My Inquiry
My Account
onsemi NCP662SQ25T1
- Part No.:
- NCP662SQ25T1
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP662SQ25T1.pdf
- Description:
- IC REG LINEAR 2.5V 100MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,484
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP662SQ25T1 from onsemi is a fixed-output, CMOS low-dropout linear regulator delivering 2.5 V at up to 100 mA with 2.5 µA typical quiescent current, ±2.0% output voltage accuracy, and 280 mV dropout (at 100 mA), designed for battery-powered portable electronics requiring ultra-low standby power.
For engineers reviewing the NCP662SQ25T1 datasheet, pinout, applications, or equivalent options, key selection criteria include its SC-82AB package footprint, enable-controlled ON/OFF functionality, −40 °C to +85 °C operating range, and compatibility with 0.1 µF ceramic output capacitors.
Technical Context
The NCP662SQ25T1 integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection circuits. Its enable input provides active-high logic control with 1.3 V turn-on and 0.5 V turn-off thresholds, allowing system-level power sequencing.
Designed for stability with minimal external components, it operates with input voltages from 2.8 V to 6.0 V and maintains regulation down to 280 mV input–output differential at full load. Output voltage noise is 100 µVRMS (100 Hz–100 kHz) at 3.0 V output - scaled proportionally for 2.5 V operation per family characterization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±2.0% (ensures stable MCU core or sensor bias under load and temperature variation) |
| Max Output Current | 100 mA (supports low-power microcontrollers, RF transceivers, or analog sensors) |
| Quiescent Current | 2.5 µA typical (enables multi-year battery life in always-on IoT endpoints) |
| Dropout Voltage | 280 mV at 100 mA (allows operation from single-cell Li-ion or two-cell alkaline down to ~2.78 V) |
| Input Voltage Range | 2.8 V to 6.0 V (compatible with common battery and intermediate rail supplies) |
| Enable Threshold | 1.3 V (ON), 0.5 V (OFF) - compatible with 1.8 V/3.3 V GPIO without level shifting) |
| Operating Temp | −40 °C to +85 °C (suitable for consumer and industrial ambient environments) |
| Output Capacitor | Min 0.1 µF ceramic (reduces BOM cost and board space vs. tantalum or larger electrolytics) |
Pinout & Package
The NCP662SQ25T1 is housed in the SC-82AB (Case 419C) surface-mount package: 2.0 × 1.25 × 0.9 mm, 4-pin, lead-free, micro-miniature footprint optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power supply ground reference; must be low-impedance connection to minimize noise and thermal rise |
| 2 | Vin | Input supply pin; accepts 2.8–6.0 V; requires local 1.0 µF decoupling capacitor |
| 3 | Vout | Regulated 2.5 V output; connects directly to load and 0.1 µF minimum ceramic capacitor |
| 4 | Enable | Active-high digital control input; tie to Vin for always-on operation; float not allowed |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 2.5 µA typical enables >10-year battery life in coin-cell–powered devices |
| Enable Control | Digital ON/OFF sequencing with defined logic thresholds eliminates need for external MOSFET switches |
| Stability with Ceramic Caps | Guaranteed stable with 0.1 µF–10 µF X5R/X7R ceramics - reduces ESR sensitivity and cost |
| Thermal Protection | Internal shutdown at ~160 °C prevents damage during sustained overload or poor PCB thermal design |
| Precision Output | ±2.0% initial accuracy over temperature ensures reliable ADC reference or logic-level compliance |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: Continuous ECG/PPG sensing powered by CR2032 coin cell with 10+ year target lifetime. IC Role / Device Role / Timing Role: Primary 2.5 V supply for ultra-low-power MCU and analog front-end, enabled only during measurement bursts. Use Value: 2.5 µA quiescent current extends battery life beyond 12 years; 280 mV dropout allows operation until battery reaches 2.78 V. | Use Scenario: Wireless temperature/humidity node in factory automation, operating unattended for 5+ years. IC Role / Device Role / Timing Role: Regulated 2.5 V rail for SiP MCU, BLE radio, and precision ADC - cycled via RTC wake-up. Use Value: Enable pin synchronizes power delivery with sensor acquisition, eliminating leakage paths; ±2.0% accuracy maintains ADC linearity. |
| Portable Barcode Scanner | Automotive Cabin Camera Module |
Use Scenario: Handheld scanner using dual AA batteries, requiring consistent 2.5 V for image sensor and decode engine. IC Role / Device Role / Timing Role: Main LDO supplying image sensor interface and flash memory controller during scan events. Use Value: 100 mA capability supports peak sensor current; SC-82AB package fits tight 12 mm × 12 mm PCB area. | Use Scenario: Low-profile rear-view camera module mounted near vehicle bumper, exposed to −40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: Secondary 2.5 V rail for ISP and MIPI interface logic, derived from 5 V automotive supply. Use Value: Specified −40 °C to +85 °C operation matches automotive cabin grade; AEC-Q100–qualified NCV variants available for full qualification path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-IQ LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/MB | 2.5 V, 250 mA, 1.6 µA IQ, SOT-23-3 (no enable) | No enable pin; fixed ON operation only | Select when system-level enable is handled externally or unnecessary |
| TPS7A0225PDQNR | 2.5 V, 300 mA, 25 nA IQ, 6-pin WSON with enable and power-good | Lower IQ, higher current, added PG signal, larger footprint | Select when nanoscale IQ or power-good monitoring is required and board space permits |
Compared with NCP662SQ25T1, MCP1700T-2502E/MB offers lower quiescent current but lacks enable control and has higher dropout (650 mV); TPS7A0225PDQNR delivers dramatically lower IQ and higher current but requires layout revision for its 6-pin WSON package and adds complexity with power-good signaling.
Availability
NCP662SQ25T1 is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, portable barcode scanners, and automotive cabin camera modules requiring stable component supply across long production lifecycles.
Supply support for NCP662SQ25T1 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 focused on energy-efficient electronics, with leadership in power management, analog, and sensing technologies.
The NCP662 series belongs to onsemi's low-power linear regulator product line, engineered specifically for battery-operated portable equipment where ultra-low quiescent current and small footprint are critical.
FAQ
What is the maximum input voltage rating for the NCP662SQ25T1?
The NCP662SQ25T1 has an absolute maximum input voltage of 6.0 V. Operation above this level risks permanent damage. For reliable 2.5 V regulation, Vin must be ≥2.78 V (2.5 V + 280 mV dropout). Input voltage should remain within 2.8 V to 6.0 V for normal operation per datasheet specifications.
Does the NCP662SQ25T1 require an external pull-up resistor on the Enable pin?
No, the NCP662SQ25T1 does not require an external pull-up on the Enable pin. If enable functionality is unused, the pin must be connected directly to Vin to ensure the device remains active. Floating the Enable pin is prohibited and may cause unpredictable behavior or increased quiescent current.
Can the NCP662SQ25T1 operate with a 0.1 µF ceramic output capacitor?
Yes, the NCP662SQ25T1 is explicitly characterized and guaranteed stable with a minimum 0.1 µF ceramic output capacitor (X5R/X7R dielectric). Larger values (up to 10 µF) improve transient response and noise rejection but are not required for basic regulation stability.
What is the thermal shutdown threshold for the NCP662SQ25T1?
The NCP662SQ25T1 incorporates internal thermal protection that activates at approximately 160 °C junction temperature, turning off the output to prevent damage. Recovery occurs automatically once the junction cools below the hysteresis threshold (~140 °C). This feature is independent of ambient temperature and depends solely on power dissipation and PCB thermal design.
Is the NCP662SQ25T1 pin-compatible with other members of the NCP662 family?
Yes, all NCP662 variants (e.g., NCP662SQ15T1, NCP662SQ33T1) share identical SC-82AB pinout and electrical interface - only the output voltage and marking code differ. This allows drop-in replacement across 1.5 V to 5.0 V versions without PCB changes, provided input voltage and load requirements remain compatible.
NCP662SQ25T1 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 100mA
- Current - Output:
- 100mA
- 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
NCP662SQ25T1 FAQ
1.How can I place an order for NCP662SQ25T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP662SQ25T1 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 NCP662SQ25T1 reliable?
The price and inventory of NCP662SQ25T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP662SQ25T1 is usually 5 days.
3.What payment methods are accepted for NCP662SQ25T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP662SQ25T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP662SQ25T1?
NCP662SQ25T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP662SQ25T1 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 NCP662SQ25T1?
For technical support, including NCP662SQ25T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP662SQ25T1 requirements.
6.How does Aetrix verify that NCP662SQ25T1 is sourced from the original manufacturer or authorized distributors?
All NCP662SQ25T1 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 NCP662SQ25T1 meets industry standards.
7.What is the process for return or replacement of NCP662SQ25T1?
All NCP662SQ25T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP662SQ25T1, 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 NCP662SQ25T1 part is unused and in its original packaging.
Return procedure for NCP662SQ25T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP662SQ25T1 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
