S-85S0A Series Switching Regulator

By ABLIC U.S.A. Inc. 620

S-85S0A Series Switching Regulator

ABLIC's S-85S0A series introduces its own distinctive low power consumption control and COT (constant on-time) control, features ultra-low current consumption (260 nA quiescent current) and fast transient response, and operates at PFM control. The S-85S0A series realizes high efficiency in a wide range of load current consumption and provides strong support for an extended period of operation of mobile devices and wearable devices which are equipped with compact batteries. The S-85S0A series can configure a step-down regulator only with a coil, an input capacitor, and an output capacitor. By using external parts recommended in the product datasheet, the occupancy area can be reduced to 1.6 mm x 4.3 mm = 6.9 mm2, contributing to the miniaturization of electronic equipment.

  • Ultra-low current consumption: 260 nA quiescent current
  • Efficiency (when under 100 μA load): 90.5%
  • Fast transient response: COT control
  • Input voltage: 2.2 V to 5.5 V
  • Output voltage: 0.7 V to 2.5 V, in 0.05 V step; 2.6 V to 3.9 V, in 0.1 V step
  • Output voltage accuracy: ±1.5% (1.0 V ≤ VOUT ≤ 3.9 V); ±15 mV (0.7 V ≤ VOUT < 1.0 V)
  • High side power MOSFET on-resistance: 420 mΩ
  • Low side power MOSFET on-resistance: 320 mΩ
  • Soft-start function: 1 ms typ.
  • Undervoltage lockout function (UVLO): 1.8 V typ. (detection voltage)
  • Thermal shutdown function: 135°C typ. (detection temperature)
  • Overcurrent protection function: 300 mA (at L = 2.2 μH)
  • Automatic recovery type short-circuit protection function: hiccup control
  • Input and output capacitors: ceramic capacitor compatible
  • Operation temperature range: Ta = -40°C to +85°C
  • Lead-free (Sn 100%), halogen-free
  • Wearable devices
  • Bluetooth devices
  • Wireless sensor network devices
  • Healthcare equipment
  • Smart meters
  • Portable game devices


  • SNT-6A (1.80 mm x 1.57 mm x t0.5 mm max.)