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LM5165DRCR Texas Instruments 开关稳压器 3V-65V, 150mA Sync Buck Converter
VSON-10
1.23 V to 65 V
150 mA
1 Output
相关产品
产品信息
1 Features
1• Wide Input Voltage Range of 3 V to 65 V
• 10.5-μA No-Load Quiescent Current
• –40°C to 150°C Junction Temperature Range
• Fixed (3.3-V, 5-V) or Adjustable Output Voltages
• Meets EN55022 / CISPR 22 EMI Standards
• Integrated 2-Ω PMOS Buck Switch
– Supports 100% Duty Cycle for Low Dropout
• Integrated 1-Ω NMOS Synchronous Rectifier
– Eliminates External Rectifier Diode
• Programmable Current Limit Setpoint (4 Levels)
• Selectable PFM or COT Mode Operation
• 1.223-V ±1% Internal Voltage Reference
• 900-μs Internal or Programmable Soft Start
• Active Slew Rate Control for Low EMI
• Diode Emulation Mode and Pulse Skipping for
Ultra-High Light-Load Efficiency Performance
2 Applications
• 4–20 mA Loop-Powered Sensors
• Automotive and Battery-Powered Equipment
• High-Voltage LDO Replacement
• Industrial Control Systems
• General-Purpose Bias Supplies
2 Applications
• 4–20 mA Loop-Powered Sensors
• Automotive and Battery-Powered Equipment
• High-Voltage LDO Replacement
• Industrial Control Systems
• General-Purpose Bias Supplies
2 Applications
• 4–20 mA Loop-Powered Sensors
• Automotive and Battery-Powered Equipment
• High-Voltage LDO Replacement
• Industrial Control Systems
• General-Purpose Bias Supplies
3 Description
The LM5165 device is a compact, easy-to-use, 3-V to
65-V, ultra-low IQ synchronous buck converter with
high efficiency over wide input voltage and load
current ranges. With integrated high-side and lowside
power MOSFETs, up to 150-mA of output
current can be delivered at fixed output voltages of
3.3 V or 5 V or at an adjustable output. The converter
is designed to simplify implementation while providing
options to optimize the performance for the target
application. Pulse Frequency Modulation (PFM) mode
is selected for optimal light-load efficiency or
Constant On-Time (COT) control for nearly constant
operating frequency. Both control schemes do not
require loop compensation while providing excellent
line and load transient response and short
