Power Management ICs

10 V Input, 300 mA Voltage Regulator S-1133 Series

The S-1133 Series is a positive voltage regulator with a low dropout voltage (LDO), 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 package realizes a high density mounting. This, in addition to low current consumption, makes the S-1133 Series ideal for mobile devices. *1. A ceramic capacitor of 2.2 µF or more can be used for products whose output voltage is 1.7 V or less.


Output voltage (internally set)
1.2 V to 6.0 V, selectable in 0.1 V step.
Output voltage (externally set)
1.8 V to 8.2 V, settable via external resistor
Input voltage
2.0 V to 10 V
Output voltage accuracy
(1.2 V to 1.4 V output product: ±15 mV)
Dropout voltage
130 mV typ.
(3.0 V output product, Iout = 100 mA)
Current consumption
During operation: 60 μA typ., 90 μA max.
During power-off: 0.1 μA typ., 1.0 μA max.
Output current
Possible to output 300 mA
(at Vin >Vout(s) +1.0 V) *1
Input and output capacitors
A ceramic capacitor of 1.0 μF or more can be used. (A ceramic capacitor of 2.2 μF or more can be used for products whose output voltage is 1.7 V or less.)
Ripple rejection
70 dB typ. (1.2 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.
Operation temperature range
Ta = −40°C to +85°C
Lead-free, Sn 100%, halogen-free

*1. Attention should be paid to the power dissipation of the package when the output current is large.


  • Power supply for battery-powered devices
  • Power supply for personal communication devices
  • Power supply for home electric appliances

Standard Circuit

Standard Circuit

Parts List

  • U(Ux), S and G at the end of the product name of ABLIC Inc. were used to indicate different material specifications as “environmental code”,
    however, these have now been unified into “lead-free and halogen-free” and are identical in terms of environmental quality.
  • Note: Lead-free plating other than 100% Sn is applied to some limited old products, therefore, please contact our sales representatives for details.
  • These descriptions may be different from the actual product name and parameter.
    Please confirm the product name and specifications with the data sheet again.
  • The information herein is subject to change without notice.