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onsemi NCP612SQ30T1
- Part No.:
- NCP612SQ30T1
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCP612SQ30T1.pdf
- Description:
- IC REG LINEAR 3V 100MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:4,705
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Product details
Overview
NCP612SQ30T1 from onsemi is a 3.0 V fixed-output CMOS low-quiescent-current LDO voltage regulator in SC70−5 package, delivering up to 100 mA output current with 40 µA typical quiescent current and 230 mV dropout at full load - designed for battery-powered portable electronics requiring stable, ultra-low-power regulation.
For engineers reviewing the NCP612SQ30T1 datasheet, pinout, applications, or equivalent options, key selection criteria include its 2.0% output voltage accuracy over −40°C to +85°C, enable-controlled standby mode, compatibility with low-ESR ceramic capacitors, and thermal shutdown protection.
Technical Context
The NCP612SQ30T1 integrates a PMOS pass transistor, precision voltage reference, error amplifier, and protection circuitry (current limit and thermal shutdown) in a single die. It operates as a fixed-output linear regulator with no external feedback resistors required.
Its enable input provides logic-level control (VTH(HI) = 0.95 V, VTH(LO) = 0.3 V), allowing system-level power sequencing. The device is optimized for operation with 1.0 µF input and output ceramic capacitors and exhibits 100 µVRMS output noise (100 Hz–100 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±2.0% (ensures stable MCU core or sensor rail within tight tolerance across temperature) |
| Max Output Current | 100 mA (supports low-power microcontrollers, RF transceivers, and analog sensors) |
| Quiescent Current | 40 µA typical (enables multi-year battery life in always-on IoT endpoints) |
| Dropout Voltage | 230 mV at 100 mA (allows regulation from 3.23 V input down to 3.0 V output) |
| Operating Temp Range | −40°C to +85°C (suitable for consumer and industrial ambient environments) |
| Input Voltage Range | 0 V to 6.0 V (compatible with single-cell Li-ion, 2-cell alkaline, or regulated 5 V supplies) |
| Enable Threshold | Logic-high ≥0.95 V; logic-low ≤0.3 V (directly interfaceable with 1.8 V/3.3 V GPIO without level shift) |
Pinout & Package
Package: SC70−5 (SC−88A/SOT−353), case 419A−02, 1.9 mm × 1.3 mm footprint, 0.65 mm lead pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Positive input supply connection; must be decoupled with ≥1.0 µF ceramic capacitor near pin |
| 2 | Gnd | Power ground reference; requires low-impedance PCB plane connection for stability |
| 3 | Enable | Active-high digital control input; pulls low to disable regulator and reduce IQ to <30 nA |
| 4 | N/C | No internal connection; must remain unconnected or floating (not tied to Gnd/Vin) |
| 5 | Vout | Regulated 3.0 V output; requires ≥1.0 µF ceramic capacitor with ESR 1–5 Ω for transient response |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 40 µA typical enables >10-year battery life in 10 µA average-load applications |
| Low-dropout architecture | PMOS pass element eliminates body diode conduction, enabling reverse-voltage blocking |
| Stable with ceramic capacitors | No minimum ESR requirement allows use of compact, low-cost X5R/X7R MLCCs |
| Integrated thermal protection | Shuts down at ~160°C junction temperature and auto-recovers upon cooling |
| Enable-controlled shutdown | Reduces total system standby current to sub-µA levels when disabled |
Applications
| Wearable Health Monitor | Smart Sensor Node |
|---|---|
Use Scenario: Continuous ECG/PPG sensing powered by coin-cell battery with 5+ year lifetime requirement. IC Role / Device Role / Timing Role: Primary 3.0 V supply for ultra-low-power MCU and analog front-end. Use Value: 40 µA quiescent current minimizes battery drain during sleep cycles; 2.0% output accuracy ensures consistent ADC reference stability. | Use Scenario: Wireless environmental sensor (temp/humidity/pressure) operating on AA batteries in remote deployment. IC Role / Device Role / Timing Role: Regulated 3.0 V rail for BLE SoC and precision analog signal chain. Use Value: 230 mV dropout extends usable battery range down to 3.23 V; SC70−5 footprint saves board space in compact enclosure. |
| Portable Medical Diagnostic Tool | Industrial Handheld Scanner |
Use Scenario: Battery-operated point-of-care device performing rapid optical assays with intermittent high-current LED pulses. IC Role / Device Role / Timing Role: Stable 3.0 V supply for microcontroller and analog acquisition circuitry during dynamic load transitions. Use Value: Low output noise (100 µVRMS) prevents interference with sensitive photodiode signals; fast load transient response maintains regulation during LED turn-on. | Use Scenario: Rugged handheld barcode scanner using 2xAA alkaline batteries in warehouse environments (−20°C to 60°C). IC Role / Device Role / Timing Role: Main 3.0 V regulator for ARM Cortex-M MCU and laser driver IC. Use Value: −40°C to +85°C rating ensures reliable startup and operation in cold storage areas; enable pin allows firmware-controlled power gating between scans. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/MB | 250 mV dropout at 250 mA; 1.8 µA quiescent current; SOT-23-5 package | Lower IQ but higher dropout and larger footprint; no enable pin | Prefer for ultra-low-power sleep modes where enable control is unnecessary |
| TPS70630DBVR | 220 mV dropout at 150 mA; 1 µA quiescent current; 3.0 V fixed; SOT-23-5 | Higher max current and lower IQ, but requires minimum 1 µF output capacitor with ≥15 mΩ ESR | Prefer when higher load current or tighter IQ is critical and ceramic capacitor ESR can be controlled |
Compared with MCP1700T-3002E/MB and TPS70630DBVR, the NCP612SQ30T1 offers integrated enable functionality and guaranteed stability with zero-ESR ceramics - making it optimal for space-constrained, enable-driven portable systems where moderate IQ and proven ceramic compatibility outweigh absolute lowest quiescent current.
Availability
NCP612SQ30T1 is available at Aetrix Electronics and suitable for wearable health monitors, smart sensor nodes, and portable medical diagnostic tools requiring stable component supply with long-lifecycle support.
Supply support for NCP612SQ30T1 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP612 series belongs to onsemi's low-power linear regulator product line, engineered specifically for battery-powered portable electronics demanding ultra-low quiescent current, small footprint, and robust thermal performance.
FAQ
What is the maximum input voltage rating for the NCP612SQ30T1?
The NCP612SQ30T1 has an absolute maximum input voltage rating of 6.0 V. Operation above this voltage risks permanent damage. For reliable long-term use, the recommended maximum continuous input is 5.5 V when Vin ≥ Vout + 1.0 V, per datasheet operating conditions. The NCP612SQ30T1 must never be exposed to input transients exceeding 6.0 V, even momentarily.
Does the NCP612SQ30T1 require an external pull-up resistor on the Enable pin?
No, the NCP612SQ30T1 does not require an external pull-up resistor on the Enable pin. When unused, the Enable pin must be directly connected to Vin to ensure the device remains enabled. The internal design does not include a weak pull-up; leaving Enable floating may cause erratic behavior or unintended shutdown. The NCP612SQ30T1 Enable threshold is specified at 0.95 V (turn-on) and 0.3 V (turn-off), compatible with standard logic outputs.
Can the NCP612SQ30T1 be used with a 10 µF ceramic output capacitor?
Yes, the NCP612SQ30T1 is fully stable with ceramic output capacitors ranging from 1.0 µF to 10 µF and ESR values from near-zero up to 5.0 Ω. A 10 µF X5R ceramic capacitor improves load transient response and output noise suppression compared to the minimum 1.0 µF value. The NCP612SQ30T1 does not require any minimum ESR, unlike many older LDOs - this is confirmed in the Applications Information section of the datasheet.
What is the thermal shutdown trigger temperature for the NCP612SQ30T1?
The NCP612SQ30T1 incorporates internal thermal protection that activates at approximately 160°C junction temperature, shutting down the output to prevent damage. Recovery is automatic once the junction temperature falls below the hysteresis threshold (~140°C). This protection is independent of ambient temperature and depends solely on power dissipation and PCB thermal design. The NCP612SQ30T1 maximum operating junction temperature is +150°C, and thermal shutdown serves as a safety guard beyond that limit.
Is the NCP612SQ30T1 RoHS-compliant and halogen-free?
Yes, the NCP612SQ30T1 is RoHS-compliant and halogen-free. The "T1" suffix denotes tape-and-reel packaging, and the standard version meets JEDEC JS709B and JESD204B material requirements. Pb-free variants (marked with "G" suffix, e.g., NCP612SQ30T1G) are also available and fully compliant with EU RoHS Directive 2011/65/EU and China RoHS. Full compliance documentation is available via onsemi's official product page and material declarations.
NCP612SQ30T1 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):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 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)
NCP612SQ30T1 FAQ
1.How can I place an order for NCP612SQ30T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP612SQ30T1 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 NCP612SQ30T1 reliable?
The price and inventory of NCP612SQ30T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP612SQ30T1 is usually 5 days.
3.What payment methods are accepted for NCP612SQ30T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP612SQ30T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP612SQ30T1?
NCP612SQ30T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP612SQ30T1 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 NCP612SQ30T1?
For technical support, including NCP612SQ30T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP612SQ30T1 requirements.
6.How does Aetrix verify that NCP612SQ30T1 is sourced from the original manufacturer or authorized distributors?
All NCP612SQ30T1 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 NCP612SQ30T1 meets industry standards.
7.What is the process for return or replacement of NCP612SQ30T1?
All NCP612SQ30T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP612SQ30T1, 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 NCP612SQ30T1 part is unused and in its original packaging.
Return procedure for NCP612SQ30T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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