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IC-Hersteller Ablic

Ablic S-85S0A

5.5 V INPUT, 50 mA SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT

Details

TopologieAbwärtswandler
Eingangsspannung2.2-5.5 V
Ausgang 12.5 V

Beschreibung

The S-85S0A Series introduces 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, operates at PFM control. The S-85S0A Series realizes high efficiency in a wide range of load current consumption and provides strong support for extended period 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 this datasheet, the occupancy area can be reduced to 1.6 mm × 4.3 mm = 6.9 mm2, and it contributes to miniaturization of electronic equipment.

Eigenschaften

  • 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 MOS FET on-resistance: 420 mΩ
  • Low side power MOS FET on-resistance: 320 mΩ
  • Soft-start function: 1 ms typ.
  • Under voltage lockout function (UVLO): 1.8 V typ. (detection voltage)
  • Thermal shutdown function135°C typ. (detection temperature)
  • Overcurrent limit 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

Typische Anwendungen

  • Healthcare equipment
  • Smart Meter/ Wireless sensor network device
  • Wearable device/ Bluetooth device/ Portable game device

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster
74438313022SPEC
8 Dateien WE-MAPI SMT-Speicherdrossel 2.2 0.85 2.5 337 388 70 SMT
Artikel Nr. Daten­blatt Simu­lation
74438313022SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster