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onsemi NCV8537MN500R2G
- Part No.:
- NCV8537MN500R2G
- Manufacturer:
- onsemi
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
NCV8537MN500R2G.pdf
- Description:
- IC REG LINEAR 5V 500MA 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,163
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Product details
Overview
NCV8537MN500R2G from onsemi is a 5.0 V fixed-output, 500 mA automotive-grade low-dropout linear regulator with Power Good monitoring, ±0.9% output accuracy at 25 °C, 340 mV typical dropout at full load, and AEC-Q100 qualification for use in navigation systems and audio subsystems.
For engineers reviewing the NCV8537MN500R2G datasheet, pinout, applications, or equivalent options, key selection factors include its 5.0 V fixed output, DFN10 3×3 mm package with exposed thermal pad, −40 °C to +125 °C operating range, reverse bias protection up to 7 V, and noise reduction pin support.
Technical Context
The NCV8537MN500R2G implements a high-accuracy bandgap reference and error amplifier driving a series pass element with reverse bias protection. Its Power Good circuit monitors regulated output against 93–99% of nominal Vout with 50 µs blanking time and open-drain logic-level output.
It operates across 2.9 V to 12 V input, delivers stable regulation with any capacitor type ≥1.0 µF (no minimum ESR requirement), and integrates thermal shutdown (160 °C trip, 10 °C hysteresis), current limiting, and <1 mA shutdown current - all within a 10-pin DFN package with EPAD grounded for thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±0.9% at 25 °C; supports automotive navigation and infotainment rails requiring tight initial tolerance. |
| Max Output Current | 500 mA continuous; peak capability up to 830 mA enables short-term surge handling in audio amplifiers. |
| Dropout Voltage | 340 mV typ at 500 mA; allows operation from 5.4 V input while maintaining 5.0 V output under full load. |
| Operating Temp | −40 °C to +125 °C junction; qualified per AEC-Q100 Grade 1 for under-hood and dashboard electronics. |
| Power Good Output | Open-drain signal asserting logic low when Vout falls below 93% of 5.0 V; enables system power sequencing and fault detection. |
| Noise Performance | 58 µVrms (with 10 nF Cnr) or 93 µVrms (no Cnr); suitable for low-noise analog supply domains in audio ICs. |
| Input Range | 2.9 V to 12 V; compatible with 5 V rail generation from 12 V battery via pre-regulation or direct from buck converter outputs. |
Pinout & Package
NCV8537MN500R2G is housed in a 3×3 mm, 0.5 mm pitch DFN10 package (Case 485C) with exposed thermal pad (EPAD) that must be soldered to PCB ground for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Vout | Regulated 5.0 V output; bypassed to GND with ≥1.0 µF capacitor for stability and transient response. |
| 3 | SENSE / ADJ | Internally connected to Vout pins for fixed 5.0 V operation; not adjustable in this variant. |
| 4 | GND | Power ground reference; tied to EPAD for optimal thermal and electrical performance. |
| 5 | PWRG | Open-drain Power Good output; requires external pull-up (e.g., 100 kΩ to Vin) to indicate valid regulation. |
| 6 | NC | No internal connection; must remain unconnected per datasheet. |
| 7 | NR | Noise Reduction pin; connect 10 nF capacitor to GND to reduce output noise by ~35 µVrms. |
| 8 | SD | Active-low shutdown control; driven low (<0.4 V) to disable regulator and reduce quiescent current to <1 mA. |
| 9, 10 | Vin | Input supply (2.9–12 V); decoupled with ≥1.0 µF capacitor placed close to pins 9/10. |
| EPAD | GND | Exposed thermal pad; must be soldered to solid copper ground plane for thermal dissipation (θJA = 66 °C/W). |
Key Features
| Feature | Design Value |
|---|---|
| High accuracy output | ±0.9% at 25 °C ensures reliable microcontroller core voltage compliance without post-regulation trimming. |
| Reverse bias protection | Withstands 7 V at Vout with <10 µA reverse current when Vin = 0 V - prevents damage during battery disconnect events. |
| Stable with any capacitor | No minimum ESR requirement and compatibility with ceramic, tantalum, or polymer capacitors simplifies BOM and layout. |
| Low-noise architecture | 58 µVrms output noise (with Cnr) meets requirements for analog audio stages and precision ADC references. |
| Automotive qualification | AEC-Q100 Grade 1 and PPAP-capable status enables use in safety-critical and production automotive ECUs. |
Applications
| Navigation Systems | Automotive Audio Systems |
|---|---|
Use Scenario: Powering GPS baseband processors and RF front-end ICs in vehicle infotainment head units. IC Role / Device Role / Timing Role: Primary 5.0 V LDO supplying clean, sequenced power to multi-core navigation SoCs. Use Value: Power Good signal enables safe boot sequencing; ±0.9% accuracy maintains processor AVS compliance across temperature. |
Use Scenario: Regulating 5.0 V supply for Class D amplifier controllers and digital signal processors in premium car audio modules. IC Role / Device Role / Timing Role: Low-noise, thermally robust 5 V rail generator with reverse bias protection during ignition cycling. Use Value: 58 µVrms noise (with Cnr) preserves SNR in analog audio paths; DFN10 EPAD enables compact heatsinking in space-constrained modules. |
| Satellite Receivers | DSL/Cable Modems |
Use Scenario: Delivering stable 5.0 V to LNB power control circuits and demodulator ICs in automotive satellite radio receivers. IC Role / Device Role / Timing Role: Fixed-output LDO with thermal shutdown protecting against enclosure overheating in sealed enclosures. Use Value: 160 °C thermal shutdown with 10 °C hysteresis prevents latch-up during sustained ambient >105 °C; AEC-Q100 ensures reliability. |
Use Scenario: Providing regulated 5.0 V to Ethernet PHYs and packet processors in residential broadband gateways. IC Role / Device Role / Timing Role: Secondary LDO after AC/DC or DC/DC conversion, delivering low-noise power to sensitive communication interfaces. Use Value: 340 mV dropout enables efficient operation from 5.4 V intermediate rail; no-load stability eliminates need for dummy loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8535MN500R2G | No Power Good output; otherwise identical architecture, accuracy, and package. | Lacks system-level power monitoring capability; unsuitable where supply health reporting is required. | Select only if Power Good functionality is unnecessary and cost minimization is critical. |
| TPS7B8750QKVURQ1 | TI device: 500 mA, 5.0 V, AEC-Q100, but higher 400 mV dropout and no NR pin. | Higher dropout reduces usable input range; lacks noise reduction option for ultra-low-noise designs. | Choose when TI ecosystem alignment or specific qualification documentation is mandated. |
Compared with NCV8537MN500R2G, NCV8535MN500R2G omits Power Good for simpler systems, while TPS7B8750QKVURQ1 trades noise performance and dropout for alternate qualification pathways - neither offers pin-to-pin compatibility.
Availability
NCV8537MN500R2G is available at Aetrix Electronics and suitable for automotive navigation systems, infotainment audio subsystems, and satellite receiver modules requiring stable component supply with long-term lifecycle planning.
Supply support for NCV8537MN500R2G 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 focused on energy-efficient electronics for automotive, industrial, cloud, and IoT applications.
The NCV8537 series was designed specifically for automotive power management, emphasizing AEC-Q100 compliance, reverse bias resilience, and integrated Power Good signaling for functional safety-aware systems.
FAQ
What is the output voltage tolerance of the NCV8537MN500R2G over temperature?
The NCV8537MN500R2G maintains ±1.5% output voltage accuracy across its full operating temperature range of −40 °C to +125 °C. At 25 °C, the tolerance tightens to ±0.9%, and at 0 °C to +85 °C it is ±1.4%. These values are specified in the Electrical Characteristics table for the 5.0 V version on page 8 of the datasheet. The NCV8537MN500R2G achieves this via a precision bandgap reference and low-drift error amplifier.
Does the NCV8537MN500R2G require an external resistor divider for 5.0 V operation?
No, the NCV8537MN500R2G is a fixed-output variant and does not require an external resistor divider. Pin 3 (SENSE/ADJ) is internally connected to the Vout pins (1 and 2) to set the 5.0 V output. The datasheet confirms this configuration in the PIN FUNCTION DESCRIPTION table (page 4) and the ordering information (page 15), where "500" in the part number denotes the 5.0 V fixed option.
How is the Power Good function implemented on the NCV8537MN500R2G?
The NCV8537MN500R2G's Power Good (PWRG) pin is an open-drain output that asserts logic low when Vout drops below 93% of nominal (4.65 V), with hysteresis ensuring release above 97% (4.85 V). It features a 50 µs blanking time to suppress false triggers during startup. An external pull-up resistor (e.g., 100 kΩ to Vin) is required; the pin remains inactive during thermal shutdown or shutdown mode.
Can the NCV8537MN500R2G be used with ceramic output capacitors?
Yes, the NCV8537MN500R2G is explicitly designed to remain stable with any capacitor type ≥1.0 µF, including ceramic, tantalum, and polymer. Unlike many LDOs, it imposes no minimum ESR requirement and tolerates ESR values up to 5.0 Ω. This eliminates the need for damping resistors or specialized capacitor selection, simplifying design and reducing BOM cost for the NCV8537MN500R2G.
Is the NCV8537MN500R2G still in active production?
No - the NCV8537MN500R2G is officially discontinued, as confirmed in the datasheet revision history (Rev. 7, February 2026) and the Ordering Information table (page 15), which lists it under "DISCONTINUED" with note 14 advising contact with onsemi for alternatives. Aetrix Electronics maintains limited legacy stock and supports lifecycle continuity planning for existing designs using the NCV8537MN500R2G.
NCV8537MN500R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.34V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 220 µA
- Current - Supply (Max):
- 14 mA
- PSRR:
- -
- Control Features:
- Enable, Power Good
- 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:
- 10-DFN (3x3)
NCV8537MN500R2G FAQ
1.How can I place an order for NCV8537MN500R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8537MN500R2G 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 NCV8537MN500R2G reliable?
The price and inventory of NCV8537MN500R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8537MN500R2G is usually 5 days.
3.What payment methods are accepted for NCV8537MN500R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8537MN500R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8537MN500R2G?
NCV8537MN500R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8537MN500R2G 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 NCV8537MN500R2G?
For technical support, including NCV8537MN500R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8537MN500R2G requirements.
6.How does Aetrix verify that NCV8537MN500R2G is sourced from the original manufacturer or authorized distributors?
All NCV8537MN500R2G 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 NCV8537MN500R2G meets industry standards.
7.What is the process for return or replacement of NCV8537MN500R2G?
All NCV8537MN500R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8537MN500R2G, 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 NCV8537MN500R2G part is unused and in its original packaging.
Return procedure for NCV8537MN500R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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