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S-85S0AB16-I6T1U Datasheet(PDF) 1 Page - Seiko Instruments Inc |
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S-85S0AB16-I6T1U Datasheet(HTML) 1 Page - Seiko Instruments Inc |
1 / 30 page S-85S0A Series www.sii-ic.com 5.5 V INPUT, 50 mA SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT © SII Semiconductor Corporation, 2017 Rev.1.0_00 1 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 mm 2, and it contributes to miniaturization of electronic equipment. Features Applications • Ultra low current consumption: 260 nA quiescent current • Wearable device • Efficiency (when under 100 μA load): 90.5% • Bluetooth device • Fast transient response: COT control • Wireless sensor network device • Input voltage: 2.2 V to 5.5 V • Healthcare equipment • Output voltage: 0.7 V to 2.5 V, in 0.05 V step • Smart meter 2.6 V to 3.9 V, in 0.1 V step • Portable game device • Output voltage accuracy: ±1.5% (1.0 V ≤ VOUT ≤ 3.9 V) Package • SNT-6A (1.80 mm × 1.57 mm × t0.5 mm max.) ±15 mV (0.7 V ≤ VOUT < 1.0 V) • High side power MOS FET on-resistance: 420 m Ω • Low side power MOS FET on-resistance: 320 m Ω • Soft-start function: 1 ms typ. • Under voltage lockout function (UVLO): 1.8 V typ. (detection voltage) • Thermal shutdown function: 135°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 Typical Application Circuit VSS VIN CIN 4.7 F PVSS VOUT EN SW COUT 4.7 F L 2.2 H VOUT VIN Efficiency VOUT(S) = 1.8 V IOUT [mA] 0.1 1 0.01 100 10 0 100 80 60 40 20 VIN = 2.5 V VIN = 3.6 V VIN = 4.2 V |
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