Diodes Incorporated

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Back to Linear and Low Dropout (LDO) Regulators


High current, Wide Vin, 800 mA LDO

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The AZ1117C is a low dropout three-terminal regulator.

The AZ1117C has been optimized for low voltage where transient response and minimum input voltage are critical. It provides current limit and thermal shutdown. Its circuit includes a trimmed bandgap reference to assure output voltage accuracy to be within ±1%. On-chip thermal shutdown provides protection against a combination of high current and ambient temperature that would create excessive junction temperature.

The AZ1117C is available in 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V fixed output voltage versions and ADJ output voltage version. 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 AZ1117C is available in the industry-standard TO2522 (3), TO2522 (4), and TO2522 (5), SOT89-3L and SOT223 power packages.



  • Current Limit: 1.35A (Typ) 
  • Output Noise from 10Hz to 10KHz: 0.003% of VOUT
  • PSRR at IOUT = 300mA and f = 120Hz: 70dB 
  • Output Voltage Accuracy: ±1% (Except 1.2V version) 
  • On-chip Thermal Shutdown 
  • Maximum Quiescent Current: IQMAX = 6mA 
  • Compatible with Low ESR Ceramic Capacitor 
  • Operation Junction Temperature: -20°C to +125°C 
  • Totally Lead-Free & Fully RoHS Compliant  
  • Halogen and Antimony Free. “Green” Device 


  • USB Device 
  • Add-On Card 
  • DVD Player 
  • PC Motherboard 

Product Specifications

Product Parameters

Iq (max) (µA) 6000
Iq (typ) (µA) 4000
AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Type LDO
Output options Adjustable & Fixed
Iout (A) 0.8
Vin (Max) (V) 15
Vin (Min) (V) 3.2
Vout (min) 1.25
Fixed Vout (V) 1.2, 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 1.4
PSRR (dB) 1kHz 70
Operating Temperature (Ambient) (°C) -20 to 125
Enable Active No
Channels 1
Output Discharge No
Power Good No
Reverse Protection No
VCTL Function No

Technical Documents

Recommended Soldering Techniques


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-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
PCN-2331 2018-03-22 2018-06-22 Additional Qualified BOM (Bill of Materials) on Selected Devices