onsemi NCP707AMX310TCG

Overview

NCP707AMX310TCG from onsemi is a 200 mA low-dropout (LDO) regulator with fixed 3.1 V output, ultra-low 25 µA quiescent current, 22 µV_RMS output noise (100 Hz–100 kHz), and 100 mV typical dropout at 200 mA. It features active output discharge (1.2 kΩ), thermal shutdown, current limiting, and stable operation with only 1 µF ceramic output capacitance - ideal for space-constrained, battery-powered portable electronics requiring clean, precise voltage regulation.

For engineers reviewing the NCP707AMX310TCG datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, package details, real-world use cases, and validated alternative options - all grounded in the official onsemi NCP707/D Rev. 10 datasheet and ordering documentation.

Technical Context

The NCP707AMX310TCG employs a PMOS pass transistor architecture enabling true reverse-current blocking and ultra-low dropout performance. Its adaptive ground current circuitry dynamically reduces IQ to 25 µA at no-load while maintaining ±2% output accuracy across −40°C to +125°C, load (0–200 mA), and line (VIN = VOUT + 0.5 V to 5.5 V) variations.

It integrates an enable-controlled active discharge path (1.2 kΩ) activated during shutdown, a precision bandgap reference, internal soft-start to limit inrush current, and robust protection including thermal shutdown (160°C trip, 20°C hysteresis) and output short-circuit current limiting (typ. 379 mA). PSRR reaches 70 dB at 1 kHz, supporting noise-sensitive analog and RF subsystems.

Key Specifications

Pinout & Package

XDFN-4 1.0 mm × 1.0 mm, 0.4 mm pitch, exposed thermal pad (EPAD) - ultra-compact footprint optimized for high-density portable PCBs; EPAD must be soldered to GND plane for thermal performance (R_JA = 250°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700T-3102E/TT and XC6210B312MR-G, the NCP707AMX310TCG uniquely combines XDFN-4 miniaturization, active discharge, and 25 µA IQ - making it optimal for next-gen wearables and space-limited BLE designs where both size and controlled power-down are mandatory.

Availability

NCP707AMX310TCG is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth Low Energy modules, and portable medical diagnostics requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for NCP707AMX310TCG 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 (Nasdaq: ON) is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The NCP707 series is designed specifically for ultra-low-power, noise-sensitive portable electronics - emphasizing miniature packaging, dynamic IQ optimization, and integrated protection for battery-constrained systems.

FAQ

What is the output voltage tolerance of the NCP707AMX310TCG across temperature and load?

The NCP707AMX310TCG maintains ±2% output voltage accuracy over the full operating junction temperature range (−40°C to +125°C), across load currents from 0 mA to 200 mA, and input voltages from VOUT + 0.5 V to 5.5 V. This specification is guaranteed by design and characterization per the onsemi NCP707/D Rev. 10 datasheet, ensuring reliable regulation in demanding portable environments where the NCP707AMX310TCG is deployed.

Does the NCP707AMX310TCG support active output discharge, and how does it function?

Yes, the NCP707AMX310TCG includes active output discharge: when the EN pin voltage falls below 0.4 V, an internal 1.2 kΩ transistor pulls the OUT pin to GND, discharging external capacitance rapidly. This feature is confirmed in the "PIN FUNCTION DESCRIPTION" and "APPLICATIONS INFORMATION" sections of the official datasheet and distinguishes the 'A' version (NCP707AMX310TCG) from non-discharge variants. The NCP707AMX310TCG uses this to ensure safe, predictable power-down sequencing.

What minimum output capacitance is required for stability with the NCP707AMX310TCG?

The NCP707AMX310TCG is stable with a minimum 1.0 µF ceramic (X5R/X7R) output capacitor, as explicitly stated in the datasheet's "APPLICATIONS INFORMATION" and "ELECTRICAL CHARACTERISTICS" sections. While the absolute minimum effective capacitance is 100 nF, the 1.0 µF value provides adequate safety margin against DC bias, temperature, and tolerance variations - and is the recommended value used in all typical application schematics and test conditions for the NCP707AMX310TCG.

Can the NCP707AMX310TCG operate from a 1.8 V input supply?

No - the NCP707AMX310TCG requires VIN ≥ VOUT + 0.5 V for proper regulation, meaning its minimum valid input is 3.6 V (3.1 V + 0.5 V). Although the absolute maximum rating allows VIN down to 1.8 V, the device cannot regulate at that level. Operation below 3.6 V results in dropout mode with unregulated, input-dependent output. This constraint is defined in the "ELECTRICAL CHARACTERISTICS" table and Figure 15–20 of the NCP707AMX310TCG datasheet.

What protection features are integrated into the NCP707AMX310TCG?

The NCP707AMX310TCG integrates thermal shutdown (trip at 160°C, 20°C hysteresis), output current limiting (379 mA typical), short-circuit protection (390 mA typical at VOUT = 0 V), and reverse-current blocking via its PMOS pass element. All protections are fully characterized and guaranteed across temperature and process corners per the onsemi NCP707/D Rev. 10 datasheet - ensuring robust operation in the NCP707AMX310TCG's target applications such as portable medical and industrial edge devices.