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Diodes Incorporated AP2132BMP-2.5TRG1
- Part No.:
- AP2132BMP-2.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP2132BMP-2.5TRG1.pdf
- Description:
- IC REG LINEAR POS ADJ 2A 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:14,884
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Product details
Overview
AP2132BMP-2.5TRG1 from Diodes Incorporated is a 2A, 2.5V fixed-output CMOS low-dropout (LDO) regulator in PSOP-8 package with thermal pad, featuring 300mV dropout at 2A, ±2% output voltage accuracy, and integrated power-good (PG) signal asserting at 92% of rated VOUT-designed for high-current core logic rails in portable computing systems.
For engineers reviewing the AP2132BMP-2.5TRG1 datasheet, AP2132BMP-2.5TRG1 pinout, AP2132BMP-2.5TRG1 application, or AP2132BMP-2.5TRG1 equivalent, key selection criteria include dropout performance under 2A load, PG threshold tolerance, enable logic compatibility, thermal resistance (θJA = 53°C/W), and PSOP-8 thermal pad layout requirements.
Technical Context
The AP2132BMP-2.5TRG1 integrates a precision 0.8V reference, error amplifier, PMOS pass transistor, and current-limit/thermal shutdown protection. Its VCTRL pin accepts 4.5–5.5V to bias internal control circuitry independently of VIN, enabling stable regulation even when input drops near VOUT.
It delivers regulated 2.5V output with 10mV load regulation (10mA–2A) and 2mV line regulation (VOUT+0.5V ≤ VIN ≤ 5V). The PG signal transitions high only after VOUT stabilizes ≥2.3V (92% of 2.5V), with 7% hysteresis to prevent chatter during brown-out recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% (2.45V–2.55V at 25°C, 10mA load) |
| Max Output Current | 2A continuous; supports CPU/GPU core rail peak loads without thermal derating on 2-layer PCB |
| Dropout Voltage | 300mV @ 2A, 2.5V output - enables operation from 2.8V input (e.g., single-cell Li-ion + LDO margin) |
| Power Good Threshold | 92% of VOUT (2.3V) with 7% hysteresis - provides clean reset signaling for SoC boot sequencing |
| Supply Current | 300µA typical at no load - minimizes quiescent loss in always-on subsystems |
| PSRR | 60dB @ 100Hz/1kHz - suppresses switching noise from upstream DC-DC converters |
| Thermal Resistance | θJA = 53°C/W (2-layer FR-4, 1cm² thermal pad) - requires copper pour under exposed pad for full 2A rating |
Pinout & Package
AP2132BMP-2.5TRG1 uses a PSOP-8 package with exposed thermal pad (pin 5 NC, pin 8 GND). The thermal pad must be soldered to PCB ground plane for thermal performance and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PG) | Power Good open-drain output | Asserts high when VOUT ≥ 2.3V; pulls low during undervoltage or shutdown - connects to SoC RESET_N with pull-up |
| 2 (EN) | Enable input | Active-high logic: ≥1.2V enables regulator; ≤0.4V disables - compatible with 1.8V/3.3V GPIO |
| 3 (VIN) | Main input supply | Accepts 1.4V–5.5V; supplies pass transistor and internal bias - decoupled with 10µF ceramic |
| 4 (VCTRL) | Control voltage input | 4.5V–5.5V dedicated bias rail for internal circuitry - isolates regulation stability from VIN ripple |
| 5 (NC) | No connect | Not internally bonded - must remain unconnected per datasheet |
| 6 (VOUT) | Regulated output | 2.5V ±2% source for core logic; requires 10µF output capacitance for stability |
| 7 (ADJ) | Adjust/ground select | Internally tied to GND for fixed 2.5V mode - leave floating or grounded; do not route external resistors |
| 8 (GND) | Ground reference | Common return for VIN, VCTRL, VOUT, and thermal pad - low-impedance plane required |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout at full load | 300mV @ 2A ensures usable headroom from 2.8V input sources like buck-boost converters |
| Independent VCTRL biasing | Separate 4.5–5.5V control rail prevents VIN transients from disrupting regulation accuracy |
| Integrated overcurrent & thermal protection | Current limit ≥3A and thermal shutdown at +165°C prevent damage during short-circuit or overload |
| Precision power-good signaling | 92% VOUT threshold with 7% hysteresis eliminates false resets during dynamic load steps |
| High PSRR at low frequency | 60dB rejection at 100Hz/1kHz suppresses noise from adjacent switching regulators |
Applications
| Notebook Core Voltage Rail | Embedded Controller Power |
|---|---|
Use Scenario: Supplies 2.5V to CPU I/O buffers and memory interface circuits in ultra-thin notebooks with tight thermal constraints. IC Role / Device Role / Timing Role: Primary post-regulator delivering stable, low-noise 2.5V from intermediate 3.3V or 5V bus. Use Value: 300mV dropout enables use of lower-input intermediate rails, reducing overall system power loss by ~8% versus higher-dropout alternatives. |
Use Scenario: Powers ARM Cortex-M based embedded controllers in industrial HMIs requiring reliable startup and brown-out immunity. IC Role / Device Role / Timing Role: System supervisor rail with precise PG signaling to coordinate firmware initialization sequence. Use Value: 92% PG threshold and 7% hysteresis ensure deterministic reset assertion across -40°C to +85°C ambient range. |
| SSD Controller Bias Supply | USB-C PD Sink Logic Rail |
Use Scenario: Provides 2.5V bias to NAND flash controller ASICs in M.2 SSD modules where space and thermal density are critical. IC Role / Device Role / Timing Role: High-current LDO with fast transient response for burst-mode NAND access cycles. Use Value: 10mV load regulation maintains <±0.4% voltage deviation during 0→2A load steps, preventing controller timing violations. |
Use Scenario: Supplies 2.5V to USB-C PD policy engine and port controller ICs in compact docking stations. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 5V USB-C VBUS, enabled only when VBUS is valid. Use Value: EN pin compatibility with 3.3V GPIO allows direct control from PD controller, eliminating level-shifter components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A4700RGWR | 2A, 2.5V fixed, 250mV dropout @ 2A, but requires minimum 2.7V VIN and lacks VCTRL pin | No independent VCTRL rail - less immune to VIN ripple; higher minimum input limits use with Li-ion sources | Select if lowest possible dropout is critical and input never falls below 2.7V; avoid if using 2.8V intermediate rails |
| MCP1826-2502E/DB | 2A, 2.5V fixed, 400mV dropout @ 2A, no PG output, θJA = 62°C/W in SOT-223 | Lacks power-good signaling and has higher thermal resistance - unsuitable for dense PCB layouts or high ambient temps | Choose only for cost-sensitive designs where PG is unused and thermal margin exceeds 15°C |
Compared with TPS7A4700RGWR and MCP1826-2502E/DB, AP2132BMP-2.5TRG1 uniquely combines 2.8V minimum input capability, VCTRL isolation, and factory-trimmed PG threshold - making it optimal for portable systems with dynamic input sources and strict sequencing requirements.
Availability
AP2132BMP-2.5TRG1 is available at Aetrix Electronics and suitable for notebook power delivery, SSD controller biasing, and USB-C PD sink logic rails requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant tape-and-reel packaging.
Supply support for AP2132BMP-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 AP2132B series belongs to Diodes' high-current CMOS LDO portfolio, engineered specifically for portable computing and storage systems demanding low dropout, precision output, and robust protection features under thermally constrained conditions.
FAQ
What is the minimum input voltage required for AP2132BMP-2.5TRG1 to regulate 2.5V output at 2A?
The absolute minimum input voltage is 2.8V: 2.5V output plus 300mV dropout. Operation below this causes VOUT to droop proportionally. The device functions down to 1.4V input but cannot sustain 2.5V output below 2.8V at full load. Input decoupling with ≥10µF ceramic is mandatory for stability at 2A.
Can the ADJ pin be left unconnected in the fixed 2.5V version?
Yes - the ADJ pin is internally connected to GND for fixed-output versions like AP2132BMP-2.5TRG1. It may be left floating or tied to GND; external resistor networks must not be attached, as they will disrupt the factory-set output voltage and potentially cause instability.
How does the VCTRL pin affect regulator performance?
VCTRL supplies dedicated bias to internal circuitry (error amp, reference, PG comparator) at 4.5–5.5V. This isolates regulation accuracy and PG timing from VIN ripple or sag, ensuring consistent 2.5V output and clean 2.3V PG assertion even when VIN fluctuates - critical in noisy DC-DC-fed systems.
Is thermal pad connection mandatory for AP2132BMP-2.5TRG1?
Yes - the PSOP-8 thermal pad (exposed die attach pad) must be soldered to a PCB copper pour tied to GND. Without this, θJA degrades from 53°C/W to >80°C/W, causing thermal shutdown at <1.2A load. Minimum recommended pad size is 1.0cm × 1.0cm per datasheet.
AP2132BMP-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):
- 0.8V (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
AP2132BMP-2.5TRG1 FAQ
1.How can I place an order for AP2132BMP-2.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2132BMP-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 AP2132BMP-2.5TRG1 reliable?
The price and inventory of AP2132BMP-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 AP2132BMP-2.5TRG1 is usually 5 days.
3.What payment methods are accepted for AP2132BMP-2.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2132BMP-2.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2132BMP-2.5TRG1?
AP2132BMP-2.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2132BMP-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 AP2132BMP-2.5TRG1?
For technical support, including AP2132BMP-2.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2132BMP-2.5TRG1 requirements.
6.How does Aetrix verify that AP2132BMP-2.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2132BMP-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 AP2132BMP-2.5TRG1 meets industry standards.
7.What is the process for return or replacement of AP2132BMP-2.5TRG1?
All AP2132BMP-2.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2132BMP-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 AP2132BMP-2.5TRG1 part is unused and in its original packaging.
Return procedure for AP2132BMP-2.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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