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LD49150 Datasheet(PDF) 1 Page - STMicroelectronics |
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LD49150 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 20 page April 2007 Rev. 1 1/20 20 LD49150 1.5A Very low drop for low output voltage regulator Feature summary ■ Input voltage range: VI = 1.4V to 5.5V VBIAS = 3V to 6V ■ Stable with ceramic capacitor ■ ±1.5% initial tolerance ■ Maximum dropout voltage (VI - VO) of 200mV over temperature ■ Adjustable output voltage down to 0.8V ■ Ultra fast transient response (up to 10MHz bandwidth) ■ Excellent line and load regulation specifications ■ Logic controlled shutdown option ■ Thermal shutdown and current limit protection ■ Junction temperature range: –25°C to 125°C Description The LD49150 is a high-bandwidth, low-dropout, 1.5A voltage regulator, ideal for powering core voltages of low-power microprocessors. The LD49150 implements a dual supply configuration allowing for very low output impedance and very fast transient response. The LD49150 requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.4V to 5.5V and the bias supply requires between 3V and 6V for proper operation. The LD49150 offers fixed output voltages from 0.8V to 1.8V and adjustable output voltages down to 0.8V. The LD49150 requires a minimum output capacitance for stability, and work optimally with small ceramic capacitors. Applications ■ Graphics processors ■ PC Add-In Cards ■ Microprocessor core voltage supply ■ Low voltage digital ICs ■ High Efficiency Linear power supplies ■ SMPS post regulators www.st.com PPAK Order codes Part number Package Packaging LD49150PT08R (1) 1. Adjustable Version. PPAK (Tape&Reel) 2500 parts per reel LD49150PT10R PPAK (Tape&Reel) 2500 parts per reel LD49150PT12R PPAK (Tape&Reel) 2500 parts per reel |
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