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onsemi NCV8501PDW25R2G
- Part No.:
- NCV8501PDW25R2G
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
NCV8501PDW25R2G.pdf
- Description:
- IC REG LINEAR 2.5V 150MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
NCV8501PDW25R2G from onsemi is a 2.5 V, 150 mA automotive-grade micropower LDO linear regulator with ENABLE, active RESET (with programmable delay), and FLAG monitor functions. It delivers ±2.0% output accuracy, 0.6 V max dropout at full load, and 90 µA quiescent current at 100 µA load - optimized for battery-powered microprocessor systems in harsh environments.
For engineers reviewing the NCV8501PDW25R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its −15 V reverse voltage tolerance, +60 V peak transient rating, RESET operation down to 1.0 V output, early-warning FLAG functionality, and SOW-16 exposed-pad thermal performance.
Technical Context
The NCV8501PDW25R2G integrates a precision bandgap reference, error amplifier, current-limit sensing, thermal shutdown, and independent low-voltage detection circuitry for RESET and FLAG. Its RESET function features hysteresis and latched behavior, while DELAY timing is capacitor-programmable via external charge/discharge control.
It supports fixed 2.5 V output (non-adjustable), operates from −40 °C to +150 °C junction temperature, withstands automotive load dump transients, and includes reverse-battery, short-circuit, and thermal overload protection - all validated per AEC-Q100 requirements for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2.0% - ensures stable MCU core/logic supply within tight regulation window across temperature and load. |
| Max Output Current | 150 mA - sufficient for low-power microcontrollers, sensors, and CAN transceivers without external pass devices. |
| Dropout Voltage | 600 mV max at 150 mA - enables operation with VIN as low as 3.1 V while maintaining 2.5 V output. |
| Quiescent Current | 90 µA at 100 µA load - extends battery life in always-on automotive modules (e.g., body control units). |
| RESET Threshold | 2.25 V (low) / 2.28 V (high) - triggers reliable reset before system brownout, with hysteresis preventing chatter. |
| FLAG Monitor Threshold | 1.20 V typical on MON pin - provides early warning ~10–100 ms before RESET, allowing graceful MCU shutdown. |
| Transient Tolerance | +60 V peak (46 V load dump), −15 V reverse battery - meets ISO 7637-2 Pulse 5a/b and reverse-polarity requirements. |
Pinout & Package
SOW-16 exposed pad (Case 751AG) package with thermal enhancement - 16-pin wide-body SOIC with copper-exposed thermal pad on underside for improved heat dissipation in high-ambient automotive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply pin - accepts 4.5 V to 45 V DC, handles +60 V transients and −15 V reverse polarity. |
| 2 | MON | Monitor input for FLAG comparator - externally biased to set early-warning threshold; connect to VOUT if unused. |
| 3 | ENABLE | Active-high enable control - powers up regulator when >2.55 V (20 °C); internal pull-down ensures safe default-off state. |
| 4–6, 10–12, 14–15 | NC | No-connect pins - must remain unconnected; no internal circuitry or bonding. |
| 7 | GND | Power ground - all GND pins (7, 13) must be tied to common system ground plane for stability and EMI control. |
| 8 | DELAY | Reset timing capacitor node - sources 2.5 µA typical to external CDELAY; discharge path enables latched reset recovery. |
| 9 | RESET | Open-collector active-low reset output - valid down to VOUT = 1.0 V; requires external pull-up resistor. |
| 10 | FLAG | Open-collector early-warning output - pulls low when MON voltage drops below 1.20 V, signaling imminent RESET. |
| 11 | VOUT | Regulated 2.5 V output - capable of 150 mA; requires ≥10 µF ceramic output capacitor for stability per datasheet. |
| 12 | NC | No-connect - electrically isolated; no internal connection or function. |
| 13 | GND | Secondary ground pin - must be connected to same ground net as Pin 7 to minimize ground bounce and improve PSRR. |
| 14–16 | NC | No-connect pins - no internal bond wires or circuitry; leave floating or ground only if required by PCB layout rules. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualified (NCV prefix) | Qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C ambient), with site and change control for production traceability. |
| Programmable Reset Delay | External capacitor on DELAY pin sets precise reset timeout (e.g., 23.8 ms with 33 nF), enabling configurable power-up sequencing. |
| Early Warning FLAG Monitor | Independent comparator triggers FLAG before RESET, giving MCU time to save state or complete critical tasks prior to shutdown. |
| Pb-Free & RoHS Compliant | Meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3), reflow-compatible up to 260 °C peak, halogen-free construction. |
| Robust Fault Protection | Integrated reverse-battery, short-circuit, thermal overload, and load-dump protection eliminates need for external protection components. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Camera Power |
|---|---|
|
Use Scenario: Powering microcontroller, LIN transceiver, and door-lock actuators in vehicle body electronics under cold-crank and load-dump conditions. IC Role / Device Role / Timing Role: Primary 2.5 V LDO supplying MCU I/O and logic rails; RESET ensures deterministic boot after ignition cycle; FLAG warns of battery sag before engine start. Use Value: Enables reliable operation during 4.0 V cold-crank events and 60 V load dumps without external TVS or reset ICs - reducing BOM count and board space. |
Use Scenario: Providing clean, regulated 2.5 V supply to image sensor interface and ISP in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Low-noise, low-IQ power source; FLAG monitors VOUT decay during thermal throttling; RESET forces controlled sensor shutdown before thermal lockup. Use Value: Prevents image corruption or frame loss during voltage sags by triggering firmware-level recovery 10–50 ms before hardware reset - improving system robustness. |
| Telematics Control Unit (TCU) | Electronic Parking Brake (EPB) Controller |
|
Use Scenario: Supplying 2.5 V to cellular modem baseband processor and GNSS receiver in always-connected infotainment gateways. IC Role / Device Role / Timing Role: Always-on LDO with ENABLE controlled by host MCU; FLAG signals impending brownout during battery disconnect; RESET asserts on deep discharge. Use Value: Maintains modem registration during brief battery interruptions and enables graceful network logout before power loss - avoiding SIM deactivation or data loss. |
Use Scenario: Powering safety-critical MCU and motor driver logic in EPB systems where functional safety (ASIL-B) compliance is required. IC Role / Device Role / Timing Role: Redundant 2.5 V supply with dual monitoring paths (RESET + FLAG); monitored by ASIL-B watchdog; thermal shutdown prevents overheating during brake hold. Use Value: Supports diagnostic coverage for ISO 26262 by providing independent voltage fault detection channels - simplifying FMEDA analysis and safety case documentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8501D25R2G | Same electrical specs but in SO-8 (Case 751-07) package - no exposed thermal pad, higher RJA (165 °C/W vs. 56 °C/W). | Limited to lower-power or lower-ambient applications; unsuitable for sustained 150 mA in >85 °C environments. | Select NCV8501D25R2G only for cost-sensitive, non-thermal-constrained designs where PCB space allows SO-8 footprint. |
| TLV73325PDBVR | 2.5 V, 300 mA LDO with 65 µA IQ, but lacks RESET/FLAG/DELAY and automotive qualification (not NCV-prefix). | No built-in monitoring or reset functions - requires external supervisor IC for safety-critical automotive use. | Choose TLV73325PDBVR only for non-automotive, non-safety applications where higher current and lower IQ outweigh missing fault-monitoring features. |
Compared with NCV8501D25R2G, the NCV8501PDW25R2G offers superior thermal performance and automotive reliability; compared with TLV73325PDBVR, it trades off raw current capability for integrated functional safety features essential in automotive ECUs.
Availability
NCV8501PDW25R2G is available at Aetrix Electronics and suitable for automotive body electronics, ADAS camera modules, telematics gateways, and electronic parking brake controllers requiring stable component supply under AEC-Q100 conditions.
Supply support for NCV8501PDW25R2G 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 silicon solutions for automotive, industrial, cloud, and IoT applications.
The NCV8501PDW25R2G belongs to onsemi's NCV8501 series of automotive LDO regulators - designed specifically for microprocessor power management in harsh environments, emphasizing fault resilience, extended temperature operation, and functional monitoring.
FAQ
What is the maximum input voltage rating for NCV8501PDW25R2G?
The NCV8501PDW25R2G supports a continuous DC input voltage range of −15 V to +45 V, with peak transient tolerance up to +60 V (per ISO 7637-2 Pulse 5a). This makes it suitable for 12 V and 24 V automotive systems subject to load dump and reverse-battery faults. Operation above 45 V is not guaranteed and may cause permanent damage.
Does NCV8501PDW25R2G support adjustable output voltage?
No, the NCV8501PDW25R2G is a fixed 2.5 V output variant. Adjustable versions (e.g., NCV8501PDWADJR2G) use the VADJ pin and external resistor divider, but this part has no VADJ pin and is internally trimmed to 2.5 V ±2.0%. Its pinout matches the fixed-output configuration shown in Figure 6 of the datasheet.
How does the FLAG monitor function work in NCV8501PDW25R2G?
The FLAG monitor in NCV8501PDW25R2G uses an on-chip comparator referenced to the bandgap (1.20 V typical) that monitors the MON pin voltage. When MON falls below the threshold (e.g., due to VOUT sag), FLAG pulls low - providing early warning to the MCU before RESET activates. The MON pin can be tied directly to VOUT or biased externally for custom trip points.
What thermal performance can be expected from the SOW-16 exposed pad package of NCV8501PDW25R2G?
The NCV8501PDW25R2G in SOW-16 exposed pad (Case 751AG) achieves RJA = 56 °C/W and RJC = 15 °C/W when mounted on 600 mm² of 2 oz. copper. At 150 mA and 14 V input, power dissipation is ~1.7 W; with proper PCB copper area, junction temperature stays below 150 °C even at +85 °C ambient - meeting AEC-Q100 Grade 1 requirements.
Is NCV8501PDW25R2G pin-compatible with other NCV8501 variants in the same package?
Yes, all NCV8501 variants in SOW-16 exposed pad (e.g., NCV8501PDW33R2G, NCV8501PDW50R2G) share identical pinout and footprint per Package Pin Description (page 6, Fixed Output column). Only the output voltage and associated internal trim differ - enabling drop-in replacement across voltage options without PCB redesign.
NCV8501PDW25R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 2.5V
- 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
NCV8501PDW25R2G FAQ
1.How can I place an order for NCV8501PDW25R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8501PDW25R2G 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 NCV8501PDW25R2G reliable?
The price and inventory of NCV8501PDW25R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8501PDW25R2G is usually 5 days.
3.What payment methods are accepted for NCV8501PDW25R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8501PDW25R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8501PDW25R2G?
NCV8501PDW25R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8501PDW25R2G 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 NCV8501PDW25R2G?
For technical support, including NCV8501PDW25R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8501PDW25R2G requirements.
6.How does Aetrix verify that NCV8501PDW25R2G is sourced from the original manufacturer or authorized distributors?
All NCV8501PDW25R2G 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 NCV8501PDW25R2G meets industry standards.
7.What is the process for return or replacement of NCV8501PDW25R2G?
All NCV8501PDW25R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8501PDW25R2G, 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 NCV8501PDW25R2G part is unused and in its original packaging.
Return procedure for NCV8501PDW25R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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