onsemi NCV8752BSN33T1G

Overview

NCV8752BSN33T1G from onsemi is a 200 mA ultra-low-noise, ultra-low-quiescent-current LDO regulator with fixed 3.3 V output, 12 µA typical IQ, 11.5 µV_RMS noise (100 Hz–100 kHz), and 130 mV typical dropout at 200 mA - engineered for RF-sensitive automotive infotainment, satellite radio receivers, and rear-view camera power rails.

For engineers reviewing the NCV8752BSN33T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, Power Good open-drain flag with 92–96% V_OUT threshold hysteresis, active output discharge, and stability with only 1 µF ceramic output capacitor - critical for space-constrained, battery-powered automotive modules.

Technical Context

The NCV8752BSN33T1G integrates a PMOS pass transistor with adaptive ground current control to maintain 12 µA quiescent current across input voltages from 2.0 V to 5.5 V and load currents up to 200 mA. Its internal bandgap reference and error amplifier deliver ±2% output accuracy over load, line, and temperature (−40°C to +125°C).

It features an enable-controlled auto low-power mode, internal soft-start limiting inrush current, and a dedicated open-drain Power Good (PG) output that asserts when V_OUT reaches 92–96% of nominal and de-asserts at 90–94%, with programmable timeout delay (200 µs for NCV8752B variant) and fast reaction time (5 µs).

Key Specifications

Pinout & Package

NCV8752BSN33T1G is packaged in XDFN-6 (1.5 mm × 1.5 mm, 0.5 mm pitch, Case 711AE), optimized for thermal performance (R_JA = 149 °C/W) and space-constrained automotive PCBs. The exposed thermal pad must be soldered to a copper plane for effective heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NCV8752BSN33T1G, NCV8170ASN33T1G trades PG functionality and 200 mA drive for deeper sleep current, while TLD1130FXTMA1 adds watchdog and ASIL-B readiness at the cost of larger size and higher IQ - making NCV8752BSN33T1G the optimal balance of noise, efficiency, and automotive-grade features for RF-sensitive 3.3 V rails.

Availability

NCV8752BSN33T1G is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and electronic mirror control units requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.

Supply support for NCV8752BSN33T1G 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 - delivering high-reliability components with rigorous automotive qualification standards.

The NCV8752BSN33T1G belongs to onsemi's NCV automotive LDO family, designed specifically for noise-sensitive, always-on vehicle subsystems where ultra-low IQ, low noise, and AEC-Q100 compliance are mandatory.

FAQ

What is the maximum input voltage rating for the NCV8752BSN33T1G?

The NCV8752BSN33T1G has an absolute maximum input voltage rating of 6 V. Operation above this level risks permanent damage. For reliable continuous operation, the recommended input voltage range is 2.0 V to 5.5 V - ensuring compatibility with 3.3 V, 3.6 V, and 5 V automotive supply rails while maintaining 130 mV dropout margin at full 200 mA load.

Does the NCV8752BSN33T1G require an external noise-bypass capacitor?

No, the NCV8752BSN33T1G does not require an external noise-bypass capacitor to achieve its specified 11.5 µV_RMS noise performance (100 Hz–100 kHz). Its internal architecture and optimized reference design eliminate the need for additional capacitors - simplifying layout and reducing BOM count in RF-sensitive applications like satellite radio receivers and GPS modules.

How does the Power Good (PG) output behave during startup and shutdown of the NCV8752BSN33T1G?

The PG output of the NCV8752BSN33T1G is an open-drain signal that remains low until V_OUT rises to ≥92% of 3.3 V (≥3.036 V), then transitions high-impedance. It reasserts low when V_OUT falls ≤90% (≤2.97 V). For the NCV8752B variant, PG includes a 200 µs timeout delay and 5 µs reaction time - enabling precise sequencing with microcontrollers and FPGA configuration logic.

Is the NCV8752BSN33T1G compatible with 1 µF ceramic output capacitors?

Yes, the NCV8752BSN33T1G is fully stable with a minimum 1.0 µF X5R/X7R ceramic output capacitor - and remains stable down to 500 nF. This eliminates reliance on larger, higher-ESR tantalum or aluminum polymer capacitors. The device imposes no minimum ESR requirement but specifies a maximum ESR of 700 mΩ to ensure phase margin and transient stability across temperature and bias conditions.

What protection features are integrated into the NCV8752BSN33T1G?

The NCV8752BSN33T1G integrates thermal shutdown (trip at 160°C, reset at 140°C), output current limiting (400 mA typical), short-circuit protection (410 mA typical), undervoltage lockout (UVLO at 1.2–1.9 V), and reverse-current blocking via its PMOS pass transistor. These features ensure robust operation in automotive environments subject to load dumps, cold cranking, and intermittent shorts - without requiring external protection circuitry.