1117 Low Dropout Voltage Regulator – TO-252 | Hottech

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The TO-252 (DPAK) Voltage Regulator series from Hottech includes both positive (78MXX), negative (79MXX), and low dropout (1117) linear regulators designed for stable and efficient power supply solutions. These regulators provide fixed output voltages ranging from 5V to 15V, supporting a wide range of industrial and consumer electronics applications.

With an input voltage range of 18V to 35V and output current capability up to 1A, this series ensures reliable voltage regulation for medium-power designs. The TO-252 package offers excellent thermal performance, making it suitable for applications requiring efficient heat dissipation in compact PCB layouts.

The 78MXX series delivers positive voltage outputs, while the 79MXX series provides negative voltage regulation. The 1117 LDO regulator offers low dropout voltage for improved efficiency in low headroom applications.

These devices are widely used in electric tools, adapters, inverters, table lamps, electronic toys, and various power management systems.

✅ Key Features

  • Fixed positive and negative output voltage options
  • Output voltage range: ±5V to ±15V
  • Output current up to 1A
  • Input voltage range: 18V to 35V
  • Low dropout option available (1117)
  • Good line and load regulation
  • Built-in thermal overload and short-circuit protection
  • TO-252 (DPAK) package for excellent heat dissipation
  • High reliability and long operational life

✅ Applications

  • Electric tools
  • Power adapters and supplies
  • Inverters
  • Table lamps
  • Electronic toys
  • Consumer electronics
  • Industrial control systems
  • General voltage regulation and power management