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| OM9571, OM9572 8- 20V Input, 3A +5.0V, +3.3V Switching Regulator Three Terminal Package PRELIMINARY SPECIFICATION FEATURES * High Efficiency * Internal Short Circuit Protection * Small Footprint * High Power Density- 60W/in.3 * On- Board Bulk Capacity DESCRIPTION APPLICATIONS * Low Voltage Battery regulation * Embedded Processor Power * General Purpose Low Voltage Logic Supply * FPGA Supply The OM957XSP Integrated Switching Regulators are designed for pin compatibility with standard 3Pin linear regulators. The parts are ideally suited for non- isolated, point of load power regulation applications where small size and high efficiency are required. The package is designed using "Chipon board" technology to reduce cost and maintain power density. This part will typically not require any additional components in your application due to internal bulk capacity already provided. MAXIMUM RATINGS @ Ta=25 C (unless otherwise specified) Parameter Input Voltage Power Dissipation Output Power Lead Temp. Value 28V 3W 16W 230C Conditions Io= 3.0A Vo = 5V Vo= 5V <15 secs. MODEL OM9571SP OM9572SP CONFIGURATION CHART OUTPUT TEMPERATURE VOLTAGE RANGE 5.0V -25 to +85C 3.3V -25 to +85C MAX. OUTPUT CURRENT 3.0A 3.0A Rev.06, 10/18/00 205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246 www.omnirel.com OM9571, OM9572 PERFORMANCE CHARACTERISTICS (Ta= 25C) INPUT Parameter Line Regulation Input Voltage Range Input Filtering OUTPUT Parameter Power Vout Accuracy Vout Regulation Output Ripple Current Limiting Efficiency Min. Load Current Output Filter DYNAMIC Parameter Transient Response Frequency Symbol Rline Vin Test Conditions 10VVin 20V MIN -0.5 8 MAX +0.5 20.0 22 Units % V uF Symbol Po Vo Vreg Vr Ilim Il(min) Test Conditions Vo= 5.0V Vo= 5.0V, 3.3V Vin= 10V, 0.1AIo3A Vin= 10V, Io= 3.0A Vin= 10V Vin= 10V, Io= 3A MIN TYP 0.8 -0.3 50 4.0 85 220 -1.0 MAX 15 1.0 0.1 100 0.1 Units W % % mV(p-p) A % A uF Units S mV KHz Test Conditions 50% load step 0 to 85C MIN 40 175 200 TYP MAX 200 225 ENVIRONMENTAL Parameter Model Operating OM9571SP Temperature OM9572SP Storage Temp. Flammability MIN -25 -40 MAX +85 125 UL94V0 Units C C Rev.06, 10/18/00 205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246 www.omnirel.com OM9571, OM9572 MECHANICAL OUTLINE Package Pinout Vout GND Vin Rev.06, 10/18/00 205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246 www.omnirel.com OM9571, OM9572 APPLICATION CIRCUIT Vin(+) 1 OM957XSP 3 Vout(+) 0.1uF (optional) 2 0.1uF (optional) COM COM Internal to the package is a 22uF input capacitor and a 330uF output capacitor. The Omnirel process allows sufficient space allocation to include all components necessary to complete the basic regulation design. The additional by-pass capacitors are suggested if an improvement in switching noise becomes necessary. Rev.06, 10/18/00 205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246 www.omnirel.com |
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