onsemi NCV87706DT50RKG

Overview

NCV87706DT50RKG from onsemi is a high-accuracy, low-quiescent-current automotive-grade LDO regulator delivering 5.0 V ±2% output at up to 600 mA, featuring thermal shutdown, overcurrent protection, and reverse-battery protection. It operates across –40 °C to +150 °C ambient, supports 5.5 V to 45 V input, and maintains regulation down to 5.5 V dropout at full load.

For engineers reviewing the NCV87706DT50RKG datasheet, pinout, applications, or equivalent options, key selection criteria include automotive AEC-Q100 Grade 1 qualification, ultra-low 22 µA quiescent current in enable-off state, integrated reset flag with programmable delay, and robust fault reporting via open-drain FLAG pin.

Technical Context

The NCV87706DT50RKG integrates a precision bandgap reference, error amplifier, and PMOS pass transistor in a single monolithic IC. Its internal architecture enables stable regulation under fast load transients (≤10 µs response) and wide VIN variation while maintaining tight output tolerance over temperature and line/load conditions.

It implements active current limiting with foldback behavior and includes an internal thermal sensor that triggers shutdown at ≥175 °C junction temperature. The FLAG pin asserts low during undervoltage, overtemperature, or overcurrent events - all independently detectable via external timing components.

Key Specifications

Pinout & Package

NCV87706DT50RKG is housed in a thermally enhanced SOIC-8 package (SOIC-8 NB, 3.9 mm × 4.9 mm, 1.27 mm pitch) with exposed thermal pad for PCB heat sinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive LDO regulator applications.

Compared with TLV73350PDBVR and MAX1725EUT+T, the NCV87706DT50RKG uniquely combines AEC-Q100 Grade 1 qualification, reverse-battery tolerance, and integrated FLAG/DELAY functionality - enabling single-chip compliance with modern automotive functional safety and diagnostic requirements.

Availability

NCV87706DT50RKG is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera ECUs, and electric power steering systems requiring stable component supply across long production lifecycles.

Supply support for NCV87706DT50RKG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi is a global semiconductor leader focused on energy-efficient innovation for automotive, industrial, cloud, medical, and IoT applications, with manufacturing and R&D operations across Asia, North America, and Europe.

The NCV87706DT50RKG belongs to onsemi's Automotive Power Management portfolio, designed specifically to meet stringent AEC-Q100 reliability, thermal, and fault-diagnostic requirements of next-generation vehicle electronic control units.

FAQ

What is the maximum input voltage rating for the NCV87706DT50RKG?

The NCV87706DT50RKG supports an absolute maximum input voltage of 45 V, enabling reliable operation during automotive load-dump transients. This rating is validated per ISO 7637-2 Pulse 5a testing and allows direct connection to 12 V and 24 V battery rails without external clamping circuitry. The device remains functional down to 5.5 V input, covering cold-crank conditions. Always refer to the latest onsemi datasheet revision for derating curves and safe operating area limits for the NCV87706DT50RKG.

Does the NCV87706DT50RKG include reverse-polarity protection?

Yes, the NCV87706DT50RKG features integrated reverse-battery protection and can withstand –40 V applied to the IN pin without damage or latch-up. This eliminates the need for an external series Schottky diode in typical automotive installations, reducing BOM count and forward-voltage drop losses. The protection is inherent to the PMOS pass transistor topology and does not require additional external components to function. This capability is fully specified and tested per AEC-Q100 stress test conditions for the NCV87706DT50RKG.

How is the reset timeout configured on the NCV87706DT50RKG?

The reset timeout for the NCV87706DT50RKG is set by connecting an external capacitor between the DELAY pin and GND. Capacitor values from 1 nF to 220 nF yield programmable delays from approximately 1 ms to 200 ms. The relationship is linear and specified in the datasheet's timing characteristics table. This allows precise alignment with MCU boot requirements and avoids false resets during slow power-rail ramp-up. No resistor is required - timing is capacitor-only for the NCV87706DT50RKG.

What thermal management considerations apply to the NCV87706DT50RKG?

The NCV87706DT50RKG uses an SOIC-8 NB package with an exposed thermal pad (TPAD) internally tied to GND. For optimal thermal performance, TPAD must be soldered to ≥200 mm² of inner-layer or bottom-side copper pour using ≥4 thermal vias (0.3 mm diameter). Junction-to-ambient θ_JA drops from 110 °C/W (no copper) to ~45 °C/W with proper layout. Thermal shutdown activates at 175 °C and recovers automatically after cooldown - critical for transient overload handling in the NCV87706DT50RKG.

Can the NCV87706DT50RKG be used in non-automotive applications?

Yes, the NCV87706DT50RKG can be used in industrial or harsh-environment applications requiring wide-input, high-reliability LDO regulation - such as railway control, off-highway equipment, or telecom power systems. Its –40 °C to +150 °C operating range, 45 V max input, and reverse-battery tolerance provide robustness beyond standard commercial LDOs. However, its AEC-Q100 qualification adds cost and may be unnecessary unless environmental stress levels match automotive requirements. Designers should verify ESD, EMC, and long-term reliability data for the target use case of the NCV87706DT50RKG.