Nisshinbo Micro Devices Inc. RP173K421B-TR

The RP173x is a voltage regulator featuring 150 mA output and low supply current of Typ. 2.0 μA. It 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 is suitable for the power source such as the equipment being in the standby-mode. The A version with CE input pin has reduced CE pull-up resistance to make its supply current ultra low. The RP173x has Max.11 V Input voltage and is applicable to the portable communication equipment that requires the 2-cell Li-ion battery. Also it is applicable to the non-portable communication equipments. As the RP173x includes Reverse Current Protection Circuit, there is little leakage current, if it is used as back-up circuit. Packages are available in SOT-23-5, SC-88A, and 1-mm square DFN(PL)1010-4 packages. High density mounting of the ICs on boards is possible.

• Output Current...Typ. 150 mA
• Supply Current...Typ. 2.0 μA
• Standby Current...Typ. 0.2 μA
• Dropout Voltage...Typ. 0.13 V (Iout = 30 mA, Vout = 3.0 V), Typ. 0.90 V (Iout = 150 mA, Vout = 3.0 V)
• Output Voltage Accuracy...±1.0% (1.5 V < VOUT ≤ 5.5 V, Ta = 25°C)
• Line Regulation...Typ. 0.02%/V
• Packages DFN(PL)1010-4, SC-88A, SOT-23-5
• Input Voltage Range...2.5 V to Set VOUT + 6.5 V (Max. 11 V)
• Output Voltage Range...1.2 V to 5.5 V (0.1 V step)
• Built-in Reverse Current Protection Circuit
• Short Current Limit...Typ. 45 mA
• Built-in Peak Current Limit Circuit
• Output capacitors...0.1 μF or more

• Power source for portable communication equipments.
• Power source for battery-powered equipments.
• Power source for electrical appliances such as cameras, VSRs and camcorders.
• Power source for digital home appliances.