• LD1117AS33TR SOT-223
LD1117AS33TR SOT-223


Low drop fixed and adjustable positive voltage regulators


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Overview of LD1117AS33TR

Description: The LD1117AS33TR is a positive fixed voltage regulator from STMicroelectronics. It is a single output regulator with an output voltage of 3.3V and a maximum current output of 1A. It is available in a TO-261-4, TO-261AA package and has a power dissipation of 12W.Features:• Positive fixed voltage regulator• Output voltage of 3.3V• Maximum current output of 1A• Available in a TO-261-4, TO-261AA package• Power dissipation of 12W• Single output regulator• Surface mount mounting typeApplications:The LD1117AS33TR is suitable for a wide range of applications including power supplies, battery chargers, and other power management applications. It is also suitable for use in automotive, industrial, and consumer electronics.


Key Features

  • Positive fixed voltage regulator
  • Output voltage of 3.3V
  • Maximum current output of 1A
  • Available in a TO-261-4, TO-261AA package
  • Power dissipation of 12W
  • Single output regulator
  • Surface mount mounting type


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Source Content uid LD1117AS33TR Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS Part Package Code SOT-223
Package Description SOP, SOT-223 Pin Count 4
Reach Compliance Code not_compliant ECCN Code EAR99
HTS Code 8542.39.00.01 Factory Lead Time 54 Weeks
Samacsys Manufacturer STMicroelectronics Adjustability FIXED
Dropout Voltage1-Max 1.3 V Dropout Voltage1-Nom 1.15 V
Input Voltage Absolute-Max 10 V Input Voltage-Max 10 V
Input Voltage-Min 4.75 V JESD-30 Code R-PDSO-G4
JESD-609 Code e3 Length 6.5 mm
Line Regulation-Max 0.006% Load Regulation-Max 0.01%
Moisture Sensitivity Level 1 Number of Functions 1
Number of Outputs 1 Number of Terminals 4
Operating Temperature TJ-Max 125 °C Operating Temperature TJ-Min
Output Current1-Max 1 A Output Voltage1-Max 3.432 V
Output Voltage1-Min 3.168 V Output Voltage1-Nom 3.3 V
Package Body Material PLASTIC/EPOXY Package Code SOP
Package Equivalence Code SOT-223 Package Shape RECTANGULAR
Package Style SMALL OUTLINE Packing Method TR
Peak Reflow Temperature (Cel) 260 Qualification Status Not Qualified
Surface Mount YES Technology BIPOLAR
Terminal Finish MATTE TIN Terminal Form GULL WING
Terminal Pitch 2.3 mm Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30 Voltage Tolerance-Max 2%
Width 3.5 mm Product Status Active
Output Configuration Positive Output Type Fixed
Number of Regulators 1 Voltage - Input (Max) 15V
Voltage - Output (Min/Fixed) 3.3V Voltage Dropout (Max) 1.3V @ 1A
Current - Output 1A Current - Quiescent (Iq) 10 mA
PSRR 75dB (120Hz) Protection Features Over Current, Over Temperature
Operating Temperature 0°C ~ 125°C Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA Supplier Device Package SOT-223
Base Product Number LD1117

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