LM5166DRCR: Datasheet, Pinout, 10-VFDFN, high efficiency

The LM5166DRCR is a 3-V to 65-V ultra-low IQ synchronous buck converter with great efficiency over a wide range of input voltage and load current. Up to 500 mA of output current can be provided using integrated high-side and low-side power MOSFETs at fixed output voltages of 3.3 V or 5 V, or an adjustable output voltage. The converter is intended to make implementation as simple as possible while also giving choices for optimizing performance for the target application.

For best light-load efficiency, the pulse frequency modulation (PFM) mode is chosen, or constant on-time (COT) control is chosen for a nearly constant operating frequency. Both control techniques provide outstanding line and load transient response and quick PWM on-time for high step-down conversion ratios while requiring no loop correction.

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Footprint

3D Model

• Wide Input Voltage Range of 3 V to 65 V

• 9.7-µA No-Load Quiescent Current

• –40°C to 150°C Junction Temperature Range

• Fixed (3.3-V, 5-V) or Adjustable VOUT Options

• Meets EN55022 / CISPR 22 EMI Standards

• Integrated 1-Ω PFET Buck Switch

– Supports 100% Duty Cycle for Low Dropout

• Integrated 0.5-Ω NFET Synchronous Rectifier

– Eliminates External Schottky Diode

• Programmable Peak Current Limit Supports:

– 500-mA, 300-mA, or 200-mA Loads

• Selectable PFM or COT Mode Operation

• 1.223-V ±1.2% Internal Voltage Reference

• Switching Frequency up to 600 kHz

• 900-µs Internal or Externally-Adjustable Soft Start

• Diode Emulation and Pulse Skipping for UltraHigh Light-Load Efficiency

• No Loop Compensation or Bootstrap Components

• Precision Enable and Input UVLO With Hysteresis

• Open-Drain Power Good Indicator

• Thermal Shutdown Protection With Hysteresis

• Pin-to-Pin Compatible With the LM5165DRCR

• 10-Pin, 3-mm × 3-mm VSON Package

• Create a Custom Regulator Design Using WEBENCH® Power Designer

NA LM5166DRCR technical specifications, attributes, parameters and parts with similar specifications to NA LM5166DRCR.

LM5166XDRCR, LM5166YDRCR, LM5166XDRCT, LM5166DRCT

• Factory and Building Automation 

• Automotive and Battery-Powered Applications

• High Voltage LDO Replacement 

• Low Power Bias Supplies

Typical COD Mode Application

Texas Instruments Incorporated (TI) is an American technology company based in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, micro-controllers, and multi-core processors. The company boasts 45,000 patents around the globe as of 2016.