RICOH RP173x SERIES User's Manual (1) Owner's Manual
Summary
The RP173x Series is a high-performance CMOS Low Dropout Voltage Regulator IC designed primarily for powering battery-sensitive electronics, including portable communication gear and digital home appliances. Featuring a 150mA output capability and ultra-low supply/standby currents (down to 0.2μA), this IC is ideal for applications requiring extended standby times and reliable backup power. The accompanying documentation details its technical specifications, operating ranges, multiple package options (SOT-23-5, SC-88A, DFN), and built-in protection circuits like Reverse Current Protection, making it a precise solution for efficient power management in both portable and non-portable devices.
Page 1 Text Content
RP173x SERIES
11V Input 150m A LDO
NO.EA-256-111020
OUTLINE The RP173x Series are CMOS-based voltage regulator ICs featuring 150 m A output and low supply current of Typ.2.0μA. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit, a chip enable circuit and a Reverse Current Protection Circuit. RP173x Series are suitable for the power source such as the equipment being in the standby-mode. A version with /CE input pin has reduced CE pull-up resistance to make its supply current ultra low. The RP173x Series have Max.11V Input voltage and are applicable to the portable communication equipment that require the 2-cell Li-ion battery. Also they are applicable to the non-portable communication equipments. As this series includes Reverse Current Protection Circuit, there is little leakage current, if it's used as back-up circuit. Since the packages for these ICs are the SOT-23-5 package, SC-88A, or DFN(PLP)1010-4 of 1mm square, high density mounting of the ICs on boards is possible.
FEATURES • Output Current Typ. 150m A • Supply Current Typ. 2.0μA • Standby Current Typ. 0.2μA • Input Voltage Range 2.5V to Set VOUT+6.5V (Max.11V) • Output Voltage Range.................................................. 1.2V to 5.5V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) • Dropout Voltage Typ. 0.13V ( IOUT=30m A, VOUT=3.0V)
Typ. 0.90V ( IOUT=150m A, VOUT=3.0V)
• Output Voltage Accuracy.............................................. ±1.0%(1.5V < VOUT ≤ 5.5V, Topt=25°C) • Temperature-drift Coefficient of Output Voltage........... Typ. ±100ppm/°C • Line Regulation Typ. 0.02%/V • Packages DFN(PLP)1010-4, SC-88A, SOT-23-5 • Built-in Reverse Current Protection Circuit • Short Current Limit Typ. 45m A • Built-in Peak Current Limit Circuit • Output capacitors......................................................... 0.1μF or more
APPLICATIONS • Power source for portable communication equipments. • Power source for battery-powerd equipments. • Power source for electrical appliances such as cameras, VSRs and camcorders. • Power source for digital home appliances.
Page Summary Contents For RICOH RP173x SERIES User's Manual (1) Owner's Manual
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 22 |
| File Size | 982.24 KB |
| Published | June 01, 2026 |
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Frequently Asked Questions
What is the maximum input voltage for this regulator?
The RP173x Series has a Max. 11V Input voltage range.
Is this suitable for standby-mode power sources?
Yes, it's suitable for power sources like equipment being in standby-mode due to its low supply current (Typ. 2.0μA).
What are the available packages for high-density mounting?
Packages include DFN(PLP)1010-4, SC-88A, or SOT-23-5.
Does the IC offer protection against current issues?
Yes, it includes a Built-in Reverse Current Protection Circuit and a Built-in Peak Current Limit Circuit.