Diotec Semiconductor LDI1117-3.3H-AQ Low-Dropout Voltage Regulator

Diotec Semiconductor LDI1117-3.3H-AQ Low-Dropout Voltage Regulator operates at a low dropout voltage of 1.2V at 1A output current and a fixed voltage of 3.3V. This regulator features an integrated current limiting, thermal overload protection, and a narrow tolerance band. The LDI1117-3.3H-AQ LDO regulator is housed in a UL 94V-0 case material and weighs around 0.12g. This regulator offers 260°C/10s solder and assembly conditions and a storage temperature range of -65°C to +150°C. The LDI1117-3.3H-AQ LDO regulator complies with RoHS, REACH, and conflict minerals. Typical applications include high-efficiency linear regulators, active SCSI termination regulators, post regulators for switch-mode DC-DC converters, battery-backed-up regulated supplies, and AEC-Q100 qualification.

Features

  • Low Dropout Voltage (LDO):
    • 1.2V at 1A output current
    • 3.3V fixed voltage
  • Integrated current limiting
  • Thermal overload protection
  • Narrow tolerance band
  • 15V input voltage
  • 750mW power dissipation
  • +150°C junction temperature
  • -65°C to +150°C storage temperature range
  • UL 94V-0 case material
  • 0.12g approx weight
  • 260°C/10s solder and assembly conditions
  • RoHS (w/o exemption), REACH, and conflict minerals compliant

Applications

  • High-efficiency linear regulators
  • Active SCSI termination regulator
  • Post regulators for switch-mode DC-DC converters
  • Battery-backed-up regulated supply
  • AEC-Q100 qualification

Typical Application Circuit

Application Circuit Diagram - Diotec Semiconductor LDI1117-3.3H-AQ Low-Dropout Voltage Regulator

Characteristic Curve

Performance Graph - Diotec Semiconductor LDI1117-3.3H-AQ Low-Dropout Voltage Regulator

Dimensions

Mechanical Drawing - Diotec Semiconductor LDI1117-3.3H-AQ Low-Dropout Voltage Regulator
Published: 2026-08-10 | Updated: 2026-08-10