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onsemi NCP3335AMN180R2G
- Part No.:
- NCP3335AMN180R2G
- Manufacturer:
- onsemi
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
NCP3335AMN180R2G.pdf
- Description:
- IC REG LINEAR 1.8V 500MA 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:255
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Product details
Overview
NCP3335AMN180R2G from onsemi is a fixed-output, 1.8 V, 500 mA ultra-high-accuracy low-dropout regulator with ±0.9% output voltage accuracy at 25 °C, 260 mV typical dropout at full load, and 33 µVRMS output noise (with 10 nF CNR). It operates from 2.6 V to 12 V input, requires only 1.0 µF output capacitance for stability, and supports MLCCs - deployed in portable DSP supplies, camera sensor rails, and low-noise display biasing.
For engineers reviewing the NCP3335AMN180R2G datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DFN10, MN suffix), validated thermal performance (θJA = 66 °C/W on 1-pad board), confirmed reverse bias protection (≤7 V differential), and real-world stability behavior across load, temperature, and capacitor ESR.
Technical Context
The NCP3335AMN180R2G uses a PMOS pass transistor architecture enabling ultra-low dropout and no minimum load requirement. Its internal reference is trimmed to ±0.9% over line/load/temperature, and its dedicated NR pin allows optional 10 nF capacitor connection to reduce output noise by ~35% (from 52 µVRMS to 33 µVRMS).
Stability is guaranteed with any capacitor type ≥1.0 µF, including low-ESR MLCCs, and the device integrates thermal shutdown (160 °C), current limiting (~900 mA short-circuit), and reverse bias protection that limits reverse current to ≤10 µA when VOUT − VIN ≤ 7 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±0.9% at 25 °C; ±1.5% over −40 °C to +125 °C - enables precision core/sensor rail without external feedback. |
| Max Output Current | 500 mA continuous; peak 830 mA - sufficient for FPGA I/O banks or multi-core microcontrollers. |
| Dropout Voltage | 260 mV typ. at 500 mA (2.9 VIN/1.8 VOUT) - supports operation down to 2.06 V input while maintaining regulation. |
| Quiescent Current | 9.0 mA at 500 mA load; 0.07 µA in shutdown - extends battery life in always-on subsystems. |
| Output Noise | 33 µVRMS (10 Hz–100 kHz) with 10 nF CNR - meets stringent analog/RF supply requirements for ADCs or RF front-ends. |
| Input Voltage Range | 2.6 V to 12 V - compatible with single-cell Li-ion (3.0–4.2 V), USB 5 V, and industrial 9–12 V rails. |
| Thermal Shutdown | 160 °C junction limit - protects against sustained overload or poor PCB heatsinking. |
Pinout & Package
Package: DFN10 (MN suffix), Case 485C, 3 mm × 3 mm × 0.8 mm, exposed thermal pad (EPAD) - optimized for high-power-density portable designs with low thermal resistance (θJA = 66 °C/W on 1-pad board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Vout | Regulated 1.8 V output; bypass to GND with ≥1.0 µF capacitor - primary power delivery node. |
| 3 | Sense | Output voltage sensing point; connected internally to Pins 1–2 - enables remote-sense compensation for PCB trace IR drop. |
| 4 | GND | Power ground reference; must be low-impedance connection to EPAD - critical for noise and thermal performance. |
| 5, 6 | NC | No connect - left floating per datasheet; no internal connection or function. |
| 7 | NR | Noise reduction; connects to 10 nF capacitor to GND - reduces broadband output noise by up to 35%. |
| 8 | SD | Active-low shutdown control; pulled high to Vin for normal operation - enables system-level power sequencing. |
| 9, 10 | Vin | Input supply (2.6–12 V); decoupled with ≥1.0 µF capacitor - feeds PMOS pass element and internal circuitry. |
| EPAD | Thermal Pad | Exposed copper pad; must be soldered to PCB GND plane - provides primary thermal path (θJL2 = 17 °C/W). |
Key Features
| Feature | Design Value |
|---|---|
| No minimum load requirement | Stable down to 0 mA output - eliminates need for wasteful bleed resistors in standby mode. |
| Capacitor agnostic stability | Works with 1.0 µF ceramic, tantalum, or polymer capacitors - simplifies BOM and layout across product variants. |
| Reverse bias protection | Blocks >99.99% of reverse current when VOUT > VIN (≤7 V differential) - prevents backfeed damage in multi-rail systems. |
| Ultra-low noise with NR pin | 33 µVRMS (10 Hz–100 kHz) with 10 nF CNR - suitable for noise-sensitive analog signal chains. |
| Wide input range & low dropout | Operates from 2.6 V input; 260 mV dropout at 500 mA - maximizes usable battery voltage in Li-ion applications. |
Applications
| Portable Camera Sensor Supply | DSP Core Voltage Rail |
|---|---|
Use Scenario: Powers CMOS image sensor analog/digital cores in compact camcorders and smartphone auxiliary cameras. IC Role / Device Role / Timing Role: Provides clean, stable 1.8 V bias for sensor pixel arrays and ADC front-ends. Use Value: 33 µVRMS noise and ±0.9% accuracy prevent image banding and color shift under varying load/temperature. |
Use Scenario: Supplies 1.8 V core voltage to low-power DSPs in voice-enabled IoT edge devices. IC Role / Device Role / Timing Role: Delivers regulated power during burst-mode processing with fast transient response. Use Value: 260 mV dropout extends runtime from single-cell Li-ion (down to 2.06 V) without brownout. |
| Display Bias for OLED Panels | Low-Power MCU I/O Bank |
Use Scenario: Generates 1.8 V logic supply for OLED display column drivers and timing controllers. IC Role / Device Role / Timing Role: Regulates display interface voltage independent of main system rail fluctuations. Use Value: ±1.5% accuracy over −40 °C to +125 °C ensures consistent brightness and contrast across automotive temperature ranges. |
Use Scenario: Powers GPIO and peripheral I/O banks of ARM Cortex-M microcontrollers in wearables. IC Role / Device Role / Timing Role: Supplies isolated, low-noise 1.8 V for level-shifting and communication interfaces (I²C, SPI). Use Value: 0.07 µA shutdown current enables multi-year battery life in coin-cell-powered sensor nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B182MR-G | 1.8 V fixed, 500 mA, ±2% accuracy, 350 mV dropout, no NR pin, 65 µVRMS noise | Lacks noise reduction capability and reverse bias protection; requires ≥2.2 µF output cap | Lower cost where ±2% accuracy and higher noise are acceptable; not suitable for ultra-low-noise sensor rails. |
| Diodes Inc. AP7361-C-18SAG-7 | 1.8 V fixed, 600 mA, ±2% accuracy, 300 mV dropout, no Sense/NR pins, 120 µVRMS noise | No remote sense or noise filtering; higher noise limits use in precision analog circuits | Better current rating for higher-load applications but trades off accuracy, noise, and protection features. |
Compared with XC6210B182MR-G and AP7361-C-18SAG-7, the NCP3335AMN180R2G delivers superior accuracy (±0.9% vs. ±2%), lower noise (33 µVRMS vs. ≥65 µVRMS), integrated reverse bias protection, and remote sense capability - making it optimal for noise- and accuracy-critical portable imaging and DSP systems.
Availability
NCP3335AMN180R2G is available at Aetrix Electronics and suitable for portable camera modules, DSP audio processors, and OLED display subsystems requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP3335AMN180R2G 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 (Nasdaq: ON) is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP3335A series is designed for high-accuracy, low-noise power management in space-constrained portable electronics - emphasizing ultra-low dropout, capacitor-agnostic stability, and robust protection features for battery-powered systems.
FAQ
What is the maximum input voltage rating for the NCP3335AMN180R2G?
The NCP3335AMN180R2G has an absolute maximum input voltage rating of +16 V, as specified in the Maximum Ratings table. However, for reliable operation with 1.8 V output, the recommended input range is 2.6 V to 12 V per the Electrical Characteristics section. Exceeding 12 V may degrade long-term reliability or trigger thermal shutdown under load.
Does the NCP3335AMN180R2G require an external capacitor on the NR pin?
The NR pin on the NCP3335AMN180R2G is optional: connecting a 10 nF capacitor to GND reduces output noise from 52 µVRMS to 33 µVRMS, but the device operates fully functional without it. The datasheet confirms noise reduction is "an optional pin used to further reduce noise," and stability is maintained regardless of NR pin usage.
Can the NCP3335AMN180R2G be used with ceramic capacitors smaller than 1.0 µF?
No - the NCP3335AMN180R2G requires a minimum 1.0 µF output capacitance for guaranteed stability, as explicitly stated in the datasheet ("Requires Only 1.0 µF Output Capacitance for Stability"). Using smaller ceramics risks oscillation or poor transient response, even if MLCCs are employed.
What is the thermal resistance (θJA) of the NCP3335AMN180R2G in its DFN10 package?
The NCP3335AMN180R2G in the DFN10 (MN) package has θJA = 215 °C/W on a min-pad board and 66 °C/W on a 1-pad board (per Thermal Characteristics table). These values assume JEDEC-compliant 2 oz copper test conditions; actual PCB layout will determine real-world thermal performance.
Is reverse bias protection active when the NCP3335AMN180R2G is in shutdown mode?
Yes - reverse bias protection remains active in shutdown mode. The datasheet specifies reverse bias current IOUTR ≤ 10 µA when VIN = 0 V and VOUT is forced to 1.8 V, and notes this feature is valid whenever VOUT − VIN ≤ 7 V - independent of SD pin state. This protects downstream circuitry during system power-down sequences.
NCP3335AMN180R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.13V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 190 µA
- Current - Supply (Max):
- 14 mA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
NCP3335AMN180R2G FAQ
1.How can I place an order for NCP3335AMN180R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP3335AMN180R2G 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 NCP3335AMN180R2G reliable?
The price and inventory of NCP3335AMN180R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP3335AMN180R2G is usually 5 days.
3.What payment methods are accepted for NCP3335AMN180R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP3335AMN180R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP3335AMN180R2G?
NCP3335AMN180R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP3335AMN180R2G 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 NCP3335AMN180R2G?
For technical support, including NCP3335AMN180R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP3335AMN180R2G requirements.
6.How does Aetrix verify that NCP3335AMN180R2G is sourced from the original manufacturer or authorized distributors?
All NCP3335AMN180R2G 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 NCP3335AMN180R2G meets industry standards.
7.What is the process for return or replacement of NCP3335AMN180R2G?
All NCP3335AMN180R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP3335AMN180R2G, 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 NCP3335AMN180R2G part is unused and in its original packaging.
Return procedure for NCP3335AMN180R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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