onsemi NCV8130BMX110TCG

Overview

NCV8130BMX110TCG from onsemi is a 300 mA very low dropout (VLDO) CMOS voltage regulator with NMOS pass transistor and separate bias rail (VBIAS), delivering fixed 1.10 V output at ±1.5% accuracy over −40°C to +125°C, ultra-low 175 mV max 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 domains.

For engineers reviewing the NCV8130BMX110TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its dual-rail architecture (VIN/VBIAS), AEC-Q100 Grade 1 qualification, 80 µA typical bias current, logic-level enable control, and XDFN6 1.2 mm × 1.2 mm package optimized for space-constrained automotive PCBs.

Technical Context

The NCV8130BMX110TCG implements a dual-input NMOS-based VLDO architecture where VIN supplies the pass element and VBIAS powers internal control circuitry independently - enabling stable regulation even when VIN approaches VOUT, unlike PMOS LDOs. Its UVLO circuit monitors VBIAS with 1.6 V threshold and 0.2 V hysteresis.

It features monotonic startup, thermal shutdown at 160°C (releasing at 140°C), and no active discharge (as confirmed by "BMX" suffix and absence of RDISCH specification in Electrical Characteristics). The device operates across VIN = (VOUT + VDO) to 5.5 V and VBIAS = (VOUT + 1.35 V) ≥ 2.4 V to 5.5 V.

Key Specifications

Pinout & Package

XDFN6 1.2 mm × 1.2 mm package (Case 711AT) with exposed thermal pad soldered to ground plane for 170°C/W junction-to-air thermal resistance - optimized for high-density automotive PCBs with strict height and footprint constraints.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-rail LDO applications.

Compared with NCV8130AMX110TCG, the NCV8130BMX110TCG offers lower standby current and no discharge-induced noise, while versus TLD1113-11ES it delivers tighter accuracy, higher PSRR, and full AEC-Q100 Grade 1 support - making it the optimal choice for safety-critical automotive point-of-load regulation.

Availability

NCV8130BMX110TCG is available at Aetrix Electronics and suitable for automotive camera modules, ADAS domain controllers, and infotainment SoC interface rails requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for NCV8130BMX110TCG 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 supplier focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and intelligent edge applications.

The NCV8130 series belongs to onsemi's automotive-qualified power management portfolio, engineered specifically for low-noise, high-accuracy point-of-load regulation in safety-critical vehicle systems including ADAS, body electronics, and infotainment.

FAQ

What is the output voltage tolerance of the NCV8130BMX110TCG over temperature?

The NCV8130BMX110TCG guarantees ±1.5% output voltage accuracy across the full −40°C to +125°C junction temperature range, with tighter ±0.5% accuracy at 25°C. This is verified per the Electrical Characteristics table in the official datasheet and ensures reliable operation for 1.1 V logic interfaces under extreme automotive thermal conditions. The NCV8130BMX110TCG does not require external trimming or calibration to meet this spec.

Does the NCV8130BMX110TCG support active output discharge?

No, the NCV8130BMX110TCG does not include active output discharge functionality. The "B" in the part number denotes the non-active-discharge variant, confirmed by the absence of RDISCH parameter in its Electrical Characteristics table and the datasheet note stating active discharge is present only in "A"-suffix devices (e.g., NCV8130AMXyyyTCG). The NCV8130BMX110TCG relies on natural discharge through load and parasitic paths.

What is the minimum required VBIAS voltage for the NCV8130BMX110TCG at 1.10 V output?

The minimum required VBIAS voltage for the NCV8130BMX110TCG is (VOUT + 1.35 V) = 2.45 V, with an absolute minimum of 2.4 V per Recommended Operating Conditions. This ensures proper operation of internal control circuitry and UVLO monitoring. Applying VBIAS below 2.4 V risks undervoltage lockout and regulator disable - a critical constraint when designing auxiliary bias rails for the NCV8130BMX110TCG.

Can the NCV8130BMX110TCG operate with input voltage below 1.10 V?

No, the NCV8130BMX110TCG cannot regulate at VIN below its 1.10 V output due to its NMOS pass transistor architecture. The minimum VIN is defined by dropout: VIN ≥ (VOUT + VDO) = 1.10 V + 0.175 V = 1.275 V at 300 mA. Below this, the NCV8130BMX110TCG enters dropout and VOUT drops linearly with VIN - it is not designed for sub-VOUT operation like some charge-pump or buck-boost regulators.

Is the NCV8130BMX110TCG pin-compatible with other variants in the NCV8130 family?

Yes, all NCV8130 variants - including NCV8130BMX080TCG, NCV8130BMX100TCG, and NCV8130BMX110TCG - share identical XDFN6 pinout, package dimensions, and terminal assignments. The only differences are output voltage (laser-trimmed during test) and presence/absence of active discharge ("B" vs "A"). This allows drop-in replacement across voltage options without PCB redesign, provided VBIAS and VIN ranges remain compatible.