My Inquiry
My Account
onsemi NCV8537ML180R2G
- Part No.:
- NCV8537ML180R2G
- Manufacturer:
- onsemi
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
NCV8537ML180R2G.pdf
- Description:
- IC REG LINEAR 1.8V 500MA 10DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCV8537ML180R2G from onsemi is a high-accuracy, low-dropout linear voltage regulator delivering 1.8 V fixed output at up to 500 mA, featuring Power Good monitoring, reverse bias protection, and operation across −40 °C to +125 °C. It targets automotive-grade power rails in navigation systems and audio subsystems where stable low-noise supply and system health reporting are critical.
For engineers reviewing the NCV8537ML180R2G datasheet, pinout, applications, or equivalent options, this page provides verified technical context, package mapping, functional alternatives, and design-meaning specifications - all validated against the official onsemi NCV8537 datasheet (Rev. 7, Feb 2026).
Technical Context
The NCV8537ML180R2G implements a precision bandgap reference with error amplifier feedback control, integrated thermal shutdown (160 °C trip, 10 °C hysteresis), and current limiting. Its architecture supports reverse bias protection up to 7 V (VOUT–VIN) with leakage <10 µA, enabling safe operation during input loss while output remains energized.
It features dual noise-reduction capability: internal low-noise design (33 µVRMS with 10 nF CNR) and an external NR pin for further suppression. The Power Good output asserts logic high when VOUT ≥ 95% of nominal (1.71 V), with 50 µs blanking time and 200 mV saturation under 1 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±0.9% at 25 °C; ±1.5% over −40 °C to +125 °C - ensures tight regulation for 1.8 V logic rails without external feedback. |
| Max Output Current | 500 mA continuous; peak 830 mA - supports moderate-power microcontrollers and interface ICs without derating at 85 °C ambient. |
| Dropout Voltage | 340 mV typical at 500 mA (VIN = 2.9 V) - enables operation from 2.9 V input, critical for battery-backed or low-headroom systems. |
| Power Good Threshold | 95% of VOUT (1.71 V) with 2% hysteresis - provides reliable system reset signaling without false triggers during load transients. |
| Output Noise | 33 µVRMS (10 Hz–100 kHz, with 10 nF CNR) - meets low-noise requirements for ADC references and RF front-end biasing. |
| Operating Temp Range | −40 °C to +125 °C junction - qualified per AEC-Q100 Grade 1, suitable for under-hood automotive modules. |
| Shutdown Current | <1 mA (typical) - enables ultra-low quiescent power in sleep modes for always-on vehicle networks. |
Pinout & Package
NCV8537ML180R2G uses the DFNW10 (Case 507AM) 3×3 mm wettable flank package with exposed thermal pad (EPAD) connected to GND. This package supports automated optical inspection (AOI) and improves thermal performance vs. standard DFN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Vout | Regulated 1.8 V output; requires ≥1.0 µF bypass capacitor to GND for stability and transient response. |
| 3 | SENSE/ADJ | Connected internally to Vout pins in fixed-output version; not used externally - no external resistor divider required. |
| 4 | GND | Power ground return; must be tied directly to EPAD for optimal thermal and noise performance. |
| 5 | PWRG | Open-drain Power Good output; requires external 100 kΩ pull-up to Vin to signal valid regulation status. |
| 6 | NC | No connect - must remain unconnected; no internal circuitry attached. |
| 7 | NR | Noise Reduction pin; connect 10 nF capacitor to GND to reduce output noise by ~35% (from 52 µVRMS to 33 µVRMS). |
| 8 | SD | Active-high shutdown input; ≥2.0 V enables regulation, ≤0.4 V disables output and reduces IQ to <1 mA. |
| 9, 10 | Vin | Input supply (2.9 V to 12 V); requires ≥1.0 µF ceramic capacitor close to pins for EMI suppression and transient immunity. |
| EPAD | GND | Exposed thermal pad - must be soldered to PCB GND plane to achieve RJA = 18 °C/W and prevent thermal shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| ±0.9% output accuracy at 25 °C | Reduces need for post-regulation trimming in safety-critical automotive sensors and ADAS ECUs. |
| Power Good with 50 µs blanking | Prevents false resets during brief brownouts or startup overshoot, improving boot reliability in infotainment head units. |
| Stable with any 1.0 µF capacitor | Eliminates ESR constraints - allows use of low-ESR polymer or MLCC capacitors without risk of oscillation. |
| Reverse bias protection (≤7 V) | Enables hot-swap capability and prevents damage when VIN collapses while VOUT remains charged via large bulk capacitance. |
| Wettable flank DFNW10 package | Supports automated solder-joint inspection for automotive production lines, ensuring IPC-A-610 Class 3 compliance. |
Applications
| Automotive Audio Amplifier Bias Rail | ADAS Camera Module Core Supply |
|---|---|
|
Use Scenario: Powers analog front-end and DAC stages in premium car audio amplifiers requiring ultra-low noise and precise 1.8 V reference. IC Role / Device Role / Timing Role: Primary LDO regulator providing clean, regulated 1.8 V to sensitive audio signal chain components. Use Value: 33 µVRMS noise (with CNR) and ±0.9% accuracy preserve SNR >110 dB and minimize THD+N in Class-D amplifier control paths. |
Use Scenario: Supplies image sensor and ISP core logic in 77 GHz radar or surround-view camera modules operating in engine bay environments. IC Role / Device Role / Timing Role: High-reliability power source meeting AEC-Q100 Grade 1 requirements for extended temperature operation. Use Value: −40 °C to +125 °C operation and Power Good monitoring enable fail-safe diagnostics and controlled shutdown during thermal events. |
| Infotainment System USB PHY Supply | Telematics Control Unit (TCU) Memory Interface |
|
Use Scenario: Delivers stable 1.8 V to USB 2.0 transceivers and PHY layers in automotive infotainment head units with variable input from 12 V battery. IC Role / Device Role / Timing Role: Low-dropout regulator maintaining regulation during cold-crank (up to 2.9 V input) and load transients. Use Value: 340 mV dropout at 500 mA ensures uninterrupted USB link integrity even during battery dips below 6 V. |
Use Scenario: Powers LPDDR4 I/O buffers and memory controller logic in TCU modules requiring robust power sequencing and fault reporting. IC Role / Device Role / Timing Role: Regulator with Power Good output synchronized to memory initialization sequence for deterministic boot timing. Use Value: 95% VOUT threshold and 50 µs blanking align precisely with JEDEC memory power-up timing requirements (tPU). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8537MN180R2G | Same silicon die, but in DFN10 (non-wettable flank) package; RJA = 66 °C/W vs. 18 °C/W for DFNW10. | Lacks AOI-compatible wettable flanks; unsuitable for automotive SMT lines requiring solder-joint inspection. | Select NCV8537ML180R2G for new automotive designs requiring IPC-A-610 Class 3 process validation. |
| TLV73318PDBVR | Lower IQ (60 µA), smaller SOT-23-5 package, but only AEC-Q100 Grade 3 (−40 °C to +85 °C); no Power Good or NR pin. | Not rated for under-hood operation; lacks system monitoring features needed for ASIL-B diagnostic coverage. | Choose TLV73318PDBVR only for cost-sensitive cabin-zone modules where temperature range and diagnostics are non-critical. |
Compared with NCV8537MN180R2G, the NCV8537ML180R2G delivers superior thermal performance and manufacturability for automotive production, while TLV73318PDBVR trades robustness for size and quiescent current - making NCV8537ML180R2G the sole choice for AEC-Q100 Grade 1-compliant 1.8 V LDO applications requiring Power Good and noise reduction.
Availability
NCV8537ML180R2G is available at Aetrix Electronics and suitable for automotive navigation systems, ADAS camera modules, and telematics control units requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for NCV8537ML180R2G 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, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV8537ML180R2G belongs to onsemi's automotive-grade linear regulator product line, designed specifically for high-reliability power delivery in safety-critical vehicle subsystems with stringent thermal, noise, and diagnostic requirements.
FAQ
What is the minimum input voltage required for NCV8537ML180R2G to regulate at full 500 mA load?
The NCV8537ML180R2G requires a minimum input voltage of 2.9 V to maintain regulation at 500 mA output current. At this condition, the dropout voltage is 340 mV typical, meaning VIN must exceed VOUT + VDO = 1.8 V + 0.34 V = 2.14 V - but the datasheet specifies 2.9 V as the guaranteed minimum to ensure stability, accuracy, and thermal margin across temperature and process variation. Below 2.9 V, regulation may degrade or cease.
Does NCV8537ML180R2G require an external resistor divider for its 1.8 V output?
No, the NCV8537ML180R2G is a fixed-output variant - its 1.8 V regulation is achieved internally, and Pin 3 (SENSE/ADJ) is internally connected to Vout. No external resistors are needed or recommended. Using an external divider would disrupt factory-trimmed accuracy and potentially cause instability, as the device is not designed for adjustable operation in this marking configuration.
How is Power Good functionality implemented on NCV8537ML180R2G?
The NCV8537ML180R2G's Power Good (Pin 5) is an open-drain output that pulls low when VOUT falls below 95% of nominal (1.71 V), with 2% hysteresis (reasserts high at 97%, or 1.746 V). It requires an external 100 kΩ pull-up resistor to Vin. The output is disabled during thermal shutdown or when SD is asserted low, and includes 50 µs blanking to suppress noise-induced glitches during startup or transients.
Can NCV8537ML180R2G be used in applications where the output voltage exceeds the input voltage?
Yes - the NCV8537ML180R2G incorporates reverse bias protection allowing VOUT to exceed VIN by up to 7.0 V (e.g., VIN = 0 V, VOUT = 1.8 V) with only ≤10 µA leakage to GND. This protects the device during hot-swap events or when powered from multiple sources, but does not enable back-powering - the regulator remains inactive unless VIN ≥ 2.9 V.
What is the purpose of the NR pin (Pin 7) on NCV8537ML180R2G?
The NR (Noise Reduction) pin on NCV8537ML180R2G reduces output voltage noise by filtering the internal reference. Connecting a 10 nF capacitor from Pin 7 to GND lowers RMS noise from 52 µV (no CNR) to 33 µV (10 Hz–100 kHz bandwidth). If ultra-low noise is not required, the pin may be left floating - it has no effect on regulation accuracy or stability.
NCV8537ML180R2G 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.62V @ 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)
NCV8537ML180R2G FAQ
1.How can I place an order for NCV8537ML180R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8537ML180R2G 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 NCV8537ML180R2G reliable?
The price and inventory of NCV8537ML180R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8537ML180R2G is usually 5 days.
3.What payment methods are accepted for NCV8537ML180R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8537ML180R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8537ML180R2G?
NCV8537ML180R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8537ML180R2G 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 NCV8537ML180R2G?
For technical support, including NCV8537ML180R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8537ML180R2G requirements.
6.How does Aetrix verify that NCV8537ML180R2G is sourced from the original manufacturer or authorized distributors?
All NCV8537ML180R2G 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 NCV8537ML180R2G meets industry standards.
7.What is the process for return or replacement of NCV8537ML180R2G?
All NCV8537ML180R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8537ML180R2G, 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 NCV8537ML180R2G part is unused and in its original packaging.
Return procedure for NCV8537ML180R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCV8537ML180R2G Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
