onsemi NCP707AMX300TCG

Overview

NCP707AMX300TCG from onsemi is a 200 mA low-dropout (LDO) voltage regulator with fixed 3.0 V output, optimized for battery-powered portable electronics. It delivers ±2% output accuracy over load/line/temperature, achieves 111 mV typical dropout at 200 mA, and features 22 µV_RMS output noise (100 Hz–100 kHz) and 70 dB PSRR at 1 kHz - enabling stable power for noise-sensitive RF and analog circuits in space-constrained designs.

For engineers reviewing the NCP707AMX300TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its 25 µA quiescent current at no-load, active output discharge (1.2 kΩ), thermal shutdown (160°C), and compatibility with 1 µF ceramic output capacitors in the XDFN4 1.0 × 1.0 mm package.

Technical Context

The NCP707AMX300TCG employs a PMOS pass transistor architecture with adaptive quiescent current control, enabling ultra-low IQ across input voltages (1.8–5.5 V) and temperatures (−40°C to +125°C). Its internal soft-start prevents output overshoot during enable, while the EN pin provides precise logic-level ON/OFF control with 0.9 V high-threshold and 0.4 V low-threshold.

It integrates active output discharge (exclusive to "A" and "C" suffix variants), current limiting (typ. 379 mA), and thermal shutdown with 20°C hysteresis. Stability is guaranteed with ≥1 µF ceramic C_OUT and ESR < 700 mΩ - eliminating need for tantalum or electrolytic capacitors.

Key Specifications

Pinout & Package

Package: XDFN4 1.0 × 1.0 mm, 4-pin, exposed pad (EPAD) for thermal dissipation. RoHS-compliant, Pb-free, halogen-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700T-3002E/TT and TPL7407LDR, the NCP707AMX300TCG uniquely combines 3.0 V precision, active output discharge, and XDFN4 miniaturization - making it optimal for compact, multi-rail portable systems requiring controlled power-down sequencing and ultra-low noise.

Availability

NCP707AMX300TCG is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth LE modules, industrial sensor nodes, and smartphone camera modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for NCP707AMX300TCG 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The NCP707AMX300TCG belongs to onsemi's precision low-noise LDO family, engineered specifically for battery-operated portable electronics where ultra-low quiescent current, small footprint, and clean power delivery are critical design constraints.

FAQ

What is the dropout voltage of the NCP707AMX300TCG at full 200 mA load?

The NCP707AMX300TCG has a typical dropout voltage of 111 mV at 200 mA output current and 3.0 V nominal output. This value is measured under standard conditions (T_J = +25°C, V_IN = V_OUT(NOM) + 0.5 V), and maximum dropout is specified as 165 mV across −40°C to +125°C. This low dropout enables efficient operation from single-cell lithium batteries down to 3.11 V.

Does the NCP707AMX300TCG include active output discharge, and how does it function?

Yes, the NCP707AMX300TCG includes active output discharge. When the EN pin is driven below 0.4 V, the internal discharge transistor activates, pulling the OUT pin to GND through a 1.2 kΩ resistor. This feature ensures rapid, controlled discharge of output capacitance during shutdown - critical for reliable power sequencing in multi-voltage-rail systems. The NCP707AMX300TCG implements this function as part of its "A" suffix variant specification.

What output capacitor is required for stable operation of the NCP707AMX300TCG?

The NCP707AMX300TCG is stable with a minimum 1.0 µF ceramic capacitor (X5R or X7R dielectric) on the output. The datasheet confirms stability down to 100 nF, but 1.0 µF is the recommended minimum for full parametric performance across temperature and load. ESR must be less than 700 mΩ; tantalum capacitors are not recommended due to high and temperature-variable ESR. The NCP707AMX300TCG does not require specific ESR tuning.

What is the quiescent current of the NCP707AMX300TCG at no-load, and how does it vary with input voltage?

The NCP707AMX300TCG draws a typical quiescent current of 25 µA at no-load (I_OUT = 0 mA) and +25°C. This value remains stable across its 1.8–5.5 V input range, as confirmed by Figure 12 in the datasheet. At −40°C and +125°C, IQ stays within 25–35 µA. This adaptive IQ architecture ensures minimal battery drain in standby - a key advantage of the NCP707AMX300TCG in always-on portable applications.

Can the NCP707AMX300TCG be used with a 1.8 V logic enable signal?

Yes, the NCP707AMX300TCG is fully compatible with 1.8 V GPIOs. Its EN pin has a guaranteed high-threshold of 0.9 V and low-threshold of 0.4 V, providing >0.9 V noise margin when driven by a 1.8 V logic high. The internal EN pull-down (180 nA typ.) ensures default-off behavior when left floating. No external level-shifter is needed - simplifying interface design in mixed-voltage systems using the NCP707AMX300TCG.