The R1163x Series is a CMOS-based voltage regulator IC with high output voltage accuracy and low supply current. These ICs have chip enable function and realize a standby mode with ultra low supply current. To prevent destruction by over current, the current limit circuit is included. The R1163x Series has 3 modes. One is standby mode with CE or standby control pin. The other two modes are realized with ECO pin. Fast Transient Mode (FT mode) and Low Power Mode (LP mode) can be alternated with ECO pin. The consumption current is reduced in Low Power Mode compared to Fast Transient Mode. The output voltage is maintained between FT mode and LP mode. Furthermore, the reverse current protection circuit is built-in. Therefore, if a higher voltage than VDD pin is forced to the output pin, the reverse current to VDD pin is very small (Max. 0.1μA), making it suitable for backup circuit. Since the packages for these ICs are SOT-23-5, SON-6, and DFN(PLP)1616-6 packages, high density mounting of the ICs on boards is possible.
The Ricoh R1163x Series consists of CMOS-based voltage regulator ICs designed for high output voltage accuracy and low supply current. These ICs include a chip enable function for a standby mode with ultra-low supply current and a built-in current limit circuit to prevent destruction by over-current. The series offers three operating modes: Standby Mode, Fast Transient Mode (FT mode), and Low Power Mode (LP mode), with the latter two being selectable via the ECO pin. The output voltage is maintained between FT and LP modes, and a reverse current protection circuit is built-in to ensure suitability for backup circuits. This manual is written in Japanese.
| Supply Current (Low Power Mode) | Typ. 6.0uA |
|---|---|
| Supply Current (Fast Transient Mode) | Typ. 70uA |
| Reverse Current | Max. 0.1uA |
| Input Voltage Range | 2.0V to 6.0V |
| Output Voltage Range | 1.5V to 5.0V |
| Output Voltage Accuracy | Typ. ±1.5% |
| Dropout Voltage | Typ. 0.25V |
| Ripple Rejection | Typ. 70dB |
| Packages | DFN(PLP)1616-6, SOT-23-5, SON-6 |
| Operating Temperature Range | -40 ~ 85 °C |
The three modes are Standby Mode, Fast Transient Mode (FT mode), and Low Power Mode (LP mode).
The maximum output current is 150mA.
A ceramic capacitor C1 of 1.0uF and C2 of 0.47uF are recommended.