ABLIC S-1333B21-A4T1U3

The S-1333 Series, developed by using the CMOS technology, is a positive voltage regulator IC which has low current consumption, high ripple-rejection and low dropout voltage. Even with low current consumption of 25 μA typ., it has high ripple-rejection of 75 dB typ., and a ceramic capacitor of 1.0 μF or more can be used as the input and output capacitors. It also has high-accuracy output voltage of ±1.0%.

• Output voltage: 1.0 V to 3.5 V, selectable in 0.05 V step
• Input voltage: 1.5 V to 5.5 V
• Output voltage accuracy: ±1.0% (1.0 V to 1.45 V output product: ±15 mV)
• Dropout voltage: 160 mV typ. (1.8 V output product, Iour = 100 mA)
• Current consumption: During operation: 25 μA typ., 38 μA max.; During power-off: 0.1 μA typ., 1.0 μA max.
• Output current: Possible to output 300 mA (VOUT(S) ≥ 1.3 V, VIN ≥ VOUT(S) + 1.0 V)
• Input and output capacitors: A ceramic capacitor of 1.0 μF or more can be used.
• Ripple rejection: 75 dB typ. (1.6 V output product, f = 1.0 kHz); 70 dB typ. (2.85 V output product, f = 1.0 kHz)
• Built-in overcurrent protection circuit: Limits overcurrent of output transistor.
• Built-in thermal shutdown circuit: Prevents damage caused by heat.
• Built-in ON / OFF circuit: Ensures long battery life.
• Discharge shunt function "available" / "unavailable" is selectable.
• Pull-down function "available" / "unavailable" is selectable.
• Operation temperature range: Ta = -40°C to +85°C
• Lead-free (Sn 100%), halogen-free

• Constant-voltage power supply for portable communication device, digital camera, and digital audio player
• Constant-voltage power supply for battery-powered device
• Constant-voltage power supply for home electric appliance