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onsemi NCV8537ML500R2G
- Part No.:
- NCV8537ML500R2G
- Manufacturer:
- onsemi
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
NCV8537ML500R2G.pdf
- Description:
- IC REG LINEAR 5V 500MA 10DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:2,970
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Product details
Overview
NCV8537ML500R2G from onsemi is a high-accuracy, low-dropout linear voltage regulator delivering 5.0 V fixed output at up to 500 mA, featuring Power Good monitoring, ±0.9% output accuracy at 25 °C, 340 mV typical dropout at full load, and AEC-Q100 qualification for automotive navigation and audio systems.
For engineers reviewing the NCV8537ML500R2G datasheet, pinout, applications, or equivalent options, this page provides verified technical context, package mapping, real-world design meaning of key specs, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The NCV8537ML500R2G implements a precision bandgap reference with error amplifier feedback control, integrated thermal shutdown (160 °C trip, 10 °C hysteresis), current limiting, and reverse bias protection enabling safe operation with (Vout − Vin) ≤ 7 V. Its Power Good output asserts logic high when Vout remains within 93–99% of nominal 5.0 V.
It supports stable regulation using any capacitor type ≥1.0 µF with no minimum ESR requirement or minimum load current. The NR pin enables optional noise reduction via 10 nF capacitor, lowering output noise from 93 µVrms to 58 µVrms at 500 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±0.9% at 25 °C - ensures tight supply rail tolerance for sensitive analog/digital ICs in automotive infotainment. |
| Max Output Current | 500 mA continuous - sufficient to power microcontrollers, sensors, and interface ICs in compact navigation modules. |
| Dropout Voltage | 340 mV typ at 500 mA - enables operation from 5.4 V input, supporting wide-input automotive battery ranges (e.g., cold-crank down to ~5.3 V). |
| Power Good Threshold | 93–99% of Vout (4.65–4.95 V) - provides reliable system-level power sequencing and fault detection without external comparators. |
| Operating Temp Range | −40 °C to +125 °C - meets under-hood and dashboard environmental requirements per AEC-Q100 Grade 1. |
| Input Voltage Range | 2.9 V to 12 V - accommodates start-stop systems and transient surges while maintaining regulation. |
| Output Noise | 93 µVrms (no Cnr), 58 µVrms (with 10 nF Cnr) - low enough for RF-sensitive receivers and ADC reference supplies. |
Pinout & Package
NCV8537ML500R2G uses the DFNW10 (Case 507AM) 3×3 mm wettable flank package with exposed thermal pad (EPAD) connected to GND for enhanced thermal performance (θJA = 18 °C/W on 2 oz copper board). Pin 1 orientation marked by microdot or "L8537 500" top-side marking.
| 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 | Connected internally to Vout pins in fixed-output configuration; not adjustable for NCV8537ML500R2G. |
| 4 | GND | Power ground reference; EPAD must be soldered to PCB GND plane for thermal and electrical integrity. |
| 5 | PWRG | Open-drain Power Good output; requires external 100 kΩ pull-up 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 ~38% (93 → 58 µVrms). |
| 8 | SD | Active-low shutdown input; driven low (<0.4 V) to disable regulator and reduce quiescent current to <1 µA. |
| 9, 10 | Vin | Input supply (2.9–12 V); decoupled with ≥1.0 µF capacitor placed close to pins for EMI suppression. |
Key Features
| Feature | Design Value |
|---|---|
| High Accuracy Output | ±0.9% at 25 °C over line/load - eliminates need for post-regulation trimming in safety-critical automotive subsystems. |
| Power Good Monitoring | Dedicated open-drain PWRG pin with 50 µs blanking time - enables deterministic power sequencing in multi-rail systems without external supervision ICs. |
| Reverse Bias Protection | Blocks >99% of reverse current (≤10 µA) when Vin = 0 V and Vout = 5 V - prevents battery drain and protects upstream sources during hot-swap or backup-cap scenarios. |
| Low-Noise Operation | 58 µVrms output noise with 10 nF NR capacitor - meets noise budgets for GPS front-ends and audio DACs in vehicle infotainment. |
| Thermal Shutdown | 160 °C trip with 10 °C hysteresis - provides fail-safe protection during sustained overload or poor heatsinking without latch-up. |
Applications
| Automotive Navigation Systems | DSL/Cable Modem Power Rails |
|---|---|
Use Scenario: Supplies 5.0 V to GPS baseband processors and RF front-ends in dashboard-mounted navigation units operating across −40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: Primary 5 V LDO regulator with Power Good signaling for MCU boot validation and brown-out recovery. Use Value: ±0.9% accuracy ensures consistent ADC reference and sensor biasing; 340 mV dropout allows operation during engine cranking transients. |
Use Scenario: Powers PHY layer ICs and Ethernet controllers in residential broadband modems requiring clean, stable 5 V under variable AC line conditions. IC Role / Device Role / Timing Role: Post-regulator for switching supply outputs, providing low-noise, low-ESR-tolerance 5 V rail to high-speed digital interfaces. Use Value: Stability with any capacitor type ≥1.0 µF simplifies BOM and layout; NR pin reduces jitter in clock distribution networks. |
| Automotive Audio Amplifiers | Satellite Receiver LNB Supplies |
Use Scenario: Delivers 5 V bias to Class D amplifier gate drivers and DSP cores in head-unit audio subsystems subject to automotive EMI and thermal cycling. IC Role / Device Role / Timing Role: Low-noise, thermally robust 5 V source with reverse bias protection against speaker back-EMF coupling. Use Value: 58 µVrms noise (with Cnr) prevents audible hiss; AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime. |
Use Scenario: Provides regulated 5 V to low-noise block (LNB) downconverters in satellite TV receivers, where supply ripple directly impacts signal-to-noise ratio. IC Role / Device Role / Timing Role: Final-stage linear regulator isolating sensitive RF circuitry from noisy switcher outputs. Use Value: 93 µVrms noise (no Cnr) and PSRR >60 dB at 100 kHz suppress switching artifacts from upstream DC/DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8537MN500R2G | Same silicon, DFN10 package (non-wettable flank) vs. DFNW10 (wettable flank); identical electrical specs and pinout. | Designed for standard reflow processes; lacks wettable flank for automated optical inspection (AOI) of solder joints. | Select NCV8537ML500R2G for automotive production requiring IPC-A-610-compliant AOI verification of bottom-terminal soldering. |
| TLV73350PDBVR | 500 mA, 5 V fixed LDO with 250 mV dropout (lower), but no Power Good output and only −40 °C to +125 °C industrial rating (not AEC-Q100 qualified). | Not suitable for automotive safety-critical functions requiring validated power sequencing or PPAP documentation. | Choose TLV73350PDBVR only for cost-sensitive industrial or consumer designs where Power Good and automotive qualification are unnecessary. |
Compared with NCV8537ML500R2G, the NCV8537MN500R2G offers identical regulation performance but lacks wettable flank for AOI, while TLV73350PDBVR trades Power Good and AEC-Q100 compliance for lower dropout-making it unsuitable for automotive navigation or audio systems requiring certified power integrity.
Availability
NCV8537ML500R2G is available at Aetrix Electronics and suitable for automotive navigation systems, DSL/cable modem power rails, and satellite receiver LNB supplies requiring stable component supply, AEC-Q100 compliance, and wettable flank package assurance.
Supply support for NCV8537ML500R2G 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, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The NCV8537ML500R2G belongs to onsemi's automotive-grade LDO family designed specifically for demanding vehicle subsystems-including infotainment, ADAS, and body electronics-where precision regulation, fault monitoring, and long-term reliability are mandatory.
FAQ
What is the output voltage tolerance of the NCV8537ML500R2G over temperature?
The NCV8537ML500R2G maintains ±1.5% output voltage accuracy across the full −40 °C to +125 °C junction temperature range. At 25 °C, tolerance tightens to ±0.9%, and at 0 °C to +85 °C it is ±1.4%. This is specified in the Electrical Characteristics table for the 5.0 V version on page 8 of the datasheet.
Does the NCV8537ML500R2G require an external capacitor on the NR pin?
No, the NR pin on the NCV8537ML500R2G is optional. Connecting a 10 nF capacitor to GND reduces output noise from 93 µVrms to 58 µVrms. If low-noise operation is not required, the NR pin may be left unconnected without affecting regulation stability or functionality.
Can the NCV8537ML500R2G be used in place of an adjustable-output LDO?
No-the NCV8537ML500R2G is factory-trimmed for fixed 5.0 V output. Its SENSE/ADJ pin is internally connected to Vout and not configurable. For adjustable operation, use NCV8537MLADJR2G or NCV8537MNADJR2G, which require external resistor dividers per Equation 2 in the Applications Information section.
What is the purpose of the NC pin (Pin 6) on the NCV8537ML500R2G?
Pin 6 is designated NC (No Connect) in the NCV8537ML500R2G and has no internal connection. It must remain unconnected on the PCB. Routing traces or placing components on this pin violates the device's validated layout and may compromise thermal or electrical performance.
How does the Power Good function behave during thermal shutdown?
The Power Good (PWRG) output on the NCV8537ML500R2G is disabled during thermal shutdown and when the SD pin is asserted low. It only asserts logic high when the device is enabled, regulating, and Vout is within 93–99% of 5.0 V. This behavior is explicitly stated in the Applications Information section on page 14.
NCV8537ML500R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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 (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 10-DFNW (3x3)
NCV8537ML500R2G FAQ
1.How can I place an order for NCV8537ML500R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8537ML500R2G 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 NCV8537ML500R2G reliable?
The price and inventory of NCV8537ML500R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8537ML500R2G is usually 5 days.
3.What payment methods are accepted for NCV8537ML500R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8537ML500R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8537ML500R2G?
NCV8537ML500R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8537ML500R2G 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 NCV8537ML500R2G?
For technical support, including NCV8537ML500R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8537ML500R2G requirements.
6.How does Aetrix verify that NCV8537ML500R2G is sourced from the original manufacturer or authorized distributors?
All NCV8537ML500R2G 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 NCV8537ML500R2G meets industry standards.
7.What is the process for return or replacement of NCV8537ML500R2G?
All NCV8537ML500R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8537ML500R2G, 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 NCV8537ML500R2G part is unused and in its original packaging.
Return procedure for NCV8537ML500R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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