S-85V1AB11-I6T1U ABLIC

S-85V1A Series 5.5 V INPUT, 200 mA SYNCHRONOUS STEP-DOWN www.ablic.com SWITCHING REGULATOR WITH 10 A QUIESCENT CURRENT ABLIC Inc., 2017-2018 Rev.1.2 00 The S-85V1A Series is a step-down switching regulator which features high efficiency and fast transient response. Since PWM / PFM switching control automatically switches to PFM control when under light load, high efficiency is realized. This IC is suitable for mobile devices and battery powered devices due to introduction of own distinctive COT (Constant On-Time) control. Also, high-density mounting is realized by adopting super-small, thin SNT-6A package. Therefore, the occupancy area 2 including a coil, an input capacitor and an output capacitor can be reduced to 2.0 mm 4.5 mm = 9.0 mm , and it contributes to miniaturization of electronic equipment. Features Applications Current consumption: 10 A quiescent current Bluetooth device Efficiency: 93% Wireless sensor network device Fast transient response: COT control Healthcare equipment Input voltage: 2.2 V to 5.5 V Smart meter Output voltage: 0.7 V to 2.5 V, in 0.05 V step Portable game device 2.6 V to 3.9 V, in 0.1 V step Remote control Output voltage accuracy: 1.5% (1.0 V V 3.9 V) OUT Package 15 mV (0.7 V V 1.0 V) OUT Switching frequency: 1.0 MHz (at PWM operation) SNT-6A High side power MOS FET on-resistance: 450 m (1.80 mm 1.57 mm t0.5 mm max.) Low side power MOS FET on-resistance: 350 m Soft-start function: 1 ms typ. Under voltage lockout function (UVLO): 1.8 V typ. (detection voltage) Thermal shutdown function: 135C typ. (detection temperature) Overcurrent protection function: 450 mA (at L = 2.2 H) Automatic recovery type short-circuit protection function:Hiccup control Input and output capacitors: Ceramic capacitor compatible Operation temperature range: Ta = 40C to 85C Lead-free (Sn 100%), halogen-free Typical Application Circuit Efficiency V = 1.8 V OUT(S) L 100 2.2 H VIN VOUT VIN SW 80 CIN COUT 10 F 10 F 60 PVSS VOUT VIN = 2.5 V 40 VIN = 3.6 V EN 20 VIN = 4.2 V VSS 0 0.1 110 100 1000 IOUT mA 1 5.5 V INPUT, 200 mA SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 10 A QUIESCENT CURRENT S-85V1A Series Rev.1.2 00 Block Diagram CIN VIN VIN VOUT Ripple generation circuit SW Error amplifier ON time generation + Output control circuit L VOUT circuit + SW UVP circuit Reverse current + detection circuit COUT Reference voltage circuit + PVSS EN Soft-start cicuit Enable circuit Thermal shutdown circuit Overcurrent protection circuit UVLO circuit VSS Figure 1 2