onsemi NCP606MN30T2G

Overview

NCP606MN30T2G from onsemi is a 3.0 V fixed-output, 500 mA low-dropout (LDO) linear regulator with enable functionality, designed for space-constrained portable battery-powered systems. It delivers ±2% output voltage tolerance over all operating conditions, features 170 mV typical dropout at 500 mA, and achieves 62 dB PSRR at 120 Hz - enabling stable power delivery to noise-sensitive analog and RF circuitry in notebook computers and portable instrumentation.

For engineers reviewing the NCP606MN30T2G datasheet, pinout, applications, or equivalent options, key selection considerations include its DFN6 3×3.3 mm package with exposed thermal pad, active-high enable pin (Pin 3), ground current of 145 µA typical at full load, thermal shutdown at 175°C, and compatibility with low-ESR ceramic output capacitors as small as 1 µF.

Technical Context

The NCP606MN30T2G integrates a PMOS pass transistor with internal current limiting (675 mA) and thermal shutdown (175°C, 10°C hysteresis). Its feedback loop uses the SENSE/ADJ pin (Pin 5) tied directly to VOUT for fixed-voltage operation, ensuring tight regulation without external resistors.

Unlike the enable-less NCP605 variant, the NCP606MN30T2G implements an active-high enable input (Pin 3) with 0.9 V logic-high threshold and 0.4 V logic-low threshold, supporting controlled power sequencing. Its low 50 µV_RMS output noise (10 Hz–100 kHz) and high PSRR are achieved without requiring a bypass capacitor, simplifying layout in compact designs.

Key Specifications

Pinout & Package

Package: DFN6 3.0 × 3.3 mm, 0.95 mm pitch, exposed thermal pad (EPAD) connected to GND - provides low thermal resistance (R_θJA = 75°C/W) for high-power-density layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700T-3002E/MB and TLS850B2TEV50, the NCP606MN30T2G offers optimal balance of 500 mA drive, enable control, ultra-low noise, and compact DFN6 packaging - making it ideal for portable industrial and computing applications where size, efficiency, and noise performance are critical.

Availability

NCP606MN30T2G is available at Aetrix Electronics and suitable for notebook computers, portable instrumentation, and battery-powered medical sensors requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for NCP606MN30T2G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The NCP606MN30T2G belongs to onsemi's NCP605/NCP606 family of low-IG_ND, CMOS LDO regulators - engineered specifically for portable battery-powered devices demanding high PSRR, low noise, and minimal board space.

FAQ

What is the maximum input voltage for the NCP606MN30T2G?

The absolute maximum input voltage for the NCP606MN30T2G is 6.5 V, but the recommended operating range is 1.5 V to 6.0 V. For reliable 3.0 V output regulation at 500 mA, the minimum input must be at least V_OUT + V_DO = 3.18 V (typical), as specified in the Electrical Characteristics table. Exceeding 6.5 V risks permanent device damage per Absolute Maximum Ratings.

Does the NCP606MN30T2G require an external resistor divider for 3.0 V output?

No, the NCP606MN30T2G is a fixed-output variant - its 3.0 V regulation is implemented internally. The SENSE/ADJ pin (Pin 5) must be connected directly to the V_OUT capacitor terminal, not to a resistor network. External resistors are only required for adjustable versions (e.g., NCP606MNADJT2G) to set V_OUT between 1.25 V and 5.0 V.

How does the enable pin (EN) function on the NCP606MN30T2G?

The EN pin (Pin 3) is an active-high digital control input. When voltage exceeds 0.9 V (min), the regulator turns on with typical 12 µs enable time; when voltage drops below 0.4 V (max), it disables with 0.1 µA typical disable current. If unused, EN must be tied to V_IN to ensure continuous operation - floating the pin may cause erratic behavior.

Can the NCP606MN30T2G operate with a 1 µF ceramic output capacitor?

Yes - the NCP606MN30T2G is explicitly characterized and stabilized with 1 µF ceramic capacitors (e.g., Murata GRM219R71E105K), requiring no minimum ESR. Larger values (e.g., 10 µF) improve load transient response and noise rejection, but 1 µF meets all stability and specification requirements per the Applications Information section.

What thermal performance can be expected from the NCP606MN30T2G in a standard PCB layout?

When soldered on a 645 mm², 1 oz copper FR4 board, the NCP606MN30T2G achieves R_θJA = 75°C/W. At 500 mA load with 3.18 V input (180 mV dropout), power dissipation is ~90 mW, resulting in ~6.8°C junction-to-ambient rise above ambient - well within the −40°C to +125°C operating range. Thermal relief via the EPAD is essential for this performance.