Power Management ICs

6.5 V Input, 200 mA Voltage Regulator S-1165 Series

DatasheetJan. 05, 2018


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The S-1165 Series is a positive voltage regulator with a low dropout voltage (LDO), high output voltage accuracy, and low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor. An ON/OFF circuit ensures a long battery life, and a small SOT-23-5 package realizes high-density mounting.


Output voltage
1.5 V to 5.5 V, selectable in 0.1 V steps.
High-accuracy output voltage
Low dropout voltage (LDO)
140 mV typ. (3.0 V output product, Iout =200 mA)
Low current consumption
During operation 35 µA typ. 65 µA max.,
During shutdown: 0.1 µA typ. 1.0 µA max.
High peak current capability
200 mA output is possible (@ Vin >Vout(S) +1.0 V) *1
Built-in ON/OFF circuit
Ensures long battery life.
High ripple rejection
70 dB typ. (@ 1.0 kHz)
Built-in overcurrent protector
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
  • Power supply for personal communication devices
  • Power supply for home electric/electronic appliances
  • Power supply for cellular phones

Standard Circuit

Standard Circuit