onsemi NCP130BMX100TCG

Overview

NCP130BMX100TCG from onsemi is a 300 mA very low dropout (VLDO) CMOS voltage regulator with NMOS pass transistor and separate bias rail (VBIAS), delivering 1.00 V fixed output at ±1.5% accuracy over −40°C to +85°C, 150 mV max dropout at 300 mA, and ultra-low 80 µA typical bias current - designed for noise-sensitive, space-constrained portable applications including smartphone I/O rails and camera sensor power.

For engineers reviewing the NCP130BMX100TCG datasheet, pinout, applications, or equivalent options, key selection considerations include its dual-rail architecture (VIN/VBIAS), absence of active output discharge (distinguishing it from NCP130A variants), XDFN6 1.2 mm × 1.2 mm package thermal performance, and compatibility with 1 µF ceramic output capacitors.

Technical Context

The NCP130BMX100TCG implements a dual-supply VLDO architecture where VIN supplies the pass element and VBIAS powers internal control circuitry - enabling stable regulation even when VIN approaches VOUT. Its NMOS pass transistor eliminates gate-drive dependency on VIN, allowing operation down to 0.8 V input while maintaining loop stability with minimal output capacitance.

Unlike PMOS LDOs, this topology decouples bias supply requirements from input rail constraints: VBIAS must be ≥2.4 V and ≥(VOUT + 1.35 V), but can be sourced independently (e.g., from a higher-voltage system rail). The device features integrated UVLO on VBIAS (1.6 V threshold with 0.2 V hysteresis), thermal shutdown at 160°C, and logic-level enable with 0.9 V high-threshold.

Key Specifications

Pinout & Package

XDFN6 package (Case 711AT), 1.2 mm × 1.2 mm × 0.37 mm, with exposed thermal pad soldered to ground plane for R_JA = 170°C/W. Pin 1 = OUT, Pin 2 = NC, Pin 3 = EN, Pin 4 = BIAS, Pin 5 = GND, Pin 6 = IN.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise, dual-rail LDO applications.

Compared with XC6210B102MR-G and AP7361-10SG-7, the NCP130BMX100TCG uniquely supports dual-rail operation with sub-150 mV dropout and integrated thermal protection - making it optimal for battery-fed systems requiring both ultra-low input voltage tolerance and robust fault handling.

Availability

NCP130BMX100TCG is available at Aetrix Electronics and suitable for smartphone I/O rails, camera sensor power, HDMI interface supplies, and wearable AFE circuits requiring stable component supply with guaranteed long-term manufacturability and RoHS-compliant packaging.

Supply support for NCP130BMX100TCG 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 NCP130 series targets portable electronics requiring ultra-low-noise, space-constrained power regulation - specifically engineered to replace legacy PMOS LDOs with NMOS-based dual-rail architecture for improved efficiency and stability.

FAQ

What is the output voltage tolerance of the NCP130BMX100TCG across temperature and load?

The NCP130BMX100TCG delivers 1.00 V output with ±1.5% accuracy over −40°C to +85°C junction temperature and 1 mA to 300 mA load current. At 25°C, output voltage accuracy tightens to ±0.5%. This specification is guaranteed under specified VBIAS (≥2.7 V or VOUT + 1.6 V) and VIN (≥VOUT + 0.3 V) conditions per the datasheet's Electrical Characteristics table. The NCP130BMX100TCG maintains this tolerance without external trimming or feedback components.

Does the NCP130BMX100TCG include active output discharge functionality?

No, the NCP130BMX100TCG does not include active output discharge. That feature is exclusive to the NCP130A variant family (e.g., NCP130AMX100TCG). The "B" suffix in NCP130BMX100TCG explicitly denotes non-active discharge - meaning the output remains floating when disabled via the EN pin. This behavior prevents unintended discharge of downstream capacitance, which may be desirable in systems where controlled power-down sequencing is required.

What is the minimum VBIAS voltage required for the NCP130BMX100TCG to regulate properly?

The NCP130BMX100TCG requires VBIAS ≥ (VOUT + 1.35 V) or 2.4 V, whichever is greater. For the 1.00 V output of the NCP130BMX100TCG, this means VBIAS must be ≥ 2.35 V - and the datasheet specifies a minimum of 2.4 V. Operation below this threshold triggers the internal undervoltage lockout (UVLO), disabling regulation regardless of EN state. VBIAS must also remain ≤ 5.5 V to avoid absolute maximum rating violation.

Can the NCP130BMX100TCG operate with an input voltage lower than its output voltage?

No, the NCP130BMX100TCG cannot regulate when VIN < VOUT. As a linear regulator, it requires VIN ≥ VOUT + V_DO, where V_DO is the dropout voltage. At 300 mA, V_DO is up to 150 mV - so minimum VIN is 1.15 V for the 1.00 V NCP130BMX100TCG. However, the device *can* operate with VIN < VBIAS (e.g., VIN = 1.2 V, VBIAS = 3.3 V), which is a key advantage of its dual-rail architecture over single-supply LDOs.

What package type and dimensions does the NCP130BMX100TCG use?

The NCP130BMX100TCG uses the XDFN6 package (Case 711AT), measuring 1.20 mm × 1.20 mm × 0.37 mm with 0.40 mm pitch. It features six terminals plus an exposed thermal pad on the bottom surface, which must be soldered to the PCB ground plane to achieve the specified thermal resistance of 170°C/W. The marking "HC" appears on the top surface, and the device is Pb-free, halogen-free, and RoHS compliant.