• Part: S-8357
  • Description: PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
  • Manufacturer: Seiko Instruments
  • Size: 1.51 MB
S-8357 Datasheet (PDF) Download
Seiko Instruments
S-8357

Key Features

  • Low voltage operation : Startup at 0.9 V min. (IOUT = 1 mA) guaranteed
  • Low current consumption : During operation 25.9 μA (3.3 V, 100 kHz, typ.)
  • Duty ratio : Built-in PWM/PFM switching control circuit (S-8356/58 Series)
  • External parts : Coil, diode, capacitor, and transistor
  • Output voltage : Selectable in 0.1 V steps between 1.5 and 6.5 V (for VDD / VOUT separate types)
  • Output voltage accuracy : ±2.4%
  • Oscillation frequency : 100 kHz, 250 kHz, 300 kHz, 600 kHz selectable
  • Soft start function : 6 ms (100 kHz, typ.)
  • Shutdown function
  • Lead-free, Sn 100%, halogen-free

Applications

  • Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs