OV-monitoring for integrated rails
- UV/OV-monitoring for external rails
- Flexible watchdog
- High efficiency and flexibility
- Wide temperature range
- Reduced number of external components for minimized PCB-area
- Minimized values external components for cost optimization