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onsemi NCP663SQ50T1G
- Part No.:
- NCP663SQ50T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP663SQ50T1G.pdf
- Description:
- IC REG LINEAR 5V 100MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,901
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Product details
Overview
NCP663SQ50T1G from onsemi is a fixed-output, 5.0 V, 100 mA CMOS low-dropout linear regulator in SC-82AB package, featuring 2.5 µA typical quiescent current, ±2.0% output voltage accuracy, and 170 mV dropout at 100 mA - designed for battery-powered instrumentation requiring ultra-low standby power.
For engineers reviewing the NCP663SQ50T1G datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at full load, thermal performance in micro-miniature SC-82AB layout, absence of enable functionality, and compatibility with 0.1 µF ceramic output capacitors.
Technical Context
The NCP663SQ50T1G uses a PMOS pass transistor architecture enabling low dropout and ultra-low ground current. It integrates internal current limit and thermal shutdown protection but omits an enable pin - distinguishing it from the NCP662/NCV662 series.
Its regulation loop maintains 5.0 V output across −40 °C to +85 °C ambient, with line regulation ≤20 mV over 1.5–4.4 V input range and load regulation ≤40 mV from 10 mA to 100 mA load variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2.0% (ensures stable supply for 5 V logic or analog circuitry) |
| Max Output Current | 100 mA (supports low-power microcontrollers, sensors, and RF modules) |
| Dropout Voltage | 170 mV at 100 mA (enables operation down to 5.17 V input for 5.0 V output) |
| Quiescent Current | 2.5 µA typical (extends battery life in always-on monitoring applications) |
| Input Voltage Range | Up to 6.0 V (compatible with single-cell Li-ion or 5 V rail with margin) |
| Output Capacitor Min | 0.1 µF ceramic (reduces BOM cost and PCB area vs. tantalum) |
| Operating Temp | −40 °C to +85 °C (suitable for industrial and consumer portable equipment) |
Pinout & Package
The NCP663SQ50T1G is housed in the SC-82AB (Case 419C) surface-mount package - a 4-pin, 2.0 × 1.25 mm micro-miniature outline with exposed thermal pad (not electrically connected), optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power supply reference and thermal return path; must be connected to low-impedance ground plane |
| 2 | Vin | Unregulated input supply (max 6.0 V); requires local 1.0 µF decoupling capacitor |
| 3 | Vout | Stable 5.0 V regulated output; supports 0.1 µF minimum ceramic capacitor |
| 4 | N/C | No internal connection - left floating or grounded per layout best practice; not usable as enable or feedback |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 2.5 µA typical ground current enables >1-year battery life in 10 µA average-load IoT sensors |
| Low-ESR Cap Support | Stable with 0.1 µF ceramic output capacitor - eliminates need for costly tantalum or polymer types |
| Thermal Shutdown | Internal protection activates at ~160 °C junction temperature, preventing damage during overload or poor heatsinking |
| PMOS Pass Element | Enables low dropout and near-zero reverse current - critical for battery backup integrity |
| ±2.0% Output Accuracy | Meets tight tolerance requirements for ADC references and precision analog subsystems |
Applications
| Portable Medical Sensors | Industrial Handheld Testers |
|---|---|
Use Scenario: Continuous glucose monitor with BLE radio operating from coin cell. IC Role / Device Role / Timing Role: Primary 5.0 V LDO supplying MCU, sensor front-end, and RF transceiver. Use Value: 2.5 µA quiescent current extends 220 mAh CR2032 battery life beyond 18 months in sleep mode. | Use Scenario: Battery-powered multimeter with LCD and auto-ranging circuitry. IC Role / Device Role / Timing Role: Fixed 5.0 V regulator powering analog signal chain and display driver. Use Value: 170 mV dropout allows reliable operation down to 5.17 V input - supporting >95% of Li-ion discharge curve. |
| Camcorder Image Stabilization | Smart Home Motion Detectors |
Use Scenario: Gyro-controlled optical image stabilization module in compact camcorders. IC Role / Device Role / Timing Role: Low-noise 5.0 V supply for MEMS gyro and actuator driver ICs. Use Value: 100 µVRMS output noise (at 3.0 V variant) ensures minimal jitter in closed-loop control signals. | Use Scenario: PIR-based occupancy sensor with ultra-low-power MCU and Zigbee radio. IC Role / Device Role / Timing Role: Main 5.0 V regulator for wake-up logic and RF interface during periodic sensing bursts. Use Value: SC-82AB footprint (2.0 × 1.25 mm) enables integration into <8 mm² PCB area constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCP662SQ50T1G | Includes active-high Enable pin; otherwise identical electrical specs and SC-82AB package | Required where system-level power sequencing or standby control is needed | Select NCP662SQ50T1G only if external ON/OFF control is mandatory; NCP663SQ50T1G simplifies design when always-on operation suffices |
| NCV663SQ50T1G | Same pinout and electrical specs, but rated for −40 °C to +125 °C and AEC-Q100 qualified | Targeted at automotive infotainment and under-hood modules requiring extended temperature and PPAP compliance | Choose NCV663SQ50T1G for automotive-grade reliability; NCP663SQ50T1G is optimized for cost-sensitive industrial/consumer use |
Compared with NCP662SQ50T1G, the NCP663SQ50T1G removes enable functionality to reduce complexity and cost; versus NCV663SQ50T1G, it trades automotive qualification for lower unit price and standard industrial temperature range - both retain identical 5.0 V output, 100 mA capability, and SC-82AB footprint.
Availability
NCP663SQ50T1G is available at Aetrix Electronics and suitable for portable medical sensors, industrial handheld testers, and smart home motion detectors requiring stable component supply with consistent lead times and full traceability.
Supply support for NCP663SQ50T1G 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, and sensor solutions for automotive, industrial, and portable electronics.
The NCP663SQ50T1G belongs to onsemi's NCP66x/NCP663 family of ultra-low-IQ LDOs - engineered specifically for battery-powered instruments where standby current and small footprint are primary constraints.
FAQ
Does the NCP663SQ50T1G have an enable pin?
No, the NCP663SQ50T1G does not include an enable pin. Pin 4 is marked N/C (no internal connection). This distinguishes it from the NCP662SQ50T1G, which features an active-high enable on pin 4. The NCP663SQ50T1G is intended for always-on applications where external power control is unnecessary.
What is the minimum output capacitor required for stable operation of the NCP663SQ50T1G?
The NCP663SQ50T1G requires a minimum 0.1 µF ceramic output capacitor for stability across all operating conditions. Larger values improve load transient response and noise rejection. The device is compatible with ceramic capacitors exhibiting ESR from a few milliohms up to 10 Ω - no specific ESR range is mandated.
What is the maximum input voltage rating for the NCP663SQ50T1G?
The absolute maximum input voltage for the NCP663SQ50T1G is 6.0 V, as specified in the Maximum Ratings table. Operation above this level risks permanent damage. For reliable 5.0 V output, Vin should remain ≥5.17 V (accounting for 170 mV dropout at 100 mA) and ≤6.0 V.
Is the NCP663SQ50T1G suitable for automotive applications?
The NCP663SQ50T1G is rated for −40 °C to +85 °C ambient operation and is not AEC-Q100 qualified. For automotive use, select the NCV663SQ50T1G variant, which shares identical electrical specs and SC-82AB packaging but is qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C) and supports PPAP documentation.
What thermal considerations apply to the NCP663SQ50T1G in high-current operation?
At 100 mA output and 6.0 V input, the NCP663SQ50T1G dissipates up to 100 mW. With RJA = 330 °C/W, junction temperature rise is ~33 °C above ambient. To maintain TJ < 150 °C, ensure adequate copper area under the SC-82AB thermal pad and avoid enclosing the device in thermally restrictive enclosures.
NCP663SQ50T1G 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 1 µA
- Current - Supply (Max):
- 6 µA
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-82AB
NCP663SQ50T1G FAQ
1.How can I place an order for NCP663SQ50T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP663SQ50T1G 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 NCP663SQ50T1G reliable?
The price and inventory of NCP663SQ50T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP663SQ50T1G is usually 5 days.
3.What payment methods are accepted for NCP663SQ50T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP663SQ50T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP663SQ50T1G?
NCP663SQ50T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP663SQ50T1G 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 NCP663SQ50T1G?
For technical support, including NCP663SQ50T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP663SQ50T1G requirements.
6.How does Aetrix verify that NCP663SQ50T1G is sourced from the original manufacturer or authorized distributors?
All NCP663SQ50T1G 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 NCP663SQ50T1G meets industry standards.
7.What is the process for return or replacement of NCP663SQ50T1G?
All NCP663SQ50T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP663SQ50T1G, 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 NCP663SQ50T1G part is unused and in its original packaging.
Return procedure for NCP663SQ50T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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