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LM3488QMM Datasheet PDF - Texas Instruments

Part NameDescriptionManufacturer
LM3488QMM Automotive High-Efficiency Controller for Boost, SEPIC and Fly-Back DC-DC Converters TI
Texas Instruments TI
LM3488QMM Datasheet PDF : LM3488QMM pdf   
LM3488 image

Description
The LM3488 is a versatile low-side N-FET high performance controller for switching regulators. This device is suitable for use in topologies requiring low side FET, such as boost, flyback, or SEPIC. Moreover, the LM3488 can be operated at extremely high switching frequency to reduce the overall solution size. The switching frequency of LM3488 can be adjusted to any value from 100 kHz to 1 MHz by using a single external resistor or by synchronizing it to an external clock. Current mode control provides superior bandwidth and transient response, besides cycle-by-cycle current limiting. Output current can be programmed with a single external resistor.
The LM3488 has built-in features such as thermal shutdown, short-circuit protection, and overvoltage protection. Power-saving shutdown mode reduces the total supply current to 5 µA and allows power supply sequencing. Internal soft-start limits the inrush current at start-up.

Features
• Automotive Grade Product, AEC-Q100 Qualified
• 8-Lead VSSOP Package
• Internal Push-Pull Driver With 1-A Peak Current Capability
• Current Limit and Thermal Shutdown
• Frequency Compensation Optimized With a
   Capacitor and a Resistor
• Internal Soft-Start
• Current Mode Operation
• Undervoltage Lockout With Hysteresis
• Key Specifications:
   – Wide Supply Voltage Range of 2.97 V to 40 V
   – 100-kHz to 1-MHz Adjustable and
      Synchronizable Clock Frequency
   – ±1.5% (Overtemperature) Internal Reference
   – 5-µA Shutdown Current (Overtemperature)
• Create a Custom Design Using the LM3488 with
   the WEBENCH Power Designer

Applications
• Automotive Start-Stop Applications
• Automotive ADAS Driver Information
• One Cell/Two Cell Li-ion Battery Powered
   Portable Bluetooth Audio Systems
• Notebooks, PDAs, Digital Cameras, and other
   Portable Applications
• Offline Power Supplies
• Set-Top Boxes
• Boost for Audio Amplifiers

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