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Diodes Incorporated AP2114HA-1.8TRG1
- Part No.:
- AP2114HA-1.8TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP2114HA-1.8TRG1.pdf
- Description:
- IC REG LINEAR 1.8V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:3,538
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Product details
Overview
AP2114HA-1.8TRG1 from BCD Semiconductor Manufacturing Limited is a fixed-output 1.8 V, 1 A CMOS low-dropout linear regulator with enable control, ±1.5% output accuracy, 450 mV typical dropout at 1 A, and 30 μVRMS output noise. It delivers stable power to core logic rails in LCD monitors and STB mainboards where low-noise, high-accuracy regulation is required.
For engineers reviewing the AP2114HA-1.8TRG1 datasheet, AP2114HA-1.8TRG1 pinout, AP2114HA-1.8TRG1 application, or AP2114HA-1.8TRG1 equivalent, key selection criteria include guaranteed 1 A load capability, thermal shutdown (160°C), fold-back short-circuit protection (50 mA), EN pin logic thresholds (VIH = 1.5 V, VIL = 0.4 V), and compatibility with 4.7 μF ceramic output capacitors.
Technical Context
The AP2114HA-1.8TRG1 implements a CMOS-based LDO architecture with internal voltage reference, error amplifier, and PMOS pass transistor. Its enable input controls an integrated shutdown logic block that reduces standby current to ≤1.0 μA while activating VOUT discharge via a 60 Ω internal resistor.
It features fold-back current limiting (50 mA short-circuit current), thermal shutdown with 25°C hysteresis, and PSRR of 68 dB at 1 kHz. The regulator maintains ±1.5% output accuracy over –40°C to +85°C ambient and supports input voltages from 2.8 V to 6.0 V for 1.8 V output operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±1.5% - ensures stable core supply for 1.8 V I/O or logic domains without external feedback. |
| Max Output Current | 1.0 A continuous - supports high-current digital loads such as SoC I/O banks or display interface circuitry. |
| Dropout Voltage | 450 mV typ @ 1 A - enables operation from 2.8 V input, minimizing power loss in battery- or intermediate-rail systems. |
| Output Noise | 30 μVRMS (10 Hz–100 kHz) - low enough for noise-sensitive analog/RF sections powered from same rail. |
| PSRR | 68 dB @ 1 kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Quiescent Current | 60 μA typ - enables ultra-low-power standby modes in always-on consumer electronics. |
| Enable Thresholds | VIH = 1.5 V, VIL = 0.4 V - compatible with standard 1.8 V/3.3 V GPIO logic without level-shifting. |
| Thermal Shutdown | 160°C with 25°C hysteresis - protects against sustained overload or poor heatsinking in compact enclosures. |
Pinout & Package
AP2114HA-1.8TRG1 uses the SOT-223 (HA variant) package - a thermally enhanced surface-mount outline with exposed thermal pad (pin 2 = VIN, pin 3 = VOUT, pin 1 = GND). Pin 4 is not present; HA denotes fixed-output configuration with no ADJ pin.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference and primary thermal path; must be connected to large PCB copper area for thermal management. |
| 2 | VIN | Main input supply (2.8–6.0 V); requires local 4.7 μF ceramic decoupling close to pin. |
| 3 | VOUT | Regulated 1.8 V output; connects directly to load and 4.7 μF ceramic output capacitor. |
| 4 | EN | Active-high enable input; drives regulator ON when ≥1.5 V, OFF when ≤0.4 V; internal 3 MΩ pull-down. |
Key Features
| Feature | Design Value |
|---|---|
| Stable with 4.7 μF ceramic cap | Eliminates need for tantalum or electrolytic capacitors - reduces board space, cost, and aging-related failure risk. |
| VOUT discharge on disable | 60 Ω internal discharge path rapidly collapses output voltage during shutdown - prevents back-powering or latch-up in multi-rail systems. |
| Fold-back short-circuit protection | Limits fault current to 50 mA during output short - avoids thermal runaway and enables safe auto-recovery after fault removal. |
| Low-noise 30 μVRMS output | Enables direct powering of ADC references, PLLs, or RF front-ends without additional filtering stages. |
| Wide input range (2.8–6.0 V) | Supports single-supply operation from Li-ion (3.0–4.2 V), USB (5 V), or industrial 5 V rails without pre-regulation. |
| –40°C to +85°C operation | Validated across full industrial temperature range - suitable for STB, monitor, and set-top box deployments in uncontrolled environments. |
Applications
| LCD Monitor Power Rail | STB Mainboard Core Supply |
|---|---|
|
Use Scenario: Powers 1.8 V I/O banks and timing controller logic in 24-inch+ LCD monitors. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, accurate 1.8 V from 5 V or 3.3 V intermediate rail. Use Value: ±1.5% accuracy and 30 μVRMS noise prevent display artifacts and timing jitter in LVDS/TTL video interfaces. |
Use Scenario: Supplies 1.8 V core voltage to media processor I/O and HDMI PHY in cable/satellite STBs. IC Role / Device Role / Timing Role: Low-noise, fast-startup (20 μs) LDO enabling quick system wake-from-standby. Use Value: 60 μA quiescent current and EN-controlled shutdown reduce standby power below 100 μW per rail. |
| Smart TV TCON Board | Industrial Display Controller |
|
Use Scenario: Provides regulated 1.8 V to timing controller (TCON) ASICs managing panel gate/source drivers. IC Role / Device Role / Timing Role: Fixed-output LDO with thermal shutdown protecting TCON under sustained backlight load conditions. Use Value: 160°C thermal cutoff and 25°C hysteresis prevent irreversible damage during thermal stress testing or enclosure overheating. |
Use Scenario: Delivers 1.8 V to FPGA configuration I/O banks and microcontroller peripherals in ruggedized HMI displays. IC Role / Device Role / Timing Role: Industrial-grade LDO with –40°C to +85°C operation and 4000 V HBM ESD rating. Use Value: Robust ESD immunity (HBM 4000 V) and stable load regulation (0.2%/A) ensure reliability in factory-floor ESD-prone environments. |
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-1802E/MB | 1.8 V, 250 mA max, 600 mV dropout @ 250 mA, 35 μVRMS noise, SOT-23-5 | Lower current capacity limits use to low-power MCU or sensor rails - unsuitable for 1 A loads like TCON or SoC I/O. | Select only if board space is critical and load < 250 mA; verify thermal derating in enclosed designs. |
| TPS7A2018PDBVR | 1.8 V, 300 mA, 170 mV dropout @ 300 mA, 7 μVRMS noise, WSON-6 | Ultra-low noise but insufficient current; lacks fold-back protection and thermal hysteresis. | Prefer for ultra-sensitive analog rails only; requires external current-limiting or thermal monitoring for >300 mA loads. |
Compared with MCP1703T-1802E/MB and TPS7A2018PDBVR, AP2114HA-1.8TRG1 uniquely combines 1 A delivery, 450 mV dropout, fold-back protection, and industrial temperature support - making it the sole fit for high-current, thermally constrained consumer display applications.
Availability
AP2114HA-1.8TRG1 is available at Aetrix Electronics and suitable for LCD monitor power rails, STB mainboard core supplies, and smart TV TCON boards requiring stable component supply, RoHS-compliant green packaging, and long-term industrial lifecycle support.
Supply support for AP2114HA-1.8TRG1 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 mixed-signal solutions for consumer and industrial markets.
The AP2114 product line targets cost-sensitive, high-volume consumer electronics requiring robust, low-noise LDOs with flexible packaging and broad input voltage support - especially LCD/LED display and set-top box applications.
FAQ
What is the minimum input voltage required for AP2114HA-1.8TRG1 to regulate 1.8 V at 1 A?
The datasheet specifies VIN ≥ 2.8 V for 1.8 V output operation at full 1 A load. At 2.8 V input, the typical dropout is 450 mV, leaving 2.35 V headroom - sufficient to maintain regulation. Below 2.8 V, output voltage drops linearly with input, entering dropout region.
Can AP2114HA-1.8TRG1 be used with aluminum electrolytic output capacitors?
Yes - the device is explicitly characterized for stability with 4.7 μF aluminum electrolytic, tantalum, and ceramic capacitors. However, aluminum types exhibit higher ESR and temperature drift; ceramic is preferred for lowest noise and smallest footprint.
Does AP2114HA-1.8TRG1 require an external pull-up on the EN pin?
No - it includes an internal 3.0 MΩ pull-down resistor on EN. A logic-high signal ≥1.5 V (e.g., from 1.8 V or 3.3 V GPIO) is sufficient to enable; no external pull-up is needed unless open-drain control is used.
How does the VOUT discharge function operate during shutdown?
When EN is pulled low, an internal 60 Ω switch connects VOUT to GND, discharging the output capacitor within milliseconds. This prevents back-powering of upstream circuits and ensures deterministic power sequencing in multi-rail systems.
AP2114HA-1.8TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.7V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 75 µA
- Current - Supply (Max):
- -
- PSRR:
- 68dB (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:
- SOT-223-3
AP2114HA-1.8TRG1 FAQ
1.How can I place an order for AP2114HA-1.8TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2114HA-1.8TRG1 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 AP2114HA-1.8TRG1 reliable?
The price and inventory of AP2114HA-1.8TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2114HA-1.8TRG1 is usually 5 days.
3.What payment methods are accepted for AP2114HA-1.8TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2114HA-1.8TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2114HA-1.8TRG1?
AP2114HA-1.8TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2114HA-1.8TRG1 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 AP2114HA-1.8TRG1?
For technical support, including AP2114HA-1.8TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2114HA-1.8TRG1 requirements.
6.How does Aetrix verify that AP2114HA-1.8TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2114HA-1.8TRG1 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 AP2114HA-1.8TRG1 meets industry standards.
7.What is the process for return or replacement of AP2114HA-1.8TRG1?
All AP2114HA-1.8TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2114HA-1.8TRG1, 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 AP2114HA-1.8TRG1 part is unused and in its original packaging.
Return procedure for AP2114HA-1.8TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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