代理产线

Seven-Channel Programmable DC-DC Power Manager with Battery Charger

 2007-04-11

【基本数据】

【产品特性】

Features
· +2.7V to +6.0V or Li-Ion Battery Input
· ±1.5% Output Voltage Accuracy (Max.)
· Up to 95% Voltage Conversion Efficiency
· Adjustable 500kHz to 1MHz Frequency
· Programmable and Configurable Outputs
· Programmable Li-Ion Battery Charger
· ±1.0% Float Voltage Accuracy (Max.)
· White LED Drive with Dimming
· PWM/PFM Mode Selection
· I2C Serial Interface
· Dynamic Output Voltage Management
· Individual Channel Shutdown Control
· Very low Shutdown Current: 0.1uA
· Programmable Sequencing
· Programmable Slew Rate Control
· Momentary Push Button On/Off Control
· UV/OV Monitors with RESET Control
· Current Limiting and Thermal Protection
· EEPROM Configuration Storage
SMB118 Combines High Performance DC/DC Regulation and Battery Management with Advanced Power System Control

【产品应用】

· Digital Cameras & Camcorders
· Portable Media Players
· GPS Terminals

【文字介绍】

The SMB118 is a highly integrated and flexible seven-channel power manager designed for use in a wide range of ortable 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.
The SMB118 integrates all the essential blocks required to implement a complete seven-channel power subsystem including three synchronous step-down "buck" converters, one configurable step-up "boost" or step-down synchronous "buck" converter, one step-up "boost" converter, one linear regulator (LDO) and a fully programmable Li-Ion battery charger. Additionally sophisticated power control/monitoring functions required by complex systems are built-in.
These include digitally programmable output voltage setpoint, powerup/down sequencing, enable/disable, margining and UV/OV input/output monitoring on all channels.