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Diodes Incorporated AP2114DA-3.3TRG1
- Part No.:
- AP2114DA-3.3TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP2114DA-3.3TRG1.pdf
- Description:
- IC REG LINEAR 3.3V 1A TO252-2
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
AP2114DA-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 AP2114DA-3.3TRG1 datasheet, AP2114DA-3.3TRG1 pinout, AP2114DA-3.3TRG1 application, or AP2114DA-3.3TRG1 equivalent, key selection criteria include dropout voltage under full load, PSRR at 1kHz, thermal shutdown threshold, EN logic thresholds, and compatibility with 4.7μF ceramic output capacitors.
Technical Context
The AP2114DA-3.3TRG1 uses a CMOS pass transistor architecture with internal bandgap reference and foldback current limiting. Its enable input (EN) provides precise on/off control with 1.5V VIH and 0.4V VIL thresholds, supporting system-level power sequencing.
It features integrated thermal shutdown (160°C trip, 25°C hysteresis), overcurrent protection (50mA short-circuit limit), and stable operation 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 logic rail compliance across temperature and load. |
| Max Output Current | 1A continuous - supports high-current digital ICs such as SoCs and display controllers. |
| Dropout Voltage | 450mV typ @ 1A - enables operation from 4.3V input, suitable for single-cell Li-ion or 5V rail derating. |
| 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 circuits like HDMI PHYs and video DACs. |
| Quiescent Current | 65–90μA @ VIN=4.3V - enables ultra-low standby power in always-on STB and monitor auxiliary rails. |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade consumer electronics environments. |
Pinout & Package
AP2114DA-3.3TRG1 is packaged in TO-252-2 (D-type) - a 3-pin surface-mount package with exposed thermal pad, optimized for medium-power dissipation without heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Supply | Accepts 2.5–6.0V input; requires ≥4.7μF ceramic input capacitor near pin for stability. |
| 2 (VOUT) | Regulated Output | Delivers fixed 3.3V; connects directly to load and 4.7μF ceramic output capacitor. |
| 3 (GND) | Ground Reference | Common return path for input, output, and internal circuitry; must be low-impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 30μVRMS output noise enables clean power for analog video buffers and ADC references. |
| Enable-controlled shutdown | EN pin with 1.5V VIH allows direct interfacing with 3.3V GPIOs for dynamic power gating. |
| Foldback current protection | 50mA short-circuit limit prevents thermal runaway during output faults while preserving PCB traces. |
| Thermal shutdown with hysteresis | 160°C trip + 25°C hysteresis ensures safe recovery after overload without oscillation. |
| Ceramic-capacitor compatible | Stable with 4.7μF X5R/X7R ceramics - eliminates need for bulky, aging-prone electrolytics. |
Applications
| LCD Monitor Power Rail | Set-Top Box Core Logic |
|---|---|
Use Scenario: Supplies 3.3V to timing controller (TCON) and LVDS transmitter in 24-inch LCD monitor. IC Role / Device Role / Timing Role: Primary post-regulator delivering low-noise, tightly regulated 3.3V to noise-sensitive display interface circuitry. Use Value: 30μVRMS noise and 0.02%/V line regulation prevent visible flicker and color banding under varying input conditions. |
Use Scenario: Powers ARM-based SoC core logic and DDR memory interface in cable/satellite STB. IC Role / Device Role / Timing Role: High-current LDO providing stable 3.3V domain for processor I/O and memory subsystems. Use Value: 1A capability and 450mV dropout allow efficient use of 5V intermediate rail, reducing heat generation vs. higher-dropout alternatives. |
| Smart TV Mainboard | Digital Signage Controller |
Use Scenario: Regulates 3.3V for HDMI receiver, audio codec, and USB hub controller in 4K smart TV mainboard. IC Role / Device Role / Timing Role: Low-PSRR-sensitive LDO isolating digital audio/video signal chains from noisy SMPS inputs. Use Value: 65dB PSRR at 1kHz attenuates 500kHz–2MHz switching artifacts from upstream buck converters. |
Use Scenario: Provides 3.3V to FPGA configuration circuitry and Ethernet PHY in commercial digital signage player. IC Role / Device Role / Timing Role: Enable-controlled LDO enabling remote power cycling of network-connected display hardware. Use Value: EN pin with 0.4V VIL allows direct control by microcontroller GPIO, eliminating external level-shifting components. |
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 |
|---|---|---|---|
| MCP1700-3302E/TO | 250mA max output, 600mV dropout @ 250mA, no EN pin | Limited to low-power MCU peripherals; unsuitable for 1A loads or sequenced systems | Select only for space-constrained, low-current applications where enable control is unnecessary. |
| TPS7A4701RGWR | 1A output, 310mV dropout @ 1A, 4μVRMS noise, but requires 10μF output cap and costs >3× more | Better noise performance but incompatible with 4.7μF ceramic-only designs and cost-sensitive volume production | Prefer when sub-5μVRMS noise is mandatory and budget allows premium pricing and larger capacitance. |
Compared with MCP1700-3302E/TO and TPS7A4701RGWR, AP2114DA-3.3TRG1 uniquely balances 1A capability, 4.7μF ceramic compatibility, integrated EN, and cost-effective industrial qualification-making it optimal for mid-power consumer display and set-top box designs.
Availability
AP2114DA-3.3TRG1 is available at Aetrix Electronics and suitable for LCD monitor power rails, set-top box core logic supplies, and digital signage controller boards requiring stable component supply, RoHS-compliant packaging, and long-term industrial temperature support.
Supply support for AP2114DA-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 was developed to deliver high-current, low-noise LDO regulation in standard packages for cost-sensitive display and multimedia electronics, emphasizing ceramic-capacitor compatibility and robust thermal protection.
FAQ
What is the minimum input voltage required for AP2114DA-3.3TRG1 to maintain regulation at 1A load?
The device requires VIN ≥ VOUT + VDROP = 3.3V + 0.45V = 3.75V minimum under typical 1A conditions. Absolute minimum specified input is 2.5V, but regulation fails below ~3.75V at full load per electrical characteristics table on page 12.
Can AP2114DA-3.3TRG1 operate with a 2.2μF ceramic output capacitor?
No. The datasheet explicitly 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.
Does the EN pin require an external pull-up resistor?
No. The EN pin has an internal 3.0MΩ pull-down resistor (RPD), so it defaults to OFF when left floating. A pull-up is only needed if active-high enable logic is required and the driving source cannot assert >1.5V reliably.
Is AP2114DA-3.3TRG1 pin-compatible with other AP2114 variants in TO-252-2 package?
Yes - all AP2114 D/DA variants (e.g., AP2114D-3.3TRG1, AP2114DA-1.8TRG1) share identical TO-252-2 (3-pin) pinout: Pin 1 = VIN, Pin 2 = VOUT, Pin 3 = GND. Only output voltage and enable configuration differ between DA (enable-enabled) and D (enable-disabled) versions.
AP2114DA-3.3TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- 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-252-3
AP2114DA-3.3TRG1 FAQ
1.How can I place an order for AP2114DA-3.3TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2114DA-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 AP2114DA-3.3TRG1 reliable?
The price and inventory of AP2114DA-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 AP2114DA-3.3TRG1 is usually 5 days.
3.What payment methods are accepted for AP2114DA-3.3TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2114DA-3.3TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2114DA-3.3TRG1?
AP2114DA-3.3TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2114DA-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 AP2114DA-3.3TRG1?
For technical support, including AP2114DA-3.3TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2114DA-3.3TRG1 requirements.
6.How does Aetrix verify that AP2114DA-3.3TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2114DA-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 AP2114DA-3.3TRG1 meets industry standards.
7.What is the process for return or replacement of AP2114DA-3.3TRG1?
All AP2114DA-3.3TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2114DA-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 AP2114DA-3.3TRG1 part is unused and in its original packaging.
Return procedure for AP2114DA-3.3TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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