onsemi NCV8130BMX180TCG

Overview

NCV8130BMX180TCG from onsemi is a 300 mA very low dropout (VLDO) CMOS voltage regulator with NMOS pass transistor and separate bias rail (VBIAS), delivering fixed 1.80 V output with ±1.5% accuracy over −40°C to +125°C, ultra-low 175 mV dropout at 300 mA, and stable operation with only 1 µF ceramic output capacitor - designed for automotive point-of-load regulation in FPGA, DSP, and camera power systems.

For engineers reviewing the NCV8130BMX180TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its dual-rail architecture (VIN/VBIAS), bias current of 80 µA typ., AEC-Q100 Grade 1 qualification, XDFN6 1.2 mm × 1.2 mm package, and absence of active discharge (non-A variant).

Technical Context

The NCV8130BMX180TCG employs an NMOS pass transistor architecture powered by a dedicated VBIAS rail (2.4–5.5 V), decoupling control circuitry from input supply noise and enabling stable regulation even when VIN approaches VOUT. Its internal UVLO monitors VBIAS with 1.6 V threshold and 0.2 V hysteresis, ensuring reliable startup under varying bias conditions.

Unlike PMOS LDOs, this topology minimizes sensitivity to output capacitor ESR and enables monotonic start-up with controlled inrush current. The device features thermal shutdown at 160°C (releasing at 140°C), current limiting up to 950 mA, and logic-level enable (VEN(H) = 0.9 V) with 0.5 µA disable current - optimized for battery-constrained automotive and industrial embedded systems.

Key Specifications

Pinout & Package

XDFN6 1.2 mm × 1.2 mm package (Case 711AT) with exposed thermal pad soldered to PCB ground plane for optimal thermal performance (R_JA = 170°C/W). Pin 2 is true no-connect (N/C); thermal pad must be electrically connected to GND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-dropout linear regulator applications.

Compared with NCV8130AMX180TCG, the NCV8130BMX180TCG omits active discharge to reduce cost and simplify bias design; versus TLD1120EL, it delivers 20% higher current and superior PSRR via dedicated VBIAS, making it preferable for noise-critical 300 mA automotive loads.

Availability

NCV8130BMX180TCG is available at Aetrix Electronics and suitable for automotive camera modules, FPGA I/O power, and telematics DSP supplies requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for NCV8130BMX180TCG 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 silicon solutions for automotive, industrial, cloud, and IoT applications.

The NCV8130BMX180TCG belongs to onsemi's automotive-grade VLDO regulator family, engineered specifically for noise-sensitive, high-reliability point-of-load regulation in vehicles - emphasizing low dropout, ultra-low noise, and AEC-Q100 Grade 1 robustness.

FAQ

What is the maximum input voltage for the NCV8130BMX180TCG?

The NCV8130BMX180TCG supports an absolute maximum input voltage (VIN) of 6 V, but its recommended operating range is up to 5.5 V. Operation above 5.5 V risks exceeding safe operating area limits and may compromise reliability or trigger overvoltage protection mechanisms not explicitly specified in the datasheet.

Does the NCV8130BMX180TCG include active output discharge?

No, the NCV8130BMX180TCG does not include active output discharge. This feature is exclusive to the "A" variant (e.g., NCV8130AMX180TCG). The "B" suffix confirms non-active discharge configuration, meaning the output relies on external pull-down or load leakage to discharge when disabled.

What is the minimum required VBIAS voltage for the NCV8130BMX180TCG at 1.80 V output?

The minimum required VBIAS voltage for the NCV8130BMX180TCG is the greater of 2.4 V or (VOUT + 1.35 V), which calculates to 3.15 V. Therefore, VBIAS must be ≥3.15 V to ensure proper internal circuit operation and avoid UVLO shutdown.

Can the NCV8130BMX180TCG operate with a 1.3 V input voltage?

No - the NCV8130BMX180TCG cannot regulate 1.80 V output from a 1.3 V input. With a 175 mV maximum dropout at 300 mA, the minimum valid VIN is 1.975 V. At 1.3 V input, the device enters dropout and cannot maintain regulation; output collapses toward VIN minus losses.

Is the NCV8130BMX180TCG pin-compatible with other variants in the NCV8130 family?

Yes - all NCV8130 variants, including NCV8130BMX180TCG, share identical XDFN6 1.2 mm × 1.2 mm package (Case 711AT) and pinout. Voltage, bias configuration, and active discharge options are implemented internally; no PCB layout change is needed when substituting within the same suffix group (e.g., BMXxxxTCG).