R1173x - RICOH

R1173x Super low on resistance/Low voltage LDO

SOT-89-5 Pin No. 1 2 3 4 5 Symbol ADJ or NC GND CE VDD VOUT Description ADJUST Pin (R1173H001x) No Connection (R1173Hxx1x) Ground Pin Chip Enable Pin Input Pin Output Pin 4 5 6 GND CE VDD HSON-6 Pin No. 1 2 3 Symbol VOUT VOUT ADJ or NC Description Output Pin Output Pin ADJUST Pin (R1173D001x) No Connection (R1173Dxx1x) Ground Pin Chip Enable Pin Input Pin .

Features

of super low dropout, 1A output current capability, and -3mV typical load regulation at 1A. Even the output voltage is set at 1.5V, on resistance of internal FET is typically 0.32Ω. Therefore, applications that require a large current at small dropout are suitable for the R1173x series. Low input voltage is acceptable and low output voltage can be set. The minimum input voltage is 1.4V, and the lowest set output voltage is 0.8V. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor net for setting output voltage, a current limit circuit at over-current, a chip en.