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Diodes Incorporated AP2132MP-1.5TRG1
 Exposed Pad.jpg)
- Part No.:
- AP2132MP-1.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP2132MP-1.5TRG1.pdf
- Description:
- IC REG LIN POS ADJ 2A 8PSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,580
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Product details
Overview
AP2132MP-1.5TRG1 from Diodes Incorporated is a 2A, 1.5V 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 - deployed in notebook power rails for core voltage regulation.
For engineers reviewing the AP2132MP-1.5TRG1 datasheet, AP2132MP-1.5TRG1 pinout, AP2132MP-1.5TRG1 application, or AP2132MP-1.5TRG1 equivalent, key selection criteria include dropout performance at full load, PG threshold tolerance, enable logic compatibility, and thermal resistance (θJC = 40°C/W) under sustained 2A operation.
Technical Context
The AP2132MP-1.5TRG1 integrates a precision 0.6V reference, error amplifier, PMOS pass transistor, current-limit circuitry, thermal shutdown (165°C), and enable-controlled bias network. Its VCTRL pin accepts 4.5–5.5V to stabilize internal control circuitry independently of VIN.
It operates across 1.4V–5.5V input range with guaranteed 2A output at VOUT ≥ 1.5V, delivering 92% VOUT power-good assertion with 7% hysteresis and ±100 ppm/°C temperature coefficient - optimized for stable low-voltage rail generation where input-to-output margin is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% (ensures compliance with 1.5V I/O or core supply tolerances) |
| Max Output Current | 2A continuous (supports high-current SoC or GPU auxiliary rails) |
| Dropout Voltage | 300mV @ 2A, VOUT=1.5V (enables operation from 1.8V input in battery-backed systems) |
| Power Good Threshold | 92% of VOUT with 7% hysteresis (provides clean, noise-immune reset signaling to host controller) |
| Supply Current | 300µA @ no load (minimizes quiescent loss in always-on subsystems) |
| Thermal Resistance θJC | 40°C/W (enables direct thermal pad coupling to PCB copper for 2A steady-state dissipation) |
| Enable Logic Threshold | VIH = 1.5V, VIL = 0.4V (compatible with 1.8V/3.3V GPIO without level-shifting) |
Pinout & Package
AP2132MP-1.5TRG1 is housed in a thermally enhanced PSOP-8 package with exposed thermal pad (GND or open). The 8-pin layout supports compact layout with dedicated PG, EN, VCTRL, ADJ (grounded internally for fixed output), and NC pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PG) | Power-Good Open-Drain Output | Asserts high when VOUT ≥ 92% of 1.5V; requires external pull-up for host interrupt or reset sequencing |
| 2 (EN) | Active-High Enable Input | Valid high at ≥1.5V; enables regulator only when VIN ≥ 1.4V and thermal limits are observed |
| 3 (VIN) | Main Input Supply | Accepts 1.4V–5.5V; powers pass transistor and internal bias circuits |
| 4 (VCTRL) | Control Voltage Input | Must be 4.5–5.5V; isolates control circuitry from noisy VIN, improving PSRR and stability |
| 5 (NC) | No Connect | Not bonded; must remain unconnected per design - no routing or stitching allowed |
| 6 (VOUT) | Regulated Output | Delivers 1.5V ±2% at up to 2A; requires 10µF ceramic output capacitor for stability |
| 7 (ADJ) | Internal Feedback Node | Internally grounded for fixed 1.5V output; not used externally - leave unconnected |
| 8 (GND) | Analog/Digital Ground | Primary ground return; thermal pad may be connected to GND plane for improved θJA |
Key Features
| Feature | Design Value |
|---|---|
| Low Dropout at Full Load | 300mV @ 2A ensures usable headroom from single-cell Li-ion (3.0V min) or 1.8V system rails |
| Integrated Power-Good Signal | Dedicated PG pin with 92% threshold and 7% hysteresis eliminates need for external supervisor IC |
| VCTRL Pin Architecture | Separate 4.5–5.5V control rail decouples bias stability from noisy main input, enhancing PSRR >60dB @ 1kHz |
| Over-Temperature Protection | Thermal shutdown at +165°C with +20°C hysteresis prevents latch-up during transient overload or poor heatsinking |
| PSOP-8 with Thermal Pad | Exposed pad reduces junction-to-case thermal resistance to 40°C/W, enabling 2A operation without heatsink |
Applications
| Mobile Notebook Core Rail | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Supplies 1.5V to DDR3/DDR4 memory termination or FPGA I/O banks in space-constrained notebooks. IC Role / Device Role / Timing Role: Primary LDO regulator providing clean, low-noise 1.5V with fast load transient response (<100µs recovery). Use Value: 300mV dropout allows direct regulation from 1.8V intermediate bus, reducing conversion stages and BOM count. |
Use Scenario: Powers isolated analog front-end ADCs and digital isolators in programmable logic controller modules. IC Role / Device Role / Timing Role: Stable 1.5V reference-grade supply with PG confirmation for fault-tolerant startup sequencing. Use Value: ±2% output accuracy and ±100 ppm/°C drift ensure consistent ADC reference stability across -40°C to +85°C ambient. |
| Automotive Infotainment Display | Medical Portable Monitor |
|
Use Scenario: Delivers 1.5V to display timing controller (TCON) and LVDS transmitter in automotive dash displays. IC Role / Device Role / Timing Role: Regulator with VCTRL isolation and high PSRR suppresses EMI from switching DC/DC converters nearby. Use Value: 60dB PSRR @ 1kHz minimizes ripple-induced jitter on pixel clock signals, preserving image integrity. |
Use Scenario: Powers low-power microcontroller peripherals and sensor interface circuitry in battery-operated patient monitors. IC Role / Device Role / Timing Role: Always-on LDO with 300µA quiescent current and PG monitoring for safe brown-out detection. Use Value: PG signal triggers controlled MCU shutdown before VOUT drops below 1.38V, preventing data corruption in SRAM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2202K-1.5TRG1 | 1A max output, SOT-23-5 package, no VCTRL pin, no PG output | Suitable for lower-current, cost-sensitive designs without sequencing or supervision needs | Select when 1A suffices and board space is extremely limited; lacks PG and thermal performance of AP2132 |
| Torex XC6210B152MR-G | 2A, 1.5V fixed, SOT-23-5, no VCTRL, no PG, higher dropout (450mV @ 2A) | Used in consumer wearables where PG and VCTRL are omitted to reduce cost and footprint | Choose if PSOP-8 thermal pad is unnecessary and 450mV dropout is acceptable in 1.8V input systems |
Compared with AP2202K-1.5TRG1 and XC6210B152MR-G, AP2132MP-1.5TRG1 uniquely delivers 2A output with integrated PG, VCTRL isolation, and 300mV dropout in PSOP-8 - making it the only option among the three qualified for thermally demanding, sequenced, or high-reliability 1.5V rail applications.
Availability
AP2132MP-1.5TRG1 is available at Aetrix Electronics and suitable for notebook power management, industrial PLC I/O modules, automotive infotainment displays, and portable medical monitors requiring stable component supply and long-term production continuity.
Supply support for AP2132MP-1.5TRG1 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-efficiency power management, signal integrity, and protection solutions for industrial, computing, and automotive markets.
The AP2132 series belongs to Diodes' high-current LDO portfolio, designed specifically for low-noise, high-accuracy voltage regulation in space-constrained, thermally challenging applications where traditional regulators fail to meet dropout or sequencing requirements.
FAQ
What is the minimum input voltage required for AP2132MP-1.5TRG1 to regulate 1.5V output at 2A?
The absolute minimum input voltage is 1.4V, but to sustain 2A output with 300mV dropout, VIN must be ≥1.8V. At VIN = 1.8V, the device maintains regulation with VOUT = 1.5V ±2% across -40°C to +85°C ambient, provided VCTRL is held at 4.5–5.5V and thermal pad is properly soldered.
Can the ADJ pin be left floating on the AP2132MP-1.5TRG1?
No - the ADJ pin is internally connected to ground for fixed 1.5V operation and must remain unconnected (not floated or tied externally). Floating ADJ risks undefined feedback behavior and potential regulation failure; the datasheet explicitly states ADJ is grounded internally and unused in fixed versions.
Is the thermal pad on the PSOP-8 package electrically connected?
Yes, the thermal pad is internally connected to GND (Pin 8) and must be soldered to a PCB GND plane for optimal thermal performance. Leaving it open increases θJA by ~50°C/W and risks thermal shutdown at 2A load; Diodes recommends using the suggested pad layout with 3.6mm × 2.7mm stencil opening.
Does AP2132MP-1.5TRG1 require an external capacitor on the VCTRL pin?
Yes - a 1µF ceramic capacitor must be placed between VCTRL and GND, close to the pin, as specified in the Typical Application Circuit. This stabilizes the internal control circuitry and is essential for achieving rated PSRR (>60dB) and preventing oscillation under dynamic load conditions.
AP2132MP-1.5TRG1 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:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V (1.5V)
- 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-PSOP
AP2132MP-1.5TRG1 FAQ
1.How can I place an order for AP2132MP-1.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2132MP-1.5TRG1 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-1.5TRG1 reliable?
The price and inventory of AP2132MP-1.5TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2132MP-1.5TRG1 is usually 5 days.
3.What payment methods are accepted for AP2132MP-1.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2132MP-1.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2132MP-1.5TRG1?
AP2132MP-1.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2132MP-1.5TRG1 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-1.5TRG1?
For technical support, including AP2132MP-1.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2132MP-1.5TRG1 requirements.
6.How does Aetrix verify that AP2132MP-1.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2132MP-1.5TRG1 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-1.5TRG1 meets industry standards.
7.What is the process for return or replacement of AP2132MP-1.5TRG1?
All AP2132MP-1.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2132MP-1.5TRG1, 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-1.5TRG1 part is unused and in its original packaging.
Return procedure for AP2132MP-1.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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