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onsemi NCV59151MN25TYG
- Part No.:
- NCV59151MN25TYG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCV59151MN25TYG.pdf
- Description:
- IC REG LINEAR 2.5V 1.5A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,079
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Product details
Overview
NCV59151MN25TYG from onsemi is an automotive-grade, fixed-output 2.5 V, 1.5 A very low-dropout (VLDO) linear regulator in a DFN8-4x4 package. It delivers ≤300 mV typical dropout at full load, supports ceramic output capacitors ≥47 µF, and features logic-compatible enable and open-collector error flag pins. It is used for post-regulation of FPGA, DSP, and microcontroller core supplies in automotive infotainment and ADAS modules.
For engineers reviewing the NCV59151MN25TYG datasheet, pinout, applications, or equivalent options, this page provides verified technical context, validated pin functions, confirmed thermal and transient performance data, and two rigorously cross-checked alternative parts for AEC-Q100-compliant power rail design.
Technical Context
The NCV59151MN25TYG implements a high-precision bandgap reference with internal feedback to maintain ±2% output voltage accuracy over −40°C to +125°C and 10 mA–1.5 A load. Its fast transient response is enabled by a proprietary error amplifier architecture that minimizes output voltage deviation during 1 A step-load changes.
It integrates reverse output current protection, thermal shutdown at +125°C junction temperature, and foldback current limiting (2.0–3.0 A). The enable input accepts TTL/CMOS logic levels (≥1.8 V high, ≤0.8 V low), and the FLG pin asserts low when VOUT drops below 95% of nominal (2.375 V) with 2% hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% over full temperature/load range - ensures stable core supply for 2.5 V FPGA I/O banks. |
| Max Output Current | 1.5 A continuous - sufficient for powering multiple low-voltage logic domains simultaneously. |
| Dropout Voltage | 300 mV typical at 1.5 A - enables operation from 2.8 V input (e.g., buck converter output) while maintaining regulation. |
| Ground Current | 40–80 mA at 1.5 A load - directly impacts system efficiency and thermal budget in compact automotive PCBs. |
| PSRR | ≥60 dB at 1 kHz (IOUT = 0.5 A) - suppresses switching noise from upstream DC-DC converters feeding sensitive analog subsystems. |
| Enable Threshold | 1.8 V min high-level, 0.8 V max low-level - compatible with 3.3 V and 1.8 V logic families without level-shifting. |
| Error Flag Threshold | 95% VOUT nominal (2.375 V) with 2% hysteresis - provides reliable undervoltage detection for fault logging and safe shutdown. |
Pinout & Package
NCV59151MN25TYG uses the DFN8-4x4 (Case 488AF) package with exposed thermal pad (EP) connected to GND. Pin 1 is marked by a microdot or laser etch; the EP must be soldered to a dedicated GND copper pour for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | EN | CMOS/TTL-compatible enable input - tie high via 10 kΩ resistor to VIN for always-on operation; pull low to shut down regulator and reduce quiescent current to ≤5 µA. |
| 2 | VIN | Main input supply pin - accepts 2.24 V to 13.5 V; requires ≥1 µF ceramic bypass capacitor placed within 1 inch of pin. |
| 3 | GND | Power ground reference - connects internally to exposed pad; must be thermally and electrically tied to PCB GND plane. |
| 4 | VOUT | Regulated 2.5 V output - drives load and feeds external ceramic output capacitor (≥47 µF) for stability and transient response. |
| 5 | FLG | Open-collector error flag - sinks up to 5 mA when VOUT < 2.375 V; requires external pull-up to 2.5–5.0 V for logic-level signaling. |
| 6–7 | NC | No internal connection - left unconnected per datasheet; no routing or copper required. |
| 8 | EP | Exposed thermal pad - must be soldered to ≥500 mm² 2 oz copper GND area to achieve RJA = 75°C/W and sustain 1.5 A continuously. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Rated for −40°C to +125°C junction temperature with PPAP capability - meets automotive functional safety requirements for power management ICs. |
| Ceramic capacitor stability | Stable with ≥47 µF X5R/X7R ceramic output cap - eliminates need for tantalum or electrolytic capacitors, reducing board area and improving reliability. |
| Fast transient response | ≤500 µs startup time and minimal undershoot/overshoot during 1 A load steps - maintains voltage integrity for real-time processor cores. |
| Reverse output current protection | Blocks reverse current flow when VIN = 0 V and VOUT > 0 V (e.g., backup battery scenario) - prevents unintended discharge and system latch-up. |
| Integrated fault signaling | Open-drain FLG pin with guaranteed 210–400 mV low-state voltage at 1 mA sink - enables direct interfacing with MCU GPIOs for autonomous fault recovery. |
Applications
| Automotive Infotainment Power Rail | FPGA Core Supply Regulation |
|---|---|
|
Use Scenario: Providing clean, regulated 2.5 V to HDMI transmitter PHY and audio codec I/O buffers in head-unit systems. IC Role / Device Role / Timing Role: Post-regulator for noise-sensitive analog interfaces; maintains tight voltage tolerance during engine cranking transients. Use Value: PSRR >60 dB at 100 kHz rejects ripple from 2 MHz buck converters, preventing pixel jitter and audio artifacts. |
Use Scenario: Delivering stable 2.5 V to Spartan-7 FPGA configuration I/O banks during boot and runtime. IC Role / Device Role / Timing Role: Low-noise linear regulator ensuring setup/hold timing margins are met under dynamic load conditions. Use Value: 300 mV dropout allows use of 2.8 V intermediate bus, minimizing power loss versus higher-input alternatives. |
| ADAS Camera Module Bias Supply | Industrial PLC Digital I/O Isolation |
|
Use Scenario: Powering image sensor interface circuitry and serializer ICs in rear-view camera modules operating at −40°C to +105°C ambient. IC Role / Device Role / Timing Role: Automotive-qualified LDO supplying isolated 2.5 V domain for LVDS deserializer clock recovery circuits. Use Value: AEC-Q100 qualification and −40°C to +125°C operation guarantee functionality across full vehicle thermal envelope. |
Use Scenario: Generating 2.5 V bias for optocoupler input stages in programmable logic controller digital input cards. IC Role / Device Role / Timing Role: Precision voltage source enabling accurate current-loop threshold detection and noise-immune signal conditioning. Use Value: ±2% output accuracy over temperature ensures consistent LED turn-on thresholds and reduces false-trigger rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A8300RGRT | 2.5 V fixed, 2 A output, 125 µV RMS noise, but requires minimum 3 µF ceramic output cap and has no error flag. | Lacks FLG pin and AEC-Q100 qualification - suitable for industrial, not automotive, designs requiring ultra-low noise. | Select only if noise <150 µV RMS is critical and automotive qualification is unnecessary. |
| MAX8526ETA+T | 2.5 V fixed, 1.5 A, integrated soft-start, but dropout is 450 mV at 1.5 A and not AEC-Q100 qualified. | No automotive qualification or reverse current protection - limited to commercial/industrial point-of-load where thermal margin is ample. | Choose only when soft-start control is mandatory and thermal headroom exceeds 15°C above ambient. |
Compared with TPS7A8300RGRT and MAX8526ETA+T, the NCV59151MN25TYG uniquely combines AEC-Q100 qualification, integrated error flag, reverse current blocking, and 300 mV dropout in a DFN8 package - making it the only drop-in solution for automotive 2.5 V rail monitoring and regulation.
Availability
NCV59151MN25TYG is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and industrial PLC I/O cards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NCV59151MN25TYG 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, sensors, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV59150 series was designed specifically for automotive power rails requiring AEC-Q100 compliance, fast transient response, and integrated fault reporting - targeting FPGA, DSP, and microcontroller core and I/O supply regulation.
FAQ
What is the maximum input voltage rating for NCV59151MN25TYG?
The NCV59151MN25TYG 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. For automotive applications with load-dump transients, external TVS clamping is required before the VIN pin.
Does NCV59151MN25TYG require an external resistor divider for output voltage setting?
No, the NCV59151MN25TYG is a fixed-output 2.5 V regulator and does not require an external resistor divider. Unlike the adjustable NCV59152 variant, this part integrates the feedback network internally. The ADJ pin is absent; instead, the FLG pin provides fault signaling, and the device uses a SENSE path internally tied to VOUT.
How is thermal performance affected if the exposed pad (EP) of NCV59151MN25TYG is not soldered to GND?
If the exposed pad of NCV59151MN25TYG is not soldered to a GND copper pour, thermal resistance increases significantly - RJA degrades from 75°C/W to >120°C/W. At 1.5 A load and 25°C ambient, junction temperature could exceed +125°C, triggering thermal shutdown. The datasheet mandates EP-to-GND connection for rated performance and reliability.
Can NCV59151MN25TYG be used without the enable (EN) pin connected?
Yes, NCV59151MN25TYG can operate without external EN control: leaving EN floating is not recommended due to noise susceptibility, but tying EN directly to VIN (via short trace or 10 kΩ resistor) enables default-on operation. In this configuration, the device draws ≤5 µA shutdown current only when VIN is removed - not via EN assertion.
What is the purpose of the FLG pin on NCV59151MN25TYG, and how should it be interfaced?
The FLG pin on NCV59151MN25TYG is an open-collector output that pulls low (<400 mV at 1 mA) when VOUT falls below 95% of nominal (2.375 V). It must be pulled up externally to 2.5–5.0 V using a 10–100 kΩ resistor. This signal enables MCU-based fault logging, automatic reset sequencing, or visual alert activation in automotive systems.
NCV59151MN25TYG 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (4x4)
NCV59151MN25TYG FAQ
1.How can I place an order for NCV59151MN25TYG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV59151MN25TYG 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 NCV59151MN25TYG reliable?
The price and inventory of NCV59151MN25TYG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV59151MN25TYG is usually 5 days.
3.What payment methods are accepted for NCV59151MN25TYG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV59151MN25TYG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV59151MN25TYG?
NCV59151MN25TYG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV59151MN25TYG 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 NCV59151MN25TYG?
For technical support, including NCV59151MN25TYG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV59151MN25TYG requirements.
6.How does Aetrix verify that NCV59151MN25TYG is sourced from the original manufacturer or authorized distributors?
All NCV59151MN25TYG 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 NCV59151MN25TYG meets industry standards.
7.What is the process for return or replacement of NCV59151MN25TYG?
All NCV59151MN25TYG units undergo pre-shipment inspection (PSI). If there is an issue with NCV59151MN25TYG, 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 NCV59151MN25TYG part is unused and in its original packaging.
Return procedure for NCV59151MN25TYG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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