Data Sheet No. PD60367 IR3710MTRPBF WIDE INPUT AND OUTPUT, SYNCHRONOUS BUCK REGULATOR DESCRIPTION FEATURES The IR3710 is a single-phase sync-buck PWM Input Voltage Range: 3V to 28V controller optimized for efficiency in high performance Output Voltage Range: 0.5V to 12V portable electronics. The switching modulator uses Constant On-Time control constant on-time control. Constant on-time with diode emulation provides the highest light-load efficiency Excellent Efficiency at very low output current levels required for all. Gate drive charge pump option to maximize Programmable switching frequency, soft start, and over efficiency at higher output current levels current protection allows for a very flexible solution Compensation Loop not Required suitable for many different applications. The Programmable switching frequency, soft start, and combination of the gate drive charge pump option and over current protection constant on time control allow efficiency optimization in Power Good Output the whole output current range, making this device an ideal choice for battery powered applications. Precision Voltage Reference (0.5V, +/-1%) Enable Input with Voltage Monitoring Capability Additional features include pre-bias startup, very Pre-bias Start Up precise 0.5V reference, over/under voltage shut down, Under/Over Voltage Fault Protection power good output, and enable input with voltage monitoring capability. 16pin 3x3 MLPQ lead free package RoHS compliant APPLICATION CIRCUIT Enhanced Gate Drive Application Circuit: V5 D2 DBOOT VIN D1 C1 RFF V3.3 CPO PVCC FF BOOT L UGATE VOUT VCC 6.2k 10k CBOOT EN IR3710 PHASE COUT FCCM PGOOD LGATE PGND ISET R1 RISET SS FB GND R2 CSS ORDERING INFORMATION Package Description Pin Count Parts Per Reel IR3710MTRPbF 16 4000 Page 1 of 20 www.irf.com IR Confidential 4/26/10 IR3710MTRPBF Fix Gate Voltage Application Circuit: V5 DBOOT VIN RFF NC V3.3 CPO PVCC FF BOOT L UGATE VOUT VCC 6.2k 10k CBOOT EN IR3710 PHASE COUT FCCM PGOOD LGATE PGND ISET R1 RISET SS FB GND R2 CSS 3.3V Input Voltage Application Circuit: V3.3 DBOOT RFF NC CPO PVCC FF 6.2k 10k BOOT L UGATE VCC V OUT CBOOT EN IR3710 PHASE COUT FCCM PGOOD LGATE PGND ISET R1 RISET SS FB GND R2 CSS Page 2 of 20 www.irf.com IR Confidential 4/26/10