Nisshinbo Micro Devices Inc. RP109K091B-TR

The RP109x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit and a chip enable circuit. These ICs perform with low dropout voltage and a chip enable function which prolong the battery life. The line transient response and load transient response of the RP109x Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. RP109x Series contributes to the downsizing of the hand-held equipment because it can use the 0.1μF ceramic capacitor. In addition to SOT-23-5, SC-88A and DFN1010-4 packages, a 0.8mm square ultra compact DFN(PL)0808-4 package is also available.

• Supply Current ... Typ. 50μA
• Standby Mode ... Typ. 0.1μA
• Dropout Voltage ... Typ. 0.25V (IOUT = 150mA, VOUT = 2.5V)
• Ripple Rejection ... Typ. 75dB (f = 1kHz, VOUT = 2.5V)
• Temperature-Drift Coefficient of Output Voltage ... Typ. ±100ppm/°C (VOUT < 1.8V)
• Typ. ±30ppm/°C (VOUT ≥ 1.8V)
• Line Regulation ... Typ. 0.02%N
• Output Voltage Accuracy ... ±1.0%
• Packages ... DFN(PL)0808-4, DFN1010-4, SC-88A, SOT-23-5
• Input Voltage Range ... 1.4V to 5.25V
• Output Voltage Range ... 0.8V to 3.6V (0.1V steps)
• Built-in Fold Back Protection Circuit ... Typ. 40mA (Current at short mode)
• Ceramic capacitors are recommended to be used with this IC ... 0.1μF or more

• Power source for portable communication equipment.
• Power source for electrical appliances such as cameras, VCRs and camcorders.
• Power source for battery-powered equipment.
• Power source for home appliances.