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Diodes Incorporated AP2111MP-2.5TRG1
 Exposed Pad.jpg)
- Part No.:
- AP2111MP-2.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP2111MP-2.5TRG1.pdf
- Description:
- IC REG LINEAR 2.5V 600MA 8PSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,661
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Product details
Overview
AP2111MP-2.5TRG1 from BCD Semiconductor is a fixed-output 2.5V, 600mA CMOS low-dropout linear regulator with enable control and auto-discharge function, designed for power rail regulation in portable electronics. It delivers ±1.5% output accuracy, 250mV typical dropout at 600mA, and 50μVRMS output noise, operating across –40°C to +85°C ambient temperature.
For engineers reviewing the AP2111MP-2.5TRG1 datasheet, AP2111MP-2.5TRG1 pinout, AP2111MP-2.5TRG1 application, or AP2111MP-2.5TRG1 equivalent, key selection criteria include guaranteed 600mA load capability, fast transient response, PSRR of 65dB at 1kHz, thermal shutdown at 160°C, and compatibility with 1.0μF ceramic, tantalum, or aluminum electrolytic output capacitors.
Technical Context
The AP2111MP-2.5TRG1 implements a CMOS-based LDO architecture with internal voltage reference (0.8V), foldback current limiting (50mA short-circuit protection), and UVLO logic that disables regulation below VIN ≈ 2.5V. Its enable input (EN) supports active-high logic control with VIH ≥ 1.5V and VIL ≤ 0.4V.
It integrates an internal discharge resistor (60Ω) tied to VOUT when EN is low, ensuring rapid output voltage decay during shutdown. The regulator maintains stability with minimal 1.0μF output capacitance and achieves 0.02%/V line regulation and 0.2%/A load regulation over full operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1.5% - ensures stable core or I/O rail within tight tolerance across temperature and load. |
| Max Output Current | 600mA minimum - supports moderate-power digital subsystems without external current boosting. |
| Dropout Voltage | 250mV typical at 600mA - enables operation with VIN as low as 2.75V while maintaining regulation. |
| PSRR | 65dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Quiescent Current | 55μA typical - minimizes standby power loss in battery-powered systems with infrequent wake cycles. |
| Output Noise | 50μVRMS (10Hz–100kHz) - suitable for noise-sensitive analog circuitry such as ADC references or RF bias rails. |
| Thermal Shutdown | 160°C with 30°C hysteresis - protects against sustained overload or poor PCB thermal design without nuisance tripping. |
Pinout & Package
AP2111MP-2.5TRG1 is packaged in PSOP-8 (Power Small Outline Package, 8-pin), a thermally enhanced surface-mount variant of SOIC-8 with exposed pad for improved heat dissipation (θJC = 43.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 2.5V–6.0V input; must be applied before enabling load to avoid premature foldback activation. |
| VOUT (Pin 2) | Regulated output node | Delivers 2.5V ±1.5%; requires ≥1.0μF output capacitor for stability and transient response. |
| GND (Pins 3, 4, 5, 6, 7) | Power and signal ground reference | Five dedicated GND pins reduce impedance and improve PSRR; connect all to common low-impedance ground plane. |
| EN (Pin 8) | Enable control input | Active-high logic: ≥1.5V enables regulation; ≤0.4V disables output and activates 60Ω VOUT discharge path. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge on disable | 60Ω internal pull-down on VOUT ensures rapid voltage decay (<1ms for 10μF load), preventing unintended wake-up or latch-up. |
| Foldback current limit | 50mA short-circuit current limits power dissipation during fault, enabling safe operation without external current-sense circuitry. |
| Low-noise regulation | 50μVRMS output noise enables direct powering of precision analog circuits without additional filtering stages. |
| Flexible capacitor support | Stable with 1.0μF ceramic, tantalum, or aluminum electrolytic - reduces BOM count and simplifies layout vs. traditional LDOs requiring ≥10μF. |
| High PSRR at low frequency | 65dB at 100Hz and 1kHz - effectively rejects ripple from buck converter switching frequencies and their harmonics. |
Applications
| Laptop Power Management | Portable DVD Player Core Rail |
|---|---|
Use Scenario: Regulating 2.5V supply for USB controller, audio codec, or display interface ICs in clamshell-form factor laptops. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, low-noise 2.5V from a shared 3.3V or 5V system rail. Use Value: Enables reliable USB enumeration and low-jitter audio playback by suppressing switching noise from upstream DC/DC converters. |
Use Scenario: Providing stable 2.5V to laser diode driver and servo motor control ICs in battery-powered DVD players. IC Role / Device Role / Timing Role: Low-quiescent-current LDO sustaining standby mode while supporting fast wake-up for disc spin-up. Use Value: Extends battery life via 0.01μA shutdown current and maintains precise voltage during high-pulse motor loads using fast loop response. |
| LCD Monitor Logic Supply | Industrial HMI Controller Rail |
Use Scenario: Powering FPGA configuration memory, microcontroller I/O banks, and timing generator ICs in 19–24″ LCD monitors. IC Role / Device Role / Timing Role: Fixed-output LDO decoupling digital logic from noisy main 12V/5V supplies. Use Value: Ensures glitch-free HDMI handshake and stable LVDS transmitter operation via 0.2%/A load regulation and 65dB PSRR. |
Use Scenario: Delivering 2.5V to ARM Cortex-M4-based HMI controllers in factory-floor HMIs with wide ambient temperature swings. IC Role / Device Role / Timing Role: Temperature-stable voltage source meeting –40°C to +85°C industrial grade requirements. Use Value: Maintains ±1.5% output accuracy and 160°C thermal shutdown across extended temperature range, eliminating need for external thermal monitoring. |
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 |
|---|---|---|---|
| MCP1700T-2502E/TT | 300mA max output, 1.6μA quiescent current, no enable or discharge function. | Suitable only for ultra-low-power sensor nodes; insufficient for 600mA loads like USB controllers or motor drivers. | Select only if load current ≤300mA and shutdown discharge is unnecessary. |
| TPS7A2025PDQNR | 600mA output, 6.5μA IQ, 175mV dropout at 600mA, but no integrated VOUT discharge resistor. | Requires external MOSFET + RC network for discharge, increasing BOM cost and board area. | Prefer when lowest quiescent current is critical and board space allows discrete discharge circuit. |
Compared with MCP1700T-2502E/TT and TPS7A2025PDQNR, AP2111MP-2.5TRG1 uniquely combines 600mA drive, integrated auto-discharge, and 250mV dropout in PSOP-8 - making it optimal for space-constrained, medium-power portable designs requiring fast, controlled shutdown.
Availability
AP2111MP-2.5TRG1 is available at Aetrix Electronics and suitable for laptop computer power management, portable DVD player core rails, and LCD monitor logic supplies requiring stable component supply, RoHS-compliant packaging, and tape-and-reel delivery for automated assembly.
Supply support for AP2111MP-2.5TRG1 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 protection devices, with ISO 9001-certified quality systems and AEC-Q100-qualified automotive products.
The AP2111 product line targets cost-sensitive, high-volume portable and industrial applications requiring robust, feature-rich LDOs with integrated enable and discharge - balancing performance, thermal efficiency, and manufacturability in PSOP-8 and SOT packages.
FAQ
What is the minimum input voltage required for AP2111MP-2.5TRG1 to regulate 2.5V output at full 600mA load?
The datasheet specifies a typical dropout voltage of 250mV at 600mA, meaning VIN must be ≥2.75V to maintain regulation. Absolute minimum VIN is 2.5V per recommended operating conditions, but regulation margin degrades below 2.75V under full load due to increased dropout variation across temperature and process.
Does AP2111MP-2.5TRG1 require an external pull-up resistor on the EN pin?
No. The EN pin has an internal 3.0MΩ pull-down resistor (RPD), so it defaults to OFF when left floating. A logic-high signal (≥1.5V) is required to enable regulation; no external pull-up is needed unless system-level noise immunity demands forced logic state control.
Can AP2111MP-2.5TRG1 operate with a 0.47μF ceramic output capacitor?
No. The datasheet mandates ≥1.0μF output capacitance for stability across all supported capacitor types (ceramic, tantalum, aluminum electrolytic). Using 0.47μF risks oscillation, poor transient response, and potential thermal runaway under load transients.
Is the PSOP-8 package of AP2111MP-2.5TRG1 pin-compatible with standard SOIC-8 footprints?
No. PSOP-8 has identical pin count and spacing (1.27mm pitch) but features an exposed thermal pad on the bottom and different leadframe geometry. It requires a dedicated PSOP-8 footprint with thermal via array under the pad; direct substitution into SOIC-8 land patterns will compromise thermal performance and solder joint reliability.
AP2111MP-2.5TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 600mA
- Current - Output:
- 600mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (100Hz ~ 1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-PSOP
AP2111MP-2.5TRG1 FAQ
1.How can I place an order for AP2111MP-2.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2111MP-2.5TRG1 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 AP2111MP-2.5TRG1 reliable?
The price and inventory of AP2111MP-2.5TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2111MP-2.5TRG1 is usually 5 days.
3.What payment methods are accepted for AP2111MP-2.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2111MP-2.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2111MP-2.5TRG1?
AP2111MP-2.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2111MP-2.5TRG1 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 AP2111MP-2.5TRG1?
For technical support, including AP2111MP-2.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2111MP-2.5TRG1 requirements.
6.How does Aetrix verify that AP2111MP-2.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2111MP-2.5TRG1 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 AP2111MP-2.5TRG1 meets industry standards.
7.What is the process for return or replacement of AP2111MP-2.5TRG1?
All AP2111MP-2.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2111MP-2.5TRG1, 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 AP2111MP-2.5TRG1 part is unused and in its original packaging.
Return procedure for AP2111MP-2.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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