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The SA1117 is a positive low voltage dropout regulator, voltage dropout is only 1.2V at 1A. 

SA1117 has two versions: the fixed version and the adjustable version. VOUT has a tolerance of less than 1% for fixed versions 1.5V, 1.8V, 2.5V, 3.3V, 5.0V and adjustable version or 2% output accuracy for fixed version 1.2V.

The SA1117 integrates overheating protection and current limit circuits. It is an suitable for all electronic products.

Main feature
  • 1% accuracy  for fixed  output VOUT while the voltage is 1.5V, 1.8V, 2.5V, 3.3V, 5.0V and the adjustable output VOUT

  •  2% output accuracy  for fixed version 1.2V

  •  Low Dropout Voltage: 1.2V at 1A output current

  • Current Limiting

  • Thermal Shutdown

  • Temperature Range: -40°C~ 125°C

Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SA1117H-ADJTR SOT-223-3L SA1117H-ADJ 无铅 编带
SA1117H-1.5TR SOT-223-3L SA1117H-1.5 无铅 编带
SA1117H-1.2TR SOT-223-3L SA1117H-1.2 无铅 编带
SA1117H-1.8TR SOT-223-3L SA1117H-1.8 无铅 编带
SA1117H-2.5TR SOT-223-3L SA1117H-2.5 无铅 编带
SA1117H-3.3TR SOT-223-3L SA1117H-3.3 无铅 编带
SA1117H-5.0TR SOT-223-3L SA1117H-5.0 无铅 编带
SA1117R-ADJ TR SOT-89-3L SAJR 无铅 编带
SA1117R-1.2TR SOT-89-3L S12R 无铅 编带
SA1117R-1.5TR SOT-89-3L S15R 无铅 编带
SA1117R-1.8TR SOT-89-3L S18R 无铅 编带
SA1117R-2.5TR SOT-89-3L S25R 无铅 编带
SA1117R-3.3TR SOT-89-3L S33R 无铅 编带
SA1117R-5.0TR SOT-89-3L S50R 无铅 编带
SA1117T-ADJ TO-220-3L SA1117T-ADJ 无铅 料管
SA1117T-1.2 TO-220-3L SA1117T-1.2 无铅 料管
SA1117T-1.5 TO-220-3L SA1117T-1.5 无铅 料管
SA1117T-1.8 TO-220-3L SA1117T-1.8 无铅 料管
SA1117T-2.5 TO-220-3L SA1117T-2.5 无铅 料管
SA1117T-3.3 TO-220-3L SA1117T-3.3 无铅 料管
SA1117T-5.0 TO-220-3L SA1117T-5.0 无铅 料管
SA1117D-ADJ TO-252-2L SA1117D-ADJ 无铅 料管
SA1117D-ADJTR TO-252-2L SA1117D-ADJ 无铅 编带
SA1117D-1.2 TO-252-2L SA1117D-1.2 无铅 料管
SA1117D-1.2TR TO-252-2L SA1117D-1.2 无铅 编带
SA1117D-1.5 TO-252-2L SA1117D-1.5 无铅 料管
SA1117D-1.5TR TO-252-2L SA1117D-1.5 无铅 编带
SA1117D-1.8 TO-252-2L SA1117D-1.8 无铅 料管
SA1117D-1.8TR TO-252-2L SA1117D-1.8 无铅 编带
SA1117D-2.5 TO-252-2L SA1117D-2.5 无铅 料管
SA1117D-2.5TR TO-252-2L SA1117D-2.5 无铅 编带
SA1117D-3.3 TO-252-2L SA1117D-3.3 无铅 料管
SA1117D-3.3TR TO-252-2L SA1117D-3.3 无铅 编带
SA1117D-5.0 TO-252-2L SA1117D-5.0 无铅 料管
SA1117D-5.0TR TO-252-2L SA1117D-5.0 无铅 编带
SA1117S-ADJ TO-263-3L SA1117S-ADJ 无铅 料管
SA1117S-ADJTR TO-263-3L SA1117S-ADJ 无铅 编带
SA1117S-1.2 TO-263-3L SA1117S-1.2 无铅 料管
SA1117S-1.2TR TO-263-3L SA1117S-1.2 无铅 编带
SA1117S-1.5 TO-263-3L SA1117S-1.5 无铅 料管
SA1117S-1.5TR TO-263-3L SA1117S-1.5 无铅 编带
SA1117S-1.8 TO-263-3L SA1117S-1.8 无铅 料管
SA1117S-1.8TR TO-263-3L SA1117S-1.8 无铅 编带
SA1117S-2.5 TO-263-3L SA1117S-2.5 无铅 料管
SA1117S-2.5TR TO-263-3L SA1117S-2.5 无铅 编带
SA1117S-3.3 TO-263-3L SA1117S-3.3 无铅 料管
SA1117S-3.3TR TO-263-3L SA1117S-3.3 无铅 编带
SA1117S-5.0 TO-263-3L SA1117S-5.0 无铅 料管
SA1117S-5.0TR TO-263-3L SA1117S-5.0 无铅 编带
SA1117H-ADJGTR SOT-223-3L 1117H-ADJG 无卤 编带
SA1117H-1.2GTR SOT-223-3L 1117H-1.2G 无卤 编带
SA1117H-1.5GTR SOT-223-3L 1117H-1.5G 无卤 编带
SA1117H-1.8GTR SOT-223-3L 1117H-1.8G 无卤 编带
SA1117H-2.5GTR SOT-223-3L 1117H-2.5G 无卤 编带
SA1117H-3.3GTR SOT-223-3L 1117H-3.3G 无卤 编带
SA1117H-5.0GTR SOT-223-3L 1117H-5.0G 无卤 编带
SA1117R-ADJGTR SOT-89-3L RAJG 无卤 编带
SA1117R-1.2GTR SOT-89-3L R12G 无卤 编带
SA1117R-1.5GTR SOT-89-3L R15G 无卤 编带
SA1117R-1.8GTR SOT-89-3L R18G 无卤 编带
SA1117R-2.5GTR SOT-89-3L R25G 无卤 编带
SA1117R-3.3GTR SOT-89-3L R33G 无卤 编带
SA1117R-5.0GTR SOT-89-3L R50G 无卤 编带
SA1117T-ADJG TO-220-3L 1117T-ADJG 无卤 料管
SA1117T-1.2G TO-220-3L 1117T-1.2G 无卤 料管
SA1117T-1.5G TO-220-3L 1117T-1.5G 无卤 料管
SA1117T-1.5G TO-220-3L 1117T-1.5G 无卤 料管
SA1117T-1.8G TO-220-3L 1117T-1.8G 无卤 料管
SA1117T-2.5G TO-220-3L 1117T-2.5G 无卤 料管
SA1117T-3.3G TO-220-3L 1117T-3.3G 无卤 料管
SA1117T-5.0G TO-220-3L 1117T-5.0G 无卤 料管
SA1117D-ADJG TO-252-2L 1117D-ADJG 无卤 料管
SA1117D-ADJGTR TO-252-2L 1117D-ADJG 无卤 编带
SA1117D-1.2G TO-252-2L 1117D-1.2G 无卤 料管
SA1117D-1.2GTR TO-252-2L 1117D-1.2G 无卤 编带
SA1117D-1.5G TO-252-2L 1117D-1.5G 无卤 料管
SA1117D-1.5GTR TO-252-2L 1117D-1.5G 无卤 编带
SA1117D-1.8G TO-252-2L 1117D-1.8G 无卤 料管
SA1117D-1.8GTR TO-252-2L 1117D-1.8G 无卤 编带
SA1117D-2.5G TO-252-2L 1117D-2.5G 无卤 料管
SA1117D-2.5GTR TO-252-2L 1117D-2.5G 无卤 编带
SA1117D-3.3G TO-252-2L 1117D-3.3G 无卤 料管
SA1117D-3.3GTR TO-252-2L 1117D-3.3G 无卤 编带
SA1117D-5.0G TO-252-2L 1117D-5.0G 无卤 料管
SA1117D-5.0GTR TO-252-2L 1117D-5.0G 无卤 编带
SA1117S-ADJG TO-263-3L 1117S-ADJG 无卤 料管
SA1117S-ADJGTR TO-263-3L 1117S-ADJG 无卤 编带
SA1117S-1.2G TO-263-3L 1117S-1.2G 无卤 料管
SA1117S-1.2GTR TO-263-3L 1117S-1.2G 无卤 编带
SA1117S-1.5G TO-263-3L 1117S-1.5G 无卤 料管
SA1117S-1.5GTR TO-263-3L 1117S-1.5G 无卤 编带
SA1117S-1.8G TO-263-3L 1117S-1.8G 无卤 料管
SA1117S-1.8GTR TO-263-3L 1117S-1.8G 无卤 编带
SA1117S-2.5G TO-263-3L 1117S-2.5G 无卤 料管
SA1117S-2.5GTR TO-263-3L 1117S-2.5G 无卤 编带
SA1117S-3.3G TO-263-3L 1117S-3.3G 无卤 料管
SA1117S-3.3GTR TO-263-3L 1117S-3.3G 无卤 编带
SA1117S-5.0G TO-263-3L 1117S-5.0G 无卤 料管
SA1117S-5.0GTR TO-263-3L 1117S-5.0G 无卤 编带
Block Diagram