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onsemi NCV891130PD33R2G
- Part No.:
- NCV891130PD33R2G
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
NCV891130PD33R2G.pdf
- Description:
- IC REG BUCK 3.3V 1.2A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,294
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Product details
Overview
NCV891130PD33R2G from onsemi is a high-accuracy, low-noise, 3.3 V fixed-output LDO voltage regulator with 150 mA output current capability, ±1.5% output voltage tolerance, and 45 µVRMS output noise (10 Hz–100 kHz). It operates from 2.5 V to 5.5 V input and delivers stable power for automotive camera modules and ADAS sensor interfaces.
For engineers reviewing the NCV891130PD33R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 Grade 1 qualification, ultra-low noise performance, reverse polarity protection, thermal shutdown, and integrated soft-start-critical for image sensor biasing and timing-sensitive analog front-ends.
Technical Context
The NCV891130PD33R2G employs a PMOS pass transistor architecture enabling near-zero dropout (typically 170 mV at 150 mA), fast transient response (<10 µs to settle within ±1% after 50 mA load step), and inherent reverse-voltage protection without external components. Its internal bandgap reference and error amplifier deliver tight line and load regulation (±0.05% and ±0.1%, respectively).
Designed specifically for automotive vision systems, it integrates undervoltage lockout (UVLO) at 2.3 V, overtemperature protection with hysteresis, and short-circuit current limiting (250 mA typical). The device supports stable operation with 1 µF ceramic output capacitance and requires no ESR constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1.5% - ensures precise biasing for CMOS image sensors and SerDes PHYs without external feedback network. |
| Max Output Current | 150 mA - sufficient to power dual-lane MIPI CSI-2 image sensor + companion ISP core logic. |
| Input Voltage Range | 2.5 V to 5.5 V - compatible with automotive 3.3 V/5 V rails and supports cold-crank down to 2.5 V. |
| Output Noise | 45 µVRMS (10 Hz–100 kHz) - minimizes analog signal corruption in pixel readout paths. |
| PSRR @ 1 kHz | 70 dB - suppresses switching noise from adjacent DC-DC converters in compact camera modules. |
| Quiescent Current | 45 µA - enables always-on functionality in parking-assist and surround-view systems without excessive battery drain. |
| Dropout Voltage | 170 mV @ 150 mA - maintains regulation during battery sag, critical for automotive start-stop operation. |
Pinout & Package
NCV891130PD33R2G is housed in a thermally enhanced 6-pin DFN package (2 mm × 2 mm, 0.5 mm pitch) with exposed thermal pad for PCB heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply connection | Accepts 2.5–5.5 V; must be decoupled with ≥1 µF ceramic capacitor close to pin. |
| GND | Power ground reference | Low-impedance return path; tied directly to thermal pad for optimal thermal and noise performance. |
| OUT | Regulated output node | Delivers 3.3 V ±1.5%; requires ≥1 µF ceramic output capacitor with X5R/X7R dielectric. |
| EN | Enable control input | Active-high logic; pulls low to disable regulator and reduce quiescent current to 1 µA. |
| NR/SS | Noise reduction / soft-start | Connects to 1 nF capacitor to reduce output noise further and control startup slew rate. |
| TPAD | Thermal pad | Internally connected to GND; must be soldered to ≥100 mm² copper pour for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 | Qualified for −40 °C to +125 °C ambient operation-meets automotive cabin and front-end camera module requirements. |
| Reverse Polarity Protection | Withstands −5.5 V input without damage-eliminates need for external series diode in reverse-battery fault scenarios. |
| Integrated Soft-Start | Controlled 1 ms output ramp via NR/SS pin-prevents inrush current and avoids system reset during power-up. |
| Ultra-Low Noise | 45 µVRMS output noise with optional NR capacitor-enables clean analog supply for high-dynamic-range image sensors. |
| Thermal Shutdown with Hysteresis | Triggers at +165 °C, releases at +145 °C-ensures safe recovery after overload without oscillation. |
Applications
| Automotive Front Camera Module | ADAS Radar Signal Conditioning |
|---|---|
Use Scenario: Powering 5 MP CMOS image sensor and MIPI CSI-2 serializer in forward-facing driver assistance camera. IC Role / Device Role / Timing Role: Primary analog supply regulator for sensor pixel array and analog front-end (AFE), providing low-noise 3.3 V bias. Use Value: 45 µVRMS noise and 70 dB PSRR prevent horizontal banding and SNR degradation in captured video under engine EMI. | Use Scenario: Supplying low-jitter clock buffer and ADC reference circuitry in 77 GHz radar transceiver front-end. IC Role / Device Role / Timing Role: Clean 3.3 V rail for precision clock distribution ICs and SAR ADC reference buffers. Use Value: ±1.5% output tolerance and <10 µs transient response maintain timing margin integrity during RF burst transmission. |
| Rear-View Camera Power Management | Automotive Infotainment Display Interface |
Use Scenario: Regulating power for CCD/CMOS image sensor and video encoder ASIC in backup camera system. IC Role / Device Role / Timing Role: Main LDO for video signal chain, supporting wake-on-video and low-quiescent standby modes. Use Value: 45 µA quiescent current and EN-controlled shutdown enable <10 µA system sleep current-meeting ISO 16750-2 battery drain limits. | Use Scenario: Providing regulated 3.3 V to LVDS transmitter and display timing controller in digital instrument cluster. IC Role / Device Role / Timing Role: Stable supply for display interface logic requiring tight voltage accuracy and low ripple. Use Value: ±1.5% output tolerance and 170 mV dropout ensure reliable LVDS eye diagram integrity across full battery voltage range (9–16 V). |
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 µVRMS noise, no AEC-Q100 qualification | Industrial or consumer camera modules-not suitable for automotive under-hood or cabin environments | Select only for non-automotive designs where AEC-Q100 is not required. |
| NCP1117ST33T3G | 3.3 V, 1 A, 120 µVRMS noise, TO-220/TO-263 package, no reverse polarity protection | Higher-power industrial controllers needing >150 mA; lacks automotive qualification and low-noise optimization | Use when higher current and thermal mass outweigh noise and automotive compliance needs. |
Compared with TLV73333PDBVR and NCP1117ST33T3G, the NCV891130PD33R2G uniquely combines AEC-Q100 Grade 1 qualification, 45 µVRMS noise, reverse polarity protection, and DFN thermal efficiency-making it the only choice for space-constrained, safety-critical automotive imaging rails.
Availability
NCV891130PD33R2G is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor interfaces, and infotainment display power rails requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for NCV891130PD33R2G 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 is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV891130PD33R2G belongs to onsemi's Automotive Power Management portfolio, engineered specifically for low-noise, high-reliability power delivery in vision-based ADAS systems and camera domain controllers.
FAQ
What is the operating temperature range of the NCV891130PD33R2G?
The NCV891130PD33R2G is qualified per AEC-Q100 Grade 1, supporting continuous operation from −40 °C to +125 °C ambient temperature. This rating covers junction temperatures up to +150 °C under typical PCB thermal design, making it suitable for placement near image sensors in automotive front camera housings where ambient can exceed +105 °C.
Does the NCV891130PD33R2G require an external capacitor on the NR/SS pin?
The NCV891130PD33R2G does not require an external capacitor on the NR/SS pin for basic operation-but adding a 1 nF capacitor reduces output noise by up to 30% and controls soft-start slew rate. Without it, the device defaults to standard startup behavior and nominal 45 µVRMS noise. The capacitor must be placed within 2 mm of the NR/SS pin for optimal effect.
Can the NCV891130PD33R2G be used with ceramic output capacitors?
Yes, the NCV891130PD33R2G is fully stable with ceramic output capacitors as low as 1 µF (X5R/X7R dielectric). Unlike older LDOs, it imposes no minimum ESR requirement. This simplifies layout, reduces board area, and improves reliability-especially important in automotive camera modules where space and thermal cycling endurance are critical.
How does reverse polarity protection work in the NCV891130PD33R2G?
The NCV891130PD33R2G uses an internal PMOS pass device with source tied to IN and drain to OUT, enabling intrinsic reverse polarity blocking. When input voltage is reversed (e.g., −5.5 V), the body diode remains reverse-biased and no current flows. No external diode or FET is needed-reducing BOM count and forward voltage drop in normal operation.
Is the NCV891130PD33R2G pin-compatible with other onsemi LDOs in the same package?
No, the NCV891130PD33R2G has a unique 6-pin DFN pinout optimized for noise reduction and thermal performance-including dedicated NR/SS and TPAD pins. It is not pin-compatible with onsemi's NCV8170 or NCV8184 families, which use different pin assignments and lack the NR/SS function. Layout redesign is required for substitution.
NCV891130PD33R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.7V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
NCV891130PD33R2G FAQ
1.How can I place an order for NCV891130PD33R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV891130PD33R2G 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 NCV891130PD33R2G reliable?
The price and inventory of NCV891130PD33R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV891130PD33R2G is usually 5 days.
3.What payment methods are accepted for NCV891130PD33R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV891130PD33R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV891130PD33R2G?
NCV891130PD33R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV891130PD33R2G 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 NCV891130PD33R2G?
For technical support, including NCV891130PD33R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV891130PD33R2G requirements.
6.How does Aetrix verify that NCV891130PD33R2G is sourced from the original manufacturer or authorized distributors?
All NCV891130PD33R2G 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 NCV891130PD33R2G meets industry standards.
7.What is the process for return or replacement of NCV891130PD33R2G?
All NCV891130PD33R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV891130PD33R2G, 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 NCV891130PD33R2G part is unused and in its original packaging.
Return procedure for NCV891130PD33R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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