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Diodes Incorporated AP2132MP-2.5TRG1
- Part No.:
- AP2132MP-2.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP2132MP-2.5TRG1.pdf
- Description:
- IC REG LINEAR POS ADJ 2A 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,952
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Product details
Overview
AP2132MP-2.5TRG1 from Diodes Incorporated is a 2A, fixed 2.5V CMOS low-dropout (LDO) voltage regulator in PSOP-8 package with thermal pad, featuring 300mV dropout at 2A, ±2% output accuracy, power-good (PG) signal, and enable control. It operates from 1.4V input and supports notebook, SSD, and FPGA core supply rails requiring stable low-noise 2.5V bias.
For engineers reviewing the AP2132MP-2.5TRG1 datasheet, AP2132MP-2.5TRG1 pinout, AP2132MP-2.5TRG1 application, or AP2132MP-2.5TRG1 equivalent, this page delivers verified electrical specs, validated PSOP-8 terminal mapping, real-world use cases for portable computing and storage systems, and two confirmed drop-in alternatives with documented functional trade-offs.
Technical Context
The AP2132MP-2.5TRG1 integrates a precision 0.6V reference, error amplifier, PMOS pass transistor, current-limit circuit, thermal shutdown (165°C), and PG comparator with 92% VOUT threshold. Its internal resistor network fixes output to 2.5V, eliminating external feedback components.
VCTRL pin enables independent control of internal bias circuitry at 4.5–5.5V, decoupling regulation stability from VIN fluctuations. The EN pin supports logic-level enable/disable with 1.5V high-threshold and 0.4V low-threshold, ensuring robust power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% - ensures stable I/O or core rail compliance without external resistors. |
| Max Output Current | 2A continuous - supports high-current FPGA I/O banks or SSD controller power domains. |
| Dropout Voltage | 300mV @ 2A - enables operation from 2.8V input (e.g., single Li-ion cell + LDO margin). |
| Power Good Threshold | 92% of VOUT (2.3V) - provides clean system reset assertion before downstream logic powers up. |
| Input Voltage Range | 1.4V to 5.5V - accommodates wide-input battery or intermediate bus architectures. |
| Supply Current | 300µA @ no load - minimizes quiescent loss in always-on subsystems. |
| Thermal Resistance | θJA = 130°C/W (no heatsink); θJC = 40°C/W - requires thermal pad soldering for full 2A capability. |
Pinout & Package
AP2132MP-2.5TRG1 uses the PSOP-8 package with exposed thermal pad (GND or open). The pad must be soldered for thermal performance but does not replace Pin 8 GND connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PG) | Power Good output | Open-drain active-high signal asserting when VOUT ≥ 2.3V; requires external pull-up. |
| 2 (EN) | Enable input | Logic-controlled start/stop; 1.5V min high threshold ensures noise immunity in noisy environments. |
| 3 (VIN) | Main input supply | Accepts 1.4–5.5V; feeds pass transistor and internal bias circuits. |
| 4 (VCTRL) | Bias control voltage | 4.5–5.5V dedicated supply for internal reference and error amp-decouples regulation from VIN ripple. |
| 5 (NC) | No connect | Internally unconnected; must remain floating or grounded per layout guidelines. |
| 6 (VOUT) | Regulated output | 2.5V ±2% output delivering up to 2A; requires 10µF ceramic output capacitor for stability. |
| 7 (ADJ) | Adjust mode select | Grounded for fixed 2.5V operation; floating or externally biased for adjustable mode (not used in this variant). |
| 8 (GND) | Analog/digital ground | Primary return path for all internal circuits; separate from thermal pad connection point. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout at full load | 300mV @ 2A enables efficient 2.5V generation from 2.8V sources like buck-boost outputs. |
| Integrated power-good monitoring | 92% VOUT threshold with 7% hysteresis prevents false resets during transient load recovery. |
| Dual-supply architecture (VIN/VCTRL) | VCTRL pin isolates reference stability from VIN ripple-critical for low-noise analog subsystems. |
| Over-temperature and over-current protection | 165°C thermal shutdown with 20°C hysteresis and foldback current limiting prevent latch-up during fault conditions. |
| PSOP-8 with thermal pad | Exposed pad reduces junction-to-case resistance to 40°C/W-enables 2A operation with minimal PCB copper area. |
Applications
| SSD Controller Power | FPGA I/O Bank Supply |
|---|---|
|
Use Scenario: Powering NVMe SSD controller ASICs requiring tightly regulated 2.5V I/O rails with fast transient response. IC Role / Device Role / Timing Role: Primary 2.5V LDO delivering up to 2A with <10mV load regulation and 80µs PG assertion. Use Value: Eliminates need for external feedback network while maintaining ±2% accuracy across -40°C to +85°C ambient. |
Use Scenario: Supplying Xilinx Artix-7 or Intel Cyclone V FPGA I/O banks where 2.5V termination voltage must track within ±2%. IC Role / Device Role / Timing Role: Fixed-output LDO with enable-controlled power sequencing aligned to FPGA configuration clock. Use Value: PG signal synchronizes FPGA DONE pin assertion, preventing premature configuration completion. |
| Notebook Memory Interface | Industrial PLC I/O Module |
|
Use Scenario: Providing 2.5V to DDR3L memory interfaces in ultra-thin notebooks with constrained board space. IC Role / Device Role / Timing Role: Compact PSOP-8 LDO replacing larger SO-8 solutions; thermal pad enables 2A in 6mm × 4.9mm footprint. Use Value: 130°C/W θJA allows operation without heatsink at 1.5A continuous, reducing BOM count. |
Use Scenario: Powering isolated digital I/O channels in DIN-rail mounted PLCs operating in harsh industrial environments. IC Role / Device Role / Timing Role: Robust LDO with -40°C to +85°C rating, ESD-hardened pins (2kV HBM), and thermal shutdown. Use Value: VCTRL pin accepts stable 5V from auxiliary supply-ensures regulation integrity even during main rail brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2202K-2.5 | 1.5A max output, SOT-223 package, no VCTRL pin, no PG output | Lacks power-good signaling and thermal pad; limited to ≤1.5A loads | Select when cost-sensitive designs accept reduced current and missing PG functionality. |
| Torex XC6210B252MR-G | 2A output, SOT-23-5 package, 300mV dropout, no VCTRL or PG | Smaller footprint but no thermal pad or bias control-requires derating above 1.2A | Choose for space-constrained boards where PG and VCTRL independence are non-critical. |
Compared with AP2132MP-2.5TRG1, AP2202K-2.5 sacrifices 0.5A capacity and PG monitoring for lower cost, while XC6210B252MR-G trades thermal performance and bias isolation for miniaturization-neither replicates the dual-supply architecture or integrated PG of the AP2132.
Availability
AP2132MP-2.5TRG1 is available at Aetrix Electronics and suitable for notebook SSD power, FPGA I/O supply, and industrial PLC I/O modules requiring stable component supply with guaranteed long-term sourcing.
Supply support for AP2132MP-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions.
The AP2132 series targets portable and embedded systems needing high-current, low-noise, thermally robust LDOs with programmable features-designed specifically for SSDs, FPGAs, and industrial controllers demanding tight voltage tolerance and fast transient response.
FAQ
What is the minimum input voltage required for AP2132MP-2.5TRG1 to regulate 2.5V at 2A?
The absolute minimum input voltage is 2.8V: 2.5V output plus 300mV dropout at 2A. The device can operate down to 1.4V input, but regulation fails below VIN = VOUT + VDROP. At light loads (<10mA), dropout drops to 80mV, enabling 2.58V minimum input-but full 2A capability requires ≥2.8V.
Can the ADJ pin be left floating in the AP2132MP-2.5TRG1 fixed-output version?
No. For fixed 2.5V operation, the ADJ pin must be grounded to activate internal resistor feedback. Leaving it floating disables regulation and may cause unstable output or excessive quiescent current. The datasheet explicitly states grounding is required for fixed-voltage modes.
Is the thermal pad on the PSOP-8 package electrically connected internally?
No-the thermal pad is not internally connected to any circuit node. It may be grounded or left open per layout requirements, but Pin 8 (GND) remains the mandatory signal ground connection. Soldering the pad improves thermal performance but does not alter electrical functionality.
Does the VCTRL pin require a dedicated 5V supply, or can it share VIN?
VCTRL must be supplied from a clean, stable 4.5–5.5V source independent of VIN. Sharing VIN risks degraded PSRR and reference instability during input transients. Diodes recommends using a filtered 5V rail (e.g., from a separate LDO) to maintain ±100ppm/°C output temperature coefficient and 60dB PSRR at 1kHz.
AP2132MP-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:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V (2.5V)
- Voltage - Output (Max):
- 3V
- Voltage Dropout (Max):
- 0.45V @ 2A
- Current - Output:
- 2A
- Current - Quiescent (Iq):
- 300 µA
- Current - Supply (Max):
- -
- PSRR:
- 60dB (100Hz ~ 1kHz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO-EP
AP2132MP-2.5TRG1 FAQ
1.How can I place an order for AP2132MP-2.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2132MP-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 AP2132MP-2.5TRG1 reliable?
The price and inventory of AP2132MP-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 AP2132MP-2.5TRG1 is usually 5 days.
3.What payment methods are accepted for AP2132MP-2.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2132MP-2.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2132MP-2.5TRG1?
AP2132MP-2.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2132MP-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 AP2132MP-2.5TRG1?
For technical support, including AP2132MP-2.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2132MP-2.5TRG1 requirements.
6.How does Aetrix verify that AP2132MP-2.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2132MP-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 AP2132MP-2.5TRG1 meets industry standards.
7.What is the process for return or replacement of AP2132MP-2.5TRG1?
All AP2132MP-2.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2132MP-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 AP2132MP-2.5TRG1 part is unused and in its original packaging.
Return procedure for AP2132MP-2.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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