ABLIC S-8595A Step-Down Switching Regulator

ABLIC S-8595A Step-Down Switching Regulator is developed using a high-withstand-voltage CMOS process technology. This IC includes a high maximum operating voltage of 18V and maintains high-accuracy FB pin voltage at ±1%. The S-8595A regulator offers PWM/PFM switching control options, operates with PWM control under heavy load, and automatically switches to PFM control under light load. This IC incorporates a built-in synchronous circuit, which achieves higher efficiency more easily than conventional step-down switching regulators. Features a built-in overcurrent protection circuit, protecting the IC and coils from excessive load current, and a thermal shutdown circuit, which prevents damage from heat generation. Typical applications include a constant-voltage power supply for industrial equipment and home appliances.

Features

4V to 18V input voltage range
1V to 12V output voltage range (externally set)
1A output current
±1% FB pin voltage accuracy
91% efficiency
2.2MHz typical oscillation frequency
1.85A typical (pulse-by-pulse method) overcurrent protection function
170°C typical (detection temperature) thermal shutdown function
Hiccup control and latch control short-circuit protection function
100% duty cycle operation
5.8ms typical soft-start function

3.35V typical (detection voltage) Under Voltage Lockout function (UVLO)
Input and output capacitors are ceramic capacitors compatible
Ta = -40°C to +105°C operating temperature range
Lead-free (Sn 100%) and halogen-free
Packages:
- HTMSOP-8 (4mm x 2.9mm x t0.8mm maximum)
- HSNT-8(2030) (3mm x 2mm x t0.5mm maximum)