onsemi NCP707BMX330TCG

Overview

NCP707BMX330TCG from onsemi is a 200 mA low-dropout (LDO) voltage regulator with fixed 3.3 V output, optimized for battery-powered portable electronics. It delivers ±2% output accuracy across load, line, and temperature, features 100 mV typical dropout at 200 mA, 22 µV_RMS output noise (100 Hz–100 kHz), and ultra-low 25 µA quiescent current at no-load - enabling extended runtime in space-constrained, noise-sensitive applications like GPS modules and Bluetooth handsets.

For engineers reviewing the NCP707BMX330TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its XDFN-4 1.0×1.0 mm package, EN-controlled enable/disable functionality, stability with 1 µF ceramic output capacitor, and thermal shutdown/current limit protection - all critical for compact, reliable power management in portable medical devices and wireless LAN systems.

Technical Context

The NCP707BMX330TCG employs a PMOS pass transistor architecture enabling true reverse-current blocking and low dropout performance. Its adaptive quiescent current circuitry dynamically reduces ground current to 25 µA at zero load while maintaining regulation, and integrates internal soft-start to prevent output overshoot during turn-on.

It features an enable input with 0.9 V high-threshold and 0.4 V low-threshold, hysteresis, and deglitching to reject noise; shutdown current is as low as 0.01 µA. The device achieves 70 dB PSRR at 1 kHz and remains stable with output capacitors as small as 100 nF (ESR < 700 mΩ), supporting high-frequency transient response in RF-sensitive designs.

Key Specifications

Pinout & Package

XDFN-4 1.0 × 1.0 mm package with exposed thermal pad (EPAD); RoHS-compliant, Pb-free, halogen-free/BFR-free construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700T-3302E/TT and TPL7407LDR, the NCP707BMX330TCG uniquely balances ultra-low IQ, low dropout, low noise, and integrated EN control in a 1.0×1.0 mm footprint - making it optimal for next-generation portable medical and wireless edge devices where all four parameters are simultaneously critical.

Availability

NCP707BMX330TCG is available at Aetrix Electronics and suitable for GPS module power supply, Bluetooth audio transceiver, and portable ECG sensor applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for NCP707BMX330TCG 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, and IoT applications.

The NCP707 series is designed specifically for ultra-low-power, noise-sensitive portable electronics - emphasizing minimal quiescent current, small form factor, and robust protection in battery-constrained environments.

FAQ

What is the maximum input voltage rating for the NCP707BMX330TCG?

The NCP707BMX330TCG has an absolute maximum input voltage of 6 V, with recommended operating range from 1.8 V to 5.5 V. Exceeding 6 V risks permanent damage. For reliable 3.3 V output regulation, VIN must remain ≥3.4 V (3.3 V + 100 mV dropout) under 200 mA load; operation below this threshold causes dropout and unregulated output.

Does the NCP707BMX330TCG include active output discharge?

No, the NCP707BMX330TCG does not include active output discharge. Only NCP707A and NCP707C variants (e.g., NCP707AMX330TCG) feature this function. The "B" suffix indicates standard enable/disable operation without output pull-down; when disabled, the output floats and discharges only through external load or parasitic paths.

Can the NCP707BMX330TCG operate stably with a 100 nF output capacitor?

Yes, the NCP707BMX330TCG is specified to remain stable with output capacitance as low as 100 nF (ceramic, ESR < 700 mΩ), though 1 µF is recommended for optimal transient response and PSRR. Using 100 nF meets minimum stability requirements but may reduce load-step immunity and high-frequency noise rejection compared to 1 µF.

What is the thermal resistance (θ_JA) of the NCP707BMX330TCG in its XDFN-4 package?

The NCP707BMX330TCG has a typical junction-to-air thermal resistance (θ_JA) of 250°C/W when mounted on a 2 oz FR4 PCB with 100 mm² copper area. Performance improves significantly with larger copper pours or thermal vias under the EPAD; θ_JA drops to ~120°C/W with 400 mm² copper, enabling higher continuous power dissipation.

How does the enable pin behavior differ between NCP707BMX330TCG and other NCP707 variants?

The NCP707BMX330TCG uses the same EN pin interface as all NCP707 variants: logic-high (>0.9 V) enables regulation, logic-low (<0.4 V) disables output and reduces IN current to 0.01 µA. Unlike A/C versions, the "B" variant lacks active discharge, so the output remains floating (not pulled to GND) when disabled - requiring external discharge if fast VOUT decay is needed.