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Diodes Incorporated AP2132MP-1.2TRG1
 Exposed Pad.jpg)
- Part No.:
- AP2132MP-1.2TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP2132MP-1.2TRG1.pdf
- Description:
- IC REG LIN POS ADJ 2A 8PSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,768
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Product details
Overview
AP2132MP-1.2TRG1 from Diodes Incorporated is a 2A, 1.2V 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. It operates from 1.4V input and supports enable control, overcurrent/overtemperature protection, and high PSRR (60dB @ 100Hz–1kHz), targeting core power delivery in portable computing systems.
For engineers reviewing the AP2132MP-1.2TRG1 datasheet, AP2132MP-1.2TRG1 pinout, AP2132MP-1.2TRG1 application, or AP2132MP-1.2TRG1 equivalent, key selection criteria include dropout performance at full load, PG threshold tolerance, thermal resistance (θJC = 40°C/W), and PSOP-8 thermal pad grounding requirements for sustained 2A operation.
Technical Context
The AP2132MP-1.2TRG1 integrates a precision 0.6V reference, error amplifier, PMOS pass transistor, and dedicated VCTRL pin for external bias control-enabling stable regulation under fast load transients. Its internal resistor network fixes VOUT to 1.2V, eliminating external feedback components while retaining PG monitoring and EN logic-level compatibility (1.5V high / 0.4V low).
Designed for low-noise, high-accuracy power rails, it delivers 10mV line regulation and 10mV load regulation across 10mA–2A, with thermal shutdown at +165°C and 20°C hysteresis. The PSOP-8 package includes an exposed thermal pad that must be connected to GND (Pin 8) via PCB copper for effective junction-to-board heat transfer.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±2% - ensures stable core voltage for 1.2V I/O or logic rails without external resistors |
| Max Output Current | 2A continuous - supports high-current SoC or FPGA core domains with minimal derating at +85°C ambient |
| Dropout Voltage | 300mV @ 2A, VOUT=1.2V - enables operation from 1.4V input, critical for single-cell Li-ion or low-VIN battery systems |
| Power Good Threshold | 92% of VOUT (1.104V) with 7% hysteresis - provides clean, glitch-free system reset signaling during power-up/down |
| PSRR | 60dB @ 100Hz–1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input |
| Thermal Resistance | θJC = 40°C/W - requires thermal pad soldering to PCB ground plane to sustain 2A without exceeding +150°C junction limit |
| Enable Logic Threshold | VIH = 1.5V, VIL = 0.4V - compatible with 1.8V/3.3V GPIOs without level-shifting circuitry |
Pinout & Package
AP2132MP-1.2TRG1 uses the PSOP-8 package with exposed thermal pad (pin 1–8 top view). The thermal pad is electrically tied to GND and must be soldered to a PCB thermal plane for thermal performance; it does not replace Pin 8 connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PG) | Power Good open-drain output | Asserts high when VOUT ≥ 92% of 1.2V; requires external pull-up for logic-level interface |
| 2 (EN) | Active-high enable input | Controls regulator on/off; VIH = 1.5V min ensures compatibility with 1.8V microcontrollers |
| 3 (VIN) | Main input supply | Accepts 1.4V–5.5V; decoupling capacitor required within 5mm for stability and transient response |
| 4 (VCTRL) | Control voltage input | Bias source for internal circuitry; must be 4.5V–5.5V; connects to same rail as EN/VIN in most designs |
| 5 (NC) | No-connect terminal | Not internally bonded; must remain unconnected per datasheet to avoid parasitic coupling |
| 6 (VOUT) | Regulated output | Delivers 1.2V ±2% at up to 2A; requires 10µF ceramic output capacitor with ≤5mΩ ESR |
| 7 (ADJ) | Adjust configuration pin | Internally grounded for fixed 1.2V mode; floating or externally biased only in adjustable versions |
| 8 (GND) | Analog/digital ground | Primary return path; must be connected to PCB ground plane independent of thermal pad connection |
Key Features
| Feature | Design Value |
|---|---|
| Low Dropout at Full Load | 300mV @ 2A enables use with 1.4V input sources such as single-cell Li-ion batteries |
| Integrated Power Good | Dedicated PG pin with 92% threshold and 7% hysteresis eliminates need for external supervisor IC |
| Robust Protection | Current-limit and thermal shutdown at +165°C with 20°C hysteresis prevent latch-up during overload |
| High Accuracy Output | ±2% tolerance over -40°C to +85°C ensures reliable operation without post-production calibration |
| PSOP-8 Thermal Pad | Exposed pad reduces θJA to 130°C/W (no heatsink), enabling compact 2A power solutions |
Applications
| Portable Notebook Core Rail | USB-C PD Sink Power Management |
|---|---|
|
Use Scenario: Supplies 1.2V core voltage to Intel Atom or ARM Cortex-A series processors in ultra-thin notebooks. IC Role / Device Role / Timing Role: Primary LDO delivering regulated core power with fast transient response to CPU DVFS events. Use Value: 300mV dropout allows direct regulation from 1.5V intermediate bus, reducing conversion stages and improving efficiency by ~3% vs. higher-dropout alternatives. |
Use Scenario: Provides clean 1.2V bias to USB-C PD controller logic and Type-C port management ICs. IC Role / Device Role / Timing Role: Low-noise, enable-controlled LDO ensuring stable MCU and PHY operation during hot-plug events. Use Value: 60dB PSRR suppresses ripple from upstream buck converter, preventing false PD negotiation failures caused by supply noise. |
| Industrial IoT Sensor Hub | Automotive Infotainment Display Backlight Driver Bias |
|
Use Scenario: Powers 1.2V digital subsystems (MCU, ADC, wireless SoC) in sealed, fanless edge sensor nodes. IC Role / Device Role / Timing Role: High-reliability LDO with thermal shutdown protecting against enclosure overheating in enclosed enclosures. Use Value: ±2% output accuracy maintains ADC reference stability across -40°C to +85°C, eliminating calibration drift in field deployments. |
Use Scenario: Supplies 1.2V logic rail to LED driver ICs controlling TFT-LCD backlight brightness in automotive dash displays. IC Role / Device Role / Timing Role: Enable-synchronized LDO ensuring display logic powers up only after main 5V rail stabilizes. Use Value: PG signal directly drives display controller reset, guaranteeing deterministic boot sequence timing per AEC-Q100 startup requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B122MR-G | 1.2V fixed, 2A, PSOP-8, but no PG output and higher dropout (350mV @ 2A) | Lacks power-good signaling; unsuitable where system reset coordination is required | Select when PG is unnecessary and cost sensitivity outweighs functional completeness |
| Richtek RT9013-12GB | 1.2V fixed, 300mA max, SOT-23-5, ±2% accuracy, includes PG but lower current rating | Cannot support >300mA loads; limited to low-power peripherals, not core rails | Choose only for space-constrained sub-300mA bias rails where PSOP-8 footprint is prohibitive |
Compared with XC6210B122MR-G and RT9013-12GB, AP2132MP-1.2TRG1 uniquely combines 2A capability, integrated PG, and 300mV dropout in PSOP-8-making it the sole option for thermally demanding, system-coordinated 1.2V core power delivery.
Availability
AP2132MP-1.2TRG1 is available at Aetrix Electronics and suitable for notebook core power, USB-C PD sink management, industrial sensor hubs, and automotive infotainment display bias requiring stable component supply, long-term lifecycle assurance, and RoHS/Green compliance.
Supply support for AP2132MP-1.2TRG1 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-efficiency power management, signal integrity, and protection solutions for industrial, computing, and automotive markets.
The AP2132 series belongs to Diodes' high-current LDO portfolio, engineered specifically for low-VIN, high-accuracy core and I/O rail regulation in space-constrained portable and embedded systems.
FAQ
What is the minimum input voltage required for AP2132MP-1.2TRG1 to regulate 1.2V output at 2A?
The absolute minimum input voltage is 1.4V, but for stable 2A regulation at 1.2V output, VIN must be ≥1.5V to maintain margin above the 300mV dropout. At VIN = 1.4V, maximum sustainable output current drops to ~1.2A due to thermal limits and reduced headroom for control loop stability.
Can the ADJ pin be left floating in the AP2132MP-1.2TRG1 fixed-output version?
No. In the fixed-output AP2132MP-1.2TRG1, the ADJ pin is internally connected to GND via precision resistors. Leaving it floating may cause undefined behavior or output instability. The datasheet mandates grounding ADJ for fixed versions; it is only used externally in adjustable variants like AP2132MP-ADJ.
Is the thermal pad on the PSOP-8 package electrically connected to GND?
Yes-the exposed thermal pad is internally connected to GND (Pin 8) and must be soldered to a PCB ground plane. However, this does not eliminate the requirement to connect Pin 8 separately; both connections are necessary to ensure low-impedance ground return and optimal thermal conduction.
Does the VCTRL pin require an external decoupling capacitor?
Yes. A 1µF ceramic capacitor must be placed between VCTRL and GND, located within 3mm of the pin. This stabilizes the internal bias circuitry and prevents oscillation during fast load transients, as confirmed in the Typical Application Circuit and Electrical Characteristics test conditions.
AP2132MP-1.2TRG1 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:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V (1.2V)
- 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-PSOP
AP2132MP-1.2TRG1 FAQ
1.How can I place an order for AP2132MP-1.2TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2132MP-1.2TRG1 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-1.2TRG1 reliable?
The price and inventory of AP2132MP-1.2TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2132MP-1.2TRG1 is usually 5 days.
3.What payment methods are accepted for AP2132MP-1.2TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2132MP-1.2TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2132MP-1.2TRG1?
AP2132MP-1.2TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2132MP-1.2TRG1 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-1.2TRG1?
For technical support, including AP2132MP-1.2TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2132MP-1.2TRG1 requirements.
6.How does Aetrix verify that AP2132MP-1.2TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2132MP-1.2TRG1 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-1.2TRG1 meets industry standards.
7.What is the process for return or replacement of AP2132MP-1.2TRG1?
All AP2132MP-1.2TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2132MP-1.2TRG1, 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-1.2TRG1 part is unused and in its original packaging.
Return procedure for AP2132MP-1.2TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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