LT1580IQ#PBF

LT1580 is a 7A low dropout regulator designed to power the new generation of microprocessors. This device can also be used as a single supply device where dropout is comparable to an LT1584. Several other new features have been added to the device. A remote SENSE pin is brought out. This feature virtually eliminates output voltage variations due to load changes. Typical load regulation, measured at the SENSE pin, for a load current step of 100mA to 7A is less than 1mV. It has fast transient response, equal to the LT1584. On fixed voltage devices, the ADJ pin is brought out. A small capacitor on the ADJ pin further improves transient response. It is used in application such as microprocessor supplies, post regulators for switching supplies, high current regulators, 5V to 3.XXV for pentium® processors operating at 90MHz to 166MHz and beyond, 3.3V to 2.9V for portable pentium processor, powerPC ™ series power supplies etc.

• Fast transient response, remote sense
• No supply sequencing problems in dual supply mode
• Line regulation is 1mV typical at (VCONTROL = 2.5V to 12V)
• Load regulation is 1mV typical at (VCONTROL = 2.75V)
• Ripple rejection is 80dB typical at (VC = VP = 3.75V Avg, VRIPPLE = 1VP-P, VADJ = 0V)
• Current limit is 8A typical at (VCONTROL = 2.75V, VPOWER = 2.05V, ∆VOUT = 100mV)
• Operating junction temperature is -40°C to 125°C
• Package style is 5-lead plastic DD

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party