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L6933H1.2 Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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L6933H1.2 Scheda tecnica(HTML) 1 Page - STMicroelectronics |
1 / 12 page November 2007 Rev 3 1/12 12 L6933H1.2 High performance 2A ULDO linear regulator with Soft Start Features ■ 2 V to 14 V input voltage range ■ 200 mΩ rDS(on) max ■ 200 µA quiescent current at any load ■ Excellent load and line regulation ■ Adjustable from 1.2 V to 5 V ■ 1 % voltage regulation accuracy ■ Power Good output ■ MLCC capacitors filter supported ■ Adjustable Soft Start ■ Short circuit protection ■ Thermal shut down ■ HSOP8 package Applications ■ Motherboards, mobile PC ■ Hand-held instruments ■ PCMCIA Cards ■ Processors I/O ■ Chipset and RAM supply Description The L6933H1.2 ultra low drop output linear regulator operates from 2 V to 14 V and is able to support output current up to 2 A. Designed with an interna l 50 m Ω N-channel MOSFET, it can be used for on board DC-DC conversions saving in real estate, list of components, low noise generation and power dissipation. L6933H1.2 is available as adjustable version from 1.2 V to 5 V with a voltage regulation accuracy of 1 %. A Soft Start function allows the device to smoothly increase the Output Voltage at the start-up, avoiding overshoot. Inhibit function is provided. The upper current limit is fixed at 2.5 A to control the current in short circuit condition within ± 8 %. The current is sensed in the power MOS in order to limit the power dissipation. The device is also provided with a thermal shut down that limits the internal temperature at 150 °C with a histeresys of 20 °C. HSOP8 www.st.com Figure 1. Typical operating circuit Table 1. Device summary Order codes Package Packaging L6933H1.2 HSOP8 Tube L6933H1.2TR HSOP8 Tape and reel |
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