OM9571, OM9572 8- 20V Input, 3A +5.0V, +3.3V Switching Regulator Three Terminal Package PRELIMINARY SPECIFICATION APPLICATIONS • Low Voltage Battery regulation • Embedded Processor Power • General Purpose Low Voltage Logic FEATURES • High Efficiency • Internal Short Circuit Protection • Small Footprint • High Power Density- 60W/in.3 • On- Board Bulk Capacity Supply • FPGA Supply DESCRIPTION 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. MODEL OM9571SP OM9572SP Value 28V 3W 16W 230°C Conditions Io= 3.0A Vo = 5V Vo= 5V <15 secs. CONFIGURATION CHART OUTPUT TEMPERATURE VOLTAGE RANGE 5.0V -25 to +85°°C 3.3V -25 to +85°°C 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= 25°°C) 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 Symbol Po ∆Vo Vreg Vr Ilim η Il(min) Test Conditions 10V≤ ≤Vin≤ ≤ 20V MIN -0.5 8 Test Conditions Vo= 5.0V Vo= 5.0V, 3.3V Vin= 10V, 0.1A≤ ≤Io≤ ≤3A Vin= 10V, Io= 3.0A Vin= 10V Vin= 10V, Io= 3A MAX +0.5 20.0 Units % V 22 uF MIN -1.0 TYP MAX 15 1.0 0.1 100 0.8 -0.3 50 4.0 85 0.1 220 Test Conditions 50% load step 0 to 85°°C ENVIRONMENTAL Parameter Model Operating OM9571SP Temperature OM9572SP Storage Temp. Flammability MIN TYP MAX 40 175 MIN -25 -40 200 200 225 MAX +85 Units °C 125 UL94V0 °C Rev.06, 10/18/00 205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246 www.omnirel.com Units W % % mV(p-p) A % A uF Units µS mV KHz 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 1 Vin(+) 3 Vout(+) OM957XSP 0.1uF (optional) 0.1uF (optional) 2 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