onsemi NCP562SQ15T1

Overview

NCP562SQ15T1 from onsemi is a fixed-output, low-dropout linear voltage regulator with 1.5 V output, 80 mA rated current, ultra-low 2.5 µA typical quiescent current, and enable control-designed for battery-powered handheld instruments requiring stable low-voltage supply under light-load conditions.

For engineers reviewing the NCP562SQ15T1 datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 80 mA (250 mV), ±2.0% output accuracy, −40 °C to +85 °C operating range, SC82-AB package compatibility, and enable threshold validation for system-level power sequencing.

Technical Context

The NCP562SQ15T1 integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection circuits. It operates with input voltages from 1.8 V to 6.0 V and maintains regulation down to a 250 mV dropout at full 80 mA load and −40 °C to +85 °C ambient.

Unlike the NCP563 variant, the NCP562SQ15T1 includes an active-high enable pin (V_TH(en) = 1.3 V min, 0.3 V max) for precise ON/OFF control and supports ceramic output capacitors as low as 0.1 µF without ESR constraints-enabling compact, low-noise power delivery in space-constrained portable designs.

Key Specifications

Pinout & Package

The NCP562SQ15T1 is housed in the SC82-AB (Case 419C) surface-mount package: 1.8–2.2 mm × 1.15–1.35 mm × 0.8–1.1 mm, 4-pin, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700T-1502E/TT and TPS70615DBVR, the NCP562SQ15T1 uniquely balances 2.5 µA quiescent current, integrated enable, 250 mV dropout, and ultra-compact SC82-AB footprint-making it optimal for space- and battery-limited portable instrumentation where both efficiency and controllability are essential.

Availability

NCP562SQ15T1 is available at Aetrix Electronics and suitable for portable medical sensors, wearable health monitors, handheld test meters, and low-power industrial loggers requiring stable component supply with long-term lifecycle assurance.

Supply support for NCP562SQ15T1 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 medical markets.

The NCP562 series belongs to onsemi's ultra-low-I_Q LDO portfolio, engineered specifically for battery-powered portable instrumentation where extended runtime and precise low-voltage regulation are non-negotiable.

FAQ

What is the maximum input voltage rating for the NCP562SQ15T1?

The NCP562SQ15T1 has a maximum input voltage rating of 6.0 V, as specified in its Absolute Maximum Ratings table. Operation above this voltage risks permanent device damage. For reliable long-term use, design input rails to remain ≤5.5 V under worst-case conditions including ripple and transients, especially when paired with the 1.5 V output and 250 mV dropout margin.

Does the NCP562SQ15T1 require an external pull-up resistor on the Enable pin?

No, the NCP562SQ15T1 does not require an external pull-up resistor on the Enable pin. When enable functionality is unused, the datasheet explicitly states that the pin should be connected directly to Vin to guarantee operation. A pull-up resistor introduces unnecessary leakage and board area; direct connection ensures robust activation and avoids marginal threshold behavior near V_TH(en) limits.

Can the NCP562SQ15T1 operate with only a 0.1 µF output capacitor?

Yes, the NCP562SQ15T1 is fully stable with a minimum 0.1 µF ceramic output capacitor, as confirmed in the Applications Information section. This low-capacitance requirement reduces bill-of-materials cost and PCB area versus traditional LDOs needing ≥1 µF. Larger values (e.g., 1.0 µF) improve load transient response and noise rejection but are optional-not mandatory-for basic regulation.

What is the output voltage accuracy specification for the NCP562SQ15T1 over temperature and load?

The NCP562SQ15T1 guarantees ±2.0% output voltage accuracy over the full operating temperature range (−40 °C to +85 °C) and load current range (1 mA to 80 mA), per the Electrical Characteristics table. At 25 °C and 1 mA load, the typical output is 1.5 V, with min/max bounds of 1.455 V and 1.545 V-ensuring predictable performance in precision analog and digital subsystems without post-regulation trimming.

Is the NCP562SQ15T1 pin-compatible with the NCP563SQ15T1?

No, the NCP562SQ15T1 is not pin-compatible with the NCP563SQ15T1. While both share the SC82-AB package and identical pin 1–3 assignments (GND, Vin, Vout), the NCP562SQ15T1 uses Pin 4 as Enable, whereas the NCP563SQ15T1 designates Pin 4 as No Connect (N/C). Interchanging them without circuit modification will result in unintended shutdown or undefined behavior due to the floating Enable line on the NCP562SQ15T1.