SMB208A

SMB207/A/208/A/209/A Preliminary Information 1 (See Last Page) Single & Dual Programmable Buck Regulators with Integrated MOSFETs and Digital Control FEATURES & APPLICATIONS Features Single/Dual Step-Down DC-DC Outputs - Integrated power MOSFET switches - 1A/2A/4A output current with built in current limit - Input voltage range: +4.5V to +16V - +0.8V to +5.0V output voltage (+/-2.5% accuracy) - Automatic PFM mode for light load efficiency - 1800 phase interleave (SMB207/A/208/A) - Integrated frequency compensation - Input undervoltage lockout (UVLO) Integrated Power Control and Programmability - I2C Digital or Pin Control - Coarse and Fine Output Voltage Setting 16-level “Coarse” nominal setpoint +0.8V to +1.8V @ 100mV/step +2.5/2.3/3.0/3.3/5.0V 8-level “Fine” Margining (20XA only) +1.14% to +7.95% (vs. coarse setting) - PWM frequency: 500kHz or 1MHz - Output up/down sequence (SMB207/A/208/A) - Digital output softstart/stop - Output UV monitoring with PGOOD/RES...