onsemi NCV8133BMX100TCG

Overview

NCV8133BMX100TCG from onsemi is a fixed-output 1.0 V, 500 mA very low dropout (VLDO) CMOS voltage regulator with dual-rail NMOS pass transistor architecture, ±1.5% output accuracy over −40°C to +125°C, 140 mV typical dropout at full load, and ultra-low 80 µA bias supply current - designed for automotive point-of-load regulation in FPGA, DSP, and camera power domains.

For engineers reviewing the NCV8133BMX100TCG datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal behavior, enable-controlled sequencing, and AEC-Q100 Grade 1 compliance context essential for noise-sensitive, space-constrained automotive and industrial designs.

Technical Context

The NCV8133BMX100TCG implements a dual-input architecture: VIN supplies the power path while VBIAS (2.4–5.5 V) powers internal control circuitry independently, decoupling regulation stability from input rail noise. Its NMOS pass transistor enables stable operation with only 2.2 µF ceramic output capacitance and eliminates capacitor ESR dependency.

Dropout is defined across two domains: VIN–VOUT (140 mV typ. @ 500 mA) and VBIAS–VOUT (1.1 V typ. @ 500 mA), both characterized under full temperature range. Thermal shutdown activates at 160°C junction temperature with 20°C hysteresis, and EN pin logic-level control includes built-in hysteresis for robust ON/OFF transitions.

Key Specifications

Pinout & Package

XDFN6 1.2 mm × 1.2 mm package (Case 711AT) with exposed thermal pad soldered to PCB ground plane for 170°C/W junction-to-air thermal resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV73310PDBVR and NCP1117ST10T3G, the NCV8133BMX100TCG uniquely combines dual-rail architecture, AEC-Q100 Grade 1 qualification, 140 mV dropout at 500 mA, and 40 µV_RMS noise - making it the only option validated for automotive camera and radar point-of-load applications demanding simultaneous low noise, low dropout, and extended temperature operation.

Availability

NCV8133BMX100TCG is available at Aetrix Electronics and suitable for automotive camera modules, FPGA power supplies, and ADAS radar processors requiring stable component supply with full AEC-Q100 documentation and traceable lot history.

Supply support for NCV8133BMX100TCG 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The NCV8133BMX100TCG belongs to onsemi's automotive-qualified VLDO regulator product line, engineered specifically for noise-sensitive, space-constrained point-of-load regulation in ADAS, infotainment, and body electronics.

FAQ

What is the minimum required VBIAS voltage for reliable operation of the NCV8133BMX100TCG?

The NCV8133BMX100TCG requires VBIAS ≥ 2.4 V and ≥ (VOUT + 1.4 V), i.e., ≥ 2.4 V minimum. Since its fixed output is 1.00 V, VBIAS must be ≥ 2.4 V - and per datasheet recommended conditions, ≥ 2.7 V ensures full specification compliance across temperature. Operation below 2.4 V risks UVLO activation and regulator disable.

Does the NCV8133BMX100TCG include active output discharge functionality?

No, the NCV8133BMX100TCG does not include active output discharge. That feature is exclusive to NCV8133A-series variants (e.g., NCV8133AMX100TCG). The "B" suffix in NCV8133BMX100TCG denotes the non-discharge version, confirmed by the absence of discharge-related parameters in its Electrical Characteristics table and block diagram footnote.

Can the NCV8133BMX100TCG operate with an input voltage lower than its 1.0 V output?

Yes - the NCV8133BMX100TCG supports VIN as low as 0.8 V, but regulation is only maintained when VIN ≥ (VOUT + VDO). With 140 mV typical dropout at 500 mA, it regulates down to VIN = 1.14 V. Below that, output collapses; however, the 0.8 V minimum VIN rating allows safe handling of brown-out conditions without damage.

What is the thermal resistance (R_JA) of the NCV8133BMX100TCG in its XDFN6 package?

The NCV8133BMX100TCG in XDFN6 (Case 711AT) has a junction-to-air thermal resistance (R_JA) of 170°C/W, measured with the exposed thermal pad soldered to a PCB ground plane. This value assumes standard JEDEC test board conditions; actual R_JA improves with larger copper pours and multiple thermal vias under the pad.

Is the NCV8133BMX100TCG compatible with ceramic output capacitors smaller than 2.2 µF?

No - the NCV8133BMX100TCG is specified and characterized for stability with 2.2 µF to 10 µF effective ceramic output capacitance. Using capacitors below 2.2 µF risks loop instability and oscillation, as confirmed by the "Stable with a 2.2 µF Ceramic Capacitor" feature and Application Information section stating effective capacitance must fall within that range.