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onsemi MC33263NW-40R2
- Part No.:
- MC33263NW-40R2
- Manufacturer:
- onsemi
- Package:
- -
- Datasheet:
-
MC33263NW-40R2.pdf
- Description:
- IC REG LINEAR FIXED LDO REG
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Inventory:36,000
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Product details
Overview
MC33263NW-40R2 from onsemi is a 4.0 V fixed-output, low-noise, low-dropout linear regulator in SOT-23L package delivering up to 150 mA with typical dropout of 137 mV at 100 mA, 25 µVRMS noise (100 Hz–100 kHz, 10 nF bypass), and TTL/CMOS-compatible ON/OFF control - ideal for battery-powered RF front-ends and portable audio subsystems.
For engineers reviewing the MC33263NW-40R2 datasheet, pinout, applications, or equivalent options, key selection criteria include its ESR-insensitive stability, –90 dB DC ripple rejection, thermal shutdown at 150°C, 170 µA quiescent current in ON state, and compatibility with ceramic or tantalum output capacitors down to 1.0 µF.
Technical Context
The MC33263NW-40R2 employs a bandgap-referenced error amplifier with internal current limiting and antisaturation circuitry to maintain regulation under transient load steps up to 150 mA. Its architecture eliminates ESR dependency for output capacitor selection, enabling stable operation with 0–3.0 Ω ESR.
It integrates logic-level ON/OFF control (0.3 V low, 2.2 V high), thermal shutdown triggered at 150°C junction temperature, and achieves <1.0 mV line transient response (dVin/dt = 15 mV/s) while sustaining –70 dB ripple rejection at 1.0 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.0 V ±3% (measured at IOUT = 1–150 mA, TA = –40°C to +85°C) |
| Dropout Voltage | 137 mV typical at 100 mA load - enables operation with only 4.137 V input for full 4.0 V output |
| Noise (RMS) | 25 µVRMS over 100 Hz–100 kHz with 10 nF bypass capacitor - suitable for sensitive analog/RF stages |
| Quiescent Current | 170 µA typical in ON state (no load) - extends battery life in always-on portable systems |
| Ripple Rejection | –70 dB at 1.0 kHz - suppresses switching noise from upstream DC/DC converters |
| Line Regulation | 2.0 mV typical (VIN = VOUT + 1.0 V to 12 V, IOUT = 60 mA) - ensures stable output across wide input range |
| Load Regulation | 20 mV typical (IOUT = 1–150 mA) - maintains accuracy during dynamic load changes |
Pinout & Package
SOT-23L package (Case 318J), 6-pin surface-mount, thermally enhanced leadframe with exposed pad not electrically connected. Pin 1 = ON/OFF, Pin 2 = GND, Pin 3 = VIN, Pin 4 = BYPASS, Pin 5 = GND, Pin 6 = VOUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ON/OFF) | Logic enable input | TTL/CMOS-compatible control: <0.3 V = OFF (100 nA IQOFF), >2.2 V = ON |
| 2 (GND) | Power ground | Primary return path for VIN, VOUT, and internal bias currents |
| 3 (VIN) | Input supply | Accepts 4.137 V to 12 V; must be decoupled with ≥1.0 µF capacitor near pin |
| 4 (BYPASS) | Noise reduction node | Connects external 10 nF capacitor to reduce output noise to 25 µVRMS |
| 5 (GND) | Second ground terminal | Provides low-inductance return for bypass capacitor and improves PSRR |
| 6 (VOUT) | Regulated output | Delivers 4.0 V ±3% at up to 150 mA; stable with 1.0 µF ceramic/tantalum (0–3.0 Ω ESR) |
Key Features
| Feature | Design Value |
|---|---|
| ESR-insensitive stability | Operates stably with output capacitors having 0–3.0 Ω ESR - eliminates need for specialized low-ESR caps |
| Ultra-low noise architecture | 25 µVRMS (100 Hz–100 kHz) with 10 nF bypass - meets stringent requirements for RF LNA and ADC reference supplies |
| Fast wake-up without bypass | 20 µs output rise time when bypass capacitor omitted - enables rapid power sequencing in wake-from-sleep systems |
| Robust protection suite | Internal current limit (≥175 mA) and thermal shutdown at 150°C - prevents damage during overload or poor PCB thermal design |
| Wide input voltage range | Supports 4.137 V to 12 V input - accommodates single-cell Li-ion (4.2 V max) plus margin or multi-cell alkaline inputs |
Applications
| Cellular RF Front-End | Portable Audio DAC Supply |
|---|---|
Use Scenario: Powering low-noise RF amplifiers and mixer ICs in GSM/UMTS handsets where supply ripple directly impacts receiver sensitivity. IC Role / Device Role / Timing Role: Provides ultra-clean 4.0 V bias for LNA and mixer stages, rejecting noise from shared PMIC rails. Use Value: 25 µVRMS noise and –70 dB ripple rejection at 1.0 kHz prevent reciprocal mixing and maintain >90 dB SNR. |
Use Scenario: Supplying high-resolution audio DACs in Bluetooth headphones requiring minimal power-supply-induced distortion. IC Role / Device Role / Timing Role: Delivers regulated 4.0 V with <20 mV load regulation across 1–150 mA dynamic current draw during audio playback peaks. Use Value: 170 µA quiescent current extends battery runtime; ESR-insensitive design allows use of small 1.0 µF ceramic caps for space-constrained earbud PCBs. |
| Wireless Sensor Node MCU Core | Low-Voltage Industrial Controller I/O |
Use Scenario: Powering 32-bit ARM Cortex-M microcontrollers in battery-operated IoT sensors with periodic wake-up bursts. IC Role / Device Role / Timing Role: Enables fast 20 µs wake-up (no bypass) or low-noise 1.0 ms wake-up (with 10 nF bypass) synchronized to radio transmit windows. Use Value: Logic-level ON/OFF control allows direct GPIO drive; 137 mV dropout maximizes usable battery voltage down to 4.137 V. |
Use Scenario: Regulating 4.0 V for isolated digital I/O buffers and level translators in programmable logic controllers operating from 5–12 V industrial rails. IC Role / Device Role / Timing Role: Acts as local point-of-load regulator for noise-sensitive interface ICs sharing noisy 5 V system rail. Use Value: –90 dB DC line regulation and thermal shutdown ensure reliable operation in unventilated enclosures up to +85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70740PDBVR | Lower quiescent current (25 µA), but higher noise (45 µVRMS) and requires minimum 0.5 µF output cap with ≥15 mΩ ESR | Better for ultra-low-power sleep modes; less suitable for RF/analog where noise dominates | Select TLV70740PDBVR only if <50 µA IQ is critical and noise <35 µVRMS is not required |
| NCP1117ST40T3G | Higher dropout (1.2 V @ 800 mA), TO-220/SOT-223 package, no ON/OFF control, 75 µVRMS noise | Designed for higher-current, non-portable applications; lacks enable and low-noise capability | Choose NCP1117ST40T3G only for cost-sensitive, high-current (>200 mA), non-battery designs without enable needs |
Compared with TLV70740PDBVR and NCP1117ST40T3G, the MC33263NW-40R2 uniquely balances ultra-low noise (25 µVRMS), logic-enable functionality, ESR-free stability, and SOT-23L footprint - making it irreplaceable in space-constrained, noise-critical portable systems requiring rapid power sequencing.
Availability
MC33263NW-40R2 is available at Aetrix Electronics and suitable for cellular RF front-ends, portable audio DAC supplies, and wireless sensor node MCU core power requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC33263NW-40R2 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 innovation for automotive, industrial, cloud, and intelligent edge applications.
The MC33263NW-40R2 belongs to onsemi's precision analog LDO regulator family, engineered specifically for noise-sensitive portable electronics where ultra-low dropout, sub-30 µVRMS noise, and logic-controlled power gating are mandatory.
FAQ
What is the maximum output current supported by the MC33263NW-40R2?
The MC33263NW-40R2 delivers up to 150 mA continuous output current while maintaining regulation. Its internal current limit is specified at a minimum of 175 mA (typical 210 mA) under short-circuit conditions, and thermal shutdown activates at 150°C junction temperature to protect against sustained overload. At 150 mA, dropout remains ≤180 mV and load regulation holds within 20 mV.
Does the MC33263NW-40R2 require a specific type or value of output capacitor?
No - the MC33263NW-40R2 is explicitly designed to operate stably with any 1.0 µF or larger output capacitor having ESR between 0 and 3.0 Ω, including standard ceramic, tantalum, or polymer types. Unlike most LDOs, it imposes no minimum ESR or capacitance requirement beyond 1.0 µF, simplifying BOM and layout.
How does the bypass capacitor affect noise and startup time in the MC33263NW-40R2?
A 10 nF capacitor on the BYPASS pin reduces output noise to 25 µVRMS (100 Hz–100 kHz) but increases startup time to ~1.0 ms. With no bypass capacitor, noise rises to 65 µVRMS but startup time drops to ~20 µs - enabling rapid wake-up in low-noise-tolerant applications. The MC33263NW-40R2 supports both configurations without instability.
What are the logic thresholds for the ON/OFF pin of the MC33263NW-40R2?
The ON/OFF pin of the MC33263NW-40R2 is TTL/CMOS-compatible: a voltage ≤0.3 V places the device in OFF mode (quiescent current ≤2.0 µA), while ≥2.2 V enables regulation (ON mode). Input current is ≤2.5 µA across the full valid input range, allowing direct drive from standard microcontroller GPIOs without buffering.
Is the MC33263NW-40R2 suitable for automotive applications?
The MC33263NW-40R2 is rated for –40°C to +85°C operating ambient temperature and features thermal shutdown at 150°C, meeting many industrial and consumer requirements. However, it is not AEC-Q100 qualified and lacks automotive-specific reliability testing or PPAP documentation - therefore it is not recommended for safety-critical or under-hood automotive systems.
MC33263NW-40R2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- -
- Output Type:
- -
- Number of Regulators:
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- -
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MC33263NW-40R2 FAQ
1.How can I place an order for MC33263NW-40R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33263NW-40R2 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 MC33263NW-40R2 reliable?
The price and inventory of MC33263NW-40R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33263NW-40R2 is usually 5 days.
3.What payment methods are accepted for MC33263NW-40R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33263NW-40R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33263NW-40R2?
MC33263NW-40R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33263NW-40R2 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 MC33263NW-40R2?
For technical support, including MC33263NW-40R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33263NW-40R2 requirements.
6.How does Aetrix verify that MC33263NW-40R2 is sourced from the original manufacturer or authorized distributors?
All MC33263NW-40R2 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 MC33263NW-40R2 meets industry standards.
7.What is the process for return or replacement of MC33263NW-40R2?
All MC33263NW-40R2 units undergo pre-shipment inspection (PSI). If there is an issue with MC33263NW-40R2, 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 MC33263NW-40R2 part is unused and in its original packaging.
Return procedure for MC33263NW-40R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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