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EZ1084CM-3.3

5A LDO, 3.3V fixed, 1.3V dropout, SOT-223, +/-1% accuracy

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Manufacturer Part：

EZ1084CM-3.3

Package：

SOT-223-4 (6.7 x 3.7 x 1.7 mm)

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Description

Product Overview

The EZ1084CM-3.3 from Semtech is a 5A low-dropout voltage regulator providing fixed 3.3V output in a SOT-223 package. With 1.3V maximum dropout at 5A load, it is a high-current LDO suitable for 5V to 3.3V conversion in digital systems.

Key Specifications

Output Voltage 3.3V fixed (+/-1%)
Output Current 5A
Dropout Voltage 1.3V max @ 5A
Input Voltage Max 15V
Line Regulation 0.2% max
Load Regulation 0.4% max
Package SOT-223-3
Operating Temperature 0°C to +125°C

Features

  • 5A output current capability
  • Fixed 3.3V with +/-1% accuracy
  • 1.3V dropout at full 5A load
  • On-chip thermal limiting and current limiting
  • SOT-223 surface-mount package
  • Pin-compatible with 1084-series LDOs

Applications

  • 5V to 3.3V high-current conversion
  • Post-regulation after switching converters
  • Server and networking board power
  • FPGA and CPU I/O voltage regulation
  • Battery charger output regulation

The EZ1084CM-3.3 from Semtech is a 5A low-dropout voltage regulator providing a fixed 3.3V output with +/-1% accuracy. With a maximum dropout of 1.3V at full 5A load, it can regulate 3.3V from a 5V supply while delivering high output current. The on-chip thermal shutdown and current limiting protect the device under overload conditions. Pin-compatible with the industry-standard 1084 LDO family, it can replace LM1084-3.3 and LT1084-3.3 in most applications.

The EZ1084CM-3.3 uses an NPN pass transistor in an emitter-follower configuration with a PNP driver stage to achieve low dropout. An error amplifier compares a divided-down output voltage with an internal bandgap reference trimmed to +/-0.5% accuracy. When the input-output differential falls below dropout, the pass transistor saturates and the output tracks the input minus the dropout. Thermal shutdown disables the output when junction temperature exceeds approximately 150°C.

Pin Name Type Function
1 GND/ADJ Ground Ground (fixed version)
2 VOUT Output Regulated 3.3V output
3 VIN Input Input voltage (up to 15V)
4 VOUT (Tab) Output Output / Heatsink tab
  • 5V to 3.3V high-current regulation in servers
  • Post-regulation after 5V switching converters
  • FPGA and CPU I/O voltage supply rail
  • Networking board 3.3V power distribution
  • Battery charger output voltage regulation
Manufacturer Part Number Package Notes
TI LM1084ISX-3.3/NOPB TO-263 5A, 3.3V, through-hole
onsemi NCP1084ST33T3G SOT-223 5A, 3.3V, pin-compatible
AMS AMS1084CM-3.3 SOT-223 5A, 3.3V, equivalent
TI LM1117MPX-3.3/NOPB SOT-223 800mA, lower current alternative
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In stock:
6959pcs

Cargo cycle: 3~7 Days
The minimum order is 1

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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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