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onsemi NCP59151MN25TYG
- Part No.:
- NCP59151MN25TYG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCP59151MN25TYG.pdf
- Description:
- IC REG LINEAR 2.5V 1.5A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,598
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Product details
Overview
NCP59151MN25TYG from onsemi is a fixed-output 2.5 V, 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 - designed for FPGA, DSP, and post-regulation in servers and networking equipment.
For engineers reviewing the NCP59151MN25TYG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 1.5 A, ground current vs. load, thermal resistance (RJA = 75°C/W), error flag threshold accuracy (±2% hysteresis), and compatibility with ceramic output capacitors ≥47 µF.
Technical Context
The NCP59151MN25TYG implements a high-precision bandgap reference and fast-transient-response error amplifier to maintain ±2% output voltage accuracy across −40°C to +125°C and 10 mA–1.5 A load range. Its internal protection includes thermal shutdown, current limiting (2.0–3.0 A), and reverse output current blocking when EN is low.
It operates with input voltages from 2.24 V to 13.5 V and supports stable regulation using only ceramic output capacitance (≥47 µF). The error flag (FLG) activates low when VOUT drops below 95% of nominal (2.375 V), with 2% hysteresis and guaranteed 1 mA sink capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% over temperature and load - ensures stable core supply for 2.5 V FPGA I/O banks. |
| Max Output Current | 1.5 A continuous - sufficient for powering multiple logic blocks or mid-power ASICs. |
| Typical Dropout Voltage | 300 mV at 1.5 A - enables operation with VIN as low as 2.8 V, critical for battery-backed or low-headroom systems. |
| Ground Current | 40–80 mA at 1.5 A load - directly impacts system efficiency and thermal design in high-current LDO applications. |
| Error Flag Threshold | 95% VOUT (2.375 V) with 2% hysteresis - provides reliable undervoltage detection without chatter during transients. |
| Enable Input Logic Levels | EN high ≥1.8 V (enable), ≤0.8 V (shutdown) - compatible with 1.8 V/3.3 V GPIO without level shifting. |
| Thermal Resistance | RJA = 75°C/W (DFN8, 500 mm² copper) - defines maximum power dissipation (≤1.67 W) before thermal shutdown at 25°C ambient. |
Pinout & Package
Package: DFN8-4×4 (Case 488AF), 0.8 mm pitch, exposed thermal pad connected to GND. Pin 1 marked by microdot or corner chamfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | EN | CMOS/TTL-compatible enable input; high = active, low = shutdown with <5 µA quiescent current. |
| 2 | VIN | Main input supply (2.24–13.5 V); supplies internal circuitry and output load current. |
| 3 | GND | Power and signal ground reference; tied internally to exposed thermal pad. |
| 4 | VOUT | Regulated 2.5 V output; capable of sourcing up to 1.5 A with <1% load regulation. |
| 5 | FLG | Open-collector error flag; sinks ≥1 mA when VOUT < 2.375 V - requires external pull-up resistor. |
| 6–7 | NC | No internal connection; must be left floating or grounded per layout best practices. |
| 8 | EP (Exposed Pad) | Thermal interface to PCB ground plane; essential for achieving RJA = 75°C/W rating. |
Key Features
| Feature | Design Value |
|---|---|
| Stable with ceramic output capacitors | Guaranteed stability with ≥47 µF X5R/X7R ceramic - eliminates need for electrolytic or tantalum, reducing board area and improving reliability. |
| Fast transient response | Load step recovery time <500 µs (10 mA ↔ 1.5 A, COUT = 47 µF) - maintains voltage integrity during FPGA configuration bursts. |
| Reverse output current protection | Blocks reverse current flow when VOUT > VIN (up to 6.5 V differential) during shutdown - prevents backup battery discharge in fail-safe systems. |
| Low ground current at full load | 60 mA typical at 1.5 A output - improves efficiency vs. legacy LDOs (e.g., MIC29150 draws ~100 mA), reducing thermal load. |
| AEC-Q100 qualified variant available | NCV59151MN25TYG meets automotive Grade 1 (−40°C to +125°C) with PPAP support - enables drop-in qualification path for industrial designs. |
Applications
| FPGA Core & I/O Power | Server Point-of-Load Regulation |
|---|---|
Use Scenario: Providing clean, low-noise 2.5 V supply to FPGA I/O banks during high-speed data transfer and configuration. IC Role / Device Role / Timing Role: Post-regulator stabilizing switched-mode supply ripple; delivers fast transient response to handle dynamic current spikes. Use Value: Maintains VI/O within ±2.5% under 1.5 A load steps, preventing setup/hold violations in SERDES interfaces. |
Use Scenario: Final-stage regulation for memory buffers or management controllers in 1U rack servers with tight thermal envelopes. IC Role / Device Role / Timing Role: Low-dropout linear regulator ensuring stable 2.5 V rail despite upstream DC-DC converter ripple and line variation. Use Value: Enables use of lower-cost, higher-VIN intermediate supplies while meeting strict 2.5 V tolerance requirements of DDR memory subsystems. |
| Battery Backup Supply | Industrial PLC I/O Module |
Use Scenario: Maintaining real-time clock and SRAM retention during main power loss using coin-cell or supercapacitor backup. IC Role / Device Role / Timing Role: Reverse-current-protected LDO that accepts VOUT-backdrive without sinking current from backup source. Use Value: Extends backup runtime by eliminating 30 µA feedback divider leakage seen in fixed-voltage competitors. |
Use Scenario: Powering isolated analog front-end circuits and digital logic in programmable logic controller modules operating in harsh environments. IC Role / Device Role / Timing Role: High-reliability, thermally robust LDO delivering 2.5 V to ADC references and microcontroller peripherals. Use Value: Withstands −40°C to +125°C junction temperature and includes thermal shutdown, enabling uncooled operation in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC29150-2.5WS | Higher dropout (450 mV typ. @ 1.5 A), larger SOT-223 package (RJA ≈ 60°C/W), no error flag. | Lacks fault monitoring; less suitable for safety-critical or autonomous shutdown systems. | Choose if footprint compatibility with legacy MIC29xx designs is required and flag functionality is unnecessary. |
| TPS7A4701RGWR | Lower noise (4 µVRMS), adjustable output, but lower max current (1 A) and higher cost. | Better for precision analog rails (e.g., ADC references), not for high-current digital loads. | Select when ultra-low noise and tight load regulation (<0.01%/A) outweigh current capability and cost constraints. |
Compared with MIC29150-2.5WS, NCP59151MN25TYG offers 33% lower dropout and integrated fault signaling; versus TPS7A4701RGWR, it delivers 50% more output current in a smaller DFN8 package but trades off noise performance for cost and power density.
Availability
NCP59151MN25TYG is available at Aetrix Electronics and suitable for FPGA power supplies, server point-of-load regulation, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP59151MN25TYG 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, and cloud infrastructure markets.
The NCP59150 series was developed to replace legacy high-current LDOs in space-constrained, thermally demanding applications - emphasizing low dropout, fast transient response, and robust protection for FPGA, DSP, and networking SoC power domains.
FAQ
What is the minimum input voltage required for NCP59151MN25TYG to regulate 2.5 V output?
The NCP59151MN25TYG requires a minimum input voltage of 2.24 V per its Recommended Operating Conditions. However, to maintain regulation under full 1.5 A load, VIN must exceed VOUT by at least the dropout voltage - typically 300 mV, so VIN ≥ 2.8 V is recommended for reliable operation at rated current. Below this, output voltage will droop proportionally.
Does NCP59151MN25TYG require an external capacitor on the FLG pin?
No, the NCP59151MN25TYG does not require an external capacitor on the FLG pin. The FLG output is an open-collector structure that sinks current when active (VOUT < 2.375 V); it only needs an external pull-up resistor (typically 10 kΩ to VIN or VOUT) to generate a logic-high signal when inactive. Adding capacitance would slow flag response and is not specified or recommended.
Can NCP59151MN25TYG be used with a 47 µF ceramic output capacitor?
Yes - the NCP59151MN25TYG is explicitly designed and characterized for stability with ceramic output capacitors ≥47 µF, as confirmed in the Applications Information section and Typical Characteristics. Using X5R or X7R dielectrics with appropriate voltage rating (≥6.3 V) ensures optimal transient response and PSRR performance without risk of oscillation.
What is the thermal performance difference between DFN8 and D2PAK packages for NCP59151MN25TYG?
The DFN8 package (NCP59151MN25TYG) has RJA = 75°C/W with 500 mm² copper, while the D2PAK-5 version (NCP59151DS25R4G) achieves RJA = 52°C/W with 100 mm² copper. Though D2PAK offers better thermal resistance, the DFN8 provides superior power density and lower profile - making it preferred for space-constrained boards where PCB copper area can be optimized for heat spreading.
Is NCP59151MN25TYG pin-compatible with MIC29150-2.5WS?
No, NCP59151MN25TYG is not pin-compatible with MIC29150-2.5WS. The NCP59151MN25TYG uses an 8-pin DFN layout (EN/VIN/GND/VOUT/FLG/NC/NC/EP), whereas MIC29150-2.5WS uses a 3-pin SOT-223 (VIN/GND/VOUT) with no enable or flag pins. Direct replacement requires PCB redesign and firmware adaptation for flag monitoring.
NCP59151MN25TYG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 13.5V
- Voltage - Output (Min/Fixed):
- 2.5V
- 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)
NCP59151MN25TYG FAQ
1.How can I place an order for NCP59151MN25TYG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP59151MN25TYG 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 NCP59151MN25TYG reliable?
The price and inventory of NCP59151MN25TYG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP59151MN25TYG is usually 5 days.
3.What payment methods are accepted for NCP59151MN25TYG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP59151MN25TYG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP59151MN25TYG?
NCP59151MN25TYG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP59151MN25TYG 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 NCP59151MN25TYG?
For technical support, including NCP59151MN25TYG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP59151MN25TYG requirements.
6.How does Aetrix verify that NCP59151MN25TYG is sourced from the original manufacturer or authorized distributors?
All NCP59151MN25TYG 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 NCP59151MN25TYG meets industry standards.
7.What is the process for return or replacement of NCP59151MN25TYG?
All NCP59151MN25TYG units undergo pre-shipment inspection (PSI). If there is an issue with NCP59151MN25TYG, 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 NCP59151MN25TYG part is unused and in its original packaging.
Return procedure for NCP59151MN25TYG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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