NR1700DC000AE1P

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The NR1700DC000AE1P is an automotive-grade, CMOS-based adjustable output low dropout regulator featuring a maximum input voltage of 42 V and a continuous output current capability of 200 mA. It operates within a temperature range of -40 °C to 125 °C and holds AEC-Q100 Grade 1 qualification. The device provides a typical quiescent current of 11.5 µA and a shutdown current of 0.1 µA. Its adjustable output voltage spans from 1.2 V to 24.0 V with a feedback voltage accuracy of -0.5% to +0.7% at 25 °C. Integrated protection functions include thermal shutdown, overcurrent protection with foldback characteristics, and short-circuit current limiting.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• High feedback voltage accuracy ranging from -0.5% to +0.7% at 25 °C for precise power rail regulation.
• Supports wide capacitance ranges of output ceramic capacitors from 0.1 μF to 100 μF to ensure stable operation.
• Includes active enable functionality via the EN pin, allowing for system power management and low-power shutdown states.
• Features comprehensive protection mechanisms including thermal shutdown, overcurrent protection with foldback, and short-circuit current limiting.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Car accessories such as car audio, car navigation systems, and ETC systems
• Body control applications including keyless/smart entry systems
• Power doors and power windows in automotive chassis and body control environments

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify that the ordering suffix DC corresponds specifically to the SOT-23-5-DC package configuration. Confirm the AE1P suffix aligns with the required automotive grade (Chassis, Body control, and In-vehicle) and packing specifications. Ensure compatibility with the specified RoHS and halogen-free requirements before finalizing procurement orders.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when designing automotive power systems requiring high input voltage tolerance up to 42 V. The adjustable output feature allows flexibility in setting voltage rails between 1.2 V and 24.0 V using external resistors. Consider the thermal resistance characteristics of the SOT-23-5-DC package for junction temperature calculations under specific load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the NR1700 series of automotive LDO regulators manufactured by Nisshinbo Micro Devices Inc. The series is designed for robust performance in demanding automotive environments, offering high reliability tested under stringent conditions compared to consumer products. It complements other PMIC solutions for integrated power management in vehicle electronics.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

NR1700DM000AE1P is a documented alternative within the same series, utilizing the SOT-89-5-DM package instead of SOT-23-5-DC while maintaining identical electrical specifications and automotive grading.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

What is the recommended method to prevent output voltage overshoot during startup?

To prevent the output voltage from exceeding the set value when the input voltage is below 3.5 V, raise the input voltage at a slew rate of 35 V/ms or faster, or activate the EN pin only after the input voltage exceeds 3.5 V.

How does the Enable (EN) pin function internally?

The EN pin is internally pulled down with a constant current of typically 0.3 µA. Applying a high voltage activates the device, while a low voltage shuts it down. Leaving the pin open results in a shutdown state.