SMB118中文资料SUMMIT数据手册PDF规格书

INTRODUCTION

The SMB118 and SMB218 are highly integrated and flexible sixchannel power managers designed for use in a wide range of portable applications. The built-in digital programmability allows system designers to custom tailor the device to suit almost any multi-channel power supply application from digital camcorders to mobile phones.

FEATURES & APPLICATIONS

• Digital programming of all major parameters via I2C interface and non-volatile memory

o Output voltage setpoint/margining

o Sequencing & digital soft start

o Enable/Disable outputs independently

o Input/Output UV/OV voltage thresholds

o PWM/PFM mode

• Six programmable regulator channels with 1.5 accuracy

o Three synchronous step-down (Buck) with internal PFETs

o One configurable step-up (Boost) or synchronous step-down (Buck)

o One step-up (Boost)

o One adjustable output voltage LDO

• Programmable Linear Li-Ion Battery Charger

o Precharge/fast charge/termination current

o Fast Charge voltage threshold

o Float Voltage

• +2.7V to +6.0V Input Range (Higher system voltages supported)

• Built-in current limiting, UV/OV, and thermal protection

• Highly accurate reference and output voltage

• 1MHz PWM frequency and power-saving automatic PFM mode

• 96 bytes of user configurable nonvolatile memory

Applications

• Portable Media Players

• Digital camcorders/still cameras

• Smart PDA/Camera phones

• Handheld GPS/PDA’s

• TFT-LCD Displays/Monitors/TVs