The S-1133 Series is a positive voltage regulator with a low
dropout voltage, high output voltage accuracy, and low current
consumption (300 mA output current) developed based on CMOS
technology. A 1 µF small ceramic capacitor can be used*1. It
operates with low current consumption of 60 µA typ. The S-1133
Series includes an overcurrent protection circuit that prevents the
output current from exceeding the current capacitance of the output
transistor and a thermal shutdown circuit that prevents damage due
to overheating. In addition to the types in which output voltage is
set inside the IC, a type for which output voltage can be set via
an external resistor is added to a lineup (S-1133x00 Series).
SOT-89-5 and super-small SNT-8A packages realize high-density
mounting. This, in addition to low current consumption, makes the
S-1133 Series ideal for mobile devices.
■ Features
• Output voltage : 1.2 to 6.0 V, selectable in 0.1 V steps.
• Voltage setting via external resistor : Selectable from 1.8 to
8.2 V (S-1133B00/S-1133A00)
• Input voltage range : 2.0 to 10 V
• High-accuracy output voltage : ±1.0% accuracy (1.2 to 1.4 V
output product : ±15 mV accuracy)
• Low dropout voltage : 130 mV typ. (3.0 V output product, IOUT =
100 mA)
• Low current consumption : During operation : 60 µA typ., 90 µA
max.
During shutdown : 0.1 µA typ., 1.0 µA max.
• Output current : 300 mA output is possible (at VIN ≥ VOUT(S) +
1.0 V)*1
• Low ESR capacitor can be used : A ceramic capacitor of 1.0 µF or
more can be used for the input and output capacitors.
(A ceramic capacitor of 2.2 µF or more can be used for products
whose output voltage is 1.7 V or less.)
• High ripple rejection : 70 dB typ. (at 1.0 kHz, VOUT = 1.2 V)
• Built-in overcurrent protection circuit : Overcurrent of output
transistor can be restricted.
• Built-in thermal shutdown circuit : Prevents damage due to
overheating.
• Built-in ON/OFF circuit : Ensures long battery life.
• Small package : SOT-89-5, SNT-8A
• Lead-free products
■ Applications
• Power supply for battery-powered devices
• Power supply for communication devices
• Power supply for home electric appliances
