S-85S1PD11-I8T1U

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The S-85S1PD11-I8T1U device is a fully integrated power management chip designed for automotive applications and is part of the product family consisting of DC-DC switching regulators and voltage regulators. This low-power chip, along with its sister S-85S1PD11-I3TIU devices, provides the building blocks for a full automotive power management and control system. The S-85S1PD11-I8T1U can easily be integrated into an application to provide flexible power management and control of voltage, current, and temperature.

The S-85S1PD11-I8T1U is a switching voltage regulator with integrated current limit, overvoltage protection, soft start, and active current foldback. This device utilizes a unique wide input voltage range, allowing it to operate from 4.5 V to 32 V, with a fixed output voltage of 3.3 V and current limit of up to 500 mA. In addition, it has adjustable output voltage from 1.2 V to 28 V in 0.1 V steps, with a peak current limit of 5 A. The integrated current foldback feature allows for a stable output voltage even during periods of high load transients.

The S-85S1PD11-I8T1U includes an integrated ORing diode, allowing it to replace two external diode components typically used in automotive system designs. This feature reduces the external component count and total cost of the system. Additionally, the device provides a configurable bias current of up to 1 A to power external components such as FETs and ADC converters.

The S-85S1PD11-I8T1U includes an integrated power switch, allowing it to control its own output voltage, as well as that of other devices. This makes it suitable for applications where one or more components in the system need to be shielded from voltage spikes, such as in active shielding solutions. This feature is also helpful when voltage regulation needs to be done on a group of components, such as those in a DC motor drive system.

Furthermore, the S-85S1PD11-I8T1U has an integrated power-good output flag to indicate when its output voltage is in regulation. This allows power system designers to quickly detect when typical power supply issues occur, such as excessive voltage drop or excessive current draw.

The S-85S1PD11-I8T1U is an ideal choice for automotive power system designers needing a cost-effective solution that can be easily integrated into their system. With its wide input voltage range, adjustable output voltage range, high current limit capability, and integrated components, the S-85S1PD11-I8T1U makes an ideal choice for automotive applications requiring high reliability and robust power system design.

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