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onsemi NCV59151MN18TYG
- Part No.:
- NCV59151MN18TYG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCV59151MN18TYG.pdf
- Description:
- IC REG LINEAR 1.8V 1.5A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
NCV59151MN18TYG from onsemi is an automotive-grade, 1.5 A very low-dropout (VLDO) linear regulator with fixed 1.8 V output, DFN8−4×4 package, 300 mV typical dropout at 1.5 A, ±2.5% output voltage accuracy over −40°C to +125°C, and integrated error flag and enable pins. It delivers stable power to FPGA core supplies in automotive ADAS domain controllers.
For engineers reviewing the NCV59151MN18TYG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout performance at 1.5 A load, AEC−Q100 qualification, thermal resistance (RJA = 75°C/W), ceramic capacitor stability, and fault reporting via open-collector FLG pin.
Technical Context
The NCV59151MN18TYG implements a high-precision bandgap reference and fast-transient-response error amplifier driving a PMOS pass transistor. Its internal architecture enables stable regulation with ≥47 µF ceramic output capacitance and supports logic-level enable control with TTL/CMOS compatibility.
It integrates reverse output current protection, thermal shutdown, and foldback current limiting. The error flag monitors VOUT with 95% nominal threshold and 2% hysteresis, asserting low when output drops below 1.71 V (95% of 1.8 V) under load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±2.5% over full temperature and load range - ensures compliance with FPGA core supply tolerance requirements. |
| Max Output Current | 1.5 A continuous - sufficient for powering multi-core automotive SoCs and FPGAs. |
| Dropout Voltage | 300 mV typical at 1.5 A - enables operation from 2.1 V input, critical for post-regulation after buck converters. |
| Ground Current | 40–80 mA at 1.5 A load - low quiescent current preserves system efficiency in always-on domains. |
| Enable Threshold | 1.8 V min to enable, 0.8 V max to disable - compatible with 1.8 V/3.3 V GPIO without level shifting. |
| Error Flag Threshold | 95% of nominal VOUT (1.71 V) with 2% hysteresis - provides robust undervoltage detection with noise immunity. |
| Thermal Shutdown | Activates at TJ = +125°C - protects device during sustained overload or poor PCB heatsinking. |
| Input Voltage Range | 2.24 V to 13.5 V - supports wide automotive battery transients and intermediate rail generation. |
Pinout & Package
NCV59151MN18TYG uses the DFN8−4×4 mm, 0.8 mm pitch, exposed pad (EP) package (Case 488AF). The exposed pad must be soldered to a GND plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; accepts up to 13.5 V DC; requires local 1 µF ceramic bypass. |
| 2 | EN | CMOS/TTL-compatible enable input; high = active, low = shutdown (ISHDN ≤ 5 µA). |
| 3 | GND | Power ground reference; connects internally to exposed pad; must be low-impedance PCB plane. |
| 4 | VOUT | Regulated 1.8 V output; capable of sourcing 1.5 A; requires ≥47 µF ceramic output capacitor. |
| 5 | FLG | Open-collector error flag; sinks up to 5 mA when VOUT < 1.71 V; requires external pull-up resistor. |
| 6–7 | NC | No internal connection; electrically isolated; may be left unconnected or tied to GND for mechanical stability. |
| 8 | EP | Exposed thermal pad; must be soldered to GND plane for RJA = 75°C/W and current return path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q100 qualified | Qualified for automotive applications (Grade 1: −40°C to +125°C junction), PPAP-capable, with unique site and control change controls. |
| Ceramic capacitor stable | Stable with ≥47 µF X5R/X7R ceramic output capacitors - eliminates need for costly tantalum or electrolytic types. |
| Fast transient response | Load step recovery within microseconds (per Figure 22); maintains <±30 mV deviation at 1.5 A step - critical for digital core supply integrity. |
| Reverse output current protection | Blocks reverse current flow when VOUT > VIN (up to 6.5 V differential) - prevents backup battery discharge in fail-safe systems. |
| Integrated protection suite | Combines thermal shutdown, current limiting (2.0–3.0 A), and reverse current blocking - reduces external protection component count. |
| Low ground current | 60 mA typical at 1.5 A load - improves overall system efficiency versus legacy LDOs with >100 mA IGND. |
Applications
| Automotive ADAS Domain Controller Core Supply | FPGA I/O Bank Regulation |
|---|---|
Use Scenario: Powers 1.8 V I/O banks of Xilinx Zynq UltraScale+ MPSoC in radar ECU, where input rail varies from 2.8 V–12 V due to buck converter ripple and transients. IC Role / Device Role / Timing Role: Post-regulator providing clean, low-noise, fault-monitored 1.8 V to FPGA I/O banks with tight voltage tolerance. Use Value: FLG pin alerts system controller of undervoltage events before I/O corruption occurs; 300 mV dropout allows operation even during 12 V bus sag to 2.1 V. | Use Scenario: Supplies 1.8 V to configurable logic blocks in automotive infotainment SoC, requiring fast load transient response during video frame bursts. IC Role / Device Role / Timing Role: Low-noise, high-current LDO delivering stable 1.8 V with <500 µs startup time and minimal overshoot. Use Value: Fast transient response (<±25 mV deviation at 1 A/µs load step) prevents timing violations in high-speed SerDes interfaces. |
| Automotive Telematics LTE Modem Power | Automotive Camera Sensor Interface Supply |
Use Scenario: Regulates 1.8 V for LTE modem baseband processor in connected vehicle telematics unit, operating across cold-crank (6.5 V) to load-dump (18 V) conditions. IC Role / Device Role / Timing Role: Primary 1.8 V supply with enable control synchronized to modem sleep/wake cycles. Use Value: EN pin enables zero-current shutdown (≤5 µA), extending battery life during modem idle; 13.5 V max input withstands ISO 7637-2 pulse 5a. | Use Scenario: Powers MIPI CSI-2 interface circuitry of 8 MP automotive camera module, where EMI-sensitive analog front-end demands ultra-low noise. IC Role / Device Role / Timing Role: Low-PSRR, low-noise LDO supplying clean 1.8 V to image sensor clock and data lanes. Use Value: PSRR >60 dB at 100 kHz (Figure 17) suppresses switching noise from adjacent DC/DC converters, reducing image artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170ADP180T2G | 1.5 A, 1.8 V fixed, DFN8, but higher 450 mV dropout at 1.5 A and no error flag. | Lacks FLG pin; unsuitable where fault monitoring is required for ASIL-B diagnostics. | Select NCV59151MN18TYG when diagnostic coverage (e.g., ISO 26262 FMEDA) mandates output voltage monitoring. |
| TLD1117AV18 | 1.5 A, 1.8 V fixed, TO-252, 1.1 V dropout at 1.5 A, AEC-Q100 Grade 1, no enable or flag. | Higher dropout limits use in low-input-voltage scenarios; larger package increases board area. | Choose NCV59151MN18TYG for space-constrained layouts and systems needing <300 mV dropout with diagnostics. |
Compared with NCV8170ADP180T2G and TLD1117AV18, NCV59151MN18TYG uniquely combines automotive qualification, sub-300 mV dropout, integrated enable/flag, and DFN8 footprint-enabling compact, diagnostic-compliant 1.8 V core regulation where input headroom and functional safety are critical.
Availability
NCV59151MN18TYG is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, FPGA-based telematics modules, and camera sensor interface designs requiring stable component supply, AEC−Q100 compliance, and long-term production continuity.
Supply support for NCV59151MN18TYG 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, with leadership in automotive, industrial, cloud, and IoT markets.
The NCV59150 series was designed specifically for automotive power management applications demanding AEC−Q100 qualification, fast transient response, and integrated diagnostics - targeting FPGA, SoC, and sensor interface rails in ADAS and body electronics.
FAQ
What is the maximum input voltage rating for NCV59151MN18TYG?
The NCV59151MN18TYG has an absolute maximum input voltage of 18 V, but its recommended operating input voltage range is 2.24 V to 13.5 V. Operation above 13.5 V is not guaranteed and may trigger internal protection or degrade reliability. This 13.5 V limit ensures safe operation during automotive load-dump transients while maintaining specified electrical performance for the NCV59151MN18TYG.
Does NCV59151MN18TYG require an external resistor divider for output voltage setting?
No, the NCV59151MN18TYG is a fixed-output 1.8 V regulator and does not require an external resistor divider. Unlike the adjustable NCP59152 variant, this part integrates the feedback network internally. The ADJ pin is absent; instead, the NCV59151MN18TYG uses dedicated VOUT and FLG pins in its DFN8 package, simplifying layout and reducing BOM count for 1.8 V applications.
How is thermal performance managed in NCV59151MN18TYG's DFN8 package?
The NCV59151MN18TYG uses a thermally enhanced DFN8−4×4 mm package with an exposed pad (EP) that must be soldered to a PCB GND plane. With 500 mm² of 2 oz copper, its junction-to-ambient thermal resistance is 75°C/W. Proper EP connection reduces die temperature rise by up to 40°C at 1.5 A, preventing premature thermal shutdown and ensuring reliable operation in automotive under-hood environments for the NCV59151MN18TYG.
Can NCV59151MN18TYG be used without an output capacitor?
No, the NCV59151MN18TYG requires a minimum 47 µF ceramic output capacitor for stability and transient response. Omitting it causes oscillation, excessive output ripple, and potential damage during load steps. The datasheet specifies X5R/X7R dielectrics with low ESR; tantalum or aluminum electrolytics are not recommended. This requirement is fundamental to the internal compensation design of the NCV59151MN18TYG and applies across all operating conditions.
What fault conditions trigger the FLG pin on NCV59151MN18TYG?
The FLG pin on NCV59151MN18TYG asserts low (active) when the output voltage falls below 95% of nominal (i.e., <1.71 V for 1.8 V output), with 2% hysteresis to prevent chatter. This occurs during overcurrent, thermal shutdown, or severe line/load transients. FLG remains active until VOUT recovers above 97% (1.746 V). It is an open-collector output rated for 5 mA sink, requiring an external pull-up resistor - a core diagnostic feature of the NCV59151MN18TYG.
NCV59151MN18TYG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 13.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 1.5A
- Current - Output:
- 1.5A
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Error Flag
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (4x4)
NCV59151MN18TYG FAQ
1.How can I place an order for NCV59151MN18TYG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV59151MN18TYG 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 NCV59151MN18TYG reliable?
The price and inventory of NCV59151MN18TYG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV59151MN18TYG is usually 5 days.
3.What payment methods are accepted for NCV59151MN18TYG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV59151MN18TYG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV59151MN18TYG?
NCV59151MN18TYG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV59151MN18TYG 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 NCV59151MN18TYG?
For technical support, including NCV59151MN18TYG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV59151MN18TYG requirements.
6.How does Aetrix verify that NCV59151MN18TYG is sourced from the original manufacturer or authorized distributors?
All NCV59151MN18TYG 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 NCV59151MN18TYG meets industry standards.
7.What is the process for return or replacement of NCV59151MN18TYG?
All NCV59151MN18TYG units undergo pre-shipment inspection (PSI). If there is an issue with NCV59151MN18TYG, 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 NCV59151MN18TYG part is unused and in its original packaging.
Return procedure for NCV59151MN18TYG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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