The LTC1772ES6 from Linear Technology is a highly efficient, constant frequency, current mode pulse width modulation (PWM) step-down DC/DC converter. Packaged in a compact ThinSOT™, this versatile converter is ideal for portable applications where space and power efficiency are critical.

Key Features:

• High Efficiency: Capable of converting input voltages from 2.65V to 8.4V, the LTC1772ES6 can deliver a continuous output current up to 600mA with efficiencies as high as 94%.
• Constant Frequency Operation: With a fixed frequency of 550kHz, the device minimizes noise and interference, making it suitable for noise-sensitive applications.
• Low Quiescent Current: The quiescent current is a mere 25µA, which significantly enhances battery life in portable devices.
• Burst Mode® Operation: For improved efficiency at light loads, the LTC1772ES6 features Burst Mode operation, reducing the quiescent current to just 10µA.
• No Schottky Diode Required: The internal synchronous rectifier eliminates the need for an external Schottky diode, saving board space and additional component costs.
• Current Mode Control: Offers excellent line and load transient response and ensures cycle-by-cycle current limiting for better protection.

Applications:

• Portable Computers
• Cellular Telephones
• Medical Instruments
• Personal Digital Assistants (PDAs)
• Wireless and DSL Modems

Additional Specifications:

• Output Voltage Range: Adjustable from 0.8V to V_IN
• Shutdown Current: < 1µA
• Low Dropout Operation: 100% Duty Cycle in Dropout
• Thermal Protection
• Package: ThinSOT-6

The LTC1772ES6 is an exemplary solution for designers who require a small, efficient, and reliable power supply. Its advanced features and robust performance make it an excellent choice for the latest generation of portable electronics.