My Inquiry
My Account
onsemi NCV8501D33G
- Part No.:
- NCV8501D33G
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
NCV8501D33G.pdf
- Description:
- IC REG LINEAR 3.3V 150MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,818
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCV8501D33G from onsemi is a 3.3 V, 150 mA automotive-grade micropower LDO linear regulator with integrated active RESET (with programmable delay), ENABLE control, and FLAG monitor for early-warning reset signaling. It features ±2.0% output accuracy, 0.6 V max dropout at full load, and 90 µA quiescent current at light load - optimized for battery-powered microprocessor systems in harsh environments.
For engineers reviewing the NCV8501D33G datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SO-8 pin mapping, real-world automotive and embedded use cases, and two validated alternative parts - all grounded in the official onsemi NCV8501 Series datasheet (Rev. 30, Feb. 2026).
Technical Context
The NCV8501D33G implements a bandgap-referenced error amplifier with current-limit and thermal shutdown protection. Its RESET circuit operates down to 1.0 V output voltage and includes hysteresis (0.97×/0.98× VOUT thresholds) to prevent oscillation during brownout recovery. The FLAG comparator monitors the MON pin against a 1.20 V typical threshold with 20–100 mV hysteresis, enabling pre-reset warning to host microcontrollers.
ENABLE logic uses an internal pull-down and supports direct battery connection with load-dump tolerance up to +60 V transient. The DELAY pin sources 2.5 µA (typ) to charge an external capacitor, setting reset delay time per tDELAY = CDELAY × (VDT − VRESET_LOW) / ICHARGE. All functions operate across −40 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2.0% (2.45–3.399 V over temp/load) |
| Max Output Current | 150 mA - supports mid-power MCU cores and peripherals without external pass devices |
| Dropout Voltage | 600 mV max at 150 mA - enables operation with VIN as low as 3.9 V while maintaining regulation |
| Quiescent Current | 90 µA at 100 µA load - extends battery life in always-on automotive modules |
| RESET Threshold | 3.00 V (rising), 2.97 V (falling) - ensures reliable reset assertion before critical MCU undervoltage lockout |
| FLAG Monitor Threshold | 1.20 V typical on MON pin - allows configurable early-warning window via external resistor divider |
| Operating Temp Range | −40 °C to +150 °C junction - qualified for under-hood automotive applications per AEC-Q100 stress requirements |
Pinout & Package
NCV8501D33G is housed in an SOIC-8 NB (Case 751-07) Pb-free package measuring 4.9 × 3.9 × 1.5 mm, with standard gull-wing leads and 1.27 mm pitch. Thermal resistance is RJA = 165 °C/W (junction-to-ambient, still air).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input voltage supply | Accepts −15 V to +45 V DC; withstands +60 V load dump transients |
| 2 - MON | Monitor input | Connects to resistor divider for FLAG trip point; 1.20 V typical threshold |
| 3 - ENABLE | Active-high enable | Pulls up internally; 2.55 V typical turn-on threshold; tolerates >10 V with series resistor |
| 4 - DELAY | Reset delay timing | Sources 2.5 µA (typ) to external capacitor; sets RESET assertion delay |
| 5 - GND | Ground reference | All ground pins must be connected to system ground plane for stability and EMI control |
| 6 - RESET | Open-collector reset output | Active-low signal valid down to VOUT = 1.0 V; requires external pull-up |
| 7 - FLAG | Early-warning flag output | Open-collector output; asserts low when MON falls below threshold |
| 8 - VOUT | Regulated output | 3.3 V ±2.0%; stable with 10 µF ceramic output capacitor (min) |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | NCV prefix denotes AEC-Q100-compliant design with site/change control and extended temperature support |
| Integrated fault protection | Reverse battery (−15 V), short-circuit, thermal overload, and +60 V load dump immunity |
| Programmable reset delay | External capacitor on DELAY pin sets precise reset timeout - eliminates need for discrete RC timing |
| Early-warning FLAG signaling | Allows microprocessor to complete critical tasks before RESET assertion - prevents data corruption |
| Low-IQ sleep mode | 12 µA typical IQ when ENABLE = 0 V - enables ultra-low-power standby in always-on modules |
| EMC-optimized design | Validated for automotive EMC conditions including ISO 11452-2/4 and CISPR 25 Class 5 |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Camera Power |
|---|---|
|
Use Scenario: Powering MCU, CAN transceiver, and sensor interface in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying core logic; RESET ensures deterministic boot after battery reconnection or voltage sag. Use Value: ±2.0% output accuracy maintains MCU clock stability; 150 mA capacity supports dual-core MCUs with CAN FD PHY. |
Use Scenario: Regulating power for image signal processor (ISP) and MIPI CSI-2 interface in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Clean 3.3 V rail with FLAG-triggered graceful shutdown before RESET - preserves last-frame buffer integrity. Use Value: 90 µA quiescent current minimizes parasitic drain during vehicle sleep; load-dump tolerance avoids field failures. |
| Telematics Control Unit (TCU) | Engine Control Unit (ECU) Subsystem Monitoring |
|
Use Scenario: Supplying GPS/GNSS receiver, cellular modem, and secure element in connected vehicle gateways. IC Role / Device Role / Timing Role: Enables/disables subsystems via ENABLE; FLAG warns of impending brownout before LTE modem disconnects. Use Value: DELAY-programmed reset ensures modem completes packet transmission before power loss - avoids network registration failure. |
Use Scenario: Providing regulated 3.3 V to diagnostic microcontroller and analog front-end monitoring engine sensors (MAP, TPS, O2). IC Role / Device Role / Timing Role: RESET signals main ECU of power anomaly; MON/FLAG detects pre-failure voltage droop in 12 V rail. Use Value: Operates reliably at +150 °C junction temperature - suitable for placement near engine bay electronics. |
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, 50 µA IQ, no RESET/FLAG; SOT-23-5 package | Lacks integrated reset monitoring; requires external supervisor IC for comparable functionality | Choose for cost-sensitive, space-constrained designs where reset logic is handled elsewhere |
| TPS7B6733QPWPRQ1 | 3.3 V, 150 mA, 120 µA IQ, integrated RESET and watchdog; HTSSOP-8 package | Includes watchdog timer; higher IQ; different pinout (no DELAY pin; RESET delay fixed internally) | Choose when watchdog supervision is required alongside reset, and board layout allows HTSSOP-8 footprint |
Compared with TLV73333PDBVR and TPS7B6733QPWPRQ1, the NCV8501D33G uniquely combines programmable reset delay, early-warning FLAG, and −40 °C to +150 °C operation in a standard SO-8 - making it optimal for automotive subsystems requiring deterministic power sequencing and fail-safe shutdown.
Availability
NCV8501D33G is available at Aetrix Electronics and suitable for automotive body electronics, ADAS camera modules, and telematics control units requiring stable component supply, long-term lifecycle support, and AEC-Q100-qualified performance.
Supply support for NCV8501D33G 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, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The NCV8501D33G belongs to the NCV8501 Series of automotive-grade micropower LDOs designed specifically for microprocessor power management in harsh environments - emphasizing precision regulation, integrated supervisory functions, and robust fault protection.
FAQ
What is the maximum input voltage rating for NCV8501D33G?
The NCV8501D33G supports a continuous DC input voltage range of −15 V to +45 V. It also withstands peak transient voltages up to +60 V (e.g., automotive load dump events at VIN = 14 V), as specified in the Absolute Maximum Ratings table of the official datasheet.
Does NCV8501D33G require an external capacitor on the DELAY pin?
Yes - the DELAY pin on NCV8501D33G must be connected to an external capacitor to set the RESET assertion delay time. The device sources ~2.5 µA (typical) to charge this capacitor; delay time follows tDELAY = CDELAY × (VDT − VRESET_LOW) / ICHARGE. A 33 nF capacitor yields ~23.8 ms delay under typical conditions.
Can NCV8501D33G be used in non-automotive applications?
Yes - while NCV8501D33G carries the NCV prefix indicating automotive qualification (AEC-Q100, extended temp, change control), its electrical specs - 3.3 V ±2.0%, 150 mA, 90 µA IQ, RESET/FLAG/ENABLE - make it equally suitable for industrial IoT edge nodes, medical portable devices, and battery-backed instrumentation where reliability and supervisory features are critical.
What is the function of the MON pin on NCV8501D33G?
The MON pin on NCV8501D33G serves as the input to an on-chip comparator that triggers the FLAG output. When the voltage at MON falls below ~1.20 V (with 20–100 mV hysteresis), FLAG goes low - providing early warning to the microprocessor before RESET activates. It is typically connected to a resistor divider from VOUT to set the warning threshold.
Is NCV8501D33G pin-compatible with other variants in the NCV8501 family?
Yes - all SO-8 variants of the NCV8501 family (e.g., NCV8501D25G, NCV8501D50G, NCV8501DADJG) share identical pinout and footprint. The NCV8501D33G uses the fixed-output SO-8 configuration: PIN 1=VIN, PIN 2=MON, PIN 3=ENABLE, PIN 4=DELAY, PIN 5=GND, PIN 6=RESET, PIN 7=FLAG, PIN 8=VOUT.
NCV8501D33G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 8-SOIC
NCV8501D33G FAQ
1.How can I place an order for NCV8501D33G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8501D33G 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 NCV8501D33G reliable?
The price and inventory of NCV8501D33G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8501D33G is usually 5 days.
3.What payment methods are accepted for NCV8501D33G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8501D33G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8501D33G?
NCV8501D33G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8501D33G 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 NCV8501D33G?
For technical support, including NCV8501D33G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8501D33G requirements.
6.How does Aetrix verify that NCV8501D33G is sourced from the original manufacturer or authorized distributors?
All NCV8501D33G 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 NCV8501D33G meets industry standards.
7.What is the process for return or replacement of NCV8501D33G?
All NCV8501D33G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8501D33G, 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 NCV8501D33G part is unused and in its original packaging.
Return procedure for NCV8501D33G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCV8501D33G 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…
