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The TPS7B68-Q1 is a 500mA watchdog LDO designed for operation up to 40V with a typical quiescent current of only 19µA at light load conditions, incorporating a programmable function for selecting a window or standard watchdog and using an external resistor to set the watchdog time to within 10% accuracy.

Features

- Suitable for automotive electronics applications

- With the following results in accordance with AEC-Q100:

- Device temperature class 1: ambient operating temperature range of -40°C to +125°C

- Device HBM ESD classification class 2

- Device CDM ESD classification class C4B

- Maximum output current: 500mA

- Wide VIN input voltage range from 4V to 40V, transients up to 45V

- Two fixed output voltages of 3.3V and 5V

- Maximum dropout voltage: 600mV (500mA current)

- Stable over a wide range of capacitance (4.7µF to 500µF) and ESR (0.001Ω to 20Ω) when operating with output capacitors

- Low quiescent current (I(Q)):

- < 4µA when EN is low (off mode)

- 19µA typical at light load (WD_EN high) (watchdog disabled)

- Configurable for window watchdog and standard watchdog

- Switching window ratio configurable as 1:1 or 8:1

- Fully adjustable watchdog period (10ms to 500ms)

- 10% precision watchdog period

- Dedicated WD_EN pin for watchdog switching control

- Fully adjustable power normal threshold and power normal delay period

- Low input voltage tracking for UVLO

- Integrated fault protection:

- Overload current limit protection

- Thermal shutdown

- 28-pin HTSSOP package

Applications

- Automotive MCU power supplies

- Body Control Modules (BCM)

- Body comfort modules

- EV and HEV battery management systems (BMS)

- Electronic gear shifters

- Transmission Control Unit (TCU)

- Electric Power Steering (EPS)

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.