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Diodes Incorporated AP7175MP-13
- Part No.:
- AP7175MP-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
AP7175MP-13.pdf
- Description:
- IC REG LINEAR POS ADJ 3A 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,578
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Product details
Overview
AP7175MP-13 from Diodes Incorporated is a 3.0A ultra-low-dropout linear regulator with dual supply inputs (VIN: 1.2–3.65V, VCNTL: 3.0–5.5V), enable input, and open-drain power-good output. It delivers ±1.5% output voltage accuracy over load, line, and temperature (−40°C to +125°C), supports adjustable VOUT via external resistor divider, and achieves as low as 0.23V dropout at 3A/1.2V output. It is used in FPGA/DSP power sequencing on motherboards and server VTT rails.
For engineers reviewing the AP7175MP-13 datasheet, AP7175MP-13 pinout, AP7175MP-13 application, or AP7175MP-13 equivalent, key selection criteria include dual-supply architecture for reduced thermal dissipation, fast transient response with low-ESR MLCC support, integrated soft-start (0.6ms typ), POR monitoring on both VIN and VCNTL, and thermal shutdown at +170°C with 50°C hysteresis.
Technical Context
The AP7175MP-13 implements a dual-rail architecture: VIN supplies power path current while VCNTL powers control circuitry, enabling sub-0.25V dropout and minimizing junction-to-case thermal resistance. Its error amplifier compares FB voltage against a precision 0.8V reference, regulating VOUT via an NMOS pass element.
Power management functions include independent POR detection on VIN (0.9V threshold) and VCNTL (2.7V threshold), PG assertion after 2ms delay once FB reaches 92% of VREF, and short-circuit protection limiting current to 1.1A when FB < 0.2V. Internal soft-start controls output ramp rate to limit inrush current during enable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 1.2V to 3.65V - defines minimum input headroom for stable 1.2V+ outputs; enables use with modern low-voltage SoCs. |
| VCNTL Range | 3.0V to 5.5V - bias rail independent of VIN; allows clean control logic supply even during VIN brownout. |
| Output Current | 3.0A continuous - supports high-current VTT rails (e.g., 1.2V/3.3A FSB applications) without external boost. |
| Dropout Voltage | 0.23V at 3A/1.2V (TJ = +25°C) - enables operation with minimal input–output differential, reducing power loss and heat. |
| Output Accuracy | ±1.5% over −40°C to +125°C - ensures reliable regulation across industrial temperature range without calibration. |
| PG Delay Time | 2ms typical - provides deterministic power-good assertion timing for downstream sequencers and processors. |
| Thermal Shutdown | +170°C with +50°C hysteresis - protects device under sustained overload; automatic recovery avoids latch-up behavior. |
Pinout & Package
AP7175MP-13 is packaged in MSOP-8EP (exposed pad), optimized for thermal performance in space-constrained PCB layouts. The exposed pad must be soldered to VIN for optimal junction-to-board thermal conduction (θJC = 30°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Primary return path for feedback, control, and power circuits; requires low-impedance connection to system ground plane. |
| FB | Feedback input | Senses output voltage via resistor divider; internal 0.8V reference sets regulation point; ±100nA input bias minimizes divider error. |
| VOUT | Regulated output | Delivers up to 3A; internally discharged when disabled; requires ≥10µF ceramic capacitor for stability and transient response. |
| EN | Enable control | Active-high logic input; internal 5µA pull-up eliminates need for external resistor; enables soft-start on rising edge. |
| PG | Power-good indicator | Open-drain output pulled low if FB falls below 92% VREF, during thermal shutdown, or if VIN/VCNTL drop below POR thresholds. |
| VCNTL | Bias supply | Powers internal control circuitry; decoupling ≥1µF required near pin; separates noise-sensitive logic from power path. |
| VIN | Power input | Supplies output current path; decoupling ≥10µF required near pin; parasitic diode blocks reverse current from VOUT. |
| PAD (EP) | Thermal pad | Must be connected to VIN plane via ≥4 thermal vias (0.3mm drill, 1mm spacing); reduces θJA by ~30°C/W vs. non-exposed packages. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply architecture | VIN handles power delivery while VCNTL powers control logic - isolates noise, lowers dropout, and improves thermal efficiency. |
| Integrated soft-start | 0.6ms typical ramp time - limits inrush current during enable, preventing input rail collapse and downstream reset glitches. |
| Independent POR monitoring | Separate 0.9V VIN and 2.7V VCNTL thresholds - ensures safe startup only when both rails are valid, critical for FPGA sequencing. |
| Low-ESR capacitor compatibility | Stable with MLCCs down to 8µF at 3A - eliminates need for bulk electrolytics, saving board space and improving reliability. |
| Programmable VOUT | Set via external R1/R2 divider referenced to 0.8V - supports 0.8V to VIN–VDROP outputs; Kelvin sensing on R1 improves load regulation. |
Applications
| Front Side Bus VTT Rail | FPGA Core Power Sequencing |
|---|---|
|
Use Scenario: Providing 1.2V/3.3A termination voltage for Intel FSB interfaces in servers and workstations. IC Role / Device Role / Timing Role: Primary VTT LDO with precise tracking, fast transient response, and PG signaling for memory controller readiness. Use Value: Maintains signal integrity under dynamic load steps (10mA ↔ 3A) with <50mV droop, enabled by 0.23V dropout and 10µF COUT. |
Use Scenario: Powering FPGA core banks requiring strict voltage ramp timing relative to auxiliary rails. IC Role / Device Role / Timing Role: Sequenced enable target with independent VCNTL/VIN POR and 2ms PG delay for processor boot coordination. Use Value: Eliminates external sequencing ICs by integrating dual-rail monitoring, soft-start, and PG into single MSOP-8EP package. |
| Server Memory Subsystem | Industrial PC Motherboard |
|
Use Scenario: Delivering stable 1.5V/2.5A to DDR3/DDR4 memory termination networks in multi-slot server boards. IC Role / Device Role / Timing Role: High-current, low-noise VTT regulator with thermal shutdown and short-circuit protection for unattended operation. Use Value: Withstands 4.2A peak current and recovers autonomously after thermal events, ensuring memory subsystem uptime. |
Use Scenario: Regulating 1.8V/3A for embedded CPU I/O domains in fanless industrial PCs operating from −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Precision LDO with ±1.5% accuracy across full temperature range and robust ESD-hardened pins. Use Value: Guarantees functional compliance over extended temperature without derating, validated per JEDEC JESD22-A114. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7361-SP-13 | 1.5A max output, SO-8EP only, no VCNTL pin, single-supply architecture. | Lacks dual-rail sequencing capability; unsuitable for FPGA VTT where VIN/VCNTL independence is required. | Select only for cost-sensitive, lower-current (<1.5A) applications without strict sequencing needs. |
| TPL7407LDR | 7-channel 200mA NMOS array with integrated logic; not a single-channel 3A LDO. | Designed for GPIO-driven loads (LEDs, relays), not precision power regulation or VTT rails. | Not functionally equivalent; avoid for power regulation roles - mismatched current, accuracy, and topology. |
Compared with AP7175MP-13, AP7361-SP-13 offers lower cost but sacrifices 2× current capacity and dual-supply flexibility, while TPL7407LDR serves entirely different switching-load applications and cannot replace a precision 3A LDO in VTT or core power roles.
Availability
AP7175MP-13 is available at Aetrix Electronics and suitable for motherboard power delivery, server VTT rails, and FPGA sequencing applications requiring stable component supply, long-term industrial availability, and RoHS-compliant packaging.
Supply support for AP7175MP-13 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 for industrial, computing, and communications markets.
The AP7175 belongs to Diodes' high-current LDO family designed specifically for FPGA, DSP, and memory subsystem power sequencing - emphasizing dual-rail operation, tight accuracy, and integrated fault monitoring in compact thermally enhanced packages.
FAQ
What is the minimum recommended output capacitance for AP7175MP-13 at 3A load?
The datasheet specifies a minimum 8µF output capacitance for 3A load at 25% nominal VOUT deviation. However, 10µF low-ESR ceramic is the recommended value for guaranteed stability and ≤50mV transient droop. Using less than 8µF risks oscillation or excessive overshoot during load steps.
Can AP7175MP-13 operate with VIN = VCNTL tied together?
No - VIN and VCNTL must be supplied independently. Tying them violates the specified operating conditions: VIN is limited to 1.2–3.65V, while VCNTL requires 3.0–5.5V. Doing so risks exceeding VIN's absolute maximum rating (4.0V) or starving control circuitry if VIN drops below 3.0V.
How does the PG pin behave during thermal shutdown?
During thermal shutdown, the PG pin is actively pulled low regardless of FB voltage status. This provides unambiguous fault signaling to system controllers. PG remains low until junction temperature drops 50°C below the +170°C trip point, after which soft-start resumes and PG asserts high after 2ms delay if regulation is restored.
Is AP7175MP-13 suitable for new designs despite the "NOT RECOMMENDED FOR NEW DESIGN" notice?
No - Diodes explicitly marks AP7175 as "NOT RECOMMENDED FOR NEW DESIGN" with no alternate part offered. While fully functional and supported for existing production, Aetrix advises migration to newer Diodes LDOs like the AP7363 series for new schematics to ensure long-term supply and feature alignment.
AP7175MP-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 3.65V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.23V
- Voltage Dropout (Max):
- 0.42V @ 3A
- Current - Output:
- 3A
- Current - Quiescent (Iq):
- 1.5 mA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Soft Start
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP-EP
AP7175MP-13 FAQ
1.How can I place an order for AP7175MP-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7175MP-13 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 AP7175MP-13 reliable?
The price and inventory of AP7175MP-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7175MP-13 is usually 5 days.
3.What payment methods are accepted for AP7175MP-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7175MP-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7175MP-13?
AP7175MP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7175MP-13 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 AP7175MP-13?
For technical support, including AP7175MP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7175MP-13 requirements.
6.How does Aetrix verify that AP7175MP-13 is sourced from the original manufacturer or authorized distributors?
All AP7175MP-13 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 AP7175MP-13 meets industry standards.
7.What is the process for return or replacement of AP7175MP-13?
All AP7175MP-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7175MP-13, 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 AP7175MP-13 part is unused and in its original packaging.
Return procedure for AP7175MP-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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