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onsemi NCV1117DT18T5
- Part No.:
- NCV1117DT18T5
- Manufacturer:
- onsemi
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
NCV1117DT18T5.pdf
- Description:
- IC REG LINEAR 1.8V 1A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,691
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Product details
Overview
NCV1117DT18T5 from onsemi is an automotive-grade, 1.8 V fixed-output, low-dropout linear voltage regulator in DPAK package, delivering ≥1.0 A output current with 1.2 V max dropout at 800 mA over temperature, ±1.0% output voltage accuracy, and integrated thermal shutdown, current limiting, and safe operating area protection - used for point-of-load regulation in automotive ECUs and industrial controllers.
For engineers reviewing the NCV1117DT18T5 datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at full load, thermal performance in DPAK with PCB copper heatsinking, AEC-Q100 qualification status, and compatibility with 20 V max input and no-minimum-load operation.
Technical Context
The NCV1117DT18T5 implements a bandgap-referenced error amplifier with internal trimming to maintain 1.8 V output within ±1.0% across −40°C to +125°C ambient. Its dropout behavior is characterized up to 800 mA with Vin–Vout ≤ 1.2 V, and it operates stably with ≥4.7 µF output capacitance and ESR between 33 mΩ (typ) and 2.2 Ω.
Internal protection includes foldback current limiting activated above ~1.5 A, thermal shutdown triggered at ~175°C junction temperature, and safe operating area compensation to prevent secondary breakdown during transient overload - all without requiring external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.8 V ±1.0% (trimmed reference ensures stable rail for 1.8 V logic and interface ICs) |
| Max Output Current | ≥1000 mA (supports microcontroller cores, CAN transceivers, and sensor signal chains) |
| Max Dropout Voltage | 1.2 V at 800 mA (enables regulation from 3.0 V input, critical for battery-backed systems) |
| Input Voltage Range | 2.9 V to 11.8 V (compatible with automotive 12 V nominal systems after pre-regulation) |
| Thermal Shutdown | ~175°C junction (self-protecting during sustained overload or poor heatsinking) |
| Ripple Rejection | 72 dB at 120 Hz (suppresses switching noise from upstream DC/DC converters) |
| Quiescent Current | 4.2 mA at Vin = 11.8 V (low static power draw for always-on automotive modules) |
Pinout & Package
DPAK (TO-252-3) package with exposed metal tab thermally and electrically connected to Pin 2 (Output); requires minimum 2.0 oz copper pad for thermal management per Figure 22.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Ground / Adjust | Reference node for internal bandgap; tied directly to system ground plane for regulation stability |
| 2 | Output | Main regulated 1.8 V supply; tab connection enables PCB copper as heatsink |
| 3 | Input | Unregulated input (up to 20 V); requires local 10 µF ceramic bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| No minimum load requirement | Regulates stably down to 0 mA output - simplifies design for intermittent-load systems |
| Integrated protection | Current limit, thermal shutdown, and SOA compensation eliminate need for external fault-handling circuitry |
| Pb-free DPAK package | RoHS-compliant surface-mount package with thermal performance optimized for industrial PCB layouts |
| 20 V absolute max input | Withstands load dump transients up to 20 V when paired with appropriate front-end clamping |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Powers 1.8 V core voltage of MCU and CAN FD transceiver in under-hood ECU exposed to −40°C to +125°C ambient. IC Role / Device Role / Timing Role: Primary LDO providing clean, stable 1.8 V rail with fast transient response to handle CPU burst loads. Use Value: ±1.0% accuracy and 72 dB ripple rejection ensure reliable digital operation despite alternator noise and load dump events. | Use Scenario: Supplies isolated 1.8 V logic for digital input conditioning circuits in DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Point-of-regulation LDO delivering low-noise power to FPGA configuration I/O banks and level-shifters. Use Value: No minimum load requirement allows rail to remain active during sleep modes without dummy loading. |
| Hard Disk Drive Controller Board | Battery-Powered Medical Sensor Node |
Use Scenario: Provides 1.8 V supply to SATA PHY and flash memory controller in enterprise storage subsystem. IC Role / Device Role / Timing Role: Post-regulator cleaning switching converter output; handles rapid load steps during data transfer bursts. Use Value: 1.2 V dropout enables efficient operation from 3.3 V intermediate rail, reducing heat generation in dense board layout. | Use Scenario: Regulates lithium-ion battery (3.0–4.2 V) down to 1.8 V for ultra-low-power biosensor ASIC and BLE radio. IC Role / Device Role / Timing Role: Main power source for mixed-signal SoC during active sensing and wireless transmission phases. Use Value: 4.2 mA quiescent current extends battery life in multi-week monitoring deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV1117DT18RKG | Same electrical specs and DPAK package; differs only in tape-and-reel quantity (2500 vs. 2500) and marking - functionally identical | No functional difference; both qualified to AEC-Q100 and rated for −40°C to +125°C | Select NCV1117DT18T5G for standard 2500-unit tape-and-reel; RKG variant is interchangeable in production |
| TLV1117-18CDR | 1.8 V fixed LDO in SOT-223; lower max current (800 mA), higher dropout (1.3 V @ 800 mA), not AEC-Q100 qualified | Suitable for commercial-grade industrial controls but not automotive under-hood use | Choose only if AEC-Q100 compliance is unnecessary and thermal budget permits SOT-223 footprint |
Compared with NCV1117DT18RKG, the NCV1117DT18T5G offers identical performance and qualification - differing only in packaging logistics; versus TLV1117-18CDR, it delivers higher current, lower dropout, and automotive qualification essential for safety-critical systems.
Availability
NCV1117DT18T5 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and medical sensor nodes requiring stable component supply with long-term lifecycle support and AEC-Q100 assurance.
Supply support for NCV1117DT18T5 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 for automotive, industrial, cloud, and IoT applications.
The NCV1117 series belongs to onsemi's automotive-qualified analog power portfolio, designed specifically for robust, high-reliability point-of-load regulation in harsh environments where AEC-Q100 compliance and thermal resilience are mandatory.
FAQ
What is the maximum input voltage rating for the NCV1117DT18T5?
The NCV1117DT18T5 has an absolute maximum input voltage of 20 V, as specified in the Maximum Ratings table. It is designed to operate continuously with input voltages from 2.9 V to 11.8 V for stable 1.8 V output regulation. This range supports automotive 12 V systems with pre-regulation and accommodates transient overvoltages up to 20 V without damage, provided external clamping is used for sustained >12 V conditions.
Does the NCV1117DT18T5 require a minimum load current to maintain regulation?
No, the NCV1117DT18T5 does not require a minimum load current to maintain regulation. As confirmed in the datasheet Features section and Electrical Characteristics table, fixed-output versions like the NCV1117DT18T5 regulate stably from 0 mA to 1.0 A output current. This eliminates the need for dummy loads and simplifies power design for low-power or intermittent-use applications such as automotive sleep-mode circuits.
Is the NCV1117DT18T5 AEC-Q100 qualified and PPAP capable?
Yes, the NCV1117DT18T5 is explicitly AEC-Q100 qualified and PPAP capable, as stated in the datasheet Features section and Ordering Information table (NCV prefix denotes automotive qualification). It meets stress test requirements for Grade 1 (−40°C to +125°C) operation and is approved for production release in automotive safety-critical systems, including engine control, body electronics, and ADAS modules.
What package type and thermal characteristics apply to the NCV1117DT18T5?
The NCV1117DT18T5 uses the DPAK (TO-252-3) package (Case 369C), with Pin 2 (Output) and the exposed metal tab electrically and thermally connected. Its thermal resistance is RJA = 67°C/W (minimum-size pad) and RJC = 6.0°C/W, enabling up to ~1.5 W dissipation with proper PCB copper heatsinking - verified in Figure 22 of the datasheet for 2.0 oz copper layouts.
How does the NCV1117DT18T5 compare to the standard NCP1117DT18T5 in terms of reliability and qualification?
The NCV1117DT18T5 is the automotive-qualified version of the NCP1117DT18T5, featuring stricter process controls, enhanced testing, and AEC-Q100 Grade 1 qualification (−40°C to +125°C). While both share identical electrical specifications, only the NCV prefix guarantees automotive site-specific change control, PPAP documentation, and extended reliability validation - making NCV1117DT18T5 mandatory for under-hood and safety-related applications.
NCV1117DT18T5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.2V @ 800mA
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
NCV1117DT18T5 FAQ
1.How can I place an order for NCV1117DT18T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV1117DT18T5 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 NCV1117DT18T5 reliable?
The price and inventory of NCV1117DT18T5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV1117DT18T5 is usually 5 days.
3.What payment methods are accepted for NCV1117DT18T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV1117DT18T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV1117DT18T5?
NCV1117DT18T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV1117DT18T5 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 NCV1117DT18T5?
For technical support, including NCV1117DT18T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV1117DT18T5 requirements.
6.How does Aetrix verify that NCV1117DT18T5 is sourced from the original manufacturer or authorized distributors?
All NCV1117DT18T5 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 NCV1117DT18T5 meets industry standards.
7.What is the process for return or replacement of NCV1117DT18T5?
All NCV1117DT18T5 units undergo pre-shipment inspection (PSI). If there is an issue with NCV1117DT18T5, 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 NCV1117DT18T5 part is unused and in its original packaging.
Return procedure for NCV1117DT18T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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