onsemi NCV8535MN190R2G

Overview

NCV8535MN190R2G from onsemi is a fixed-output, 1.9 V, 500 mA ultra-high-accuracy low-dropout linear regulator with ±0.9% output voltage accuracy at 25 °C, 260 mV typical dropout at full load, and 33 µVrms output noise (with 10 nF C_NR). It features reverse bias protection, thermal shutdown, and stable operation with any capacitor ≥1.0 µF - deployed in automotive DSP supplies and camera sensor rails.

For engineers reviewing the NCV8535MN190R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, no-minimum-load stability, NR pin for noise reduction, SD-controlled shutdown (0.07 µA quiescent), and DFNW10 3×3 mm package with exposed thermal pad.

Technical Context

The NCV8535MN190R2G 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% over line/load/temperature, and it integrates dedicated SENSE and NR pins to support remote sensing and optional 10 nF noise-reduction capacitance.

Stability is guaranteed across −40 °C to +125 °C junction temperature with any output capacitor type (including MLCC), eliminating ESR requirements. Shutdown is active-low via the SD pin, and ground current remains below 14 µA in regulation at light loads - critical for always-on automotive modules.

Key Specifications

Pinout & Package

NCV8535MN190R2G is housed in a thermally enhanced DFNW10 (3 mm × 3 mm, 0.75 mm height) package with an exposed EPAD for PCB heat sinking. The package complies with JEDEC MO-229 and is Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NCV8535MN190R2G, the NCV8535MN180R2G offers identical automotive robustness but mismatches 1.9 V loads, while TLV73319PDBVR trades current capacity, protection, and qualification for smaller size and lower cost - making NCV8535MN190R2G the sole choice for AEC-Q100-compliant 1.9 V/500 mA applications.

Availability

NCV8535MN190R2G is available at Aetrix Electronics and suitable for automotive camera modules, DSP core supplies, and ADAS radar SoC auxiliary rails requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for NCV8535MN190R2G 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 technologies for automotive, industrial, cloud, medical, and IoT applications - with deep expertise in power management and automotive-grade reliability.

The NCV8535 series is designed specifically for automotive power rails demanding ultra-high accuracy, low noise, and robust fault protection - targeting camera, radar, infotainment, and body electronics subsystems.

FAQ

What is the maximum input voltage rating for NCV8535MN190R2G?

The NCV8535MN190R2G has an absolute maximum input voltage of +16 V, with recommended operating range from 2.9 V to 12 V. Operation above 12 V is permissible only for short-duration transients such as ISO 7637-2 pulse 1 (−150 V) or pulse 5a (load dump), provided external clamping is implemented - the device itself does not clamp input overvoltage.

Does NCV8535MN190R2G require an external resistor divider for output voltage setting?

No, NCV8535MN190R2G is a fixed-output variant delivering 1.9 V without external components. Unlike the adjustable NCV8535ADJ version, it contains internal feedback resistors trimmed for ±0.9% accuracy at 25 °C - eliminating BOM cost and layout complexity for 1.9 V applications.

How is thermal performance affected if the EPAD is not soldered to the PCB ground plane?

If the EPAD of NCV8535MN190R2G is left unsoldered or poorly connected, junction-to-air thermal resistance increases from 66 °C/W (1-pad board) to ~215 °C/W (min-pad board), risking thermal shutdown at >150 mA load in still air. Full thermal performance requires soldering the EPAD to a ≥2 oz copper ground plane with ≥4 thermal vias.

Can the SENSE pin of NCV8535MN190R2G be left unconnected?

Yes, the SENSE pin may be left unconnected or tied directly to pins 1–2 (VOUT) if remote sensing is not required. When tied locally, the device operates in standard regulation mode with typical load regulation of 0.04 mV/mA - sufficient for most short-trace PCB applications.

Is NCV8535MN190R2G compatible with ceramic output capacitors smaller than 1.0 µF?

No - the NCV8535MN190R2G is characterized and guaranteed stable only with output capacitance ≥1.0 µF. Using smaller ceramics (e.g., 0.47 µF) risks instability and oscillation, especially under light loads. The 1.0 µF minimum applies to all capacitor types including X7R/X5R MLCCs.