My Inquiry
My Account
Diodes Incorporated AP2114H-1.8TRG1
- Part No.:
- AP2114H-1.8TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP2114H-1.8TRG1.pdf
- Description:
- IC REG LINEAR 1.8V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:12,367
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP2114H-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 - deployed in LCD monitor power rails for stable core voltage supply under dynamic load.
For engineers reviewing the AP2114H-1.8TRG1 datasheet, AP2114H-1.8TRG1 pinout, AP2114H-1.8TRG1 application, or AP2114H-1.8TRG1 equivalent, key selection criteria include dropout voltage at full load, PSRR at 1 kHz, thermal shutdown threshold, EN logic compatibility, and SOT-223 package thermal resistance (θJA = 128 °C/W).
Technical Context
The AP2114H-1.8TRG1 uses a CMOS pass transistor architecture with internal bandgap reference and foldback current limiting, enabling stable regulation down to 2.8 V input while delivering up to 1 A continuous output. Its enable pin supports TTL-compatible logic control (VIH = 1.5 V, VIL = 0.4 V) and integrates a 3 MΩ pull-down resistor.
It features integrated thermal shutdown (160 °C trip, 25 °C hysteresis), overcurrent protection (50 mA short-circuit limit), and output discharge via 60 Ω internal resistor when disabled. The device maintains ±30 ppm/°C output voltage temperature coefficient across –40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±1.5% - ensures compliant core voltage for 1.8 V logic ICs without external feedback. |
| Max Output Current | 1.0 A continuous - supports high-current digital subsystems such as display timing controllers. |
| Dropout Voltage | 450 mV typ @ 1 A - enables operation from 2.8 V input, critical for battery-backed or multi-rail systems. |
| PSRR | 68 dB @ 1 kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Output Noise | 30 μVRMS (10 Hz–100 kHz) - minimizes jitter in analog-sensitive circuits like video DACs or clock buffers. |
| Quiescent Current | 60 μA - enables ultra-low standby power in always-on display subsystems. |
| Thermal Shutdown | 160 °C junction trip with 25 °C hysteresis - prevents latch-up during transient overload or poor heatsinking. |
Pinout & Package
AP2114H-1.8TRG1 is packaged in SOT-223 (H variant), a thermally enhanced surface-mount package with exposed thermal pad on the backside. Pin 1 = GND, Pin 2 = VIN, Pin 3 = VOUT.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference and thermal path - must be connected to large copper pour for θJA = 128 °C/W performance. |
| 2 | VIN | Input supply pin - requires ≥2.8 V minimum; accepts up to 6.0 V max per absolute rating. |
| 3 | VOUT | Regulated 1.8 V output - stable with 4.7 μF ceramic, tantalum, or aluminum electrolytic capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 30 μVRMS output noise enables clean power for video signal chains and ADC references. |
| Enable-controlled shutdown | TTL-compatible EN pin (VIH = 1.5 V) reduces quiescent current to ≤1.0 μA - ideal for system-level power sequencing. |
| Foldback current limiting | 50 mA short-circuit current protects both device and load during fault conditions without thermal runaway. |
| Stable with flexible output capacitance | Works with 4.7 μF ceramic, tantalum, or aluminum electrolytic - simplifies BOM and layout across product generations. |
| Robust ESD protection | 4000 V HBM / 400 V MM - meets industrial handling requirements without external protection diodes. |
Applications
| LCD Monitor Power Rail | LCD TV Mainboard Core Supply |
|---|---|
|
Use Scenario: Powers 1.8 V I/O banks of timing controller (TCON) and embedded microcontroller in 24-inch desktop monitors. IC Role / Device Role / Timing Role: Primary post-regulator delivering low-noise, tightly regulated voltage after buck converter stage. Use Value: ±1.5% accuracy and 0.2%/A load regulation prevent logic errors during rapid brightness or resolution changes. |
Use Scenario: Supplies 1.8 V core voltage to HDMI receiver ICs and frame buffer memory in 4K UHD TVs. IC Role / Device Role / Timing Role: Low-noise LDO decoupling rail placed adjacent to high-speed serial interface ICs. Use Value: 68 dB PSRR at 1 kHz attenuates switching ripple from 500 kHz DC/DC converters, reducing eye diagram jitter. |
| Set-Top Box SoC I/O Domain | Industrial Display Controller |
|
Use Scenario: Provides 1.8 V supply to USB PHY, SDIO, and PCIe endpoint interfaces in cable/satellite STBs. IC Role / Device Role / Timing Role: Enable-controlled auxiliary LDO synchronized with system wake/sleep states. Use Value: 20 μs startup time and 60 μA quiescent current support fast channel-switching and low-power standby modes. |
Use Scenario: Delivers 1.8 V to FPGA configuration I/O banks and display interface transceivers in ruggedized HMI panels. IC Role / Device Role / Timing Role: Industrial-grade LDO operating across –40°C to +85°C with thermal hysteresis for reliability. Use Value: 160 °C thermal shutdown with 25 °C hysteresis prevents repeated cycling during sustained ambient overheating. |
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 package | Lower current capacity limits use to low-power peripherals only - not suitable for TCON or SoC I/O domains. | Select only for space-constrained, sub-300 mA loads where thermal performance is secondary. |
| TPS7A2018PDBVR | 1.8 V, 300 mA, 170 mV dropout @ 300 mA, 7 μVRMS noise, 1.4 μA IQ, SOT-23-5 | Ultra-low noise and IQ benefit battery-powered devices but lacks 1 A capability and thermal robustness for display power rails. | Prefer for portable displays or sensor nodes; avoid for mains-powered LCD monitors requiring >500 mA sustained current. |
Compared with MCP1703T-1802E/MB and TPS7A2018PDBVR, AP2114H-1.8TRG1 uniquely balances 1 A delivery, 450 mV dropout, and industrial-grade thermal protection in SOT-223 - making it the only viable choice for cost-sensitive, high-current display power applications.
Availability
AP2114H-1.8TRG1 is available at Aetrix Electronics and suitable for LCD monitor power rails, LCD TV mainboard core supplies, and set-top box SoC I/O domains requiring stable component supply, RoHS-compliant green packaging (G1 suffix), and tape-and-reel logistics.
Supply support for AP2114H-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 supplier specializing in power management, LED drivers, and interface solutions for consumer and industrial markets.
The AP2114 series targets cost-optimized, high-reliability linear regulation in display electronics - emphasizing low noise, wide input range, and robust thermal/overcurrent protection in standard packages.
FAQ
What is the minimum input voltage required for AP2114H-1.8TRG1 to maintain regulation at 1 A?
The minimum input voltage is 2.8 V, derived from the 1.8 V output plus 450 mV typical dropout voltage at 1 A load. Operation below this causes dropout and unregulated output. Absolute maximum input is 6.0 V per datasheet ratings.
Can AP2114H-1.8TRG1 be used with ceramic output capacitors smaller than 4.7 μF?
No - the datasheet specifies stability only with ≥4.7 μF ceramic, tantalum, or aluminum electrolytic capacitors. Smaller values risk oscillation due to insufficient phase margin; ESR requirements are not specified, so low-ESR ceramics are acceptable if capacitance meets minimum.
Does the EN pin require an external pull-up resistor?
No - the EN pin has an internal 3.0 MΩ pull-down resistor. A logic-high signal ≥1.5 V (VIH) enables regulation; no external pull-up is needed unless system-level noise immunity requires stronger drive or faster rise/fall times.
How does the VOUT discharge function operate when EN is pulled low?
When EN is driven low, an internal 60 Ω resistor connects VOUT to GND, discharging output capacitance rapidly. This prevents floating voltages and ensures safe power-down sequencing in multi-rail systems - discharge time depends on COUT value (e.g., ~280 μs for 4.7 μF).
AP2114H-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
AP2114H-1.8TRG1 FAQ
1.How can I place an order for AP2114H-1.8TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2114H-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 AP2114H-1.8TRG1 reliable?
The price and inventory of AP2114H-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 AP2114H-1.8TRG1 is usually 5 days.
3.What payment methods are accepted for AP2114H-1.8TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2114H-1.8TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2114H-1.8TRG1?
AP2114H-1.8TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2114H-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 AP2114H-1.8TRG1?
For technical support, including AP2114H-1.8TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2114H-1.8TRG1 requirements.
6.How does Aetrix verify that AP2114H-1.8TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2114H-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 AP2114H-1.8TRG1 meets industry standards.
7.What is the process for return or replacement of AP2114H-1.8TRG1?
All AP2114H-1.8TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2114H-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 AP2114H-1.8TRG1 part is unused and in its original packaging.
Return procedure for AP2114H-1.8TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP2114H-1.8TRG1 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
