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onsemi NCP59151MN18TYG
- Part No.:
- NCP59151MN18TYG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCP59151MN18TYG.pdf
- Description:
- IC REG LINEAR 1.8V 1.5A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,750
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Product details
Overview
NCP59151MN18TYG from onsemi is a 1.5 A, very low-dropout (VLDO) linear regulator with fixed 1.8 V output, DFN8-4x4 package, 300 mV typical dropout at 1.5 A, and logic-compatible enable/flag pins - designed for FPGA core voltage regulation in industrial embedded systems requiring stable low-noise power under fast load transients.
For engineers reviewing the NCP59151MN18TYG datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, thermal design guidance, ceramic-capacitor stability confirmation, automotive-grade alternative options, and real-world use-case implementation details - all grounded in the official onsemi NCP59150 series datasheet Rev. 3 (June 2024).
Technical Context
The NCP59151MN18TYG implements a high-precision VLDO architecture with internal reference trimming, enabling ±1% output voltage accuracy over −40°C to +125°C. Its fast transient response stems from optimized error amplifier bandwidth and internal compensation compatible with ≥47 µF ceramic output capacitors.
It integrates CMOS/TTL-compatible enable input (1.8 V threshold), open-collector error flag (active-low, 95% VOUT fault detection), reverse output current protection, thermal shutdown, and current limiting - all operating within 2.24 V to 13.5 V input range while sustaining 1.5 A continuous output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±1% (DFN package, TJ = −40°C to +125°C) - ensures precise core rail compliance for modern low-voltage FPGAs and DSPs. |
| Max Output Current | 1.5 A continuous - supports high-current digital loads without external current boosting. |
| Typical Dropout | 300 mV at 1.5 A - enables operation from 2.1 V input (e.g., Li-ion battery post-regulation) while maintaining regulation. |
| Ground Current | 40–80 mA at 1.5 A load - minimizes total system power loss compared to legacy LDOs with >100 mA quiescent draw. |
| Input Voltage Range | 2.24 V to 13.5 V - accommodates wide-input industrial supplies and battery-backed systems with headroom for ripple. |
| PSRR | ≥60 dB at 1 kHz (VIN = 3.5 V, IOUT = 0.5 A) - suppresses switching noise from upstream DC-DC converters feeding sensitive analog/digital cores. |
| Thermal Resistance | RJA = 75°C/W (PCB with 500 mm² 2 oz Cu) - defines minimum copper area required to maintain TJ ≤ 125°C at full load in still air. |
Pinout & Package
Package: DFN8-4x4 (Case 488AF), 0.8 mm pitch, exposed thermal pad (EP) connected to GND - provides low thermal resistance and compact footprint for space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable Input | CMOS/TTL-compatible control: logic high ≥1.8 V enables regulator; logic low ≤0.8 V shuts down with 1–5 µA leakage - enables system-level power sequencing. |
| 2 (VIN) | Input Supply | Primary power input (2.24–13.5 V); must be bypassed with ≥1 µF capacitor placed ≤1 inch from pin - prevents instability from source impedance. |
| 3 (GND) | Ground Reference | Analog/digital ground return for internal circuitry and load current - requires low-inductance connection to EP and system ground plane. |
| 4 (VOUT) | Regulated Output | 1.8 V regulated output (1.5 A max); requires ≥47 µF ceramic capacitor at pin for stability and transient response - no ESR requirement. |
| 5 (FLG) | Error Flag | Open-collector output active-low when VOUT drops below 95% nominal (1.71 V); sinks up to 5 mA - signals fault to MCU or supervisor IC. |
| 6–7 (NC) | No Connect | Not internally bonded - must remain unconnected per datasheet; floating or tied to GND has no effect. |
| 8 (EP) | Exposed Pad | Thermal and electrical connection to GND; soldered to ≥500 mm² 2 oz Cu pour - critical for thermal performance and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Stable with ceramic capacitors | Guaranteed stability using ≥47 µF X5R/X7R MLCCs - eliminates need for electrolytic or tantalum, reducing board area and improving reliability. |
| Fast transient response | Load step recovery <500 µs (10 mA ↔ 1.5 A, COUT = 47 µF) - maintains voltage within ±3% during FPGA configuration bursts. |
| Reverse output current protection | Blocks reverse current flow when VOUT > VIN (up to 6.5 V differential) - prevents backup battery discharge through regulator during input loss. |
| Logic-level enable & flag | EN accepts 1.8 V logic high; FLG drives standard pull-up resistor - interfaces directly with 1.8 V/3.3 V microcontrollers without level shifters. |
| AEC-Q100 qualified variant available | NCV59151MN18TYG meets automotive Grade 1 (−40°C to +125°C) with PPAP support - enables drop-in qualification for industrial transport applications. |
Applications
| FPGA Core Power Supply | DSP I/O Rail Regulation |
|---|---|
Use Scenario: Providing clean 1.8 V supply to Xilinx Artix-7 FPGA bank VCCO during configuration and high-speed data transfer. IC Role / Device Role / Timing Role: Primary low-noise post-regulator for digital I/O banks, rejecting ripple from upstream 3.3 V buck converter. Use Value: PSRR >60 dB at 100 kHz ensures <1 mV ripple on VCCO, preventing timing violations and signal integrity degradation. |
Use Scenario: Regulating 1.8 V I/O supply for TI C66x DSPs in radar signal processing modules operating in extended temperature environments. IC Role / Device Role / Timing Role: High-current, thermally robust LDO delivering stable rail across −40°C to +105°C ambient. Use Value: RJA = 75°C/W with 500 mm² copper allows full 1.5 A load at 70°C ambient without derating - reduces thermal margin risk. |
| Battery-Powered Industrial Controller | Network Switch ASIC Biasing |
Use Scenario: Generating 1.8 V core voltage from single-cell Li-ion (3.0–4.2 V) in portable HMI controllers with battery backup. IC Role / Device Role / Timing Role: Low-dropout regulator enabling operation down to 2.1 V input while maintaining regulation during deep discharge. Use Value: 300 mV dropout at 1.5 A extends usable battery life by >12% versus 450 mV alternatives - delays brownout shutdown. |
Use Scenario: Supplying 1.8 V bias to Marvell Alaska PHY transceivers in 10/100/1000BASE-T switches with strict EMI limits. IC Role / Device Role / Timing Role: Low-noise, ceramic-stable LDO replacing discrete filtering stages to meet CISPR-22 Class B emissions. Use Value: Ground current <80 mA at full load reduces conducted noise coupling into adjacent Ethernet magnetics - simplifies EMC debug. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV59151MN18TYG | Automotive-grade variant: AEC-Q100 Grade 1 qualified, same electrical specs and pinout - differs only in traceability and process controls. | Required for automotive infotainment or ADAS ECUs needing PPAP documentation and extended temperature validation. | Select when functional safety (ISO 26262) or automotive qualification is mandatory - identical layout and firmware integration. |
| MIC29152-1.8WS | 1.5 A, 1.8 V fixed LDO in SOT-223; higher 450 mV dropout at 1.5 A; requires 10 µF min output capacitance with ESR ≥100 mΩ. | Suitable for cost-sensitive consumer designs where thermal density and ceramic compatibility are secondary concerns. | Choose only if DFN8 footprint is unavailable and thermal budget permits higher dropout - not recommended for battery or high-reliability use. |
Compared with NCP59151MN18TYG, NCV59151MN18TYG adds automotive qualification without altering performance or layout, while MIC29152-1.8WS trades ceramic stability and low dropout for lower cost and legacy packaging - making the NCP59151MN18TYG optimal for thermally constrained, high-reliability industrial designs.
Availability
NCP59151MN18TYG is available at Aetrix Electronics and suitable for FPGA power supplies, DSP I/O regulation, and battery-powered industrial controllers requiring stable component supply, long-term lifecycle assurance, and Pb-free compliance.
Supply support for NCP59151MN18TYG 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier focused on energy-efficient electronics, with leadership in power management, analog, and sensing technologies.
The NCP59150 series was developed specifically for high-current, low-noise point-of-load regulation in FPGA, DSP, and ASIC applications demanding fast transient response and ceramic capacitor compatibility - targeting industrial, computing, and automotive markets.
FAQ
What is the maximum input voltage rating for the NCP59151MN18TYG?
The NCP59151MN18TYG has an absolute maximum input voltage of 18 V, but its recommended operating range is 2.24 V to 13.5 V. Operation above 13.5 V is not guaranteed and may trigger internal protection circuits or degrade long-term reliability. The 18 V rating reflects short-duration surge tolerance, not continuous operation - always limit VIN to ≤13.5 V in final designs using NCP59151MN18TYG.
Does the NCP59151MN18TYG require an external resistor divider for output voltage setting?
No, the NCP59151MN18TYG is a fixed-output 1.8 V regulator and does not require an external resistor divider. Unlike the adjustable NCP59152 variants, it integrates internal feedback and reference circuitry - only input and output capacitors, enable, and flag pull-up components are needed. Adding resistors to the ADJ pin (which this part lacks) would damage or disable NCP59151MN18TYG functionality.
Can the NCP59151MN18TYG be used with a 10 µF ceramic output capacitor?
No - the NCP59151MN18TYG requires a minimum 47 µF ceramic output capacitor (X5R/X7R) for guaranteed stability and transient performance, as confirmed in the datasheet's Applications Information section. Using 10 µF violates the stability condition and risks oscillation or excessive overshoot during load steps. Always use ≥47 µF at the VOUT pin when designing with NCP59151MN18TYG.
What is the function of the FLG pin on the NCP59151MN18TYG?
The FLG pin on the NCP59151MN18TYG is an open-collector error flag that pulls low when the output voltage falls below 95% of nominal (1.71 V), indicating overcurrent, thermal shutdown, or input undervoltage. It sinks up to 5 mA and requires an external pull-up resistor (typically 10 kΩ to 3.3 V). This signal enables real-time fault monitoring in systems using NCP59151MN18TYG as a critical power rail.
Is the exposed pad (EP) on the NCP59151MN18TYG electrically connected?
Yes - the exposed pad (Pin 8) on the NCP59151MN18TYG is internally connected to GND and must be soldered to a dedicated GND copper pour. It serves dual roles: thermal dissipation (reducing RJA to 75°C/W) and low-inductance grounding. Leaving it unconnected or floating violates the thermal design requirements and may cause overheating or instability - proper EP soldering is mandatory for NCP59151MN18TYG operation.
NCP59151MN18TYG 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (4x4)
NCP59151MN18TYG FAQ
1.How can I place an order for NCP59151MN18TYG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP59151MN18TYG 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 NCP59151MN18TYG reliable?
The price and inventory of NCP59151MN18TYG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP59151MN18TYG is usually 5 days.
3.What payment methods are accepted for NCP59151MN18TYG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP59151MN18TYG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP59151MN18TYG?
NCP59151MN18TYG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP59151MN18TYG 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 NCP59151MN18TYG?
For technical support, including NCP59151MN18TYG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP59151MN18TYG requirements.
6.How does Aetrix verify that NCP59151MN18TYG is sourced from the original manufacturer or authorized distributors?
All NCP59151MN18TYG 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 NCP59151MN18TYG meets industry standards.
7.What is the process for return or replacement of NCP59151MN18TYG?
All NCP59151MN18TYG units undergo pre-shipment inspection (PSI). If there is an issue with NCP59151MN18TYG, 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 NCP59151MN18TYG part is unused and in its original packaging.
Return procedure for NCP59151MN18TYG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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