onsemi NCV8752ASN33T1G

Overview

NCV8752ASN33T1G from onsemi is an automotive-grade 200 mA ultra-low-noise, ultra-low-quiescent-current LDO regulator in XDFN-6 (1.5 × 1.5 mm) package, delivering fixed 3.3 V output with ±2% accuracy, 130 mV typical dropout at 200 mA, 11.5 µV_RMS noise (100 Hz–100 kHz), and 68 dB PSRR at 1 kHz - optimized for RF-sensitive power rails in satellite radio receivers, rear-view cameras, and GPS modules.

For engineers reviewing the NCV8752ASN33T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, active output discharge, Power Good open-drain flag with 92–96% V_OUT threshold hysteresis, and stable operation with only a 1 µF ceramic output capacitor.

Technical Context

The NCV8752ASN33T1G employs a PMOS pass transistor architecture enabling reverse-current blocking and low dropout performance. Its Auto Low-Power Mode reduces quiescent current to 12 µA at no load while maintaining regulation, and internal soft-start limits inrush current during enable transitions.

It integrates thermal shutdown (160°C trip, 20°C hysteresis), output current limiting (400 mA typ.), undervoltage lockout (1.2–1.9 V), and a dedicated open-drain Power Good (PG) output that asserts when V_OUT reaches 92% of nominal and de-asserts at 90%, supporting system-level power sequencing and fault monitoring.

Key Specifications

Pinout & Package

NCV8752ASN33T1G is housed in a thermally enhanced XDFN-6 package (1.5 × 1.5 mm, 0.5 mm height, Case 711AE), with wettable flanks for automated optical inspection. The exposed thermal pad is electrically connected to GND and must be soldered to a PCB copper plane for optimal thermal performance (R_JA = 149°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7A0533PDBVR and NCP114AMX33TBG, the NCV8752ASN33T1G uniquely combines automotive qualification, ultra-low noise, integrated Power Good, and active discharge - making it the only option among the three suitable for RF-critical, safety-aware automotive vision and navigation subsystems.

Availability

NCV8752ASN33T1G is available at Aetrix Electronics and suitable for satellite radio receivers, rear-view camera modules, and GPS navigation systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for NCV8752ASN33T1G 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 NCV8752 series belongs to onsemi's automotive-qualified power management portfolio, designed specifically for noise-sensitive, battery-powered ADAS and infotainment subsystems demanding ultra-low IQ, high PSRR, and functional safety features.

FAQ

What is the maximum input voltage rating for the NCV8752ASN33T1G?

The NCV8752ASN33T1G has an absolute maximum input voltage rating of 6 V. Operation above 5.5 V is not recommended per specifications, and sustained exposure beyond 6 V may cause permanent damage. The device is characterized for reliable operation from 2.0 V to 5.5 V, with UVLO engaging between 1.2 V and 1.9 V to prevent unstable startup.

Does the NCV8752ASN33T1G require an external noise-bypass capacitor?

No, the NCV8752ASN33T1G does not require an external noise-bypass capacitor to achieve its specified 11.5 µV_RMS noise performance. Its internal design and ultra-low-noise bandgap reference eliminate the need for additional capacitors - a key differentiator versus conventional LDOs that mandate 10 nF–100 nF bypass caps for noise reduction.

How does the Power Good (PG) output behave during power-up and power-down of the NCV8752ASN33T1G?

During power-up, the PG output remains low until V_OUT rises to ≥92% of 3.3 V (≥3.036 V), then goes high-impedance (open-drain high). During power-down, PG pulls low when V_OUT falls below 90% of 3.3 V (≤2.97 V). This 2% hysteresis prevents chatter near the threshold and ensures clean reset signaling for downstream logic in the NCV8752ASN33T1G application.

Can the NCV8752ASN33T1G be used with a 1 µF output capacitor, and what are the ESR constraints?

Yes, the NCV8752ASN33T1G is explicitly designed to be stable with a minimum 1 µF ceramic output capacitor. The datasheet specifies no minimum ESR requirement, but the maximum allowable ESR is 700 mΩ. Tantalum capacitors are discouraged due to their high and temperature-dependent ESR, which risks instability - ceramic X5R/X7R types are strongly recommended for the NCV8752ASN33T1G.

Is the NCV8752ASN33T1G pin-compatible with other variants in the NCV8752 family?

Yes, all NCV8752 variants - including NCV8752ASN33T1G (3.3 V), NCV8752ASN18T1G (1.8 V), and NCV8752ASN08T1G (0.8 V) - share identical XDFN-6 pinout, package dimensions, and thermal pad layout. This allows drop-in voltage-option replacement without PCB redesign, provided the EN, PG, and thermal management interfaces remain consistent across the NCV8752ASN33T1G application.