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onsemi NCP59151DS28R4G
- Part No.:
- NCP59151DS28R4G
- Manufacturer:
- onsemi
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
NCP59151DS28R4G.pdf
- Description:
- IC REG LINEAR 2.8V 1.5A D2PAK-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,242
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Product details
Overview
NCP59151DS28R4G from onsemi is a 2.8 V fixed-output, 1.5 A very low-dropout (VLDO) linear regulator in D2PAK-5 package, featuring 300 mV typical dropout at full load, logic-compatible enable input, and open-collector error flag output - designed for FPGA, DSP, and post-regulation applications requiring stable low-noise 2.8 V supply.
For engineers reviewing the NCP59151DS28R4G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, thermal performance data, real-world transient response behavior, and validated alternative options for point-of-load regulation in industrial and automotive systems.
Technical Context
The NCP59151DS28R4G implements a PMOS pass transistor architecture enabling ultra-low dropout voltage and fast transient response. Its internal reference is trimmed to ±1.5% over temperature, and it operates with ceramic output capacitors ≥47 µF for stability and noise suppression.
It integrates CMOS/TTL-compatible enable control (1.8 V threshold), reverse output current protection during shutdown, and thermal shutdown at +125°C junction temperature. The error flag asserts low when output drops below 95% of nominal (2.66 V), with 2% hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2.5% over −40°C to +125°C; supports precision logic core and I/O rails. |
| Max Output Current | 1.5 A continuous; sufficient for mid-power FPGA I/O banks or DSP subsystems. |
| Dropout Voltage | 300 mV typical at 1.5 A; enables operation with VIN as low as 3.1 V for 2.8 V output. |
| Ground Current | 40–80 mA at 1.5 A load; low quiescent current preserves efficiency in battery-backed systems. |
| PSRR @ 100 kHz | ≥60 dB at 0.5 A; suppresses switching noise from upstream DC/DC converters. |
| Enable Threshold | 1.8 V high-enable; compatible with 1.8 V/3.3 V logic without level-shifting. |
| Error Flag Accuracy | 95% VOUT low-threshold with 2% hysteresis; ensures reliable undervoltage detection without chatter. |
Pinout & Package
D2PAK-5 (Case 936A) thermally enhanced power package with exposed tab connected to GND; suitable for high-current PCB layouts with copper pour heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (TAB) | Thermal Pad / GND | Exposed copper tab electrically tied to GND; primary heat path to PCB copper area. |
| 2 | EN | CMOS/TTL-compatible enable input; <0.8 V disables regulator, drawing ≤5 µA. |
| 3 | VIN | Main input supply (2.24–13.5 V); powers internal circuitry and load current path. |
| 4 | GND | Power ground reference; connects internally to exposed tab and all substrate nodes. |
| 5 | VOUT | Regulated 2.8 V output; capable of sourcing up to 1.5 A with <1% load regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Stable with ceramic capacitors | Guaranteed stability using ≥47 µF X5R/X7R ceramic output capacitor - eliminates electrolytic bulk caps and saves board space. |
| Fast transient response | Sub-500 µs startup time and minimal output deviation (<50 mV) under 1 A step load - critical for FPGA configuration sequencing. |
| Reverse output current protection | Blocks reverse current flow when VIN = 0 V and VOUT > 0 V (e.g., backup battery scenarios), preventing unintended discharge. |
| Integrated fault protection | Combines thermal shutdown, current limiting (2.0–3.0 A), and error flag reporting - reduces need for external supervision ICs. |
| Low-noise operation | Typical output noise <40 µVRMS (10 Hz–100 kHz); avoids clock jitter in sensitive analog or RF subsystems. |
Applications
| FPGA Core & I/O Power | DSP Signal Processing Supply |
|---|---|
Use Scenario: Providing clean, regulated 2.8 V to FPGA I/O banks during dynamic switching and configuration. IC Role / Device Role / Timing Role: Point-of-load (POL) LDO delivering low-noise, fast-response voltage for interface logic and transceivers. Use Value: Maintains signal integrity with <50 mV load transient deviation and >60 dB PSRR at 100 kHz, reducing bit errors in high-speed SerDes links. |
Use Scenario: Powering TI C6000 or Analog Devices SHARC DSP cores requiring stable 2.8 V under variable compute loads. IC Role / Device Role / Timing Role: Low-dropout post-regulator following a buck converter, ensuring tight voltage tolerance during burst-mode processing. Use Value: 300 mV dropout enables use with 3.3 V intermediate bus, while ±2.5% accuracy meets JEDEC JESD8-12B I/O rail requirements. |
| Industrial PLC I/O Module | Automotive Infotainment SoC Rail |
Use Scenario: Regulating 2.8 V for isolated digital I/O drivers and ADC reference buffers in programmable logic controllers. IC Role / Device Role / Timing Role: Precision analog/digital supply LDO with error flag monitoring for system-level fault logging. Use Value: Open-collector FLG output interfaces directly to microcontroller GPIO, signaling undervoltage events with 2% hysteresis to prevent false triggers. |
Use Scenario: Supplying 2.8 V to display interface controllers (eDP/LVDS) in automotive head units operating across −40°C to +125°C. IC Role / Device Role / Timing Role: AEC-Q100 qualified (NCV variant available) LDO with thermal shutdown and reverse current protection for harsh environments. Use Value: Junction-temp-rated operation up to +125°C and robust ESD protection (2 kV HBM) ensure reliability in under-hood or dashboard-mounted electronics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC29152-2.8WT | Same 2.8 V fixed output, but higher 400 mV dropout at 1.5 A; no integrated error flag. | Lacks FLG pin - requires external supervisor for fault detection. | Choose when cost sensitivity outweighs need for integrated diagnostics and lowest dropout. |
| TPS7A4701RGWR | Lower 250 µV RMS noise, but only 1 A max output and 350 mV dropout at 1 A; 20-pin WQFN package. | Higher precision (±0.5%) but lower current capacity - unsuitable for 1.5 A FPGA I/O rails. | Prefer for ultra-low-noise analog signal chains where 1 A suffices and board space allows larger footprint. |
Compared with MIC29152-2.8WT and TPS7A4701RGWR, the NCP59151DS28R4G uniquely balances 1.5 A capability, 300 mV dropout, integrated FLG/EN, and D2PAK-5 thermal performance - making it optimal for space-constrained, high-current POL designs requiring built-in fault visibility.
Availability
NCP59151DS28R4G is available at Aetrix Electronics and suitable for FPGA power supplies, industrial PLC modules, and automotive infotainment systems requiring stable component supply with long-term manufacturability and automotive-grade traceability.
Supply support for NCP59151DS28R4G 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 engineered specifically for high-current, low-noise point-of-load regulation in FPGA, DSP, and ASIC applications - emphasizing fast transient response, ceramic-capacitor compatibility, and integrated protection features.
FAQ
What is the maximum input voltage rating for the NCP59151DS28R4G?
The NCP59151DS28R4G supports 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 may trigger internal protection or degrade long-term reliability, even if within absolute ratings.
Does the NCP59151DS28R4G require an external feedback resistor network?
No - the NCP59151DS28R4G is a fixed-output 2.8 V device and does not use an ADJ pin; it contains internal feedback resistors. Only adjustable variants like NCP59152 require external resistors.
Can the NCP59151DS28R4G be used with a 47 µF ceramic output capacitor?
Yes - the NCP59151DS28R4G is explicitly characterized and guaranteed stable with ≥47 µF X5R or X7R ceramic capacitors, eliminating need for bulk electrolytics and improving transient response and lifetime reliability.
What is the thermal resistance (RJA) of the NCP59151DS28R4G in D2PAK-5 package?
When mounted on a PCB with 100 mm² of 2 oz copper heat-spreading area, the NCP59151DS28R4G exhibits RJA = 52°C/W. Junction temperature must remain ≤125°C; derating is required above +85°C ambient at full 1.5 A load.
Is the NCP59151DS28R4G pin-compatible with other devices in the NCP59150 family?
Yes - all D2PAK-5 variants in the NCP59150 series (e.g., NCP59151DS25R4G, NCP59151DS33R4G) share identical pinout and footprint. Voltage selection is determined solely by part number; no PCB changes are needed when swapping fixed-output versions.
NCP59151DS28R4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- 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):
- 2.8V
- 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:
- D2PAK-5
NCP59151DS28R4G FAQ
1.How can I place an order for NCP59151DS28R4G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP59151DS28R4G 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 NCP59151DS28R4G reliable?
The price and inventory of NCP59151DS28R4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP59151DS28R4G is usually 5 days.
3.What payment methods are accepted for NCP59151DS28R4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP59151DS28R4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP59151DS28R4G?
NCP59151DS28R4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP59151DS28R4G 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 NCP59151DS28R4G?
For technical support, including NCP59151DS28R4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP59151DS28R4G requirements.
6.How does Aetrix verify that NCP59151DS28R4G is sourced from the original manufacturer or authorized distributors?
All NCP59151DS28R4G 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 NCP59151DS28R4G meets industry standards.
7.What is the process for return or replacement of NCP59151DS28R4G?
All NCP59151DS28R4G units undergo pre-shipment inspection (PSI). If there is an issue with NCP59151DS28R4G, 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 NCP59151DS28R4G part is unused and in its original packaging.
Return procedure for NCP59151DS28R4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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