TPS62112RSATG4
17 V， 1.5 A ，同步降压型转换器 17-V, 1.5-A, SYNCHRONOUS STEP-DOWN CONVERTER
DESCRIPON
The TPS6211x devices are a family of low-noise synchronous step-down dc-dc converters that are ideally suited for systems powered from a 2-cell Li-ion battery or from a 12-V or 15-V rail.
FEATURES
• High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency
• 3.1-V to 17-V Operating Input Voltage Range
• Adjustable Output Voltage Range From 1.2 V to 16 V
• Fixed Output Voltage Options Available in 3.3 V and 5 V
• Synchronizable to External Clock Signal up to 1.4 MHz
• Up to 1.5-A Output Current
• High Efficiency Over a Wide Load-Current Range Due to PFM/PWM Operation Mode
• 100% Maximum Duty Cycle for Lowest Dropout
• 20-µA Quiescent Current Typical
• Overtemperature and Overcurrent Protected
• Available in 16-Pin QFN Package
APPLICATIONS
• Point-of-Load Regulation From 12-V Bus
• Organizers, PDAs, and Handheld PCs
• Handheld Scanners
