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FAN21SV04 Arkusz danych(PDF) 1 Page - Fairchild Semiconductor |
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FAN21SV04 Arkusz danych(HTML) 1 Page - Fairchild Semiconductor |
1 / 18 page August 2009 © 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN21SV04 • Rev. 1.0.1 FAN21SV04 — TinyBuck™ 4A, 24V Single-Input Integrated Synchronous Buck Regulator Features Single-Supply Operation with 4A Output Current Wide Input Range with Dual Supply: 3.0V to 24V Wide Output Voltage Range: 0.8V to 80% VIN Over 94% Peak Efficiency 1% Reference Accuracy Over Temperature Fully Synchronous Operation with Integrated Schottky Diode on Low-Side MOSFET Boosts Efficiency Single Supply Device for VIN > 6.5V – 24V Programmable Frequency Operation (200- 600KHz) Synchronizable to External Clock with Master/Slave Provisions Power-Good Signal Accepts Ceramic Capacitors on Output External Compensation for Flexible Design Starts on Pre-Bias Outputs Integrated Bootstrap Diode Programmable Over-Current Protection Under-Voltage, Over-Voltage, and Thermal- Shutdown Protections 5x6mm, 25-Pin, 3-Pad MLP Package Applications Servers & Telecom Graphics Cards & Displays Computing Systems Set-Top Boxes & Game Consoles Point-of-Load Regulation Description The FAN21SV04 TinyBuck™ is a highly efficient, small-footprint, programmable-frequency, 4A, integrated synchronous buck regulator. FAN21SV04 contains both synchronous MOSFETs and a controller/driver with optimized interconnects in one package, which enables designers to solve high- current requirements in a small area with minimal external components, thereby reducing cost. On- board internal 5V regulator enables single-supply operation for input voltages >6.5V. The FAN21SV04 can be configured to drive multiple slave devices OR synchronize to an external system clock. In slave mode, FAN21SV04 may be set up to be free-running in the absence of a master clock signal. External compensation, programmable switching frequency, and current-limit features allow for design optimization and flexibility. High-frequency operation allows for all-ceramic solutions. Fairchild’s advanced BiCMOS power process, combined with low-RDS(ON) internal MOSFETs and a thermally efficient MLP package, provide the ability to dissipate high power in a small package. Integration helps minimize critical inductances, making layout simpler and more efficient compared to discrete solutions. Output over-voltage, under-voltage, over-current, and thermal-shutdown protections help protect the device from damage during fault conditions. FAN21SV04 prevents pre-biased output discharge during startup in point-of-load applications. Related Application Notes AN-8022 — TinyCalc™ Calculator Ordering Information Part Number Operating Temperature Range Eco Status Package Packing Method FAN21SV04MPX -10°C to 85°C Green Molded Leadless Package (MLP) 5x6mm Tape and Reel FAN21SV04EMPX -40°C to 85°C Green Molded Leadless Package (MLP) 5x6mm Tape and Reel For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. |
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