FAN23SV60 TinyBuck 10 A Integrated Synchronous Buck Regulator May 2014 FAN23SV60 TinyBuck 10 A Integrated Synchronous Buck Regulator Description Features The FAN23SV60 TinyBuck is a highly efficient V Range: 7 V to 24 V Using Internal Linear IN integrated synchronous buck regulator. The regulator is Regulator for Bias capable of operating with an input range from 7 V to 24 V V Range: 4.5 V to 5.5 V with V /P /P IN IN VIN VCC and supporting up to 10 A continuous load currents. Connected to Bypass Internal Regulator The FAN23SV60 utilizes Fairchilds constant on-time High Efficiency: Over to 96% Peak control architecture to provide excellent transient response and to maintain a relatively constant switching Continuous Output Current: 10 A frequency. This device utilizes Pulse Frequency MOSFETs R (Typical): HS: 12.2 m, DS,ON Modulation (PFM) mode to maximize light-load LS: 2.88 m efficiency by reducing switching frequency when the Internal Linear Bias Regulator inductor is operating in discontinuous conduction mode at light loads, while clamping the minimum frequency Accurate Enable facilitates V UVLO Functionality IN above the audible range with ultrasonic mode. PFM Mode for Light-Load Efficiency Switching frequency and over-current protection can Excellent Line and Load Transient Response be programmed to provide a flexible solution for Precision Reference: 1% Over Temperature various applications. Output over-voltage, under- voltage, over-current, and thermal shutdown protections Output Voltage Range: 0.6 to 5.5 V help prevent damage to the device during fault Programmable Frequency: 200 kHz to 1.5 MHz conditions. After thermal shutdown is activated, a hysteresis feature restarts the device when normal Programmable Soft-Start operating temperature is reached. Low Shutdown Current Adjustable Sourcing Current Limit Internal Boot Diode Thermal Shutdown Halogen and Lead Free, RoHS Compliant Applications Mainstream Notebooks Servers and Desktop Computers Game Consoles Telecommunications Storage Base Stations Ordering Information Operating Output Part Number Configuration Package Temperature Range Current (A) 34-Lead, PQFN, FAN23SV60MPX PFM with Ultrasonic Mode -40 to 125C 10 5.5 mm x 5.0 mm Forced PWM or no ultrasonic mode available on request. Please address requests and support questions to tinybucksupport fairchildsemi.co. 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN23SV60 Rev. 1.0.5 FAN23SV60 TinyBuck 10 A Integrated Synchronous Buck Regulator Typical Application Diagrams V = 19V IN VIN = 19V R11 C10 10 C9 2.2F 0.1F CIN CIN R7 0.1F 3x10F 64.9k VCC PVCC VIN PVIN Ext C3 EN EN 0.1F R8 V = 1.2V OUT 10k BOOT FAN23SV60 R7, R8 used for Accurate EN I =0-10A L1 OUT 0.72H R7, R8 open for Ext EN SW PGOOD SOFT START ILIM R2 C4 COUT R5 1.62k 0.1F 6x47F 1.5k R3 10k C5 C7 FREQ 100pF 15nF FB R9 54.9k R4 AGND PGND 10k Figure 1. Typical Application with VIN = 19 V V = 5V IN R11 C10 C9 10 2.2F 0.1F CIN CIN 0.1F 3x10F PVCC VIN PVIN VCC Ext C3 EN EN 0.1F V = 1.2V OUT BOOT FAN23SV60 I =0-10A OUT L1 0.72H SW PGOOD SOFT START ILIM R2 C4 C OUT R5 1.62k 1.5k 0.1F 6x47F R3 10k C5 C7 FREQ 100pF 15nF FB R9 54.9k R4 AGND PGND 10k Figure 2. Typical Application with V = 5 V IN 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN23SV60 Rev. 1.0.5 2