Operating Voltage up to 16V - Ricoh R1190x Series 1A Voltage Regulator Data Manual, Specifications User Guide
Summary
The R1190x series is a high-precision, ultra-low supply current voltage regulator designed for critical low-power applications. Featuring wide input stability (up to 16V) and built-in advanced protections—including thermal shutdown and inrush current limiting—it ensures reliable power delivery while minimizing standby consumption. This manual provides comprehensive guidelines on selecting the optimal package, understanding detailed electrical characteristics, and integrating the IC into various demanding consumer electronics, making it ideal for A/V equipment and digital home appliances.
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R1190x SERIES
1A VOLTAGE REGULATOR (Operating Voltage up to 16V)
NO.EA-183-111116
OUTLINE The R1190x series are a low supply current voltage regulator with high output voltage accuracy. The maximum operating voltage is 16V and the output current is 1A. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, as a short current protection, a peak current protection, a thermal shutdown, an inrush current limit and a chip enable circuit. The wide input voltage range (Max. 16V). Additionally, the output voltage is fixed internally, in the range from 2.0V to 12.0V by the 0.1V steps. The supply current of R1190x series is excellent (Typ. 150μA) moreover R1190x series has the standby mode (Typ. 0.1μA) by the chip enable function. Since the package for these ICs are TO-252-5-P2, SOT-89-5 and HSOP-6J with high power dissipation, high density mounting of the ICs on boards is possible.
FEATURES • Input Voltage Range 3.5V to 16V • Supply Current ......................................................Typ. 150μA • Standby Current ....................................................Typ. 0.1μA • Output Voltage Range........................................... 2.0V to 12.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
• Output Voltage Accuracy.......................................±1.5% • Temperature-Drift Coefficient of Output Voltage ...Typ. ±100ppm/°C • Dropout Voltage ....................................................Typ. 1.1V (IOUT=1A, VOUT=5V) • Output Current ......................................................Min. 1A (3.3V ≤ VOUT ≤ 12.0V) • Line Regulation .....................................................Typ. 0.02%/V • Packages ..............................................................SOT-89-5, HSOP-6J, TO-252-5-P2 • Built-in Fold Back Protection Circuit Typ.300m A (Current at short mode) • Built-in Thermal Shutdown Circuit • Built-in Inrush Current Limit Circuit The Delay Pin for setting Inrush Current Limit Time
APPLICATIONS • Power source for digital home appliances. • Power source for audio visual equipments.
Page Summary Contents For Operating Voltage up to 16V - Ricoh R1190x Series 1A Voltage Regulator Data Manual, Specifications User Guide
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 26 |
| File Size | 337.16 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What is the recommended supply current for the R1190x series regulator?
The typical supply current is 150μA, and in standby mode, it is approximately 0.1μA.
What is the operational input voltage range for this device?
It can operate with an input voltage ranging from 3.5V up to a maximum of 16V.
How does the regulator protect against high current draw or short circuits?
It includes built-in features such as Short Current Protection, Peak Current Protection, and Fold Back Protection (Typ. 300mA).
What are the specified available packages for the R1190x series?
Available packages include SOT-89-5, HSOP-6J, and TO-252-5-P2.