onsemi NCV8501PDW100G

Overview

NCV8501PDW100G from onsemi is a 10 V fixed-output automotive-grade LDO linear regulator in SOW-16 exposed pad package, delivering 150 mA output current with ±2.0% accuracy, 0.6 V max dropout at full load, and 90 µA quiescent current at 100 µA load - designed for battery-powered microprocessor systems requiring RESET, ENABLE, FLAG monitor, and delay functionality.

For engineers reviewing the NCV8501PDW100G datasheet, pinout, applications, or equivalent options, key selection criteria include its 10 V output stability across −40 °C to +150 °C, early-warning FLAG threshold (1.20 V typical on MON pin), RESET activation down to 1.0 V output, and automotive-grade fault protection including +60 V load dump tolerance and −15 V reverse voltage capability.

Technical Context

The NCV8501PDW100G integrates a precision bandgap reference, error amplifier, and independent low-voltage detection circuitry enabling functional RESET validity down to VOUT = 1.0 V. Its FLAG/MON comparator provides programmable early warning via external resistor divider, while the DELAY pin sources 2.5 µA (typ) to set reset timeout using an external capacitor.

Control logic includes active-high ENABLE with internal pull-down, sleep-mode IQ of 12–30 µA, and thermal shutdown triggered at 150–180 °C. Protection features are implemented at silicon level: reverse-battery clamp, short-circuit current limiting (151–300 mA), and thermal overload shutdown - all qualified for automotive EMC environments.

Key Specifications

Pinout & Package

SOW-16 exposed pad (Case 751AG), thermally enhanced package with 16 leads and integrated thermal pad for improved heat dissipation in high-ambient automotive applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NCV8501D100R2G and TLV73310PDRVR, the NCV8501PDW100G uniquely combines 10 V regulation, automotive qualification, integrated RESET/FLAG/DELAY, and thermally optimized SOW-16 package - making it the sole option for high-reliability, function-integrated 150 mA automotive LDO designs.

Availability

NCV8501PDW100G is available at Aetrix Electronics and suitable for body control modules, ADAS ECUs, infotainment head units, and telematics control units requiring stable component supply, automotive-grade reliability, and integrated power-monitoring functionality.

Supply support for NCV8501PDW100G 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 specializing in energy-efficient power management, analog, sensors, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The NCV8501PDW100G belongs to the NCV8501 series of micropower LDO regulators engineered specifically for automotive microprocessor power domains - emphasizing ultra-low IQ, wide-input transient tolerance, and integrated system-level monitoring features.

FAQ

What is the minimum input voltage required for NCV8501PDW100G to regulate 10 V output at 150 mA?

The NCV8501PDW100G requires VIN ≥ 10.6 V to maintain regulation at 150 mA, based on its maximum 600 mV dropout voltage. At lighter loads, dropout decreases - e.g., 150 mV at 1 mA - allowing operation from lower inputs during standby. Input must remain within absolute max rating of −15 V to +45 V DC.

How does the FLAG function of NCV8501PDW100G differ from standard power-good signals?

The FLAG function of NCV8501PDW100G is an early-warning comparator referenced to a 1.20 V internal bandgap, activated via external resistor divider on the MON pin. Unlike basic power-good outputs, FLAG asserts *before* RESET - providing deterministic time (T_WARNING) for firmware to complete critical tasks prior to forced shutdown.

Can NCV8501PDW100G be used without connecting the DELAY pin?

Yes - the DELAY pin may be left unconnected for immediate RESET assertion upon undervoltage detection. When unused, internal discharge paths ensure RESET responds without delay. However, connecting an external capacitor (e.g., 33 nF) enables programmable reset timeout, which is recommended for noise-immune system initialization sequences.

What thermal performance can be expected from NCV8501PDW100G in a typical 4-layer automotive PCB?

In a standard 4-layer board with 1 oz copper, 200 mm² thermal pad copper pour, and 2 oz inner-layer ground planes, the NCV8501PDW100G achieves RJA ≈ 56 °C/W (per datasheet). At 150 mA and 12 V input, power dissipation is ~300 mW - resulting in ~17 °C rise above ambient, well within its −40 °C to +150 °C operating range.

Is NCV8501PDW100G pin-compatible with other members of the NCV8501 family?

No - NCV8501PDW100G uses the SOW-16 exposed pad package (Case 751AG), while SO-8 variants (e.g., NCV8501D100G) have different pin count, layout, and thermal characteristics. Pin functions differ between adjustable and fixed-output versions; the PDW100G variant maps RESET and DELAY to dedicated pins (6 and 4), unlike SO-8 adjustable versions which use VADJ and FLAG differently.