Power Management ICs

6.5 V Input, 250 mA Voltage Regulator S-1206 Series

The S-1206 Series is a positive voltage regulator with ultra low current consumption, low dropout voltage (LDO), high output voltage accuracy, and 250 mA output current developed based on CMOS technology. I/O capacitors are as small as 0.1 µF. S-1206 Series operates at ultra low current consumption of 1.0 µs (typ.). The built-in low-on-resistance transistor realizes low dropout voltage and high output current. A built-in overcurrent protection circuit prevents the load current from exceeding the current capacitance of the output transistor. Three packages, SOT-23-3, SOT-89-3, and SNT-6A(H), are available. Compared with voltage regulators using a conventional CMOS process, more types of capacitors, including small I/O capacitors, can be used with the S-1206 Series. The S-1206 Series features ultra-low current consumption and comes in a small package, making them most suitable for portable equipment.


Output voltage
1.2 to 5.2 V, selectable in 0.05 V steps.
Low equivalent series resistance capacitor can be used
A ceramic capacitor of 0.1 µF or more can be used for the I/O capacitor.
Wide input voltage range
1.7 to 6.5 V
High-accuracy output voltage
±1.0% (1.2 to 1.45 V output product: ±15 mV)
Low dropout voltage (LDO)
150 mV typ. (3.0 V output product, at Iout =100 mA)
Low current consumption
During operation 1.0 µA typ. 1.5 µA max.
High output current
250 mA output is possible. (3.0 V output product, at Vin > Vout(s) + 1.0 V)*1
Built-in overcurrent protection circuit
Overcurrent of output transistor can be restricted.
Lead-free products

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


  • Power supply for battery-powered devices
  • Constant-voltage power supply for cellular phones
  • Constant-voltage power supply for portable equipments

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.