EZ1084CT-2.5T - 2.5V 5A Positive LDO | Semtech
MPN: EZ1084CT-2.5T ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
EZ1084CT-2.5T Overview
A low-dropout regulator, or LDO, is a linear voltage regulator that passes most of its input voltage through as output voltage while regulating the output to a specified level. Unlike a switching DC-DC converter, an LDO does not intentionally create high-frequency switching energy, making it useful when a relatively quiet power rail is more important than conversion efficiency. In system power hierarchy terms, the EZ1084CT-2.5T is a linear regulator, voltage regulator, power-management IC, and semiconductor.
The fixed 2.5 V output is intended for systems requiring a stable positive rail. Its 5 A current capability makes it relevant to higher-current logic, communications, industrial-control, and embedded power trees when the available input voltage remains above the regulator's dropout requirement. The provided verified listings identify the part as a positive, fixed-output, low-dropout regulator and describe the EZ1084 family as providing excellent regulation over line, load, and temperature variations.
The EZ1084 family is designed for applications requiring low-dropout performance at up to 5 A. The controller uses a linear-regulation topology rather than a switching topology, so designers should account for the difference between input and output voltage when estimating heat dissipation. At a nominal 5 V input, 2.5 V output, and 5 A load, the estimated regulator dissipation from the voltage drop alone is 6.25 W before considering other losses; this is an engineering estimate and not a manufacturer specification. A suitable copper area, thermal interface, and airflow may therefore be required.
Typical application areas include low-dropout 2.5 V rails for embedded systems, industrial controller boards, communications equipment, and compact power-supply modules. The TO-220-3 package supports through-hole assembly and provides a substantial thermal copper tab compared with small surface-mount packages, although the exact tab connection and pin functions should be confirmed against the selected package variant and manufacturer documentation before layout.
Designers should verify maximum input voltage, dropout voltage, quiescent current, thermal resistance, current limit, stability capacitor requirements, and pin assignments from the current Semtech datasheet. Input and output capacitors should be placed close to the regulator pins, with ESR and capacitance selected according to the manufacturer's stability guidance. The verified search results did not provide exact values for every electrical limit, so this page does not infer missing numerical ratings.
This page combines verified manufacturer-series descriptions, distributor identification, package information, application context, thermal guidance, and honest cross-reference limitations for EZ1084CT-2.5T. It is intended to help engineers locate the datasheet, assess the 2.5 V and 5 A rating, compare compatible options, and plan a robust linear-regulator implementation.
Drop-in alternatives for EZ1084CT-2.5T — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EZ1084CT-2.5
✅ Drop-In📋 Reference alternative (not in catalog)
EZ1084CT-2.5V
✅ Drop-In📋 Reference alternative (not in catalog)
EZ1084CT
✅ Drop-In📋 Reference alternative (not in catalog)
EZ1084CT-2.5T Maximum Ratings & Electrical Characteristics
| Regulator Type | Low Dropout |
| Output Polarity | Positive |
| Output Voltage | 2.5 V |
| Output Voltage Type | Fixed |
| Maximum Output Current | 5 A |
| Number of Outputs | 1 |
| Product Category | PMIC - Voltage Regulators - Linear |
| Series | EZ1084 |
| Package | TO-220-3 |
| Package Pin Count | 3 pins |
| Mounting Type | Through-hole |
| RoHS Status | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
| Lead-Free Status | unknown |
EZ1084CT-2.5T 3 pins Pin Configuration Guide
Pin configuration for EZ1084CT-2.5T (3 pins package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for EZ1084CT-2.5T.
Refer to the datasheet for full pin configuration.
Typical Applications
EZ1084CT-2.5T is suitable for 6 applications: Embedded 2.5 V Logic Rail, Industrial Controller Power Tree, Communications Equipment Supply, Low-Dropout 2.5 V Distribution, Compact Power-Supply Module, Test and Measurement Front End.
Embedded 2.5 V Logic Rail
The EZ1084CT-2.5T is a fixed 2.5 V, positive low-dropout regulator rated for up to 5 A, making it a candidate for powering logic rails in embedded control boards when the upstream supply has adequate headroom. Place it after the main supply and use the manufacturer's required input and output capacitors near the device. The linear topology avoids intentional switching ripple, but the thermal design must handle the power lost across the regulator. For example, a 5 V input, 2.5 V output, and 5 A load produces an estimated 6.25 W of voltage-drop dissipation before other losses, so copper area, airflow, and package temperature require verification.
Recommended
Industrial Controller Power Tree
The Semtech EZ1084CT-2.5T can provide a regulated 2.5 V rail for controller analog sections, memory, interface logic, or other medium-current loads in industrial equipment. Its 5 A family rating provides useful design headroom, but the actual load must remain within the regulator's thermal and electrical limits. Use a low-impedance supply path, verify the regulator's maximum input voltage, and provide local bypass capacitance at the input and output. Because an LDO is a linear regulator, system efficiency falls as the input-to-output voltage difference and load current increase; thermal analysis should therefore be performed at the highest expected load rather than at nominal no-load conditions.
Recommended
Communications Equipment Supply
The EZ1084CT-2.5T is suitable as a candidate 2.5 V regulator for communications boards that require a stable positive rail from a higher-voltage supply. A low-dropout linear topology can reduce switching-converter ripple at the regulated rail, which may help sensitive receiver, clock, or logic sections when the upstream converter is already present. The design still needs filtering and stability components selected according to the manufacturer datasheet. At higher current, the package dissipates the voltage difference as heat, so designers should calculate worst-case dissipation, ensure the TO-220-3 thermal tab is correctly coupled to the intended copper area, and verify that the input supply remains within the regulator's permitted range.
Recommended
Low-Dropout 2.5 V Distribution
The Semtech EZ1084CT-2.5T can serve as a local post-regulator where a higher-voltage rail must be reduced to 2.5 V with low dropout performance. This arrangement can simplify the power tree when a downstream switching converter would add switching noise or when the available input headroom is limited. The regulator's output capacitor and ESR requirements must be followed exactly because stability is a key consideration in low-dropout linear designs. Confirm the correct pinout and thermal-tab connection from the package documentation, keep high-current paths short and wide, and avoid placing sensitive return currents through the regulator's ground connection.
Recommended
Compact Power-Supply Module
The EZ1084CT-2.5T can be integrated into a small power module to create a regulated 2.5 V output from a higher-voltage DC source. Its through-hole TO-220-3 format is convenient for assembly and thermal-copper attachment in modules where a compact surface-mount package is not required. The system designer must still account for dropout, maximum input voltage, current limit, and thermal rise at the highest specified output current. Use the manufacturer's recommended capacitor network and layout, and estimate regulator dissipation from the actual voltage drop and load. The resulting module should be tested for line regulation, load regulation, startup behavior, and thermal shutdown margin.
Recommended
Test and Measurement Front End
The fixed 2.5 V output and low-dropout architecture make EZ1084CT-2.5T a potential local supply for measurement, control, or signal-conditioning boards that need a repeatable positive rail. The absence of intentional switching in the regulator can be beneficial when the power rail feeds sensitive analog circuitry, although upstream converter ripple can still pass unless filtered. Keep the analog and digital return-current paths controlled, place bypass capacitors at the load and regulator pins, and verify ripple and noise experimentally rather than assuming a low-dropout topology eliminates all noise. At sustained high current, calculate the regulator's heat dissipation and confirm that the TO-220-3 tab has adequate copper area and thermal coupling.
Recommended
Recommended Products Summary
Engineering reference data for EZ1084CT-2.5T — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EZ1084CT-2.5 | EZ1084CT-2.5V | EZ1084CT |
|---|---|---|---|---|
| Regulator Type | Low Dropout | Low Dropout | Low Dropout | Low Dropout |
| Output Polarity | Positive | Positive | Positive | Positive |
| Maximum Output Current | 5 A | 5 A family rating | 5 A family rating | 5 A family rating |
| Output Quantity | 1 | 1 | 1 | 1 |
| Package | TO-220-3 | TO-220-3 | TO-220-3 | TO-220-3 family package |
| Product Category | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear |
Key Differentiators
- Fixed 2.5 V output (vs EZ1084CT-3.3T)
- TO-220-3 through-hole package (vs EZ1084CM-2.5TRT)
- Up to 5 A low-dropout family rating (vs EZ1084CT)
Design Notes
Estimated: using VIN = 5 V, VOUT = 2.5 V, and IOUT = 5 A, the voltage-drop dissipation is approximately (5 V - 2.5 V) x 5 A = 6.25 W before accounting for other losses. Check the manufacturer thermal resistance and junction-temperature limits, then provide a copper area or heatsinking path sized for the worst-case load and ambient temperature.
Keep the input voltage above the regulator's dropout requirement at the highest expected load and verify the maximum input rating from the Semtech datasheet. Place the input capacitor close to the input pin and the output capacitor close to the output pin; use the capacitance and ESR specified by the manufacturer because incorrect compensation can cause instability.
Use short, wide copper paths for input and output current, maintain a low-impedance ground return, and attach the TO-220-3 thermal tab to the intended copper area. Confirm whether the tab is electrically isolated or connected to a regulator terminal for the exact ordering variant; do not infer this connection from the package name alone.
Do not substitute a TO-263-4 or other smaller package solely because it is also labeled EZ1084 or has the same nominal voltage. The verified comparison data identifies EZ1084CM-2.5TRT as TO-263-4, while the target is identified as TO-220-3. Confirm package, pinout, tab connection, dropout, thermal performance, and capacitor requirements before treating any part as a drop-in replacement.
An LDO can reduce switching noise reaching a downstream rail, but it does not eliminate ripple from the upstream converter or noise coupled through shared supply and ground paths. Keep sensitive return currents away from high-current regulator paths, add local bypass capacitance at the load, and measure output ripple and transient response with the actual source impedance and load conditions.
Compliance Information
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not_applicable only because this is a general-purpose linear regulator and no automotive qualification was identified; no compliance assumption is made.
