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onsemi NCP663SQ15T1G
- Part No.:
- NCP663SQ15T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP663SQ15T1G.pdf
- Description:
- IC REG LINEAR 1.5V 100MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,392
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Product details
Overview
NCP663SQ15T1G from onsemi is a fixed-output, 1.5 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 dropout voltage of 680 mV at 100 mA load - designed for battery-powered instrumentation and portable electronics requiring ultra-low standby power.
For engineers reviewing the NCP663SQ15T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 1.5 V fixed output, SC-82AB footprint compatibility, absence of enable functionality (N/C pin), thermal shutdown protection, and operation across −40 °C to +85 °C ambient range.
Technical Context
The NCP663SQ15T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection circuits - delivering stable regulation without requiring external compensation. Its architecture eliminates the need for minimum ESR output capacitors and supports ceramic decoupling as low as 0.1 µF.
Unlike the NCP662 variant, the NCP663 series omits the Enable pin (Pin 4 is N/C), simplifying control logic in always-on applications while retaining identical electrical performance, thermal characteristics, and package dimensions. It operates with input voltages up to 6.0 V and maintains regulation down to 1.5 V output with <3.0% dropout deviation at full load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2.0% over −40 °C to +85 °C, enabling direct powering of low-voltage logic and analog circuitry. |
| Max Output Current | 100 mA continuous, sufficient for microcontrollers, sensors, and RF front-ends in compact portable systems. |
| Quiescent Current | 2.5 µA typical at no load, minimizing battery drain during sleep modes in battery-operated devices. |
| Dropout Voltage | 680 mV at 100 mA load (measured at Vout −3.0%), allowing operation from single-cell Li-ion or two-cell alkaline sources. |
| Input Voltage Range | 1.8 V to 6.0 V, supporting wide-input battery chemistries and post-regulation supply rails. |
| Thermal Protection | Internal shutdown activates at ~160 °C junction temperature, preventing permanent damage under sustained overload or poor PCB thermal design. |
| Output Capacitor Min | 0.1 µF ceramic, enabling use of small, low-cost, high-reliability MLCCs without stability concerns. |
Pinout & Package
The NCP663SQ15T1G is housed in the SC-82AB (Case 419C) surface-mount package - a 4-pin, 2.0 × 1.25 mm micro-miniature outline with 0.65 mm pitch, optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference; must be connected to low-impedance system ground plane to ensure noise immunity and thermal dissipation. |
| 2 | Vin | Unregulated input supply; accepts 1.8–6.0 V and must be decoupled with ≥1.0 µF capacitor placed adjacent to the pin. |
| 3 | Vout | Stable 1.5 V regulated output; requires ≥0.1 µF ceramic capacitor directly at the pin for transient response and stability. |
| 4 | N/C | No internal connection; left unconnected or tied to GND per layout best practice - not usable for enable or feedback. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 2.5 µA typical quiescent current enables multi-year battery life in always-on sensor nodes and wearables. |
| Ceramic-cap stable | Guaranteed stability with 0.1 µF–10 µF ceramic output capacitors - eliminates need for tantalum or aluminum electrolytics. |
| ±2.0% output accuracy | Tight initial tolerance ensures reliable operation of 1.5 V I/O domains and low-voltage ADC references without trimming. |
| Thermal shutdown | Integrated protection triggers at ~160 °C junction temperature, safeguarding against PCB-level thermal runaway. |
| Pb-free SC-82AB | RoHS-compliant 2.0 × 1.25 mm package with standard reflow profile compatibility and traceable sourcing. |
Applications
| Battery-Powered Instrumentation | Portable Medical Sensors |
|---|---|
Use Scenario: Handheld multimeters and portable gas analyzers powered by coin-cell or AA batteries. IC Role / Device Role / Timing Role: Primary 1.5 V supply for microcontroller, display driver, and analog front-end. Use Value: 2.5 µA quiescent current extends battery life beyond 5 years in intermittent-use instruments. | Use Scenario: Wearable pulse oximeters and glucose monitors operating from single-cell Li-ion. IC Role / Device Role / Timing Role: Clean 1.5 V rail for optical sensor biasing and low-noise signal conditioning. Use Value: 680 mV dropout allows full utilization of battery voltage down to 2.2 V, maximizing runtime. |
| Low-Voltage IoT Edge Nodes | Camcorder Audio Subsystem |
Use Scenario: BLE-enabled environmental sensors deployed in remote locations with primary battery backup. IC Role / Device Role / Timing Role: Regulated 1.5 V supply for ultra-low-power MCU and RF transceiver I/O. Use Value: ±2.0% output accuracy ensures consistent digital logic thresholds and ADC reference stability. | Use Scenario: Miniature camcorders using 1.5 V audio codecs and microphone preamps. IC Role / Device Role / Timing Role: Dedicated low-noise 1.5 V supply for analog audio signal path. Use Value: 100 mVpp output noise (100 Hz–100 kHz) preserves SNR in high-fidelity audio capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/MB | 250 mV dropout at 100 mA; 1.6 µA IQ; SOT-23-3 package (3-pin, no N/C) | Requires different PCB layout; lacks thermal shutdown; lower dropout enables tighter input margins. | Select when minimal dropout and smallest footprint are critical, and thermal protection is handled externally. |
| TPS70615QDBVRQ1 | Automotive-grade (AEC-Q100); 170 mV dropout; 1.7 µA IQ; enable pin included; SOT-23-5 | Includes active-high enable and automotive qualification; higher cost and larger footprint than SC-82AB. | Choose for automotive infotainment subsystems requiring PPAP support and functional safety readiness. |
Compared with MCP1700T-1502E/MB and TPS70615QDBVRQ1, the NCP663SQ15T1G offers balanced ultra-low IQ, integrated thermal protection, and minimal board area in SC-82AB - ideal for cost-sensitive, space-constrained consumer and industrial portable designs where enable control is unnecessary.
Availability
NCP663SQ15T1G is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical sensors, low-voltage IoT edge nodes, and camcorder audio subsystems requiring stable component supply with long-term manufacturability assurance.
Supply support for NCP663SQ15T1G 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, delivering silicon solutions for automotive, industrial, cloud, and intelligent power systems.
The NCP663SQ15T1G belongs to onsemi's NCP663 family of ultra-low-IQ LDO regulators - engineered specifically for extended-battery-life portable equipment where minimal standby consumption and small form factor are essential.
FAQ
What is the maximum input voltage rating for the NCP663SQ15T1G?
The NCP663SQ15T1G has an absolute maximum input voltage rating of 6.0 V. Exceeding this value may cause permanent damage. For reliable operation, Vin should remain within 1.8 V to 6.0 V, with recommended derating for thermal management at high ambient temperatures or full-load conditions.
Does the NCP663SQ15T1G include an enable function?
No, the NCP663SQ15T1G does not include an enable function. Pin 4 is designated N/C (no internal connection), distinguishing it from the NCP662 series which features an active-enable pin. The NCP663SQ15T1G operates continuously when valid input voltage is applied to Pin 2 (Vin).
What is the minimum output capacitor required for stable operation of the NCP663SQ15T1G?
The NCP663SQ15T1G requires a minimum output capacitor of 0.1 µF ceramic. This value ensures stability across all operating conditions and load currents. Larger values (e.g., 1.0 µF) improve load transient response and noise rejection but are not mandatory for basic regulation.
What is the dropout voltage of the NCP663SQ15T1G at 100 mA load?
The dropout voltage of the NCP663SQ15T1G is 680 mV (typical) at 100 mA load, measured when Vout drops 3.0% below nominal (i.e., to 1.455 V). This specification applies across the full operating temperature range of −40 °C to +85 °C.
Is the NCP663SQ15T1G RoHS-compliant and lead-free?
Yes, the NCP663SQ15T1G is Pb-free and RoHS-compliant, indicated by the "G" suffix in the part number and confirmed in the onsemi datasheet ordering table. It meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for standard reflow assembly.
NCP663SQ15T1G 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.95V @ 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
NCP663SQ15T1G FAQ
1.How can I place an order for NCP663SQ15T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP663SQ15T1G 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 NCP663SQ15T1G reliable?
The price and inventory of NCP663SQ15T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP663SQ15T1G is usually 5 days.
3.What payment methods are accepted for NCP663SQ15T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP663SQ15T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP663SQ15T1G?
NCP663SQ15T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP663SQ15T1G 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 NCP663SQ15T1G?
For technical support, including NCP663SQ15T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP663SQ15T1G requirements.
6.How does Aetrix verify that NCP663SQ15T1G is sourced from the original manufacturer or authorized distributors?
All NCP663SQ15T1G 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 NCP663SQ15T1G meets industry standards.
7.What is the process for return or replacement of NCP663SQ15T1G?
All NCP663SQ15T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP663SQ15T1G, 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 NCP663SQ15T1G part is unused and in its original packaging.
Return procedure for NCP663SQ15T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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