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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

onsemi NCP562SQ27T1G

Name: NCP562SQ27T1G
Brand: onsemi
SKU: NCP562SQ27T1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCP562SQ27T1G

Manufacturer:: onsemi

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: SC-82A, SOT-343

Datasheet:: NCP562SQ27T1G.pdf

Description:: IC REG LINEAR 2.7V 80MA SC82AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NCP562SQ27T1G from onsemi is a fixed-output, low-dropout linear regulator (LDO) designed for battery-powered portable electronics. It delivers 2.7 V output at up to 80 mA with ultra-low 2.5 µA quiescent current, 2.0% output voltage accuracy, and dropout voltage of 230 mV at 80 mA - enabling extended runtime in handheld instruments and camcorders.

For engineers reviewing the NCP562SQ27T1G datasheet, pinout, applications, or equivalent options, key selection criteria include enable-controlled ON/OFF functionality, SC82-AB package compatibility, −40 °C to +85 °C operating range, and support for 0.1 µF ceramic output capacitors without stability concerns.

Technical Context

The NCP562SQ27T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection. Its enable input allows system-level power sequencing, and it operates with no minimum load requirement.

Designed for low-noise, low-power operation, it achieves 100 µV_RMS output noise (100 Hz–100 kHz) and maintains regulation across input voltages from 3.7 V to 6.0 V (V_IN ≥ V_OUT + 1.0 V typical), with line regulation ≤20 mV and load regulation ≤40 mV.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	2.7 V ±2.0% - tightly regulated supply for 2.7 V logic or analog rails
Max Output Current	80 mA - sufficient for microcontrollers, sensors, and RF front-ends in portable devices
Quiescent Current	2.5 µA typical - enables multi-year battery life in always-on monitoring applications
Dropout Voltage	230 mV at 80 mA - supports operation down to 2.93 V input while maintaining 2.7 V output
Operating Temp	−40 °C to +85 °C - suitable for consumer and industrial ambient environments
Input Voltage Range	Up to 6.0 V - compatible with single-cell Li-ion (4.2 V max) and two-cell alkaline (3.2 V fresh)
Enable Threshold	V_TH(HI) = 1.3 V, V_TH(LO) = 0.3 V - TTL/CMOS-compatible control with hysteresis-free switching

Pinout & Package

The NCP562SQ27T1G is housed in the SC82-AB (Case 419C) surface-mount package - a 4-pin, 2.2 mm × 1.35 mm × 0.95 mm micro-miniature outline with exposed pad for thermal relief.

Pin/Terminal	Circuit Role	Design Meaning
1	GND	Power ground reference; must be low-impedance connection to PCB ground plane
2	Vin	Input supply pin; accepts 3.7 V to 6.0 V; requires local 1.0 µF decoupling capacitor
3	Vout	Regulated 2.7 V output; stable with ≥0.1 µF ceramic capacitor; no ESR constraints
4	Enable	Active-high digital control; pulls low to disable output and reduce IQ to 0.1 µA; tie to Vin if unused

Key Features

Feature	Design Value
Ultra-low quiescent current	2.5 µA typical - extends battery life in sleep-mode IoT endpoints and wearables
Enable-controlled shutdown	Reduces ground current to 0.1 µA - enables precise system-level power gating
Stable with 0.1 µF ceramic output cap	Eliminates need for tantalum or high-ESR capacitors - reduces BOM cost and board space
Thermal and current limiting	Internal protection activates at ~160 °C junction temp and >150 mA short-circuit - prevents damage during fault conditions
Pb-free, RoHS-compliant	Meets global environmental regulations; SC82-AB package marked with "G" for Pb-free identification

Applications

Portable Medical Sensors	Wireless Remote Controls
Use Scenario: Battery-powered pulse oximeter with optical sensor and BLE radio operating intermittently for 2+ years on CR2032. IC Role / Device Role / Timing Role: Primary 2.7 V supply for analog front-end and MCU core, enabled only during measurement cycles. Use Value: 2.5 µA quiescent current minimizes standby drain; 230 mV dropout ensures full battery utilization down to 2.93 V.	Use Scenario: Sub-GHz remote control using AA batteries and low-power transceiver IC requiring clean 2.7 V rail. IC Role / Device Role / Timing Role: Regulated power source for transceiver and microcontroller; enabled synchronously with button press. Use Value: Enable pin eliminates leakage path; 100 µV_RMS noise prevents RF desensitization during transmission.
Handheld Test Meters	Digital Camcorder Audio Circuits
Use Scenario: Pocket-sized multimeter with LCD, ADC, and auto-ranging circuitry powered by two AAA cells. IC Role / Device Role / Timing Role: Precision 2.7 V reference supply for 16-bit SAR ADC and display driver. Use Value: 2.0% output accuracy and ±100 ppm/°C tempco ensure measurement repeatability across temperature.	Use Scenario: Low-noise microphone preamp and audio codec section in compact camcorder design. IC Role / Device Role / Timing Role: Dedicated low-noise 2.7 V bias rail for analog audio signal chain. Use Value: 100 µV_RMS integrated noise and absence of switching artifacts preserve SNR in sensitive audio paths.

Portable Medical Sensors

Wireless Remote Controls

Use Scenario: Battery-powered pulse oximeter with optical sensor and BLE radio operating intermittently for 2+ years on CR2032.

IC Role / Device Role / Timing Role: Primary 2.7 V supply for analog front-end and MCU core, enabled only during measurement cycles.

Use Value: 2.5 µA quiescent current minimizes standby drain; 230 mV dropout ensures full battery utilization down to 2.93 V.

Use Scenario: Sub-GHz remote control using AA batteries and low-power transceiver IC requiring clean 2.7 V rail.

IC Role / Device Role / Timing Role: Regulated power source for transceiver and microcontroller; enabled synchronously with button press.

Use Value: Enable pin eliminates leakage path; 100 µV_RMS noise prevents RF desensitization during transmission.

Handheld Test Meters

Digital Camcorder Audio Circuits

Use Scenario: Pocket-sized multimeter with LCD, ADC, and auto-ranging circuitry powered by two AAA cells.

IC Role / Device Role / Timing Role: Precision 2.7 V reference supply for 16-bit SAR ADC and display driver.

Use Value: 2.0% output accuracy and ±100 ppm/°C tempco ensure measurement repeatability across temperature.

Use Scenario: Low-noise microphone preamp and audio codec section in compact camcorder design.

IC Role / Device Role / Timing Role: Dedicated low-noise 2.7 V bias rail for analog audio signal chain.

Use Value: 100 µV_RMS integrated noise and absence of switching artifacts preserve SNR in sensitive audio paths.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700T-2702E/TT	250 mV dropout at 250 mA; 1.6 µA IQ; no enable pin; SOT-23-3 package	Lacks enable control; higher max current but larger footprint; no thermal shutdown	Select when enable function is unnecessary and higher output current is required with minimal IQ trade-off
TPS70627DBVR	220 mV dropout at 150 mA; 1.7 µA IQ; active-low enable; SOT-23-5 package	Active-low enable logic; 150 mA rating; tighter 1% initial accuracy; higher cost	Choose for systems needing active-low control signaling or tighter voltage tolerance in higher-volume production

Compared with MCP1700T-2702E/TT and TPS70627DBVR, the NCP562SQ27T1G uniquely combines enable functionality, 2.0% accuracy, and SC82-AB's ultra-small footprint - making it optimal for space-constrained, battery-gated portable designs where precise 2.7 V regulation and minimal standby drain are critical.

Availability

NCP562SQ27T1G is available at Aetrix Electronics and suitable for portable medical sensors, wireless remote controls, handheld test meters, and digital camcorder audio circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for NCP562SQ27T1G 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, medical, and IoT applications.

The NCP562SQ27T1G belongs to onsemi's NCP562 series of ultra-low-I_Q LDOs - engineered specifically for battery-powered portable equipment where extended runtime and small form factor are essential design constraints.

FAQ

What is the maximum input voltage rating for the NCP562SQ27T1G?

The NCP562SQ27T1G has an absolute maximum input voltage of 6.0 V. Operation above this level risks permanent damage. For reliable regulation, Vin should be maintained between 3.7 V (2.7 V + 1.0 V headroom) and 6.0 V. The device includes internal protection against overvoltage stress on the Vin pin, but sustained operation beyond 6.0 V is not supported per the datasheet maximum ratings table.

Does the NCP562SQ27T1G require an external output capacitor, and what value is recommended?

Yes, the NCP562SQ27T1G requires an external output capacitor for stability. The minimum recommended value is 0.1 µF ceramic; larger values (e.g., 1.0 µF) improve load transient response and noise rejection. Unlike many LDOs, it imposes no ESR requirements - enabling use of low-cost, low-ESR X5R/X7R ceramics. The NCP562SQ27T1G remains stable across capacitor ESR from a few milliohms up to 10 Ω.

How does the enable pin function on the NCP562SQ27T1G, and what happens when it is left unconnected?

The enable pin on the NCP562SQ27T1G is active-high: pulling it ≥1.3 V turns the regulator on; pulling it ≤0.3 V disables output and reduces quiescent current to 0.1 µA. If left floating, the NCP562SQ27T1G may behave unpredictably due to noise coupling. The datasheet explicitly states that unused enable pins must be tied to Vin - not left open - to guarantee reliable operation of the NCP562SQ27T1G.

What is the dropout voltage specification for the NCP562SQ27T1G at full load and across temperature?

The dropout voltage for the NCP562SQ27T1G is specified as 230 mV at 80 mA load and −40 °C to +85 °C ambient temperature, measured when V_OUT drops 3.0% below nominal (i.e., to 2.619 V). This value is confirmed in the Electrical Characteristics table under "Dropout Voltage" for the 2.7 V variant. At room temperature and light loads, dropout can be as low as 190 mV.

Is the NCP562SQ27T1G suitable for automotive applications, and what qualification does it hold?

No, the NCP562SQ27T1G is not qualified for automotive use. It is rated for −40 °C to +85 °C operation and carries no AEC-Q100 qualification. For automotive applications, onsemi offers the NCV562SQ27T1G variant - which shares identical electrical specs but includes AEC-Q100 qualification, PPAP capability, and unique site/control change requirements. The NCP562SQ27T1G is intended for consumer and industrial portable equipment only.

NCP562SQ27T1G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: SC-82A, SOT-343

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 6V

Voltage - Output (Min/Fixed):: 2.7V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.4V @ 80mA

Current - Output:: 80mA

Current - Quiescent (Iq):: 1 µA

Current - Supply (Max):: 6 µA

PSRR:: -

Control Features:: Enable

Protection Features:: Over Current, Over Temperature

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-82AB

NCP562SQ27T1G FAQ

1.How can I place an order for NCP562SQ27T1G through Aetrix?

Please submit a Request for Quotation (RFQ) for NCP562SQ27T1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for NCP562SQ27T1G reliable?

The price and inventory of NCP562SQ27T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP562SQ27T1G is usually 5 days.

3.What payment methods are accepted for NCP562SQ27T1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP562SQ27T1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCP562SQ27T1G?

NCP562SQ27T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCP562SQ27T1G order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for NCP562SQ27T1G?

For technical support, including NCP562SQ27T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP562SQ27T1G requirements.

6.How does Aetrix verify that NCP562SQ27T1G is sourced from the original manufacturer or authorized distributors?

All NCP562SQ27T1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NCP562SQ27T1G meets industry standards.

7.What is the process for return or replacement of NCP562SQ27T1G?

All NCP562SQ27T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP562SQ27T1G, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The NCP562SQ27T1G part is unused and in its original packaging.

Return procedure for NCP562SQ27T1G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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