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NXP Semiconductors TDA3663/N1,135
- Part No.:
- TDA3663/N1,135
- Manufacturer:
- NXP Semiconductors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
TDA3663/N1,135.pdf
- Description:
- IC REG LINEAR 3.3V 100MA SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:2,762
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Product details
Overview
TDA3663/N1,135 from NXP Semiconductors is a fixed-output 3.3 V low-dropout linear voltage regulator delivering up to 100 mA, featuring 15 µA typical quiescent current, 0.18 V typical dropout voltage at 50 mA, and operation across 3–45 V input range. It serves as a primary power supply for microcontrollers and sensors in automotive body electronics and industrial control modules where battery longevity and wide-input resilience are critical.
For engineers reviewing the TDA3663/N1,135 datasheet, TDA3663/N1,135 pinout, TDA3663/N1,135 application, or TDA3663/N1,135 equivalent, key selection criteria include its reverse-polarity safety down to −25 V, thermal shutdown at 150 °C, 60 dB ripple rejection at 120 Hz, and SO4 (SOT223-1) package compatibility with PCB ground-plane thermal enhancement.
Technical Context
The TDA3663/N1,135 integrates bandgap reference, error amplifier, pass transistor, and thermal protection in a monolithic IC. Its architecture enables stable regulation even when VP drops below 3.3 V + VREG(drop), allowing output tracking of input during brownout conditions.
Protection circuitry includes reverse-polarity tolerance (−25 V), 50 V negative transient immunity (100 ms, RS = 10 Ω), DC short-circuit safety to ground and VP, and ESD protection on all pins - enabling direct use in harsh automotive and telecom environments without external protection components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±3.4% (3.13–3.47 V over full load and input range); ensures reliable logic-level compliance for 3.3 V microcontrollers. |
| Dropout Voltage | 0.18 V typical at 50 mA (Tj ≤ 85 °C); enables regulation down to VP = 3.48 V, extending usable battery life in 4.2 V Li-ion systems. |
| Quiescent Current | 15 µA typical at VP = 14.4 V, IREG = 0 mA; reduces standby power loss in always-on automotive modules. |
| Input Voltage Range | 3–45 V operating; supports 12 V/24 V automotive rails and withstands load-dump transients up to 45 V. |
| Ripple Rejection | 60 dB typical at 120 Hz (1 V RMS input ripple); suppresses alternator noise before sensitive analog or RF circuitry. |
| Thermal Shutdown | Activates at Tj > 150 °C; prevents permanent damage during sustained overload or poor heatsinking. |
| Reverse Polarity | Safe to −25 V (non-operating); eliminates need for external series diode in battery-reversed installations. |
Pinout & Package
Package: SO4 (SOT223-1), plastic small outline, 4 leads, 3.5 mm body width; thermal pad connected to Pin 2 and Pin 4 (GND) for PCB ground-plane heat spreading.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (VP) | Supply Input | Accepts 3–45 V unregulated input; reverse-polarity tolerant to −25 V; internal clamp limits leakage to 500 µA at −15 V. |
| Pin 2 (GND) | Ground Reference | Primary ground return; electrically tied to thermal pad; soldering to PCB ground plane reduces Rth(j-a) from 100 K/W to 25 K/W. |
| Pin 3 (REG) | Regulated Output | Delivers stable 3.3 V up to 100 mA; includes internal short-circuit and thermal foldback protection. |
| Pin 4 (GND) | Ground Reference | Secondary ground terminal; paralleled with Pin 2 to lower impedance path and improve thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 15 µA typical at zero load - extends battery runtime in infotainment wake-up circuits and telematics modules. |
| Wide input voltage range | 3–45 V operation - accommodates 12 V/24 V vehicle systems and tolerates ISO 7637-2 pulse 5a (load dump) without external TVS. |
| Reverse polarity protection | Withstands −25 V at VP with <500 µA leakage - eliminates need for series Schottky diode in battery connections. |
| Integrated thermal protection | Shuts off output above 150 °C junction temperature and auto-recovers upon cooling - prevents thermal runaway in enclosed enclosures. |
| High ripple rejection | 60 dB at 120 Hz - maintains clean 3.3 V supply for CAN transceivers and ADC references amid alternator noise. |
Applications
| Automotive Body Control Module | Industrial Sensor Node |
|---|---|
Use Scenario: Powering MCU, LIN transceiver, and door-lock actuator driver in BCM under cold-crank (5.5 V) and load-dump (45 V) conditions. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying logic and interface circuitry; operates continuously across vehicle lifecycle temperature range (−40 °C to +125 °C). Use Value: 0.18 V dropout enables regulation during cranking; reverse-polarity tolerance avoids fuse-blowing on battery misconnection. |
Use Scenario: Providing stable 3.3 V to MEMS pressure sensor and wireless SoC in remote environmental monitoring station powered by solar-charged 12 V battery. IC Role / Device Role / Timing Role: Low-quiescent-power regulator maintaining sensor bias and radio sleep-mode supply; supports >10-year field deployment. Use Value: 15 µA Iq minimizes night-time battery drain; 45 V max input handles solar charge controller overshoot. |
| Telecom Line-Powered Device | Medical Portable Diagnostic Tool |
Use Scenario: Regulating power from −48 V telecom line (via external buck converter) to 3.3 V for Ethernet PHY and management MCU in network edge device. IC Role / Device Role / Timing Role: Secondary LDO after intermediate conversion; provides noise-isolated rail for timing-critical PHY interface. Use Value: 60 dB SVRR suppresses switching noise from upstream converter; ESD-protected pins survive handling in field service. |
Use Scenario: Supplying 3.3 V to clinical-grade ADC, display driver, and Bluetooth LE module in handheld ultrasound probe. IC Role / Device Role / Timing Role: Safety-redundant regulated rail; thermal shutdown prevents overheating during extended scanning sessions. Use Value: 150 °C thermal cutoff ensures patient-safe surface temperatures; 3.3 V accuracy (±3.4%) guarantees ADC reference stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | Lower Iq (4.5 µA), lower dropout (170 mV @ 300 mA), but max input only 5.5 V and no reverse-polarity rating. | Suitable for portable battery-powered devices with tight input range; unsuitable for automotive or telecom due to 5.5 V limit and no −25 V tolerance. | Select TLV73333PDBVR only if input stays ≤5.5 V and reverse protection is externally implemented. |
| MCP1703T-3302E/MB | 1.8 µA Iq, 600 mA output, 16 V max input, no reverse-polarity or high-voltage transient specs. | Better for high-current, ultra-low-power IoT nodes; lacks automotive-grade ruggedness and 45 V capability. | Choose MCP1703T-3302E/MB for cost-sensitive consumer designs where 16 V input suffices and thermal robustness is secondary. |
Compared with TLV73333PDBVR and MCP1703T-3302E/MB, the TDA3663/N1,135 uniquely combines 45 V input, −25 V reverse tolerance, and 15 µA quiescent current - making it irreplaceable in automotive and industrial systems requiring single-component resilience without external protection.
Availability
TDA3663/N1,135 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, telecom line-powered equipment, and portable medical diagnostics requiring stable component supply across extended temperature and voltage stress conditions.
Supply support for TDA3663/N1,135 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The TDA3663/N1,135 belongs to NXP's automotive-qualified linear regulator family, engineered specifically for battery-powered and mains-connected systems demanding ultra-low Iq, wide input range, and integrated protection in harsh environments.
FAQ
What is the maximum continuous output current of the TDA3663/N1,135 under standard conditions?
The TDA3663/N1,135 delivers up to 100 mA continuously. At Tamb = 21 °C and VP = 14 V, the maximum output current reaches 116 mA when thermal resistance is minimized via GND pin soldering to a PCB ground plane. Derating applies above 85 °C junction temperature due to thermal foldback protection.
Does the TDA3663/N1,135 require an external capacitor for stability, and what are the ESR requirements?
Yes, the TDA3663/N1,135 requires an output capacitor with minimum ESR ≥3 Ω for reliable operation across load, temperature, and capacitance variations. For C2 = 100 µF, minimum ESR is >0 Ω per Table 8, but 3 Ω is recommended for backup functionality and phase margin. Ceramic capacitors must be paired with a series resistor to meet this ESR requirement.
Can the TDA3663/N1,135 operate during automotive cold-crank conditions?
Yes, the TDA3663/N1,135 operates down to VP = 3 V and maintains regulation until VP falls below VREG + VREG(drop). With 0.18 V typical dropout at 50 mA, it sustains 3.3 V output down to VP ≈ 3.48 V - well within the 5.5 V minimum of automotive cold-crank profiles per ISO 16750-2.
What protection features are integrated into the TDA3663/N1,135?
The TDA3663/N1,135 integrates reverse-polarity safety (−25 V), 50 V negative transient immunity (100 ms), DC short-circuit protection to ground and VP, ESD protection on all pins, and thermal shutdown at Tj > 150 °C. These eliminate the need for external diodes, TVS devices, or fuses in most automotive and industrial deployments.
Is the TDA3663/N1,135 pin-compatible with the TDA3663AT variant?
No, the TDA3663/N1,135 uses the SO4 (SOT223-1) package with 4 pins (VP, GND, REG, GND), while the TDA3663AT uses SO8 (SOT96-1) with 8 pins and different pin assignments. They share electrical specifications but require separate PCB layouts and cannot be interchanged without hardware revision.
TDA3663/N1,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- 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):
- 0.3V @ 50mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 30 µA
- Current - Supply (Max):
- 2.5 mA
- PSRR:
- 60dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit, Transient Voltage
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-73
TDA3663/N1,135 FAQ
1.How can I place an order for TDA3663/N1,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA3663/N1,135 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 TDA3663/N1,135 reliable?
The price and inventory of TDA3663/N1,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA3663/N1,135 is usually 5 days.
3.What payment methods are accepted for TDA3663/N1,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA3663/N1,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA3663/N1,135?
TDA3663/N1,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA3663/N1,135 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 TDA3663/N1,135?
For technical support, including TDA3663/N1,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA3663/N1,135 requirements.
6.How does Aetrix verify that TDA3663/N1,135 is sourced from the original manufacturer or authorized distributors?
All TDA3663/N1,135 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 TDA3663/N1,135 meets industry standards.
7.What is the process for return or replacement of TDA3663/N1,135?
All TDA3663/N1,135 units undergo pre-shipment inspection (PSI). If there is an issue with TDA3663/N1,135, 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 TDA3663/N1,135 part is unused and in its original packaging.
Return procedure for TDA3663/N1,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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