The L6928 is a DC-DC monolithic regulator specifically designed to provide extremely high efficiency. The product features a 2V to 5.5V battery input range, up to 95% efficiency, internal synchronous switch, no external Schottky diode required, extremely low quiescent current, 1μA max shutdown supply current, 800mA max output current, adjustable output voltage from 0.6V, low drop-out operation: up to 100% duty cycle, selectable low noise/low consumption mode at light load, power good signal, ±1% output voltage accuracy, current-mode control, 1.4MHz switching frequency, externally synchronizable from 1MHz to 2MHz, overvoltage protection, short-circuit protection, and thermal shutdown (150°C). It is suitable for battery-powered equipment, portable instruments, cellular phones, PDAs and handheld terminals, DSC, GPS, and other applications.
The L6928 is a high‑efficiency monolithic synchronous step‑down regulator designed for battery‑powered equipment. It operates from 2 V to 5.5 V input, delivers up to 800 mA output current, and offers up to 95 % efficiency with a fixed 1.4 MHz switching frequency. The device includes internal protections such as over‑voltage, short‑circuit, and thermal shutdown, and provides a power‑good output signal.
The regulator is available in MSOP8 and VFQFPN8 (quad‑flat no‑lead) packages and can be synchronized to an external clock from 1 MHz to 2 MHz. Output voltage is adjustable from 0.6 V up to the input voltage via an external resistor divider, making it suitable for portable instruments, cellular phones, PDAs and other low‑voltage applications.
| Input voltage range | 2 V to 5.5 V |
|---|---|
| Maximum output current | 800 mA |
| Efficiency | up to 95 % |
| Switching frequency | 1.4 MHz |
| Adjustable output voltage range | 0.6 V to VIN |
| Thermal shutdown temperature | 150 °C |
The L6928 can deliver up to 800 mA of output current.
The output voltage is set with an external resistor divider on the VFB pin, allowing adjustment from 0.6 V up to the input voltage.
The regulator operates at a fixed switching frequency of 1.4 MHz.