My Inquiry
My Account
onsemi NCV8772CDS334R4G
- Part No.:
- NCV8772CDS334R4G
- Manufacturer:
- onsemi
- Package:
- -
- Datasheet:
-
NCV8772CDS334R4G.pdf
- Description:
- IC REG LINEAR LDO 3.3V D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:390
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCV8772CDS334R4G from onsemi is a 3.3 V, 350 mA automotive-grade LDO regulator with integrated reset output (RO), enable (EN) control, ultra-low quiescent current (18 µA typ), and AEC-Q100 Grade 1 qualification. It delivers stable power to microprocessors in body control modules and instrument clusters under harsh 40 V input conditions.
For engineers reviewing the NCV8772CDS334R4G datasheet, pinout, applications, or equivalent options, key selection criteria include its 16 ms reset delay, ±2% output accuracy, reverse output current protection, and D2PAK-5 thermal performance (RJA = 42.3 °C/W).
Technical Context
The NCV8772CDS334R4G integrates a precision voltage reference, error amplifier, pass transistor, and dedicated reset comparator with 93% VOUT threshold and 2% hysteresis. Its enable logic accepts TTL-compatible inputs (VTH(EN) = 0.8–2.5 V), and RO is an open-drain output requiring external pull-up for 3.3 V variants.
Designed for battery-permanent applications, it maintains regulation down to 4.5 V input and supports wide-output-capacitor ESR stability (0.01–100 Ω). Thermal shutdown activates at 175 °C with 10 °C hysteresis, and current limit is 400–1100 mA depending on input voltage and temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±2% - ensures reliable microprocessor VDD supply across −40 °C to +150 °C junction range |
| Max Output Current | 350 mA - sufficient for MCU core + peripherals in automotive body electronics |
| Quiescent Current | 18 µA typical - enables <1 µA system sleep current when EN = low |
| Input Voltage Range | 4.5 V to 40 V - withstands load dump transients per ISO 16750-2 Class C |
| Reset Delay Time | 16 ms - provides deterministic power-on reset timing for safety-critical boot sequences |
| Dropout Voltage | 440 mV max at 350 mA - allows operation with minimal headroom in 5 V rail systems |
| PSRR | 75 dB @ 100 Hz - suppresses alternator ripple and switching noise in vehicle electrical systems |
Pinout & Package
D2PAK-5 package (Case 936A) with exposed thermal tab for enhanced heat dissipation; footprint optimized for 1 oz copper, 645 mm² PCB area yielding RJA = 42.3 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1. Vin | Positive input supply | Accepts up to 40 V DC; requires 0.1 µF ceramic decoupling capacitor placed adjacent to pin |
| 2. RO | Reset output | Open-drain signal; sinks ≤1.3 mA at 0.25 V; requires external 5–100 kΩ pull-up to VOUT for 3.3 V variant |
| 3 & Tab. GND | Power ground | Primary return path and thermal conduction node; must be connected to large copper pour |
| 4. EN | Enable input | Active-high logic; draws ≤5 µA; disables regulator and reduces IQ to ≤1 µA when pulled low |
| 5. Vout | Regulated output | 3.3 V ±2%; requires ≥1 µF output capacitor with ESR < 5 Ω for stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C ambient operation in automotive powertrain and chassis systems |
| Reverse output current protection | Blocks backfeed from VOUT to VIN when input is absent - prevents battery drain in multi-rail systems |
| EMC-compliant design | Meets automotive electromagnetic compatibility requirements without external filtering components |
| Wide-COUT/ESR stability | Stable with 1–100 µF ceramic or tantalum capacitors and ESR from 0.01 Ω to 100 Ω |
| Integrated thermal shutdown | Self-protects at 175 °C with 10 °C hysteresis - avoids latch-up during sustained overload |
Applications
| Body Control Module | Instruments and Clusters |
|---|---|
Use Scenario: Powering door module MCUs that remain active during vehicle sleep mode. IC Role / Device Role / Timing Role: Primary 3.3 V LDO with reset signaling to coordinate wake-up sequence and prevent brownout-induced firmware corruption. Use Value: 18 µA quiescent current minimizes parasitic battery drain; 16 ms reset delay ensures clean processor initialization after wake. | Use Scenario: Supplying display controller and CAN interface ICs in digital instrument clusters. IC Role / Device Role / Timing Role: Regulated 3.3 V source with RO-driven reset assertion during ignition cycling. Use Value: 40 V input rating handles load dump; ±2% accuracy maintains display timing integrity across temperature. |
| Occupant Protection Systems | Powertrain Control Units |
Use Scenario: Providing bias to airbag sensor signal conditioning circuitry in always-on crash detection paths. IC Role / Device Role / Timing Role: Safety-relevant power supervisor with fail-safe reset output tied to microcontroller watchdog. Use Value: AEC-Q100 Grade 1 qualification and reverse current protection ensure reliability in critical life-safety subsystems. | Use Scenario: Powering engine control unit (ECU) communication interfaces during key-off monitoring. IC Role / Device Role / Timing Role: Low-IQ auxiliary regulator enabling CAN bus wake-on-frame functionality. Use Value: 1 µA disable current meets OEM requirements for <5 µA total module sleep current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8772CDT334RKG | DPAK-5 package (RJA = 47.1 °C/W); same electrical specs and 16 ms reset delay | Lower thermal performance; suitable for lower-power or space-constrained layouts where D2PAK mounting is impractical | Select when board real estate limits use of D2PAK-5 or when existing DPAK-5 footprint reuse is required |
| TLV73333PDBVR | 300 mA output, 45 µA IQ, no reset function, non-automotive grade | Lacks AEC-Q100 qualification, RO output, and 40 V input capability - limited to infotainment or non-safety sub-systems | Consider only for cost-sensitive, non-safety-critical interior modules where reset signaling is handled externally |
Compared with NCV8772CDT334RKG, the NCV8772CDS334R4G offers superior thermal dissipation (42.3 vs. 47.1 °C/W) for high-ambient under-hood applications; versus TLV73333PDBVR, it provides automotive-grade robustness, integrated reset, and battery-direct operation - essential for functional safety compliance.
Availability
NCV8772CDS334R4G is available at Aetrix Electronics and suitable for body control modules, instrument clusters, occupant protection systems, and powertrain control units requiring stable component supply across extended temperature and voltage ranges.
Supply support for NCV8772CDS334R4G 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 focused on energy-efficient electronics for automotive, industrial, cloud, and IoT applications.
The NCV8772CDS334R4G belongs to onsemi's automotive power management portfolio, engineered specifically for microprocessor power delivery in severe environments where ultra-low quiescent current, reset supervision, and AEC-Q100 reliability are mandatory.
FAQ
What is the reset threshold voltage for NCV8772CDS334R4G?
The NCV8772CDS334R4G uses a 93% output voltage reset threshold, meaning RO asserts low when VOUT drops below 3.069 V (93% of 3.3 V). This threshold is fixed for all NCV8772CDSxx variants and has 2% hysteresis to prevent chatter during recovery. The device does not monitor input voltage directly for reset; it responds solely to regulated output deviation.
Does NCV8772CDS334R4G require an external pull-up resistor on the RO pin?
Yes, NCV8772CDS334R4G requires an external pull-up resistor on the RO pin because it is a 3.3 V variant with open-drain RO output. Unlike the 5 V version (which includes a 30 kΩ internal pull-up), this part needs a 5–100 kΩ resistor connected between RO and VOUT to ensure valid logic-high levels during normal operation.
What is the maximum power dissipation of NCV8772CDS334R4G at 25 °C ambient?
With a D2PAK-5 package mounted on 645 mm² of 1 oz copper FR4 PCB, the NCV8772CDS334R4G has RJA = 42.3 °C/W. At TJ(max) = 150 °C and TA = 25 °C, maximum power dissipation is 2.95 W. This supports continuous 350 mA output at ~3.5 V dropout (e.g., VIN = 6.8 V), assuming negligible IQ contribution.
Can NCV8772CDS334R4G operate with a 10 µF ceramic output capacitor?
Yes, NCV8772CDS334R4G is stable with 10 µF ceramic output capacitors. Its design eliminates minimum ESR requirements, and Figure 25 in the datasheet confirms stability across 0.01–100 Ω ESR for output currents up to 350 mA. A 10 µF X7R ceramic capacitor improves load transient response and noise rejection compared to the minimum 1 µF recommendation.
Is NCV8772CDS334R4G compliant with RoHS and lead-free soldering standards?
Yes, NCV8772CDS334R4G is Pb-free and RoHS compliant, as indicated by the "G" suffix in the part number and confirmed in the ordering information table (page 13). It meets JEDEC J-STD-020 moisture sensitivity level 1 and supports standard reflow profiles per onsemi's Soldering and Mounting Techniques Reference Manual (SOLDERRM/D).
NCV8772CDS334R4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.875V @ 350mA
- Current - Output:
- 350mA
- Current - Quiescent (Iq):
- 29 µA
- Current - Supply (Max):
- 30 µA
- PSRR:
- 60dB (100Hz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- -
- Supplier Device Package:
- -
NCV8772CDS334R4G FAQ
1.How can I place an order for NCV8772CDS334R4G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8772CDS334R4G 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 NCV8772CDS334R4G reliable?
The price and inventory of NCV8772CDS334R4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8772CDS334R4G is usually 5 days.
3.What payment methods are accepted for NCV8772CDS334R4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8772CDS334R4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8772CDS334R4G?
NCV8772CDS334R4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8772CDS334R4G 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 NCV8772CDS334R4G?
For technical support, including NCV8772CDS334R4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8772CDS334R4G requirements.
6.How does Aetrix verify that NCV8772CDS334R4G is sourced from the original manufacturer or authorized distributors?
All NCV8772CDS334R4G 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 NCV8772CDS334R4G meets industry standards.
7.What is the process for return or replacement of NCV8772CDS334R4G?
All NCV8772CDS334R4G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8772CDS334R4G, 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 NCV8772CDS334R4G part is unused and in its original packaging.
Return procedure for NCV8772CDS334R4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCV8772CDS334R4G 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…
