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XRP7724ILB-F Datasheet(PDF) 1 Page - Exar Corporation |
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XRP7724ILB-F Datasheet(HTML) 1 Page - Exar Corporation |
1 / 29 page X XR RP P7 77 72 24 4 Q Qu ua ad d C Ch ha an nn ne ell D Diig giitta all P PW WM M/ /P PF FM M P Prro og grra am mm ma ab blle e P Po ow we err M Ma an na ag ge em me en ntt S Sy ys stte em m October 2012 Rev. 1.0.1 Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 – Fax. +1 510 668-7001 GENERAL DESCRIPTION The XRP7724 is a quad channel Digital Pulse Width Modulated (DPWM) Step down (buck) controller. A wide 4.75V to 5.5V and 5.5V to 25V input voltage dual range allows for single supply operation from standard power rails. With integrated FET gate drivers, two LDOs for standby power and a 105kHz to 1.23MHz independent channel to channel programmable constant operating frequency, the XRP7724 reduces overall component count and solution footprint and optimizes conversion efficiencies. A selectable digital Pulse Frequency Mode (DPFM) capable of better than 80% efficiency at light current load and low operating current allow for portable and Energy Star compliant applications. Each XRP7724 output channel is individually programmable as low as 0.6V with a resolution as fine as 2.5mV, and configurable for precise soft start and soft stop sequencing, including delay and ramp control. The XRP7724 operations are fully controlled via a SMBus-compliant I2C interface allowing for advanced local and/or remote reconfiguration, full performance monitoring and reporting as well as fault handling. Built-in independent output over voltage, over temperature, over-current and under voltage lockout protections insure safe operation under abnormal operating conditions. The XRP7724 is offered in a RoHS compliant, “green”/halogen free 44-pin TQFN package. APPLICATIONS Servers Base Stations Switches/Routers Broadcast Equipment Industrial Control Systems Automatic Test Equipment Video Surveillance Systems FEATURES Quad Channel Step-down Controller Digital PWM 105kHz-1.23MHz Operations Individual Channel Frequency Selection Patented digital PFM with Ultrasonic mode Patented Over Sampling Feedback Integrated MOSFET Drivers Programmable 5 coefficient PID control 4.75V to 25V Input Voltage 4.75V-5.5 and 5.5V-25V Input Ranges 0.6V to 5.5V Output voltage SMBus Compliant - I2C Interface Full Power Monitoring and Reporting 3 x 15V Capable PSIO + 2 x GPIOs Full Start/Stop Sequencing Support Built-in Thermal, Over-Current, UVLO and Output Over-Voltage Protections On Board 5V and 3.3V Standby LDOs On Board Non-volatile Memory Supported by PowerArchitect™ TYPICAL APPLICATION DIAGRAM Fig. 1: XRP7724 Application Diagram |
Similar Part No. - XRP7724ILB-F |
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Similar Description - XRP7724ILB-F |
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