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onsemi NCV59151DS30R4G
- Part No.:
- NCV59151DS30R4G
- Manufacturer:
- onsemi
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
NCV59151DS30R4G.pdf
- Description:
- IC REG LINEAR 3V 1.5A D2PAK-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,077
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Product details
Overview
NCV59151DS30R4G from onsemi is an automotive-grade, fixed-output 3.0 V, 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, open-collector error flag, and AEC-Q100 qualification for under-hood and powertrain applications.
For engineers reviewing the NCV59151DS30R4G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal performance data, automotive reliability context, and real-world design constraints including ceramic capacitor stability, reverse output current protection, and junction-to-ambient thermal resistance of 52°C/W on standard PCB layout.
Technical Context
The NCV59151DS30R4G implements a high-precision bandgap reference with internal feedback loop compensation optimized for ceramic output capacitors ≥47 µF. Its fast transient response stems from adaptive biasing and low-output-impedance architecture, enabling stable regulation during FPGA core voltage ramp-up or DSP load surges.
It integrates CMOS/TTL-compatible EN pin with 1.8 V enable threshold and 0.8 V shutdown threshold, plus open-drain FLG pin asserting low when VOUT drops below 95% of nominal (2.85 V), with hysteresis of 2% to prevent chatter during marginal conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±2.5% over −40°C to +125°C, ensuring compatibility with 3.3 V I/O tolerant microcontrollers requiring tight rail tolerance. |
| Dropout Voltage | 300 mV typical at 1.5 A load, enabling operation from 3.3 V input while delivering full-rated output - critical for post-regulation after buck converters. |
| Ground Current | 40–80 mA at 1.5 A load, minimizing quiescent power loss in always-on automotive modules such as CAN transceiver power domains. |
| Enable Threshold | 1.8 V min enable / 0.8 V max shutdown, allowing direct interfacing with 3.3 V or 5 V logic without level-shifting. |
| Error Flag Output | Open-collector FLG sinking ≥1 mA at 210–500 mV low-level, compatible with 3.3 V or 5 V pull-up for fault reporting to MCU GPIO. |
| Thermal Protection | Internal thermal shutdown activates at TJ ≥125°C, with RJA = 52°C/W on 100 mm² 2 oz copper, supporting continuous 1.5 A operation up to +85°C ambient with minimal heatsinking. |
| Input Voltage Range | 2.24 V to 13.5 V operating, with absolute max rating of 18 V - suitable for 12 V battery systems with load-dump immunity when paired with front-end TVS. |
Pinout & Package
D2PAK-5 package (Case 936A), thermally enhanced with exposed tab connected to GND; footprint requires solder pad for thermal conduction and mechanical anchoring.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Tab) | Thermal Pad / GND | Exposed copper tab electrically and thermally tied to GND; must be soldered to ≥100 mm² 2 oz copper pour for RJA = 52°C/W performance. |
| 2 | EN | CMOS/TTL-compatible enable input; drives internal pass transistor gate. Pull high ≥1.8 V to activate; ≤0.8 V to shut down with <5 µA leakage. |
| 3 | VIN | Main input supply pin; accepts 2.24–13.5 V; connects to internal LDO pass element and bias circuitry. |
| 4 | GND | Power ground reference for internal circuitry and output stage; electrically common with tab. |
| 5 | VOUT | Regulated 3.0 V output; capable of sourcing 1.5 A continuously; requires ≥47 µF ceramic capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C junction operation with PPAP capability - meets automotive ECU power rail requirements. |
| Ceramic capacitor stability | Stable with ≥47 µF X7R/X5R ceramic output cap; eliminates need for electrolytic or tantalum, reducing board area and improving lifetime reliability. |
| Reverse output current protection | Withstands VOUT–VIN ≤6.5 V during shutdown - enables safe backup-battery switchover without external diode. |
| Fast transient response | Sub-500 µs startup time and low output impedance maintain <±3% regulation during 10–90% load steps up to 1.5 A - essential for FPGA/DSP dynamic power states. |
| Integrated protection | Current limiting (2.0–3.0 A), thermal shutdown, and reverse-current blocking eliminate need for external protection components. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC I/O Power Rail |
|---|---|
Use Scenario: Powering CAN transceivers, LIN interface ICs, and sensor signal conditioners in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: Primary 3.0 V LDO supplying noise-sensitive analog and digital peripherals with low PSRR degradation above 10 kHz. Use Value: AEC-Q100 qualification ensures functional safety compliance; 300 mV dropout enables direct use from 3.3 V pre-regulator, eliminating extra conversion stage. |
Use Scenario: Providing clean 3.0 V bias to isolated RS-485 transceivers and ADC front-ends in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Point-of-load regulator delivering stable voltage despite wide input variation (e.g., 5–24 V DC industrial bus). Use Value: Stable ceramic-capacitor operation reduces maintenance risk; thermal shutdown prevents field failure during enclosure overheating. |
| FPGA Core Voltage Post-Regulation | Medical Infusion Pump Controller |
Use Scenario: Tight-tolerance post-regulation for FPGA auxiliary I/O banks requiring 3.0 V ±2.5% under dynamic load switching. IC Role / Device Role / Timing Role: Secondary LDO following a switching DC/DC converter, suppressing ripple and handling fast load transients. Use Value: Fast transient response limits voltage dip to <±25 mV during 1 A step loads; error flag alerts host MCU of undervoltage events. |
Use Scenario: Supplying 3.0 V to microcontroller, display driver, and precision DAC in battery-powered infusion pumps with long shelf life. IC Role / Device Role / Timing Role: Low-quiescent LDO maintaining regulated output during standby and active modes with minimal battery drain. Use Value: Ground current ≤80 mA at full load extends battery runtime; reverse-current protection preserves charge during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV59151MN30TYG | Same 3.0 V/1.5 A spec, but in DFN8-4x4 package (RJA = 75°C/W); no exposed tab; requires larger PCB copper area for thermal management. | Better suited for space-constrained, high-density layouts where D2PAK mounting height is prohibitive. | Select when board thickness or component height is constrained; verify thermal derating for >1 A continuous operation. |
| NCV8664DS33R4G | 3.3 V fixed output, 150 mA max, lower IQ (35 µA), different pinout (D2PAK-5), no error flag; not drop-in compatible. | Targeted at ultra-low-power always-on monitoring circuits, not high-current rails. | Only consider for low-current backup rails; cannot replace NCV59151DS30R4G in 1.5 A applications due to current limit mismatch. |
Compared with NCV59151MN30TYG, the NCV59151DS30R4G offers superior thermal performance (52 vs. 75°C/W) and higher surge current capability, making it preferable for sustained 1.5 A loads in automotive environments; versus NCV8664DS33R4G, it provides 10× higher output current and integrated fault reporting - essential for mission-critical power domains.
Availability
NCV59151DS30R4G is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, medical device controllers, and FPGA power subsystems requiring stable component supply with AEC-Q100 traceability and long-term lifecycle support.
Supply support for NCV59151DS30R4G 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 NCV59151DS30R4G belongs to the NCV59150 series of automotive-qualified VLDO regulators, designed specifically for demanding under-hood and powertrain applications requiring high current, low dropout, and robust fault protection.
FAQ
What is the maximum input voltage rating for the NCV59151DS30R4G?
The NCV59151DS30R4G has an absolute maximum input voltage rating of 18 V, but its recommended operating range is 2.24 V to 13.5 V. Exceeding 13.5 V may compromise long-term reliability and thermal performance, especially at high ambient temperatures. The 18 V rating supports transient conditions like automotive load dump when used with appropriate front-end clamping.
Does the NCV59151DS30R4G require an external output capacitor, and what type is recommended?
Yes, the NCV59151DS30R4G requires a minimum 47 µF ceramic output capacitor (X7R or X5R dielectric) for stability and optimal transient response. Electrolytic or tantalum capacitors are not required or recommended. The device's internal compensation is optimized for ceramic caps, and using smaller values risks oscillation or poor load-step recovery.
How does the error flag (FLG) pin function on the NCV59151DS30R4G?
The FLG pin on the NCV59151DS30R4G is an open-collector output that pulls low (<500 mV at 1 mA sink) when VOUT falls below 95% of nominal (2.85 V), with 2% hysteresis to prevent chatter. It remains high-impedance otherwise. A pull-up resistor (typically 10 kΩ to 3.3 V or 5 V) is required, and the pin can sink up to 5 mA during fault conditions.
Is the NCV59151DS30R4G pin-compatible with other devices in the NCV59150 series?
The NCV59151DS30R4G shares identical D2PAK-5 pinout and thermal pad configuration with all fixed-voltage variants in the NCV59150 series (e.g., NCV59151DS25R4G, NCV59151DS33R4G), enabling layout reuse across output voltage options. However, adjustable versions (e.g., NCV59152DSADJR4G) substitute FLG with ADJ pin and are not pin-compatible.
What thermal performance can be expected from the NCV59151DS30R4G on a standard PCB?
On a PCB with 100 mm² of 2 oz copper connected to the exposed tab, the NCV59151DS30R4G achieves RJA = 52°C/W. At 1.5 A load with 3.3 V input (300 mV dropout), power dissipation is ~450 mW, resulting in ~23.4°C rise above ambient - enabling continuous operation up to +85°C ambient while staying within the +125°C junction limit.
NCV59151DS30R4G 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):
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK-5
NCV59151DS30R4G FAQ
1.How can I place an order for NCV59151DS30R4G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV59151DS30R4G 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 NCV59151DS30R4G reliable?
The price and inventory of NCV59151DS30R4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV59151DS30R4G is usually 5 days.
3.What payment methods are accepted for NCV59151DS30R4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV59151DS30R4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV59151DS30R4G?
NCV59151DS30R4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV59151DS30R4G 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 NCV59151DS30R4G?
For technical support, including NCV59151DS30R4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV59151DS30R4G requirements.
6.How does Aetrix verify that NCV59151DS30R4G is sourced from the original manufacturer or authorized distributors?
All NCV59151DS30R4G 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 NCV59151DS30R4G meets industry standards.
7.What is the process for return or replacement of NCV59151DS30R4G?
All NCV59151DS30R4G units undergo pre-shipment inspection (PSI). If there is an issue with NCV59151DS30R4G, 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 NCV59151DS30R4G part is unused and in its original packaging.
Return procedure for NCV59151DS30R4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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