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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

Diodes Incorporated PI5PD2561ZEEX

Name: PI5PD2561ZEEX
Brand: Diodes Incorporated
SKU: PI5PD2561ZEEX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI5PD2561ZEEX

Manufacturer:: Diodes Incorporated

Category:: Power Distribution Switches, Load Drivers

Package:: 10-VFDFN Exposed Pad

Datasheet:: PI5PD2561ZEEX.pdf

Description:: IC PWR SWITCH N/P-CH 1:2 10TDFN

Quantity:: RFQ Add To RFQ list

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Inventory:3,631

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Product details

Overview

PI5PD2561ZEEX from Diodes Incorporated is a dual-channel, adjustable current-limited high-side power switch using N-channel MOSFETs, designed for USB-compliant port protection and hot-swap applications. It delivers ±7.5% current-limit accuracy at 2.8 A, features 44 mΩ R_DS(on), operates from 2.5 V to 5.5 V, and provides independent /FAULT1 and /FAULT2 open-drain fault indicators. Used in USB hubs and set-top boxes to prevent damage from short circuits and heavy capacitive loads.

For engineers reviewing the PI5PD2561ZEEX datasheet, PI5PD2561ZEEX pinout, PI5PD2561ZEEX application, or PI5PD2561ZEEX equivalent, key selection criteria include programmable current limit (250 mA–2.8 A per channel), 3.5 µs over-current response time, reverse input-output voltage protection, built-in soft-start, and thermal shutdown with hysteresis - all critical for robust power distribution in consumer and embedded systems.

Technical Context

The PI5PD2561ZEEX integrates two independent N-channel high-side switches with internal charge-pump gate drivers enabling full enhancement down to 2.5 V input. Each channel implements constant-current limiting via external R_ILIM (20 kΩ–187 kΩ), with real-time current regulation during overload and automatic thermal cycling at 135°C (channel-level) and 155°C (die-level).

Its /FAULTx outputs feature 9 ms deglitching for over-current events but bypass deglitch on thermal faults to ensure immediate system-level response. UVLO (2.35 V turn-on, 35 mV hysteresis) and <2 µA standby supply current support low-power always-on designs in VOIP phones and digital TV front-ends.

Key Specifications

Parameter	Value and Actual Design Meaning
Current Limit Range	250 mA to 2.8 A per channel, set by external R_ILIM; enables precise compliance with USB 2.0/3.0 port current budgets.
R_DS(on)	44 mΩ (typ) at V_IN = 5 V; minimizes conduction loss and self-heating under 2.5 A continuous load.
Over-Current Response	3.5 µs (typ); fast enough to protect downstream circuitry before energy dissipation exceeds safe limits.
Supply Voltage Range	2.5 V to 5.5 V; supports single-supply operation across USB 5 V, 3.3 V logic rails, and battery-backed systems.
Standby Supply Current	≤2 µA; allows integration into always-on subsystems without compromising system-level power budget.
ESD Rating	15 kV contact / 8 kV air (system-level); meets IEC 61000-4-2 requirements for end-equipment reliability.
Thermal Shutdown	135°C (channel) / 155°C (die), with 20°C hysteresis; prevents latch-up and enables auto-recovery after fault removal.

Pinout & Package

TDFN 3×3 mm, 10-lead package with exposed thermal pad (Power Pad) for enhanced heat dissipation. Pin 1 marked by top-side dot; pins numbered counterclockwise from top-left corner in top view.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground reference	Common return path for power, control, and fault signals; must be low-impedance connection to PCB ground plane.
2,3 IN	Power input	Dual-input configuration allows shared input rail for both channels; accepts 2.5–5.5 V with UVLO protection.
4 /EN1	Channel 1 enable (active-low)	Logic-compatible TTL/CMOS input; pulls high internally when unused; enables independent channel sequencing.
5 /EN2	Channel 2 enable (active-low)	Independent control of second channel; supports staggered power-up or fault-isolation strategies.
6 /FAULT2	Channel 2 fault indicator	Open-drain output asserted low during over-current or over-temperature; requires external pull-up for system monitoring.
7 ILIM	Current-limit programming node	Internal regulated voltage source; connects to external resistor to set precise current threshold per channel.
8 OUT2	Channel 2 power output	High-side switched output; drives load with controlled rise/fall times to suppress inrush current.
9 OUT1	Channel 1 power output	Independent high-side output; supports separate load domains with individual current limiting and fault reporting.
10 /FAULT1	Channel 1 fault indicator	Active-low open-drain signal synchronized to Channel 1 events only; enables per-channel diagnostics.

Key Features

Feature	Design Value
Adjustable current limit	Programmable 250 mA–2.8 A per channel via single external resistor (R_ILIM), eliminating need for multiple fixed-limit ICs.
Fast short-circuit protection	3.5 µs response time ensures MOSFET enters constant-current mode before peak fault energy exceeds safe SOA limits.
Built-in soft-start	Controlled output rise/fall times minimize inrush current into large capacitive loads (e.g., USB device enumeration).
Reverse input-output protection	Prevents backfeed from powered outputs to unpowered inputs - critical in multi-rail systems with shared grounds.
Dual thermal shutdown	Independent 135°C channel-level and 155°C die-level cutoff with 20°C hysteresis enables reliable auto-recovery without external supervision.

Applications

USB Hub Power Management

Digital TV Backlight Control

Use Scenario: Managing power delivery to four downstream USB 2.0 ports with independent over-current protection.

IC Role / Device Role / Timing Role: Dual high-side switch providing per-port current limiting and fault isolation; replaces discrete FET + sense + comparator solutions.

Use Value: Enables USB-IF compliance with ±7.5% current accuracy and eliminates need for external current-sense resistors or op-amps.

Use Scenario: Driving LED backlight strings in LCD panels where inrush current must be limited during power-on.

IC Role / Device Role / Timing Role: High-side current-regulated switch controlling backlight enable timing and surge suppression.

Use Value: Soft-start and 44 mΩ R_DS(on) reduce voltage droop and thermal stress during cold-start of high-capacitance LED driver inputs.

Set-Top Box Peripheral Ports

VOIP Phone USB Charging Circuit

Use Scenario: Isolating HDMI CEC, USB OTG, and SD card slots from main 5 V rail with independent fault reporting.

IC Role / Device Role / Timing Role: Dual-channel power distributor with independent /FAULT1 and /FAULT2 outputs for microcontroller-based diagnostics.

Use Value: 9 ms deglitched fault outputs prevent false triggers during hot-plug events while ensuring rapid response to sustained shorts.

Use Scenario: Providing USB BC1.2-compliant charging ports with programmable current limits for legacy devices.

IC Role / Device Role / Timing Role: Adjustable current-limited switch supporting 500 mA (USB 2.0) and 1.5 A (charging) profiles via R_ILIM.

Use Value: Single-resistor programming simplifies BOM and layout versus dual-fixed-limit alternatives; supports field-upgradable current profiles.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel current-limited power switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS2051BDR	Fixed 1 A current limit per channel; no R_ILIM adjustment; 70 mΩ R_DS(on); no reverse voltage protection.	Limited to fixed-current USB peripheral ports; unsuitable for variable-load or high-accuracy applications.	Select when cost sensitivity outweighs programmability and when 1 A fixed limit suffices.
AP22653WM6-7	Adjustable 100 mA–2.5 A range; 55 mΩ R_DS(on); 10 µs response time; no integrated deglitch or dual thermal thresholds.	Requires external RC network for fault debouncing; less robust under transient overload conditions.	Choose for space-constrained designs needing similar adjustability but accepting slower fault response and simpler thermal behavior.

Compared with TPS2051BDR and AP22653WM6-7, the PI5PD2561ZEEX offers superior current accuracy (±7.5%), faster fault response (3.5 µs), integrated deglitching, and dual thermal thresholds - making it optimal for USB-compliant, high-reliability consumer electronics requiring field-programmable current limits.

Availability

PI5PD2561ZEEX is available at Aetrix Electronics and suitable for USB hubs, digital TV power management, and VOIP phone peripheral interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for PI5PD2561ZEEX 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 ICs for power management, signal integrity, and connectivity applications.

The PI5PD2561ZEEX belongs to Diodes' PI5PD family of precision current-limited power switches, engineered specifically for USB-compliant hot-swap and port protection in consumer electronics with stringent safety and reliability requirements.

FAQ

What is the minimum recommended R_ILIM value and why?

The minimum recommended R_ILIM is 20 kΩ, as specified in the datasheet to ensure stability of the internal regulation loop. Using a lower resistance risks oscillation in the current-limit control circuit, degrading accuracy and potentially causing erratic fault behavior. This value also corresponds to the maximum current limit of ~2.8 A (typ), aligning with USB 3.0 high-power port requirements.

How does the /FAULTx deglitching work during startup into capacitive loads?

The /FAULTx outputs incorporate a 9 ms (typ) deglitch timer for over-current events only - this delays assertion until the overload persists beyond normal inrush duration. During cold-start into large output capacitance, the device's built-in soft-start controls slew rate, preventing false trips. Thermal faults bypass deglitching to ensure immediate system alert.

Can PI5PD2561ZEEX operate reliably at 2.5 V input?

Yes - the device is fully specified from 2.5 V to 5.5 V. At 2.5 V, the charge pump maintains sufficient gate drive for the N-channel MOSFETs, delivering 44 mΩ R_DS(on) and maintaining 3.5 µs over-current response. UVLO activates below 2.35 V, ensuring clean disablement during brown-out conditions.

Is reverse voltage protection active when the switch is disabled?

Yes - reverse input-output voltage protection remains functional regardless of ENx state. When VIN = 0 V and VOUTx = 5.5 V, reverse leakage is limited to ≤1 µA (typ), preventing backfeed into upstream supplies. This feature is inherent to the internal MOSFET structure and requires no external components.

PI5PD2561ZEEX Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Package/Case:: 10-VFDFN Exposed Pad

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Switch Type:: USB Switch

Number of Outputs:: 2

Ratio - Input:Output:: 1:2

Output Configuration:: High Side

Output Type:: N/P-Channel

Interface:: On/Off

Voltage - Load:: 2.5V ~ 5.5V

Voltage - Supply (Vcc/Vdd):: 2.5V ~ 5.5V

Current - Output (Max):: 2.5A

Rds On (Typ):: 44mOhm

Input Type:: Non-Inverting

Features:: Status Flag

Fault Protection:: Current Limiting (Adjustable), Over Temperature, UVLO

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-TDFN (3x3)

PI5PD2561ZEEX FAQ

1.How can I place an order for PI5PD2561ZEEX through Aetrix?

Please submit a Request for Quotation (RFQ) for PI5PD2561ZEEX 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 PI5PD2561ZEEX reliable?

The price and inventory of PI5PD2561ZEEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5PD2561ZEEX is usually 5 days.

3.What payment methods are accepted for PI5PD2561ZEEX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5PD2561ZEEX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI5PD2561ZEEX?

PI5PD2561ZEEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI5PD2561ZEEX 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 PI5PD2561ZEEX?

For technical support, including PI5PD2561ZEEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5PD2561ZEEX requirements.

6.How does Aetrix verify that PI5PD2561ZEEX is sourced from the original manufacturer or authorized distributors?

All PI5PD2561ZEEX 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 PI5PD2561ZEEX meets industry standards.

7.What is the process for return or replacement of PI5PD2561ZEEX?

All PI5PD2561ZEEX units undergo pre-shipment inspection (PSI). If there is an issue with PI5PD2561ZEEX, 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 PI5PD2561ZEEX part is unused and in its original packaging.

Return procedure for PI5PD2561ZEEX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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