RT9181 Datasheet | Richiek

150m A LDO Regulator with PGOOD General Description The RT9181 is a low dropout voltage regulator with an output 2% accuracy and supply a continuous 150m A current within operating range from a +3V to +5.5V input. The power good function monitors the output voltage and indicates by pulling low the power good output (open drain). The RT9181 requires a small output capacitor with low ESR for stabilizing output voltage. The device also minimizes output overshoot during power up. The RT9181 uses an internal PMOS as the pass device, which consumes 160μA supply current independent of load and dropout conditions. The EN pin controls the output and consumes no input bias current. Other Features include current limiting, over temperature protection, and under voltage lockout. Features z Low Dropout Voltage Regulator z Up to 150m A Output Current z Power Good (PGOOD) Function z Chip Enable/Shutdown Function z Load Independent, Low Quiescent Current, 160μA z Current Limiting and Thermal Protection z Under Voltage Lockout (UVLO) z Low Variation Due to Load and Line Regulation z Output Stable with Low ESR Capacitors z SOT-23-5 Package z Ro HS pliant and 100% Lead (Pb)-Free Applications z Processor Power-Up Sequencing z Laptop, Notebook, and Palmtop puters Ordering Information RT9181- Pin Configurations (TOP VIEW) Package Type B : SOT-23-5 Operating Temperature Range P : Pb Free with mercial Standard G : Green (Halogen Free with mer- cial Standard) Output Voltage Default : 1.2V 18 : 1.8V Note : Rich Tek Pb-free and Green products are : `Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020. `Suitable for use in Sn Pb or Pb-free soldering processes. `100% matte tin (Sn) plating. Marking Information For marking information, contact our sales representative directly or through a Rich Tek distributor located in your area, otherwise visit our website for detail. VIN 1 5 VOUT GND 2 EN 3 4 PGOOD SOT-23-5 Typical Application Circuit VIN...