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HomeProductsIntegrated Circuits (ICs)PMIC - Power Distribution Switches, Load DriversAP2552AFDC-7
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AP2552AFDC-7 - Diodes Incorporated

Manufacturer Part Number
AP2552AFDC-7
Manufacturer
Diodes Incorporated
Allelco Part Number
32D-AP2552AFDC-7
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
241,500 pcs available, New & Original
Parts Description
IC PWR SWITCH P-CHANNEL 1:1 6DFN
Package
U-DFN2020-6 (Type C)
Data sheet
AP2552AFDC-7.pdf

Environmental Information

Diodes Environmental Compliance Cert.pdf
RoHs Status
ROHS3 Compliant
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In stock: 241500

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Specifications

AP2552AFDC-7 Tech Specifications
Diodes Incorporated - AP2552AFDC-7 technical specifications, attributes, parameters and parts with similar specifications to Diodes Incorporated - AP2552AFDC-7

Product Attribute Attribute Value
Manufacturer Diodes Incorporated
Voltage - Supply (Vcc/Vdd) Not Required
Voltage - Load 2.7V ~ 5.5V
Switch Type General Purpose
Supplier Device Package U-DFN2020-6 (Type C)
Series -
Rds On (Typ) 80mOhm
Ratio - Input:Output 1:1
Package / Case 6-UDFN Exposed Pad
Package Tape & Reel (TR)
Output Type P-Channel
Product Attribute Attribute Value
Output Configuration High Side
Operating Temperature -40°C ~ 125°C (TJ)
Number of Outputs 1
Mounting Type Surface Mount
Interface On/Off
Input Type Non-Inverting
Features Load Discharge, Status Flag
Fault Protection Current Limiting (Adjustable), Over Temperature, Reverse Current, UVLO
Current - Output (Max) 2.1A
Base Product Number AP2552

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

AP2552AFDC-7 Image
AP2552AFDC-7 (1)

Manufacturer Part Number

AP2552AFDC-7

Manufacturer

diodes

Introduction

The AP2552AFDC-7 is a high-side power distribution switch IC that provides efficient power management and protection for a wide range of applications. It features an adjustable current limit, over-temperature protection, and reverse current protection, making it a reliable and versatile solution for power distribution and load control.

Product Features and Performance

1:1 input to output ratio

High-side switch configuration

P-channel MOSFET output

7V to 5.5V operating voltage range

Up to 2.1A maximum output current

80mΩ typical on-resistance

Adjustable current limit protection

Over-temperature protection

Reverse current protection

Load discharge feature

Status flag output

Product Advantages

Efficient power management and protection

Adjustable current limit for application-specific requirements

Robust protection features to ensure reliable operation

Compact and space-saving U-DFN2020-6 package

Key Reasons to Choose This Product

Reliable and versatile power distribution solution

Comprehensive protection features for safe and robust operation

Efficient performance and low on-resistance

Ease of integration and space-saving package

Quality and Safety Features

Compliant with industry standards for safety and reliability

Rigorous quality control and testing processes

Robust protection features to ensure safe and reliable operation

Compatibility

The AP2552AFDC-7 is compatible with a wide range of electronic systems and devices that require efficient power distribution and load control.

Application Areas

Portable electronics

Industrial automation

Automotive electronics

Telecommunication equipment

General power distribution and load control applications

Product Lifecycle

The AP2552AFDC-7 is currently an active product. There are no equivalent or alternative models available at this time. For the latest information or to inquire about availability, please contact our sales team through our website.

Frequently Asked Questions(FAQ)

What are the key electrical characteristics of the AP2552AFDC-7 that influence its use in battery-powered applications, and how do they compare to similar P-channel load switches in terms of efficiency?
The AP2552AFDC-7 features a low Rds(on) of 80mΩ at typ., which translates to minimal conduction losses when switching up to 2.1A continuous current. This results in power dissipation around 3.78W under full load at 5.5V Vload, significantly lower than many discrete solutions or alternative ICs with higher Rds(on). In battery-powered systems where thermal efficiency and voltage headroom are critical, this characteristic enables longer runtime and reduced heat generation compared to switches with higher on-resistance. When evaluated against competing devices like the AP2112K or similar PMICs, the AP2552AFDC-7 offers competitive performance without requiring external gate drivers, simplifying design complexity.
How should one properly configure the status flag and fault detection features of the AP2552AFDC-7 during system integration, especially when interfacing with a microcontroller?
The AP2552AFDC-7 includes a dedicated open-drain STATUS pin that signals operational states such as undervoltage lockout (UVLO), over-temperature condition, or reverse current flow. This pin should be pulled up via an appropriate resistor (e.g., 10kΩ to Vcc) and monitored by a GPIO input on the microcontroller. During startup, the STATUS signal remains low until internal thresholds are met, allowing firmware to delay enabling downstream loads until conditions stabilize. For robust fault handling, designers must ensure the STATUS line is not shared across multiple power domains unless level-shifting logic is implemented, since it reflects only the local device state. Proper interpretation of this signal prevents false positives from transient events and supports predictive maintenance in end systems.
Can the AP2552AFDC-7 safely operate near its maximum junction temperature under continuous 2A load, and what layout considerations mitigate thermal risks?
Operating continuously at 2A with Vload = 5.5V yields a conduction loss of approximately 3.2W (I²R = 4 × 0.08). Given the small U-DFN2020-6 package, thermal resistance from junction to ambient (θJA) may exceed 100°C/W without proper PCB copper pour. At 2A steady-state, junction temperature could approach 120–130°C depending on airflow and ground plane utilization—potentially nearing the 125°C limit. Therefore, adequate thermal vias under the exposed pad and sufficient copper area are essential. Compared to larger packages like TO-252, the AP2552AFDC-7 requires more careful thermal management for sustained high-current operation, though brief transients above 2A are tolerable due to internal thermal shutdown protection.
How does the adjustable current limit feature of the AP2552AFDC-7 function, and what resistor value would set a 3A trip point considering standard tolerance impacts?
The AP2552AFDC-7 allows adjustment of its overcurrent threshold via an external resistor connected between the ILIM pin and GND. The relationship follows I_LIMIT = 1.2V / R_ILIM. To achieve a 3A limit, R_ILIM should be 400mΩ. However, due to typical resistor tolerances (±1% or ±5%), actual trip points may vary by ±10–15%. For example, a 5% tolerance 400mΩ resistor might result in a limit between 2.86A and 3.16A. Designers often choose tighter-tolerance resistors (e.g., 1%) or add margin by selecting slightly lower nominal values. This flexibility supports protection tuning for different inductive loads but demands careful calibration if precise current regulation is required.
In what scenarios would using the AP2552AFDC-7 in high-side configuration offer advantages over low-side switching with comparable current ratings?
The AP2552AFDC-7’s high-side P-channel topology eliminates the need for a negative supply rail, simplifying power architecture in single-battery systems. Unlike low-side switches, it protects downstream circuitry from reverse polarity without additional diodes or MOSFETs. This reduces component count and leakage current. However, driving the gate requires pulling it below ground potential—achieved internally via a charge pump—which limits switching speed slightly compared to N-channel alternatives. For space-constrained designs with strict EMI requirements, the integrated nature of the AP2552AFDC-7 outweighs these minor drawbacks, especially in portable electronics where board real estate and reliability are prioritized.
What precautions should be taken when paralleling multiple AP2552AFDC-7 units to increase output current capacity?
Paralleling AP2552AFDC-7 devices is generally discouraged due to mismatch in Rds(on), threshold voltages, and thermal characteristics, leading to uneven current sharing. Even small differences can cause one device to conduct significantly more current, exceeding its safe operating area while others remain underutilized. If parallel operation is unavoidable, external ballast resistors or active current-balancing circuits must be implemented, adding complexity and reducing efficiency. Instead, designers should select higher-current-rated alternatives or reevaluate load distribution across independent rails. The AP2552AFDC-7 lacks built-in current-sharing mechanisms, making it unsuitable for direct paralleling without significant redesign effort.
How does the load discharge feature of the AP2552AFDC-7 affect system shutdown behavior in capacitive-heavy applications?
The internal load discharge transistor actively pulls down the output voltage toward ground when the switch turns off, mitigating residual charge buildup in large capacitors. This prevents slow discharge times that could lead to unexpected wake-up events or voltage overshoots. In systems with >100µF bulk capacitance, this feature ensures clean shutdown within milliseconds, improving user experience and meeting safety standards like EN 62368-1. Without this function, passive leakage paths might take seconds to drain energy, posing risks during maintenance or disassembly. The discharge current is limited to ~2.1A peak, so very large filter caps (>470µF) may still require supplemental bleed resistors for rapid de-energization.
Why might the AP2552AFDC-7 be preferred over optocoupler-based isolation solutions in non-isolated power stages, despite lacking galvanic separation?
Although the AP2552AFDC-7 provides no galvanic isolation, it excels in cost-sensitive, compact designs where signal integrity and response time matter more than safety margins. Its nanosecond-scale turn-on/off delays and absence of CTR degradation simplify control loop design compared to optocoupled feedback paths. Additionally, it consumes far less PCB space and power, making it ideal for consumer electronics where regulatory isolation isn’t mandated. For applications requiring true isolation—such as industrial interfaces—alternative solutions like digital isolators or isolated DC-DCs remain necessary. The AP2552AFDC-7 thus occupies a niche where simplicity, speed, and integration outweigh isolation needs.
What impact does moisture sensitivity level (MSL) 1 have on storage and handling of AP2552AFDC-7 components in mass production environments?
With MSL 1 classification, the AP2552AFDC-7 can withstand unlimited exposure to ambient humidity before reflow soldering, provided it remains within the specified floor life window (typically 1 year unopened). This simplifies inventory management in high-volume manufacturing, reducing the risk of popcorning during reflow due to absorbed moisture. However, once opened, best practices recommend completing assembly within 168 hours (per JEDEC J-STD-033) if stored below 30°C/60% RH; otherwise, baking may be required. For most automated SMT lines, this constraint rarely becomes binding, giving manufacturers flexibility in scheduling while maintaining reliability.
How does the operating voltage range (2.7V to 5.5V) of the AP2552AFDC-7 constrain its application in ultra-low-voltage embedded systems below 2.7V?
Systems powered by Li-ion batteries at 2.5V or supercapacitor banks below 2.7V cannot utilize the AP2552AFDC-7 directly, as the device won’t activate reliably near cutoff. While some P-channels with wider ranges exist, the AP2552AFDC-7 is optimized for mainstream 3.3V and 5V rails common in microcontrollers, sensors, and IoT nodes. Attempting operation below 2.7V risks incomplete turn-on, elevated Rds(on), and degraded protection functionality. Designers targeting sub-2.7V domains must instead consider specialized low-dropout switches like those supporting 1.8V or even 1.2V operation, trading off efficiency or feature set.
What role does UVLO play in preventing unintended activation of the AP2552AFDC-7, and how is it calibrated in end equipment testing?
Undervoltage lockout (UVLO) ensures the AP2552AFDC-7 remains off until Vload rises above ~2.4V (typical), preventing erratic behavior from brownout conditions. This prevents damage from insufficient gate drive voltage, which could cause partial conduction and excessive heating. During factory test, equipment should simulate worst-case battery sag scenarios—for instance, discharging a 3.7V LiPo to 2.5V—and verify that the STATUS pin stays asserted low and the output remains disabled. Calibration involves measuring the exact Vload at which conduction begins and confirming compliance within ±0.1V of datasheet specifications, ensuring consistent fail-safe operation across production batches.
When comparing the AP2552AFDC-7 to similar Diodes Incorporated products like the AP2532, what key differences emerge in terms of current rating and fault response?
The AP2532 offers a higher continuous current of 3A versus the AP2552AFDC-7’s 2.1A, making it suitable for more demanding loads. Both share identical packaging and core features, including adjustable current limiting and status flags. However, the AP2552AFDC-7 includes a reverse current protection feature absent in the AP2532, which blocks current flow from output to input—a critical safeguard in hot-plug scenarios. Conversely, the AP2532 lacks this blocking capability, increasing risk of backfeeding in multi-source systems. Selection hinges on whether bidirectional protection is needed: choose the AP2552AFDC-7 for robustness in dynamic environments, or the AP2532 for simpler, higher-current loads without backflow concerns.

Parts with Similar Specifications

The three parts on the right have similar specifications to Diodes Incorporated AP2552AFDC-7

Product Attribute AP2553AFDC-7 AP2552FDC-7 AP2553FDC-7 AP2553FDC-7R
Part Number AP2553AFDC-7 AP2552FDC-7 AP2553FDC-7 AP2553FDC-7R
Manufacturer Diodes Incorporated Diodes Incorporated Diodes Incorporated Diodes Incorporated
Features - - - Simultaneous Sampling
Input Type - - - Differential
Voltage - Load - - - -
Output Configuration - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Switch Type - - - -
Rds On (Typ) - - - -
Number of Outputs - - - -
Fault Protection - - - -
Current - Output (Max) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Mounting Type - Surface Mount Through Hole Surface Mount
Output Type - Current - Unbuffered Voltage - Buffered -
Series - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Ratio - Input:Output - - - -
Interface - - - -
Voltage - Supply (Vcc/Vdd) - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

AP2552AFDC-7 Datasheet PDF

Download AP2552AFDC-7 pdf datasheets and Diodes Incorporated documentation for AP2552AFDC-7 - Diodes Incorporated.

Datasheets
AP2552(A), AP2553(A).pdf
Environmental Information
Diodes Environmental Compliance Cert.pdf

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Customer Reviews

Evaluation: 10 Articles

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    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • Nord***mbedded
    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

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AP2552AFDC-7 Image

AP2552AFDC-7

Diodes Incorporated
32D-AP2552AFDC-7

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