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onsemi NCV8501PDW33G
- Part No.:
- NCV8501PDW33G
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
NCV8501PDW33G.pdf
- Description:
- IC REG LINEAR 3.3V 150MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,764
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Product details
Overview
NCV8501PDW33G from onsemi is a 3.3 V, 150 mA automotive-grade LDO linear regulator with integrated active RESET (with programmable delay), ENABLE control, FLAG early-warning monitor, and fault protection. It delivers ±2.0% output accuracy, 0.6 V max dropout at full load, and draws only 90 µA quiescent current at light load - designed for battery-powered microprocessor systems in harsh automotive environments.
For engineers reviewing the NCV8501PDW33G datasheet, pinout, applications, or equivalent options, key selection criteria include its 3.3 V fixed output, SOW-16 exposed-pad package for thermal robustness, RESET operation down to 1.0 V output, FLAG comparator threshold at 1.20 V (programmable via MON pin), and automotive qualification per AEC-Q100.
Technical Context
The NCV8501PDW33G implements a bandgap-referenced error amplifier driving an internal PNP pass transistor, with independent comparator circuits for RESET (hysteresis-enabled, low-voltage valid) and FLAG (early warning via MON input). Its ENABLE pin supports direct battery connection with built-in overvoltage protection up to +60 V transient and −15 V reverse voltage tolerance.
Thermal shutdown activates at 150 °C, and the device sustains load dump transients without external clamping. The DELAY pin sources 2.5 µA typical to charge an external capacitor, enabling precise reset timing (e.g., 23.8 ms with 33 nF), while the open-collector FLAG output provides TTL-compatible early warning before RESET assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2.0% - ensures stable MCU core/logic rail under temperature and line/load variation. |
| Max Output Current | 150 mA - sufficient for low-power microcontrollers, sensors, and CAN transceivers. |
| Dropout Voltage | 600 mV max at 150 mA - enables operation from 3.9 V input, critical for cold-crank automotive conditions. |
| Quiescent Current | 90 µA at 100 µA load - extends battery life in always-on vehicle modules (e.g., body control units). |
| RESET Threshold | 3.00 V (rising), 2.97 V (falling) - guarantees reliable microprocessor reset before brownout-induced corruption. |
| FLAG Monitor Threshold | 1.20 V typical on MON pin - allows programmable early warning window (e.g., 100–200 ms) before RESET. |
| Operating Input Range | −15 V to +45 V - withstands reverse battery, load dump (60 V peak), and wide automotive battery fluctuations. |
Pinout & Package
SOW-16 exposed pad (Case 751AG) - thermally enhanced SOIC-wide-body package with integrated heat slug for high-power dissipation in compact automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply - accepts −15 V to +45 V, including 60 V load dump transients. |
| 2 | MON | Early-warning comparator input - connect resistor divider from VOUT to set FLAG trip point (typ. 1.20 V). |
| 3 | ENABLE | Active-high enable - powers up regulator when ≥2.55 V applied; internal pull-down for fail-safe sleep mode. |
| 4 | DELAY | Reset timing capacitor node - sources 2.5 µA to program RESET delay (e.g., 33 nF = ~24 ms). |
| 5–6, 10–12, 14–15 | NC | No connection - must be left floating; not internally bonded. |
| 7 | GND | Power ground - all GND pins must be connected to system ground plane for thermal and noise integrity. |
| 8 | RESET | Open-collector active-low reset output - valid down to VOUT = 1.0 V; requires external pull-up. |
| 9 | FLAG | Open-collector early-warning output - asserts low when MON voltage falls below threshold. |
| 10 | VOUT | Regulated 3.3 V output - ±2.0% accuracy, 150 mA capable, requires 10 µF output capacitor for stability. |
| 16 | Exposed Pad | Thermal and electrical ground - must be soldered to PCB copper pour for RJA = 56 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | NCV prefix indicates AEC-Q100 qualified, with site/change control for production traceability. |
| Integrated RESET with Delay | Programmable delay via external capacitor on DELAY pin - eliminates need for discrete RC timing network. |
| Early Warning FLAG | Independent comparator with MON input - gives microprocessor time to save state before RESET assertion. |
| Fault Protection | Reverse battery (−15 V), short-circuit, thermal shutdown (150 °C), and 60 V load dump survival. |
| Low IQ Sleep Mode | 12 µA typical quiescent current when ENABLE = 0 V - meets automotive "off-mode" current budgets. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Camera ECU |
|---|---|
|
Use Scenario: Powering microcontroller, CAN transceiver, and door/window sensor interface in vehicle body electronics. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying MCU core voltage with RESET/FLAG supervision for safe power sequencing. Use Value: Withstands 60 V load dump and −15 V reverse battery without external protection, reducing BOM count and board space. |
Use Scenario: Supplying image signal processor and serial interface in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Regulator with early-warning FLAG allowing graceful shutdown of image capture before power failure. Use Value: FLAG comparator triggers at 1.20 V on MON pin, giving >150 ms warning before RESET at 2.97 V - enough time to flush frame buffer. |
| Telematics Control Unit (TCU) | Infotainment System Power Management |
|
Use Scenario: Providing always-on 3.3 V rail for GPS/GNSS receiver and cellular modem during vehicle sleep mode. IC Role / Device Role / Timing Role: Low-IQ (90 µA) LDO with ENABLE-controlled wake-up and RESET supervision for firmware integrity. Use Value: Sleep-mode IQ of 12 µA when ENABLE = 0 V ensures compliance with ISO 16750-2 quiescent current limits for telematics. |
Use Scenario: Powering audio DSP, touch controller, and display interface in head-unit systems requiring clean, stable 3.3 V. IC Role / Device Role / Timing Role: Fixed-output LDO with high PSRR (60 dB @ 1 kHz) and low noise for analog-sensitive subsystems. Use Value: 0.6 V dropout enables operation during engine cranking (input down to 3.9 V), preventing infotainment reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | 3.3 V, 300 mA, 250 mV dropout, no RESET/FLAG, SOT-23-5 package. | Lacks integrated supervision functions; requires external reset IC and monitoring circuitry. | Choose for cost-sensitive, non-automotive designs where supervision is handled elsewhere. |
| TPS7B6733QPWPRQ1 | 3.3 V, 400 mA, 400 mV dropout, RESET/FLAG, wettable flank QFN-20 package. | Higher current, smaller footprint, but no exposed pad for thermal conduction like SOW-16. | Prefer for space-constrained ADAS ECUs needing higher current and AEC-Q100 Grade 1 rating. |
Compared with TLV73333PDBVR and TPS7B6733QPWPRQ1, the NCV8501PDW33G offers optimal thermal performance via its exposed-pad SOW-16 package and proven 60 V load dump resilience - critical for under-hood BCM and gateway applications where reliability outweighs raw current capability.
Availability
NCV8501PDW33G is available at Aetrix Electronics and suitable for automotive body control modules, ADAS camera ECUs, and telematics control units requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for NCV8501PDW33G 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, high-reliability components for automotive, industrial, and cloud power applications.
The NCV8501PDW33G belongs to the NCV8501 series of micropower LDOs engineered specifically for automotive microprocessor power management - emphasizing fault resilience, extended temperature operation (−40 °C to +150 °C), and integrated supervision to reduce system-level complexity.
FAQ
What is the maximum input voltage the NCV8501PDW33G can withstand?
The NCV8501PDW33G supports a continuous DC input voltage range of −15 V to +45 V. It is explicitly rated to survive 60 V peak transient voltage (e.g., automotive load dump events at VIN = 14 V), making it suitable for direct battery connection without external TVS diodes in most automotive applications.
Does the NCV8501PDW33G require an external capacitor on the DELAY pin?
Yes - the DELAY pin requires an external capacitor to set the RESET delay time. The device sources a typical 2.5 µA current into this capacitor; using a 33 nF capacitor yields ~23.8 ms delay. No capacitor results in immediate RESET assertion upon power-up or fault detection.
How does the FLAG function work on the NCV8501PDW33G?
The FLAG output is an open-collector comparator that asserts low when the voltage on the MON pin falls below its threshold (typically 1.20 V). By connecting a resistor divider from VOUT to MON, designers set an early-warning voltage margin - e.g., 3.0 V on MON triggers FLAG before VOUT drops to the 2.97 V RESET threshold.
What is the thermal performance of the NCV8501PDW33G in its SOW-16 package?
In the SOW-16 exposed-pad package, the NCV8501PDW33G achieves a junction-to-ambient thermal resistance (RJA) of 56 °C/W when mounted on a 2 oz. copper pad (800 mm²). Its junction-to-case (RJC) is 15 °C/W, enabling reliable operation at 150 mA load even in +85 °C ambient environments with proper PCB layout.
Is the NCV8501PDW33G pin-compatible with other variants in the NCV8501 family?
No - the NCV8501PDW33G uses the SOW-16 exposed-pad package (Case 751AG), while SO-8 variants (e.g., NCV8501D33G) use Case 751-07. Pin functions differ: SOW-16 has dedicated DELAY and RESET pins, whereas SO-8 combines some functions. PCB layout and footprint are not interchangeable.
NCV8501PDW33G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 125 µA
- Current - Supply (Max):
- 19 mA
- PSRR:
- -
- Control Features:
- Enable, Reset
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
NCV8501PDW33G FAQ
1.How can I place an order for NCV8501PDW33G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8501PDW33G 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 NCV8501PDW33G reliable?
The price and inventory of NCV8501PDW33G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8501PDW33G is usually 5 days.
3.What payment methods are accepted for NCV8501PDW33G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8501PDW33G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8501PDW33G?
NCV8501PDW33G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8501PDW33G 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 NCV8501PDW33G?
For technical support, including NCV8501PDW33G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8501PDW33G requirements.
6.How does Aetrix verify that NCV8501PDW33G is sourced from the original manufacturer or authorized distributors?
All NCV8501PDW33G 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 NCV8501PDW33G meets industry standards.
7.What is the process for return or replacement of NCV8501PDW33G?
All NCV8501PDW33G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8501PDW33G, 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 NCV8501PDW33G part is unused and in its original packaging.
Return procedure for NCV8501PDW33G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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