| Description & Applications |
Buck DC-DC Converter IC • Enables up to 2.5A (@ VIN = 5V) ／2A (@ VIN = 3.3V) of load current (IOUT) with a minimum of external components. • High efficiency: η = 95% (typ.) (synchronous mode @VIN = 5V, VOUT = 3.3V, IOUT = 0.7A) • High efficiency in the large load current range is realized because of switchable operation mode, synchronous and non-synchronous. • Operating voltage range: VIN = 2.7V to 5.6V • Low ON-resistance: RDS (ON) = 0.18Ω (high side) / 0.12Ω (low-side) typical (@VIN = 5V, Tj = 25°C) • Oscillation frequency: fOSC = 550kHz (typ.) • Feedback voltage: VFB = 0.8V ± 1% (@Tj = 0 to 85°C) • Uses internal phase compensation to achieve high efficiency with a minimum of external components. • Allows the use of a small surface-mount ceramic capacitor as an output filter capacitor. • Housed in a small surface-mount package (PS-8) with a low thermal resistance. |