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R1155 Series

24V Input Automatic ECO Mode Shift 150mA Voltage Regulator

  • Consumer
  • RoHS

The R1155 Series are CMOS-based Automatic Mode shift 24V input voltage regulators featuring 150mA output. In addition to B version with the internally fixed output voltage, C version with adjustable output voltage with an external resistor is also available.

Specs & Datasheets

Input Voltage Range 3.5 V to 24.0 V (26.0 V)
Operating Temperature Range -40°C to 105°C (125°C)
Supply Current Typ. 7.5 µA
Standby Current Typ. 0.1 µA
Output Voltage Range Internally Fixed Ver.: 2.5 V to 12.0 V
Externally Specified Ver.: 2.5 V
(Adjustable in the range of 2.5 V to 23.0 V with external resistors)
Output Voltage Accuracy ±2.0% (Ta = 25°C)
Output Current Min. 150 mA (VIN = 6.0 V or 3.0 V)
Ripple Rejection Typ. 60 dB
Package SOT-23-5, SOT-89-5

Download Datasheet

Protections / Functions

Functional Description

TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver

Technical Documents

Typical Application: Externally Adjustable of Output Voltage Type

Typical Application: Externally Adjustable of Output Voltage Type

R1155x050B Dropout Voltage vs. Output Current

R1155x050B Dropout Voltage vs. Output Current

CIN=0.1µF, COUT=4.7µF

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
SOT-23-5 R1155N R1155N-FE
  • gradeConsumerC
SOT-89-5 R1155H R1155H-FE

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

TSD Thermal Shutdown Function
Reverse Current Protection Reverse Current Protection
Current Limit Overcurrent Protection
ISC Short Current Protection
Inrush Current Limit Inrush Current Protection
Constant Slope Constant Slope Function
ECO mode ECO Function
Auto Discharge Auto Discharge Function
External Driver External Output Driver Transistor

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