L6933H1.2TR STMicroelectronics

L6933H1.2 High performance 2A ULDO linear regulator with Soft Start Features 2 V to 14 V input voltage range 200 m r max DS(on) HSOP8 200 A quiescent current at any load Excellent load and line regulation Adjustable from 1.2 V to 5 V Description 1 % voltage regulation accuracy The L6933H1.2 ultra low drop output linear Power Good output regulator operates from 2 V to 14 V and is able to support output current up to 2 A. Designed with MLCC capacitors filter supported an internal 50 m N-channel MOSFET, it can be Adjustable Soft Start used for on board DC-DC conversions saving in Short circuit protection real estate, list of components, low noise generation and power dissipation. L6933H1.2 is Thermal shut down available as adjustable version from 1.2 V to 5 V HSOP8 package with a voltage regulation accuracy of 1 %. A Soft Start function allows the device to smoothly Applications increase the Output Voltage at the start-up, avoiding overshoot. Inhibit function is provided. Motherboards, mobile PC The upper current limit is fixed at 2.5 A to control Hand-held instruments the current in short circuit condition within 8 %. The current is sensed in the power MOS in order PCMCIA Cards to limit the power dissipation. Processors I/O The device is also provided with a thermal shut Chipset and RAM supply down that limits the internal temperature at 150 C with a histeresys of 20 C. Figure 1. Typical operating circuit Table 1. Device summary Order codes Package Packaging L6933H1.2 HSOP8 Tube L6933H1.2TR HSOP8 Tape and reel November 2007 Rev 3 1/12 www.st.com 12Contents L6933H1.2 Contents 1 Pin settings 3 1.1 Pin connection 3 1.2 Pin description 3 2 Maximum ratings 4 2.1 Absolute maximum ratings . 4 2.2 Thermal data . 4 3 Block diagram 4 4 Electrical characteristics . 5 5 Typical electrical performance . 6 6 Soft-Start 6 7 Application information 7 7.1 Application circuit 7 7.2 Demoboard layout . 7 7.3 Component part list 8 8 Components selection . 9 8.1 Input capacitor 9 8.2 Output capacitor . 9 9 Package mechanical data 10 10 Revision history . 11 2/12