onsemi NCV8535ML180R2G

Overview

NCV8535ML180R2G from onsemi is an automotive-grade, ultra-high-accuracy low-dropout linear regulator delivering 500 mA output at fixed 1.8 V with ±0.9% initial accuracy, 260 mV typical dropout at full load, and 33 µVrms output noise (with 10 nF NR capacitor). It operates from 2.9 V to 12 V input, supports reverse bias protection, and is stable with any 1.0 µF capacitor-including MLCC-enabling compact power supply design for DSP cores and display bias rails.

For engineers reviewing the NCV8535ML180R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, no-minimum-load stability, integrated noise reduction (NR) and sense (SENSE) pins, shutdown current of 70 nA, and thermal shutdown at 160 °C-critical for automotive infotainment and ADAS subsystems requiring high reliability under wide temperature variation.

Technical Context

The NCV8535ML180R2G implements a PMOS pass transistor architecture enabling ultra-low dropout and reverse bias protection without external components. Its internal reference is trimmed to ±0.9% at 25 °C and maintains ±1.5% over −40 °C to +125 °C, supporting operation in engine bay and cabin environments.

Stability is guaranteed across all ceramic, tantalum, and electrolytic capacitors ≥1.0 µF due to internal compensation; the SENSE pin enables remote voltage sensing for improved regulation at point-of-load, while the NR pin accepts an external 10 nF capacitor to reduce output noise by up to 43% versus NR-open configuration.

Key Specifications

Pinout & Package

NCV8535ML180R2G is housed in a thermally enhanced DFNW10 (5 mm × 6 mm, 0.75 mm height) package with exposed thermal pad (EPAD) for PCB heat sinking. Pin 1–2 are paralleled VOUT; Pin 3 is SENSE (for remote sensing); Pin 4 is GND; Pins 5–6 are NC; Pin 7 is NR (Noise Reduction); Pin 8 is SD (Shutdown); Pins 9–10 are paralleled VIN.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7B8233QDGNRQ1 and NCP1117ST18T3G, the NCV8535ML180R2G uniquely combines AEC-Q100 Grade 1 qualification, ±0.9% accuracy, remote SENSE capability, and sub-40 µVrms noise in a single 5×6 mm DFNW package-making it the only choice for safety-critical automotive LDO applications demanding both precision and robustness.

Availability

NCV8535ML180R2G is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, telematics gateways, and digital instrument clusters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for NCV8535ML180R2G 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, and IoT applications, with deep expertise in power management and automotive-grade reliability.

The NCV8535 series was designed specifically for automotive subsystems requiring ultra-precise, low-noise, and fail-safe voltage regulation-including infotainment SoCs, camera ISPs, and domain controllers operating across −40 °C to +125 °C.

FAQ

What is the maximum input voltage rating for the NCV8535ML180R2G?

The NCV8535ML180R2G has an absolute maximum input voltage rating of +16 V, but its recommended operating input range is 2.9 V to 12 V. Operation above 12 V may degrade long-term reliability and is not characterized per the datasheet. The device includes overvoltage clamp protection on the VIN pin to prevent latch-up during transients.

Does the NCV8535ML180R2G require an external capacitor on the SENSE pin?

No, the NCV8535ML180R2G does not require an external capacitor on the SENSE pin. The SENSE pin is a high-impedance feedback node intended for direct connection to the load-side of the output trace to compensate for PCB trace resistance. Adding capacitance here would destabilize the control loop and is explicitly discouraged in the datasheet.

Can the NCV8535ML180R2G be used without connecting the NR pin?

Yes, the NCV8535ML180R2G functions correctly with the NR pin left open or tied to GND. However, leaving NR unconnected results in higher output noise (52 µVrms vs. 33 µVrms with 10 nF to GND). For noise-sensitive applications like ADC references or RF bias rails, the 10 nF NR capacitor is strongly recommended.

Is the NCV8535ML180R2G pin-compatible with other variants in the NCV8535 family?

Yes, all fixed-output variants of the NCV8535-including NCV8535ML180R2G, NCV8535ML330R2G, and NCV8535ML500R2G-share identical DFNW10 pinout, package dimensions, and thermal pad layout. Only the output voltage and marking differ; no PCB redesign is needed when changing between fixed-voltage versions.

What thermal derating applies to the NCV8535ML180R2G at 125 °C ambient?

At 125 °C ambient temperature with standard JEDEC 51-2 2 oz copper board, the NCV8535ML180R2G's junction-to-air thermal resistance is 66 °C/W. With a maximum junction temperature of 150 °C, the allowable power dissipation drops to 377 mW-limiting continuous output current to approximately 210 mA at 1.8 V output and 12 V input (V_DO ≈ 1.03 V). Layout with enhanced copper area is required for full 500 mA operation at high ambient.