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Diodes Incorporated AP2112R5-2.5TRG1
- Part No.:
- AP2112R5-2.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-89-5/6
- Datasheet:
-
AP2112R5-2.5TRG1.pdf
- Description:
- IC REG LINEAR 2.5V 600MA SOT89-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,489
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Product details
Overview
AP2112R5-2.5TRG1 from Diodes Incorporated is a fixed 2.5V, 600mA CMOS low-dropout linear regulator in SOT89-5 (R5) package with enable control, ±1.5% output accuracy, and 250mV typical dropout at full load. It delivers stable power to core logic rails in space-constrained portable electronics requiring fast transient response and auto-discharge functionality.
For engineers reviewing the AP2112R5-2.5TRG1 datasheet, AP2112R5-2.5TRG1 pinout, AP2112R5-2.5TRG1 application, or AP2112R5-2.5TRG1 equivalent, key selection criteria include dropout voltage at 600mA, EN logic thresholds, thermal shutdown behavior, and compatibility with 1µF ceramic output capacitors.
Technical Context
The AP2112R5-2.5TRG1 integrates a precision bandgap reference, error amplifier, and PMOS pass transistor in a CMOS process, enabling low quiescent current (55µA typ.) and fast loop response for line/load transients. Its foldback short-circuit protection limits output current to 50mA during fault conditions.
It features an internal 60Ω VOUT-to-GND discharge path when disabled, eliminating external bleed resistors. The device operates across –40°C to +85°C ambient and supports input voltages from 2.5V to 6.0V, with PSRR of –65dB at both 100Hz and 1kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1.5% - ensures stable core supply for 2.5V I/O or analog subsystems without external feedback. |
| Max Output Current | 600mA minimum - sufficient for powering microcontroller cores, FPGA I/O banks, or sensor signal chains. |
| Dropout Voltage | 250mV typical @ 600mA - enables operation from 2.75V input, supporting single-cell Li-ion or 3.3V rail derivation. |
| Quiescent Current | 55µA typical - minimizes standby power loss in battery-powered systems with frequent sleep/wake cycles. |
| PSRR | –65dB @ 100Hz/1kHz - suppresses ripple from noisy switching supplies feeding the LDO input. |
| Enable Thresholds | VIL ≤ 0.4V, VIH ≥ 1.5V - compatible with 1.8V/3.3V GPIO without level-shifting. |
| Thermal Shutdown | Activates at +160°C with +25°C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
SOT89-5 (R5) package: 5-pin surface-mount outline with exposed thermal pad (pin 2 = GND), optimized for moderate-power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 2.5V output; connects directly to load; requires 1µF ceramic capacitor to GND for stability. |
| 2 | VIN | Input supply (2.5–6.0V); must be decoupled with 1µF ceramic capacitor close to pin. |
| 3 | NC | No connection - electrically isolated; no routing or soldering required. |
| 4 | GND | Power ground return; ties to PCB thermal pad for enhanced heat dissipation. |
| 5 | EN | Active-high enable; drives high (>1.5V) to activate regulator, low (<0.4V) to disable with 60Ω auto-discharge. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge on disable | 60Ω internal VOUT-to-GND path eliminates hold-up voltage, enabling safe sequencing in multi-rail systems. |
| Stable with 1µF output cap | Supports ceramic, tantalum, and aluminum electrolytic capacitors - reduces BOM count and board area vs. larger-cap requirements. |
| Foldback short-circuit protection | Limits fault current to 50mA - prevents thermal runaway while allowing recovery after overload removal. |
| Low noise output | 50µVRMS (10Hz–100kHz) - suitable for noise-sensitive analog circuits like ADC references or RF bias rails. |
| Wide input range | 2.5V to 6.0V operation - accommodates varied sources including Li-ion batteries, USB ports, and intermediate DC-DC outputs. |
Applications
| Portable DVD Power Management | LCD Monitor Logic Supply |
|---|---|
Use Scenario: Supplies 2.5V to DVD player main controller and servo ICs during battery or AC adapter operation. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, sequenced power with fast start-up (<20µs) and auto-discharge for safe reset. Use Value: Eliminates need for external discharge circuitry and maintains <±1.5% regulation across battery voltage sag (3.0–4.2V). |
Use Scenario: Powers timing-critical LVDS transmitter ICs and display interface logic in 19–24″ LCD monitors. IC Role / Device Role / Timing Role: Low-noise, high-PSRR local regulator for display data path components sensitive to supply ripple. Use Value: Delivers 50µVRMS noise and –65dB PSRR to prevent image artifacts and timing jitter in high-resolution video streams. |
| Laptop Subsystem Rail | Industrial Sensor Node Core Supply |
Use Scenario: Generates 2.5V for embedded security co-processors and touch controller ASICs in ultrabook designs. IC Role / Device Role / Timing Role: Enable-controlled auxiliary LDO enabling dynamic power gating of non-critical subsystems. Use Value: Achieves 0.01µA standby current during suspend mode, extending battery life without compromising wake latency. |
Use Scenario: Provides regulated 2.5V to ultra-low-power MCU and precision analog front-end in wireless sensor nodes. IC Role / Device Role / Timing Role: High-accuracy, thermally robust LDO operating across –40°C to +85°C industrial temperature range. Use Value: Maintains ±1.5% output tolerance and thermal shutdown at +160°C junction temperature under continuous 600mA load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 300mA max output, 170mV dropout @ 250mA, no auto-discharge, SOT23-3 package | Limited to lower-current peripherals; lacks EN-controlled discharge for sequencing | Choose for cost-sensitive, low-power applications where 600mA headroom and discharge are unnecessary |
| Torex XC6206P252MR-G | 500mA max output, 200mV dropout @ 500mA, ±2% accuracy, no thermal shutdown | Lower current capability and wider voltage tolerance; no overtemperature protection | Prefer for space-constrained designs needing smaller SOT23-3 footprint, accepting reduced safety margin |
Compared with MCP1700T-2502E/TT and XC6206P252MR-G, the AP2112R5-2.5TRG1 uniquely combines 600mA drive, ±1.5% accuracy, integrated auto-discharge, and thermal shutdown in a thermally enhanced SOT89-5 package-making it optimal for mid-power portable systems demanding reliability and sequencing control.
Availability
AP2112R5-2.5TRG1 is available at Aetrix Electronics and suitable for portable DVD players, LCD monitor logic supplies, laptop subsystem rails, and industrial sensor node core supplies requiring stable component supply with guaranteed long-term availability.
Supply support for AP2112R5-2.5TRG1 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP2112 series belongs to Diodes' high-performance LDO portfolio, designed specifically for portable and space-constrained electronics requiring low dropout, low noise, and precise voltage regulation with enable control.
FAQ
What is the minimum input voltage required for AP2112R5-2.5TRG1 to regulate at 2.5V?
The AP2112R5-2.5TRG1 requires a minimum input voltage of 2.5V per its Recommended Operating Conditions. At 600mA load, the typical dropout is 250mV, so reliable regulation begins at VIN ≥ 2.75V. Below 2.5V, the device enters dropout and cannot maintain 2.5V output regardless of load.
Does AP2112R5-2.5TRG1 require an external pull-down resistor on the EN pin?
No. The AP2112R5-2.5TRG1 includes an internal 3.0MΩ EN pull-down resistor, ensuring default disable state when EN is left floating. An external resistor is unnecessary unless specific timing or noise immunity requirements dictate stronger pull-down strength.
Can AP2112R5-2.5TRG1 be used with a 0.47µF ceramic output capacitor?
No. The datasheet specifies stability with ≥1.0µF output capacitance (ceramic, tantalum, or aluminum). Using 0.47µF violates the minimum requirement and risks oscillation or poor transient response. Always use 1.0µF or greater with ESR ≤ 100mΩ.
How does the auto-discharge function behave during EN deactivation?
When EN is driven low, the AP2112R5-2.5TRG1 activates an internal 60Ω switch between VOUT and GND, discharging the output capacitor rapidly. This ensures VOUT falls below 0.1V within milliseconds, preventing unintended operation of downstream logic during power-down sequences.
AP2112R5-2.5TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-89-5/6
- 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:
- 65sB (100Hz ~ 1KHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-5
AP2112R5-2.5TRG1 FAQ
1.How can I place an order for AP2112R5-2.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2112R5-2.5TRG1 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 AP2112R5-2.5TRG1 reliable?
The price and inventory of AP2112R5-2.5TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2112R5-2.5TRG1 is usually 5 days.
3.What payment methods are accepted for AP2112R5-2.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2112R5-2.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2112R5-2.5TRG1?
AP2112R5-2.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2112R5-2.5TRG1 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 AP2112R5-2.5TRG1?
For technical support, including AP2112R5-2.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2112R5-2.5TRG1 requirements.
6.How does Aetrix verify that AP2112R5-2.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2112R5-2.5TRG1 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 AP2112R5-2.5TRG1 meets industry standards.
7.What is the process for return or replacement of AP2112R5-2.5TRG1?
All AP2112R5-2.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2112R5-2.5TRG1, 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 AP2112R5-2.5TRG1 part is unused and in its original packaging.
Return procedure for AP2112R5-2.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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