LDOs suit direct-to-battery automotive applications
Texas Instruments has announced 17 high-voltage LDOs which feature ultra-low quiescent current as low as 10uA in standby mode, lowering power consumption and increasing battery life. The AEC-Q100-qualified devices are suitable for applications that connect directly to a car or truck battery, including cluster, power steering and infotainment systems, door modules and lighting controls.
Supporting input voltages of up to 40V for normal operation and up to 45V for transient spikes in automotive design, the LDOs allow automotive subsystems to connect directly to the car battery. The TPS7A1601-Q1 can support up to 60V normal operation for heavy-duty equipment. An integrated window watchdog helps customers to meet the functional safety requirements on the system level.
Internal equivalent series resistance compensation gives designers the flexibility to choose from a wide range of output capacitors in order to reduce system cost and increase stability. Offering more accurate data from the off-board sensors, a tracking function provides close to zero tolerance between on-board and off-board power supplies.
Texas Instruments also offers evaluation modules and SPICE simulation models which allow designers to evaluate the AEC-Q100-qualified LDOs.
Available in an 8-pin MSOP-PowerPad, the TPS7A16xx-Q1 LDOs are priced at $1.65 in 1,000 unit quantities while the TPS7A66xx-Q1 LDOs are priced at $0.60 in 1,000 unit quantities. The TPS7B67xx-Q1 LDOs are available in a 20-pin HTSSOP package priced at $0.80 in 1,000 unit quantities.
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