onsemi NCV8501PDW100R2G

Overview

NCV8501PDW100R2G from onsemi is a 10 V, ±2.0% accuracy automotive-grade LDO linear regulator in SOW-16 exposed pad package, delivering 150 mA output current with 600 mV max dropout at full load, 90 µA quiescent current at light load, and integrated active RESET (functional down to 1.0 V), ENABLE, FLAG monitor, and DELAY timing functions - designed for battery-powered microprocessor systems requiring robust fault protection and early-warning reset signaling.

For engineers reviewing the NCV8501PDW100R2G datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, real-world design meaning of specifications, validated pin functions, automotive-qualified fault protections, and confirmed alternative options - all grounded in the official onsemi NCV8501 Series datasheet (Rev. 30, Feb. 2026).

Technical Context

The NCV8501PDW100R2G implements a bandgap-referenced error amplifier with thermal shutdown, reverse-battery (-15 V), short-circuit, and +60 V peak transient protection - enabling direct use in 12 V/24 V automotive power rails. Its RESET circuit operates independently of regulation status and remains valid down to VOUT = 1.0 V, while the FLAG comparator provides early warning via MON pin hysteresis (20–100 mV) and programmable threshold (1.10–1.31 V typical).

ENABLE logic supports direct battery tie with external resistor biasing; input threshold is ~2.55 V at +20 °C (up to 3.0 V at −40 °C). The DELAY pin sources 1.5–3.5 µA to set reset delay time (e.g., 23.8 ms with 33 nF), and the exposed-pad SOW-16 package achieves RJA = 56 °C/W and RJC = 15 °C/W for high-power-density automotive applications.

Key Specifications

Pinout & Package

SOW-16 exposed pad (Case 751AG) with thermal pad soldered to PCB ground plane for enhanced heat dissipation (RJC = 15 °C/W). Pin 16 is GND; exposed pad is electrically connected to GND and must be thermally anchored.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NCV8501PDW100R2G, the SO-8 NCV8501D100R2G trades thermal performance for smaller footprint, while TLV73310PDBVR reduces cost and size but forces system-level redesign to replicate supervision functionality and automotive ruggedness.

Availability

NCV8501PDW100R2G is available at Aetrix Electronics and suitable for automotive infotainment, body control modules, telematics units, and ADAS sensor hubs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant LDO performance.

Supply support for NCV8501PDW100R2G 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics for automotive, industrial, cloud, and IoT applications.

The NCV8501PDW100R2G belongs to the NCV8501 Series of micropower LDO regulators engineered specifically for automotive microprocessor power management - integrating precision regulation, supervision, and ruggedized protection in a single package.

FAQ

What is the minimum input voltage required for NCV8501PDW100R2G to maintain regulation?

The NCV8501PDW100R2G requires VIN ≥ VOUT + dropout voltage. With a max dropout of 600 mV at 150 mA, the minimum input is 10.6 V. At lighter loads (e.g., 1 mA), dropout drops to 150 mV, allowing operation down to 10.15 V. Below this, output collapses and RESET activates.

How does the FLAG function work in NCV8501PDW100R2G, and what is its typical response time?

The FLAG function in NCV8501PDW100R2G uses an on-chip comparator referenced to the bandgap (1.20 V typical on MON pin). When MON voltage falls below threshold, FLAG pulls low within <1 µs. Response time depends on external RC filtering; with typical 10 kΩ/10 nF, warning latency is ~30–100 ms before RESET assertion.

Can NCV8501PDW100R2G be used without connecting the DELAY pin?

Yes - the DELAY pin may be left unconnected if fixed-delay reset is not required. In that case, RESET asserts immediately upon VOUT falling below threshold (no programmable delay). However, leaving DELAY floating is not recommended; tie to GND if unused to avoid noise coupling.

What thermal design considerations apply to the exposed pad of NCV8501PDW100R2G?

The exposed pad of NCV8501PDW100R2G is internally connected to GND and must be soldered to a dedicated PCB copper pour tied to system ground. Minimum recommended pad area is 200 mm² (per Figure 23); increasing to 600 mm² reduces RJA from 56 °C/W to ~40 °C/W, critical for sustained 150 mA operation at +125 °C ambient.

Is NCV8501PDW100R2G pin-compatible with other members of the NCV8501 family?

Yes - all SOW-16 variants (e.g., NCV8501PDW50R2G, NCV8501PDW33R2G) share identical pinout and footprint. Only the output voltage differs; RESET thresholds, FLAG behavior, and ENABLE timing remain consistent across fixed-voltage versions.