RICOH R5326x SERIES Automatic Mode Shift Dual 150mA LDO Data Sheet User Manual
Summary
Explore efficient power management with this dual LDO voltage regulator series. These advanced CMOS ICs feature automatic mode shifting between fast and low-power modes, offering stellar efficiency and maintained high output accuracy crucial for portable electronics. The detailed manual provides essential technical specifications covering electrical characteristics, multiple package options (WLCSP/DFN), and pin configurations. It is tailored for design engineers creating power sources for applications ranging from battery-operated equipment and cameras to handheld communication devices requiring stable and highly efficient operation.
Page 1 Text Content
R5326x SERIES
Automatic Mode Shift Dual 150m A LDO
NO.EA-138-120404
OUTLINE The R5326x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, Typ. 5.5μA low supply current, and remarkably improved transient response compared with the conventional low supply current voltage regulators. The supply current of IC itself is automatically shifts between fast mode and low power mode depending on the load current. (The current threshold is fixed internally.) Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting the output voltage, a current limit circuit for preventing from the destruction by an over current, and so on. The chip enable function realizes the standby mode with ultra low supply current. Since the packages for these ICs are SOT-23-6 (Discontinued) and DFN(PLP)1820-6, and chip size package, WLCSP-6-P1 (Limited), dual LDO regulators are included in each package, high density mounting of the ICs on boards is possible.
FEATURES • Supply Current (Low Power Mode)...................Typ. 5.5μA×2 (VR1&VR2) (IOUT=0m A) • Supply Current (Fast Mode)..............................Typ. 50μA×2 (VR1&VR2) (IOUT=10m A) • Standby Current ................................................Typ. 0.1μA (VR1&VR2) • Dropout Voltage ................................................Typ. 0.19V (IOUT=150m A, VOUT=2.8V) • Ripple Rejection................................................Typ. 70d B (f=1k Hz)
Typ. 60d B (f=10k Hz)
• Input Voltage Range .........................................1.4V to 6.0V • Output Voltage Range.......................................0.8V to 4.2V (0.1V steps) (For details, please refer to MARK INFORMATIONS.) • Output Voltage Accuracy...................................±1.0% (VOUT>1.5V) • Line Regulation .................................................Typ. 0.02%/V • Packages .........................................................WLCSP-6-P1 (Limited), DFN(PLP)1820-6,
SOT-23-6 (Discontinued)
• Built-in fold-back protection circuit ....................Typ. 50m A (Current at short mode) • Ceramic Capacitor is recommended. ..............1.0μF to 3.3μF (Depending on VIN and set VOUT. Refer to the electrical characteristics table.)
APPLICATIONS • Power source for handheld communication equipment. • Power source for electrical appliances such as cameras, VCRs and camcorders. • Power source for battery-powered equipment.
Page Summary Contents For RICOH R5326x SERIES Automatic Mode Shift Dual 150mA LDO Data Sheet User Manual
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 27 |
| File Size | 488.61 KB |
| Published | May 31, 2026 |
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