AOZ2003 Datasheet | Alpha & Omega Semiconductors

Description The AOZ2003 is a 3A ultra low dropout linear regulator designed for desktop motherboard, graphic card and notebook applications. This device needs dual supplies, a control voltage for the control circuitry and an input voltage for power conversion. The AOZ2003 delivers high-current and ultra low-drop output voltage for applications where VOUT is very close to VIN. The AOZ2003 features prehensive control and protection functions: a power on reset (POR) circuit for monitoring both control and power inputs for proper operation; an EN input for enabling or disabling the device, a power OK with time delay for indicating the output voltage status, a current limit function, and a thermal shutdown function. The AOZ2003 is available in exposed pad SO-8 package. Features - Ultra low dropout linear regulator - 1.35V~5.5V VIN supply voltage with external control voltage - Dropout voltage (typical): - 180m V @ 2A - 270m V @ 3A - High accuracy output voltage +1.5% - Enable and Power Good - VOUT pull low resistance when disabled - Current limiting protection - Thermal shutdown protection - Output voltage adjustable - Small footprint exposed pad SO-8 Package - Green product and Ro HS pliant Applications - Desktop, notebook PCs - Workstations - Graphic cards - Low voltage logic supplies - Gaming - SMPS post regulators Typical Application R3 5.1kΩ POK C2 1μF CNTL VIN 3 VOUT 6 C3 10μF C1 optional 2 EN FB 7 R2 12kΩ R1...