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onsemi NCP59151MN30TYG
- Part No.:
- NCP59151MN30TYG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCP59151MN30TYG.pdf
- Description:
- IC REG LINEAR 3V 1.5A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,329
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Product details
Overview
NCP59151MN30TYG from onsemi is a 3.0 V fixed-output, 1.5 A very low-dropout (VLDO) linear regulator in DFN8-4×4 package, featuring 300 mV typical dropout at full load, logic-compatible enable input, and open-collector error flag output - deployed for FPGA core voltage regulation, post-regulation in switching supplies, and industrial point-of-load applications.
For engineers reviewing the NCP59151MN30TYG datasheet, pinout, applications, or equivalent options, key selection considerations include its 3.0 V fixed output with ±2% accuracy over temperature, 125°C junction rating, ceramic-capacitor stability, thermal shutdown, reverse current protection, and compatibility with compact PCB layouts requiring high power density.
Technical Context
The NCP59151MN30TYG implements a PMOS pass transistor architecture enabling ultra-low dropout and fast transient response. Its internal reference is trimmed to 1.24 V for fixed-output variants, with feedback routed internally to the SENSE pin (Pin 7), eliminating external resistor networks.
It integrates CMOS/TTL-compatible EN control (1.8 V threshold), active-low open-drain FLG output with 95% VOUT fault detection threshold and 2% hysteresis, and robust protection including current limiting (2.0–3.0 A), thermal shutdown, and reverse output current blocking up to 6.5 V (VOUT–VIN).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±2% over −40°C to +125°C; enables direct replacement of legacy 3.0 V LDOs without external feedback components. |
| Max Output Current | 1.5 A continuous; supports high-current digital loads like FPGAs and DSPs without derating under typical thermal conditions. |
| Dropout Voltage | 300 mV typical at 1.5 A; allows operation with VIN as low as 3.3 V, critical for battery-powered or multi-rail systems. |
| Ground Current | 40–80 mA at 1.5 A load; minimizes total system power loss compared to older LDO architectures. |
| Input Voltage Range | 2.24 V to 13.5 V; accommodates wide-input industrial supplies while maintaining regulation down to near-VOUT. |
| PSRR @ 100 kHz | ≥60 dB at 0.5 A; suppresses high-frequency switching noise from upstream DC/DC converters in hybrid power architectures. |
| Thermal Shutdown | Active at TJ ≥125°C; protects against sustained overload or inadequate heatsinking in enclosed enclosures. |
Pinout & Package
DFN8-4×4 package (Case 488AF), 0.8 mm pitch, exposed thermal pad (EP) connected to GND; 2.0 oz copper area ≥500 mm² required for RJA = 75°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | EN | CMOS/TTL-compatible enable input; logic high ≥1.8 V enables regulation, low ≤0.8 V places device in microamp shutdown. |
| 2 | VIN | Main input supply rail; accepts 2.24–13.5 V and powers both internal circuitry and output load. |
| 3 | GND | Power ground reference; ties to EP for optimal thermal conduction and noise immunity. |
| 4 | VOUT | Regulated 3.0 V output; capable of sourcing 1.5 A with <1.0% load regulation across full current range. |
| 5 | NC | No internal connection; must be left floating or tied to GND per layout best practices. |
| 6 | FLG | Open-collector error flag; sinks up to 5 mA when VOUT drops below 95% of nominal (2.85 V), indicating fault condition. |
| 7 | SENSE | Internal feedback node for fixed-output version; connects directly to VOUT for precision regulation without external resistors. |
| 8 | NC | No internal connection; must be left floating or tied to GND per layout best practices. |
Key Features
| Feature | Design Value |
|---|---|
| Ceramic capacitor stability | Stable with ≥47 µF X7R/X5R ceramic output capacitor; eliminates need for electrolytic or tantalum, reducing board area and improving reliability. |
| Fast transient response | Sub-500 µs startup time and <200 µs/V output voltage slew rate; maintains tight regulation during FPGA/DSP dynamic load steps. |
| Reverse output current protection | Blocks reverse current flow when VOUT > VIN (up to 6.5 V differential); prevents backup battery discharge in dual-supply systems. |
| Low ground current | 60 mA typical at 1.5 A load; improves efficiency in high-current, low-VIN applications where IGND × VIN dominates losses. |
| AEC-Q100 qualified variant available | NCV59151MN30TYG meets automotive Grade 1 (−40°C to +125°C) with PPAP capability; same pinout and electrical specs as NCP59151MN30TYG. |
Applications
| FPGA Core Power Supply | Industrial Point-of-Load Regulation |
|---|---|
|
Use Scenario: Providing clean, tightly regulated 3.0 V to FPGA I/O banks or auxiliary logic rails in programmable logic controllers (PLCs) and motor drives. IC Role / Device Role / Timing Role: Final-stage linear regulator delivering low-noise, low-ripple power after a primary buck converter; handles rapid current transients during configuration and state changes. Use Value: 60 dB PSRR at 100 kHz and fast transient response prevent logic errors caused by switching noise coupling into sensitive I/O domains. |
Use Scenario: Local regulation for microcontrollers, sensors, and analog front-ends in factory automation equipment operating from unregulated 12 V or 24 V bus rails. IC Role / Device Role / Timing Role: High-accuracy, thermally robust LDO ensuring stable MCU clocking and ADC reference integrity across ambient temperatures from −40°C to +85°C. Use Value: ±2% output accuracy over full temperature range and thermal shutdown guarantee functional safety compliance without external monitoring circuitry. |
| Switching Supply Post-Regulation | Battery-Powered Equipment |
|
Use Scenario: Noise filtering and ripple reduction stage following a high-efficiency DC/DC converter in networking switches and telecom line cards. IC Role / Device Role / Timing Role: Low-noise linear post-regulator suppressing high-frequency switching artifacts that degrade SERDES signal integrity and jitter performance. Use Value: 300 mV dropout enables use with minimal VIN headroom (e.g., 3.3 V input), preserving overall system efficiency while achieving <10 mVpp output ripple. |
Use Scenario: Main 3.0 V supply for portable test instruments, handheld meters, and medical monitors powered by Li-ion or 3-cell alkaline batteries. IC Role / Device Role / Timing Role: Primary voltage regulator managing battery discharge curve from 4.2 V down to 3.3 V while maintaining constant 3.0 V output until cutoff. Use Value: Operation down to 2.24 V input ensures maximum usable battery capacity; reverse current protection prevents parasitic drain when main supply is off. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC29150-3.0WT | Same 3.0 V/1.5 A rating but higher 450 mV dropout; requires larger output capacitor (100 µF min) and lacks integrated error flag. | Legacy design support only; not recommended for new designs due to inferior transient response and no AEC-Q100 option. | Select NCP59151MN30TYG for lower dropout, faster response, and automotive-grade availability. |
| TLD1113-30-1 | 3.0 V/1.5 A automotive LDO with integrated watchdog timer; higher quiescent current (120 µA vs. 5 µA shutdown) and no enable pin. | Targeted at ASIL-B safety-critical subsystems; adds functional safety features unnecessary for general-purpose regulation. | Choose NCP59151MN30TYG when enable control, error flag, and minimal BOM count are prioritized over watchdog functionality. |
Compared with MIC29150-3.0WT and TLD1113-30-1, the NCP59151MN30TYG delivers superior power efficiency via lower dropout and ground current, offers flexible system-level fault signaling with FLG, and provides seamless migration path to automotive-grade NCV59151MN30TYG without layout change.
Availability
NCP59151MN30TYG is available at Aetrix Electronics and suitable for FPGA power supplies, industrial PLCs, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and Pb-free RoHS-compliant packaging.
Supply support for NCP59151MN30TYG 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 specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP59150 series was designed specifically for high-current, low-noise point-of-load regulation in space-constrained systems - emphasizing fast transient response, ceramic capacitor compatibility, and robust protection for mission-critical embedded applications.
FAQ
What is the minimum input voltage required for NCP59151MN30TYG to regulate 3.0 V output?
The NCP59151MN30TYG requires a minimum input voltage of 2.24 V to operate, but to maintain regulation at full 1.5 A load, VIN must exceed VOUT by at least the dropout voltage - 300 mV typical, so 3.3 V is recommended. Below 3.3 V, output current capability decreases progressively per the dropout vs. load curve in Figure 4 of the datasheet.
Does NCP59151MN30TYG require an external feedback resistor network?
No, the NCP59151MN30TYG is a fixed-output 3.0 V regulator with internal feedback connected to the SENSE pin (Pin 7). Unlike adjustable versions such as NCP59152, it does not require external resistors - simplifying layout and improving accuracy by eliminating resistor tolerance and thermal drift effects.
How is thermal performance affected when using NCP59151MN30TYG on a standard 2-layer PCB?
On a standard 2-layer PCB with 500 mm² of 2.0 oz copper connected to the exposed pad, the NCP59151MN30TYG achieves RJA = 75°C/W. At 1.5 A and 3.3 V input, power dissipation is ~450 mW, resulting in ~34°C rise above ambient - well within the 125°C junction limit. Adding thermal vias under the EP further improves performance.
Can NCP59151MN30TYG be used in automotive applications?
Yes - the pin-compatible NCV59151MN30TYG variant is AEC-Q100 Grade 1 qualified (−40°C to +125°C) and PPAP capable. While NCP59151MN30TYG itself is not automotive-qualified, its identical electrical specs and footprint allow direct substitution during prototyping, with seamless transition to NCV59151MN30TYG for production.
What is the purpose of the NC pins on NCP59151MN30TYG?
Pins 5 and 8 of the NCP59151MN30TYG are No-Connect terminals with no internal bond wire or circuit connection. They may be left floating or tied to GND for mechanical stability and improved thermal conduction - but must never be connected to any active signal or voltage source to avoid unintended coupling or ESD paths.
NCP59151MN30TYG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 13.5V
- Voltage - Output (Min/Fixed):
- 3V
- 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)
NCP59151MN30TYG FAQ
1.How can I place an order for NCP59151MN30TYG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP59151MN30TYG 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 NCP59151MN30TYG reliable?
The price and inventory of NCP59151MN30TYG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP59151MN30TYG is usually 5 days.
3.What payment methods are accepted for NCP59151MN30TYG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP59151MN30TYG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP59151MN30TYG?
NCP59151MN30TYG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP59151MN30TYG 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 NCP59151MN30TYG?
For technical support, including NCP59151MN30TYG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP59151MN30TYG requirements.
6.How does Aetrix verify that NCP59151MN30TYG is sourced from the original manufacturer or authorized distributors?
All NCP59151MN30TYG 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 NCP59151MN30TYG meets industry standards.
7.What is the process for return or replacement of NCP59151MN30TYG?
All NCP59151MN30TYG units undergo pre-shipment inspection (PSI). If there is an issue with NCP59151MN30TYG, 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 NCP59151MN30TYG part is unused and in its original packaging.
Return procedure for NCP59151MN30TYG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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