L6932H1.2 STMicroelectronics

L6932H1.2 High performance 2A ULDO linear regulator Features 2V to 14V input voltage range 200m r max DS(on) HSO-8 200A quiescent current at any load Excellent load and line regulation Adjustable from 1.2V to 5V Description 1% voltage regulation accuracy The L6932 Ultra Low Drop Output linear regulator Short circuit protection operates from 2V to 14V and is able to support output current up to 2A. Designed with an internal Thermal shut down 50m N-channel Mosfet, it can be used for HSOP8 package onboard DC-DC conversions saving in real estate, list of components, low noise generation Applications and power dissipation. L6932H1.2 is available as adjustable version from Motherboards 1.2V to 5V with a voltage regulation accuracy of Mobile PC 1%. The upper current limit is fixed at 2.5A to control Hand-held instruments the current in short circuit condition within 8%. PCMCIA Cards The current is sensed in the power mos in order Processors I/O to limit the power dissipation. Chipset and RAM supply The device is also provided with a thermal shut down that limits the internal temperature at 150C with a histeresys of 20C. L6932H1.2 provides the Enable and the Power good functions. Figure 1. Typical operating circuit VVoouutt==11.2.2V tV too 5 5VV VViinn==2V2V t too 14V 14V ViVinn VVoouutt 22 44 R3R3 PPGOOGOODD ENEN 55 R1R1 L6932HL6932H1.21.2 11 C1C1 FBFB 33 C2C2 66 77 88 GNGNDD NCNC11 NCNC22 R2R2 Table 1. Device summary Part number Package Packaging L6932H1.2 HSO-8 Tube L6932H1.2TR HSO-8 Tape and reel May 2007 Rev 2 1/13 www.st.com 13Contents L6932H1.2 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 Application informations . 7 6.1 Application circuit 7 6.2 Demoboard layout . 7 6.3 Component part list 8 7 Components selection . 8 7.1 Input capacitor 8 7.2 Output capacitor . 8 7.3 Loop Stability . 9 8 Package mechanical data 10 9 Revision history . 12 2/13