DC-DC Selector Guide SMB109 SMB207/A SMB208/A SMB209/A SMB211/212 SMB113/117 SMB214  Input Voltage Range (V) 4.5 to 28 4.5 to 16 4.5 to 16 4.5 to 16 4.5 to 13.5 2.7 to 6.0** 2.7 to 6.0**   # of Outputs 8 2 2 1 1 4 3  # of Buck Outputs 3 2 2 1 1 4 3  # of LDO Outputs 1 0 0 0 0 0 0  # of Load Switch Outputs 4 0 0 0 0 0 0  Output Current (A) >20 1+1 2+2 4 >20 >5/>5/>10 >5  Control Mode Current Current Current Current Current Voltage Voltage  Switching Frequency (kHz) 300-1200 500/1000 500/1000 500/1000 250-1000 400/800/1000 400/800/1000  Output Voltage Range (V) 0.5-5.0 (Prog)* 0.8 - 5.0 (Prog)* 0.8 - 5.0 (Prog)* 0.8 - 5.0 (Prog)* 0.5 - 5.0 (Prog)* 0.5 - 5.0 (Prog)* 0.5 - VIN (Prog)*  Output Voltage Accuracy (%) 1 2.5 2.5 2.5 1 1.5/2.5 2.5  Internal/External FETs External Internal Internal Internal External External External  Output FET Configuration N-N boot N-boot N-boot N-boot N-N boot P-N P-N  Synchronous/Anynchronous Sync Async Async Async Sync Both Both  Sequencing Prog Prog Prog Prog Prog Prog Prog  Soft-start Prog Prog Prog Prog Prog Prog Prog  OC Limit Prog • • • Prog      Frequency Compensation External Internal Internal Internal External External External  Static Output Voltage Prog • • • • • • •  Dynamic Output Voltage Control • • • • • • •  Fine Step Voltage Margining • • ("A" only) • ("A" only) • ("A" only) • • •  Output UV/OV Monitor Prog • • • Prog Prog Prog  RESET/POWER GOOD Output • • • • • • •  PWM/PFM Light Load • • • • •      Phase Interleaving (degrees °) 120 180 180 N/A N/A 180 180  I2C/SMBus Interface • • • • • • •  Package 7x7 QFN-56 3x3 QFN-20 3x3 QFN-20 3x3 QFN-20 3x3 QFN-20 5x5 QFN-32 5x5 QFN-32 * External resistor divider can be used for higher output voltages ** External bootstrap circuit allows operation from higher voltages.