The R5325x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply current (Typ. 3.0μA), low dropout, and fast transient response. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, and a chip enable circuit. These ICs perform with low dropout voltage due to built-in transistor with low ON resistance, and a chip enable function prolongs the battery life of each system. The line transient response and load transient response of the R5325x Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. The supply current at no load of R5325x Series is remarkably reduced compared with R5323x Series. The mode change signal to reduce the supply current is not necessary. The output voltage of these ICs is internally fixed with high accuracy (±1.0%). Since the packages for these ICs are SOT-23-6 (Limited) and DFN(PLP)1820-6 package, dual LDO regulators are included in each, high density mounting of the ICs on boards is possible.
The Ricoh R5325x Series consists of CMOS-based voltage regulator ICs featuring high output voltage accuracy (±1.0%), low supply current (Typ. 3.0µA), and fast transient response. These devices are designed for use in power supplies for hand-held communication equipment, cameras, VCRs, camcorders, and other battery-powered applications.
| Supply Current (No Load) | Typ. 3.0µA |
|---|---|
| Ripple Rejection | Typ. 55dB |
| Input Voltage Range | 1.5V to 6.0V |
| Output Voltage Range | 1.2V to 4.0V |
| Operating Temperature Range | -40 to 85°C |
The supply current at no load is remarkably reduced, with a typical value of 3.0µA.
The ICs are available in SOT-23-6 and DFN(PLP)1820-6 packages.
A ceramic capacitor of 0.1µF or more is recommended for stable operation.