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onsemi NCP612SQ50T2G
- Part No.:
- NCP612SQ50T2G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCP612SQ50T2G.pdf
- Description:
- IC REG LINEAR 5V 100MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:4,470
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Product details
Overview
NCP612SQ50T2G from onsemi is a fixed-output CMOS low-dropout linear voltage regulator delivering 5.0 V at up to 100 mA, featuring ultra-low 40 µA quiescent current and 230 mV dropout at full load - designed for battery-powered portable electronics requiring stable, low-power biasing of microcontrollers, sensors, and RF modules.
For engineers reviewing the NCP612SQ50T2G datasheet, pinout, applications, or equivalent options, key selection criteria include output accuracy (±2.0%), SC70-5 thermal performance (RJA = 300 °C/W), −40 °C to +85 °C industrial operating range, and enable-controlled standby mode.
Technical Context
The NCP612SQ50T2G integrates a PMOS pass transistor with internal voltage reference, error amplifier, and protection circuitry (current limit and thermal shutdown). It operates without external compensation and supports ceramic output capacitors as low as 1.0 µF.
Its enable input provides logic-level control (VTH(HI) = 0.95 V, VTH(LO) = 0.3 V), allowing system-level power sequencing. Dropout behavior is temperature- and load-dependent, with typical 160 mV at 100 mA and 5.0 V output across −40 °C to +85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2.0% (ensures stable MCU core/buffer rail within tolerance over temp and load) |
| Max Output Current | 100 mA (supports low-power peripherals without thermal derating under typical PCB layout) |
| Quiescent Current | 40 µA typical (enables >1-year battery life in always-on sensor nodes at 10 µA average system draw) |
| Dropout Voltage | 230 mV at 100 mA (allows regulation from 5.23 V input, e.g., single Li-ion cell with aging margin) |
| Line Regulation | 3.0 mV/V (maintains <15 mV output shift across 5.23–6.0 V input range) |
| Operating Temp | −40 °C to +85 °C (qualified for industrial-grade handheld and instrumentation environments) |
| Package | SC70-5 (1.25 mm × 2.1 mm footprint; compatible with high-density portable PCB assembly) |
Pinout & Package
SC70-5 surface-mount package (Case 419A), 1.25 mm × 2.1 mm × 0.95 mm height, Pb-free, micro-miniature footprint optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Positive input supply (0–6.0 V absolute max); requires local 1.0 µF decoupling per datasheet guidance |
| 2 | Gnd | Power ground reference; must be low-impedance connection to minimize noise coupling |
| 3 | Enable | Active-high digital control (0.95 V turn-on threshold); tie to Vin if unused to ensure regulation |
| 4 | N/C | No internal connection; leave unconnected or float - no routing or soldering required |
| 5 | Vout | Regulated 5.0 V output; requires 1.0 µF ceramic capacitor placed adjacent to pin per stability requirements |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 40 µA typical enables multi-year operation in coin-cell–powered IoT endpoints |
| Low ESR capacitor support | Stable with 1.0 µF ceramic output cap (no minimum ESR requirement) - reduces BOM count and board area |
| Integrated thermal shutdown | Activates at ~160 °C junction temperature, protecting against sustained overload or poor heatsinking |
| Enable-controlled standby | Reduces total system current to <1 µA when disabled - critical for duty-cycled sensing applications |
| Pb-free SC70-5 package | RoHS-compliant, reflow-compatible footprint matching industry-standard SOT-353 placement tooling |
Applications
| Wearable Health Monitor | Industrial Handheld Scanner |
|---|---|
Use Scenario: Continuous ECG signal acquisition powered by CR2032 coin cell with 10-second wake-up intervals. IC Role / Device Role / Timing Role: Primary 5.0 V bias rail for analog front-end and BLE radio during active measurement bursts. Use Value: 40 µA quiescent current extends battery life beyond 24 months; SC70-5 size fits sub-20 mm² PCB real estate. | Use Scenario: Ruggedized barcode scanner operating in warehouse environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Stable 5.0 V supply for CMOS image sensor and laser driver ICs during intermittent scan cycles. Use Value: ±2.0% output accuracy ensures consistent sensor gain calibration; −40 °C to +85 °C rating guarantees reliability across seasonal storage and operation. |
| Smart Home Sensor Node | Portable Audio Recorder |
Use Scenario: Battery-powered temperature/humidity node transmitting data hourly via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Regulated 5.0 V rail for RF IC and microcontroller during transmit burst (100 mA peak). Use Value: 230 mV dropout allows direct use of partially discharged 2-cell alkaline (3.2 V min) with headroom for voltage sag. | Use Scenario: Pocket-sized digital recorder using single Li-ion cell (4.2–3.0 V range) powering audio codec and flash memory. IC Role / Device Role / Timing Role: Clean 5.0 V supply for high-SNR audio ADC and SD card interface logic. Use Value: 100 µVRMS output noise (100 Hz–100 kHz) prevents audible artifacts; no external compensation simplifies layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-5002E/TT | 400 mV dropout at 250 mA; 1.8 µA IQ; SOT-23-3 package (no enable) | Lacks enable pin and SC70-5 footprint; better for ultra-low-IQ but not pin-compatible | Select if minimal quiescent current dominates over enable control and board space |
| AP2210K-5.0TRG1 | 300 mV dropout at 150 mA; 65 µA IQ; SOT-23-5 with enable (same pinout function but different marking) | Higher IQ and larger footprint; same functional interface but requires layout revision | Choose when higher output current margin is needed and SC70-5 size constraint is relaxed |
Compared with MCP1700T-5002E/TT and AP2210K-5.0TRG1, the NCP612SQ50T2G uniquely balances ultra-low IQ, enable functionality, and minimal SC70-5 footprint - making it optimal for space- and battery-limited portable systems where all three attributes are simultaneously required.
Availability
NCP612SQ50T2G is available at Aetrix Electronics and suitable for wearable health monitors, industrial handheld scanners, and smart home sensor nodes requiring stable component supply with long-term manufacturability assurance.
Supply support for NCP612SQ50T2G 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 IoT applications.
The NCP612 series belongs to onsemi's precision linear regulator product line, engineered specifically for ultra-low-power, space-constrained portable devices where battery longevity and minimal PCB area are primary design constraints.
FAQ
What is the maximum input voltage rating for the NCP612SQ50T2G?
The NCP612SQ50T2G has an absolute maximum input voltage (Vin) rating of 6.0 V. Exceeding this voltage risks permanent damage. For reliable operation at 5.0 V output, the recommended input range is 5.23 V to 6.0 V to maintain regulation across temperature and load while respecting the 230 mV dropout specification. Always include transient suppression if used in noisy environments.
Does the NCP612SQ50T2G require an external capacitor on the output pin?
Yes, the NCP612SQ50T2G requires a minimum 1.0 µF ceramic capacitor on the Vout pin, placed as close as possible to the device. This capacitor ensures stability, improves load transient response, and reduces output noise. The datasheet confirms compatibility with low-ESR ceramics and explicitly states no minimum ESR is required - enabling cost-effective, compact capacitor selection.
Can the NCP612SQ50T2G be used in automotive applications?
No - the NCP612SQ50T2G is rated for −40 °C to +85 °C and is not AEC-Q100 qualified. For automotive use, select the NCV612SQ50T2G variant (marked with "NCV" prefix), which shares identical electrical specs but is qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C) and supports PPAP documentation. The NCP612SQ50T2G is intended for industrial and consumer portable equipment only.
What is the purpose of Pin 4 (N/C) on the NCP612SQ50T2G?
Pin 4 on the NCP612SQ50T2G is labeled N/C (No Connection) and has no internal bond wire or circuit connection. It must remain unconnected - neither tied to ground nor routed on the PCB. This pin exists solely for mechanical symmetry and package standardization within the SC70-5 footprint; soldering or routing to it may cause assembly defects or unintended parasitic coupling.
How does the enable function behave when left unconnected on the NCP612SQ50T2G?
If the Enable pin (Pin 3) is left floating on the NCP612SQ50T2G, device behavior is undefined and may result in erratic startup or oscillation due to noise susceptibility. The datasheet mandates connecting Enable to Vin if unused - this ensures a valid logic-high state (>0.95 V), guaranteeing continuous regulation. A pull-up resistor is unnecessary; direct connection to Vin is the validated, low-risk implementation.
NCP612SQ50T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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):
- 90 µA
- Current - Supply (Max):
- 90 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-88A (SC-70-5/SOT-353)
NCP612SQ50T2G FAQ
1.How can I place an order for NCP612SQ50T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP612SQ50T2G 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 NCP612SQ50T2G reliable?
The price and inventory of NCP612SQ50T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP612SQ50T2G is usually 5 days.
3.What payment methods are accepted for NCP612SQ50T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP612SQ50T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP612SQ50T2G?
NCP612SQ50T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP612SQ50T2G 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 NCP612SQ50T2G?
For technical support, including NCP612SQ50T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP612SQ50T2G requirements.
6.How does Aetrix verify that NCP612SQ50T2G is sourced from the original manufacturer or authorized distributors?
All NCP612SQ50T2G 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 NCP612SQ50T2G meets industry standards.
7.What is the process for return or replacement of NCP612SQ50T2G?
All NCP612SQ50T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP612SQ50T2G, 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 NCP612SQ50T2G part is unused and in its original packaging.
Return procedure for NCP612SQ50T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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