RT9179 Datasheet | Richtek

.. Adjustable, 300m A LDO Regulator with Enable General Description The RT9179 is a high performance linear voltage regulator with enable high function and adjustable output with a 1.175V reference voltage. It operates from an input of 3V to 5.5V and provides output current up to 300m A with two external resistors to set the output voltage ranges from 1.175V to 4.5V. The RT9179 has superior regulation over variations in line and load. Also it provides fast respond to step changes in load. Other Features include over-current and overtemperature protection. The device has enable pin to reduce power consumption in shutdown mode. The devices is available in the popular SOT-23-5 package. Features z z z z z z z z z 300m V Dropout @ 300m A 150u A Low Ground Pin Current Excellent Line and Load Regulation <1u A Standby Current in Shutdown Mode Guaranteed 300m A Output Current Stable with 1u F Input and Output Ceramic Capacitor Adjustable Output Voltage Ranges from 1.175V to 4.5V Over-Temperature/Over-Current Protection Ro HS pliant and 100% Lead (Pb)-Free Applications z z z z Ordering Information RT9179 Package Type B : SOT-23-5 Operating Temperature Range P : Pb Free with mercial Standard G : Green (Halogen Free with mercial Standard) Battery-Powered Equipment Graphic Card Peripheral Cards PCMCIA Card Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area, otherwise visit our website for detail. Note : Richtek 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. Pin Configurations (TOP VIEW) VIN GND EN 1 2 3 4 ADJ 5 VOUT SOT-23-5 DS9179-09 April 2008 .richtek. 1 .. Typical Application Circuit RT9179 VIN Chip Enable C3 0.1u F C1 1u F EN GND ADJ R2 VIN VOUT R1 C2 1u F...