onsemi NCV8752AMX33TCG

Overview

NCV8752AMX33TCG from onsemi is a 200 mA ultra-low-noise, ultra-low-quiescent-current LDO regulator with fixed 3.3 V output, ±2% accuracy over load/line/temperature, 130 mV typical dropout at 200 mA, and 11.5 µV_RMS noise (100 Hz–100 kHz). It integrates Power Good (PG) open-drain output, active output discharge, thermal shutdown, and current limiting - designed for RF-sensitive automotive infotainment and precision sensor power rails.

For engineers reviewing the NCV8752AMX33TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, 12 µA quiescent current in auto low-power mode, stable operation with 1 µF ceramic output capacitor, and PG timing behavior (t_RD = 2 s, t_RR = 2 s for NCV8752A variant).

Technical Context

The NCV8752AMX33TCG employs a PMOS pass transistor architecture enabling reverse-current blocking and low dropout performance. Its internal bandgap reference and adaptive ground current circuitry enable ultra-low IQ operation without external bypass capacitors for noise suppression.

It features integrated EN logic with hysteresis (VEN_HI = 0.9 V, VEN_LO = 0.4 V), programmable PG threshold (92–96% V_OUT rising/falling), and thermal shutdown at 160°C with 20°C hysteresis. The device operates across −40°C to +125°C junction temperature and supports input voltages from 2.0 V to 5.5 V.

Key Specifications

Pinout & Package

NCV8752AMX33TCG is packaged in XDFN-6 (1.5 mm × 1.5 mm, 0.5 mm pitch, Case 711AE), optimized for space-constrained automotive PCBs. Thermal resistance R_JA = 149°C/W on 1 oz FR-4 with 645 mm² copper area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NCV8752AMX33TCG, NCV8774ADT33RKG offers higher current but sacrifices PG and discharge features, while TLE42744G V33 adds safety features at the cost of higher IQ and incompatible packaging - making NCV8752AMX33TCG optimal for compact, noise-sensitive, low-IQ automotive loads.

Availability

NCV8752AMX33TCG is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and electronic mirror control units requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.

Supply support for NCV8752AMX33TCG 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 leader focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications, with manufacturing and quality systems certified to IATF 16949.

The NCV8752AMX33TCG belongs to onsemi's automotive-grade LDO portfolio, engineered specifically for noise-sensitive RF and sensor power domains in vehicles - emphasizing ultra-low IQ, low noise, and robust thermal protection.

FAQ

What is the maximum input voltage rating for NCV8752AMX33TCG?

The absolute maximum input voltage for NCV8752AMX33TCG is 6 V. Operation above this level risks permanent damage. For reliable long-term use, the recommended operating input voltage range is 2.0 V to 5.5 V, which ensures proper regulation, thermal margin, and PSRR performance across temperature and load conditions. This range accommodates automotive battery variations including cold-crank dips and load-dump transients when paired with appropriate front-end protection.

Does NCV8752AMX33TCG require an external noise-bypass capacitor?

No, NCV8752AMX33TCG does not require an external noise-bypass capacitor. Its ultra-low 11.5 µV_RMS output noise (100 Hz–100 kHz) is achieved through internal design - including optimized bandgap and error amplifier topology - eliminating the need for additional capacitors typically used with conventional LDOs. This simplifies layout, reduces BOM count, and avoids ESR-related stability issues associated with external bypass networks.

How does the Power Good (PG) output behave during startup and shutdown of NCV8752AMX33TCG?

The PG output of NCV8752AMX33TCG is an open-drain signal that goes high-impedance when V_OUT reaches ≥92% of 3.3 V (≥3.036 V) and pulls low when V_OUT falls below 90% (≤2.97 V), with 2% hysteresis. For the NCV8752A variant (which NCV8752AMX33TCG belongs to), PG assertion delay (t_RD) is 2 s and reaction time (t_RR) is 2 s, providing deterministic sequencing for downstream MCUs or FPGAs without external timers.

Can NCV8752AMX33TCG be used with a 1 µF output capacitor?

Yes, NCV8752AMX33TCG is explicitly designed to be stable with a minimum 1 µF ceramic output capacitor (X5R/X7R), and it remains stable down to 500 nF under specified conditions. The device imposes no minimum ESR requirement but specifies a maximum ESR of 700 mΩ for C_OUT. Using 1 µF ceramic capacitors simplifies design, reduces footprint, and avoids the temperature-dependent ESR drift seen in tantalum alternatives.

Is NCV8752AMX33TCG pin-compatible with other variants in the NCV8752 family?

NCV8752AMX33TCG shares the same XDFN-6 package and pinout with all NCV8752 variants (e.g., NCV8752AMT33T, NCV8752BMT33T), including identical IN, PG, GND, EN, N/C, and OUT assignments. However, NCV8752A and NCV8752B differ in PG timing (t_RD/t_RR = 2 s vs. 200 s/5 s), so firmware-level timing assumptions must match the specific variant. Electrical and mechanical compatibility is maintained across the family.