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Diodes Incorporated AP2114S-3.3TRG1
- Part No.:
- AP2114S-3.3TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Datasheet:
-
AP2114S-3.3TRG1.pdf
- Description:
- IC REG LINEAR 3.3V 1A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:1,566
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Product details
Overview
AP2114S-3.3TRG1 from BCD Semiconductor Manufacturing Limited is a fixed-output 3.3V, 1A CMOS low-dropout linear regulator with enable control, ±1.5% output accuracy, 450mV typical dropout at 1A, and 30μVRMS output noise. It delivers stable power to core logic rails in LCD monitors and STB mainboards where low noise and tight regulation are critical.
For engineers reviewing the AP2114S-3.3TRG1 datasheet, AP2114S-3.3TRG1 pinout, AP2114S-3.3TRG1 application, or AP2114S-3.3TRG1 equivalent, key selection criteria include dropout voltage at full load, PSRR at 1kHz, thermal resistance (θJC = 22°C/W), EN logic thresholds, and compatibility with 4.7μF ceramic output capacitors.
Technical Context
The AP2114S-3.3TRG1 implements a CMOS-based LDO architecture with internal bandgap reference, foldback short-circuit protection (50mA limit), and thermal shutdown (160°C trip with 25°C hysteresis). Its enable input supports active-high logic control with 1.5V VIH and 0.4V VIL thresholds.
It achieves 65dB PSRR at 1kHz under 4.3V input and 100mA load, maintains ±1.5% output accuracy across -40°C to +85°C ambient, and stabilizes with 4.7μF ceramic, tantalum, or aluminum electrolytic output capacitors-no ESR requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1.5% - ensures reliable 3.3V I/O rail compliance for microcontrollers and interface ICs |
| Max Output Current | 1A continuous - supports high-current digital loads like SoC cores and display drivers |
| Dropout Voltage | 450mV typ @ 1A - enables operation from 3.75V input (e.g., single Li-ion) while maintaining regulation |
| PSRR | 65dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input |
| Output Noise | 30μVRMS (10Hz–100kHz) - minimizes jitter in clock-sensitive analog circuits and ADC references |
| Quiescent Current | 65–90μA @ VIN=4.3V - enables low-power standby modes without compromising wake-up speed |
| Thermal Resistance θJC | 22°C/W (TO-263-3 package) - allows 1A operation up to +85°C ambient with minimal heatsinking |
Pinout & Package
AP2114S-3.3TRG1 uses the TO-263-3 (D²PAK) thermally enhanced surface-mount package with exposed drain pad for improved heat dissipation. Pin 1 = GND, Pin 2 = VIN, Pin 3 = VOUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference and thermal path to PCB copper; must be connected to large low-impedance plane |
| 2 | VIN | Main input supply (2.5–6.0V); requires local 4.7μF ceramic decoupling within 5mm of pin |
| 3 | VOUT | Regulated 3.3V output; connects directly to load and output capacitor; discharge resistor (60Ω) active when EN = low |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 30μVRMS output noise enables clean power for RF front-ends and precision ADCs |
| Enable-controlled shutdown | EN pin reduces standby current to ≤1.0μA and discharges VOUT via 60Ω internal resistor |
| Foldback current limiting | 50mA short-circuit current limit prevents thermal runaway during output faults |
| Capacitor flexibility | Stable with 4.7μF ceramic, tantalum, or aluminum electrolytic - no minimum ESR required |
| Robust protection suite | Includes thermal shutdown (160°C), overcurrent foldback, and 4000V HBM ESD rating |
Applications
| LCD Monitor Power Rail | Set-Top Box Mainboard |
|---|---|
Use Scenario: Supplies 3.3V to HDMI PHY, scaler IC, and panel timing controller in 24–32-inch LCD monitors. IC Role / Device Role / Timing Role: Primary post-regulator delivering low-noise, tightly regulated 3.3V from intermediate 5V or 12V DC/DC bus. Use Value: 65dB PSRR at 1kHz attenuates switching noise from upstream buck converter, preventing pixel jitter and color banding. |
Use Scenario: Powers ARM-based SoC I/O banks and USB PHY in cable/satellite STBs operating in thermally constrained enclosures. IC Role / Device Role / Timing Role: High-current LDO providing stable 3.3V domain with fast enable response for system wake-up from deep sleep. Use Value: 22°C/W θJC and 1A capability allow full-load operation at +85°C ambient without external heatsink. |
| Industrial HMI Display | Digital Signage Controller |
Use Scenario: Delivers 3.3V to FPGA configuration circuitry and touch controller in factory-floor HMIs exposed to wide temperature swings. IC Role / Device Role / Timing Role: Precision voltage source maintaining ±1.5% output accuracy from –40°C to +85°C for reliable FPGA startup and communication. Use Value: ±30ppm/°C temperature coefficient ensures <±0.01V drift over full industrial range, avoiding brownout resets. |
Use Scenario: Powers video decoder ASIC and DDR I/O buffers in outdoor digital signage media players with limited airflow. IC Role / Device Role / Timing Role: Low-quiescent-current (65–90μA) LDO enabling energy-efficient always-on monitoring while supporting rapid boot on content update. Use Value: 20μs start-up time ensures sub-millisecond power delivery to critical logic upon EN assertion, reducing boot latency. |
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 |
|---|---|---|---|
| MCP1703T-3302E/MB | 3.3V, 250mA max, 600mV dropout @ 250mA, 18μA IQ, SOT-23 package | Limited to low-current peripherals; unsuitable for 1A loads like SoCs or displays | Select only for space-constrained, sub-300mA applications where thermal performance is secondary |
| TPS7A4701RGWR | 3.3V, 1A, 310mV dropout @ 1A, 1.1μVRMS noise, SOIC-8, higher cost | Ultra-low noise (1.1μVRMS) but requires 10μF output cap and tighter layout for stability | Prefer when sub-2μVRMS noise is mandatory (e.g., audio codecs); avoid if using 4.7μF ceramics only |
Compared with MCP1703T-3302E/MB and TPS7A4701RGWR, AP2114S-3.3TRG1 uniquely balances 1A capability, 450mV dropout, 30μVRMS noise, and 4.7μF ceramic compatibility in a thermally efficient TO-263-3 package-making it optimal for cost-sensitive, medium-noise industrial displays.
Availability
AP2114S-3.3TRG1 is available at Aetrix Electronics and suitable for LCD monitor power rails, set-top box mainboards, and industrial HMI displays requiring stable component supply with RoHS-compliant green packaging (G1 suffix).
Supply support for AP2114S-3.3TRG1 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
BCD Semiconductor Manufacturing Limited is a China-based fabless analog IC designer specializing in power management, LED drivers, and protection devices for consumer and industrial markets.
The AP2114 series targets cost-effective, high-reliability LDO applications in display electronics and embedded systems-emphasizing low noise, wide input range, and robust thermal protection without premium pricing.
FAQ
What is the minimum input voltage required for AP2114S-3.3TRG1 to maintain regulation at 1A load?
The minimum input voltage is calculated as VOUT + VDROP = 3.3V + 0.45V = 3.75V (typical). At worst-case 750mV dropout (max spec), VIN must be ≥4.05V to sustain 3.3V output at 1A across temperature and process variation. Input below 2.5V is prohibited per absolute maximum ratings.
Can AP2114S-3.3TRG1 operate with a 2.2μF ceramic output capacitor?
No. The datasheet specifies stability with ≥4.7μF ceramic, tantalum, or aluminum electrolytic capacitors. Using 2.2μF violates the minimum capacitance requirement and risks oscillation or poor transient response, especially under 1A load steps. Always use 4.7μF or higher.
Does the EN pin require an external pull-up resistor?
No. The EN pin has an internal 3.0MΩ pull-down resistor, ensuring automatic shutdown (high-Z output, ≤1μA standby) when left unconnected. An external pull-up is only needed if active-high logic control from a microcontroller GPIO is required-then a 10kΩ resistor to 3.3V is recommended.
How does the VOUT discharge function work during shutdown?
When EN is driven low, an internal 60Ω resistor connects VOUT to GND, actively discharging the output capacitor. This prevents floating voltage on downstream circuits and ensures predictable power-down sequencing-critical for FPGAs and processors requiring controlled reset behavior.
AP2114S-3.3TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.75V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (100Hz ~ 1kHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263
AP2114S-3.3TRG1 FAQ
1.How can I place an order for AP2114S-3.3TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2114S-3.3TRG1 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 AP2114S-3.3TRG1 reliable?
The price and inventory of AP2114S-3.3TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2114S-3.3TRG1 is usually 5 days.
3.What payment methods are accepted for AP2114S-3.3TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2114S-3.3TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2114S-3.3TRG1?
AP2114S-3.3TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2114S-3.3TRG1 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 AP2114S-3.3TRG1?
For technical support, including AP2114S-3.3TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2114S-3.3TRG1 requirements.
6.How does Aetrix verify that AP2114S-3.3TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2114S-3.3TRG1 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 AP2114S-3.3TRG1 meets industry standards.
7.What is the process for return or replacement of AP2114S-3.3TRG1?
All AP2114S-3.3TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2114S-3.3TRG1, 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 AP2114S-3.3TRG1 part is unused and in its original packaging.
Return procedure for AP2114S-3.3TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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