Diodes Incorporated

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5A Low Dropout Linear Regulator

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The AZ1084C is a series of low-dropout positive-voltage regulators with a maximum dropout of 1.5V at 5A of load current.

The series features on-chip thermal limiting, which provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. It also includes a trimmed bandgap reference and a current-limiting circuit.

The AZ1084C is available in 1.5V, 1.8V, 2.5V, 3.3V and 5.0V versions. The fixed versions integrate the adjust resistors. It is also available in an adjustable version which can set the output voltage with two external resistors.

The AZ1084C series is available in the standard packages of TO252- 2 (3), TO252-2 (4), TO252-2 (5) and TO252 (Type CJ).  


  • Low Dropout Voltage: 1.35V typical at 5A
  • Current Limiting and Thermal Protection
  • Output Current: 5A
  • Current Limit: 6.5A
  • Operating Junction Temperature Range: 0°C to +125°C
  • Compatible with Low ESR Ceramic Capacitor
  • Line Regulation (Adj Version): 0.015% (typ)
  • Load Regulation (Adj Version): 0.1% (typ)
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


  • High-efficiency linear regulators
  • Battery chargers
  • Post-regulation for switching supplies
  • Microprocessor supplies
  • Desktop PCs, RISC and embedded processors' supplies

Product Specifications

Product Parameters

Iq (max) (µA) 10000
Iq (typ) (µA) 5000
AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Type LDO
Output options Adjustable & Fixed
Iout (A) 5
Vin (Max) (V) 12
Vin (Min) (V) 1.5
Vout (min) 1.25
Fixed Vout (V) 1.5, 1.8, 2.5, 3.3, 5.0
Adjustable VFB (V) 1.25
Accuracy 25C 1
Noise uV RMS 10-100 kHz 150
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 1.5
PSRR (dB) 1kHz 72
Operating Temperature (Ambient) (°C) -40 to 85
Enable Active No
Channels 1
Output Discharge No
Power Good No
Reverse Protection No
VCTL Function No

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Technical Documents

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2594 2022-08-31 2023-02-28 Device End of Life (EOL)
PCN-2568 2022-03-29 2022-03-29 Qualified Additional Assembly & Test (A/T) Sites, Bill of Material, and updated Data Sheets for Package Outline Dimension Change
PCN-2514 2021-03-09 2021-06-09 Additional Wafer Source JKFAB