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High efficiency monolithic synchronous step-down regulator

Quantity $ per Unit Savings
1 - 9$2.810%
10 - 24$2.5310%
25 - 99$2.3915%
100 - 249$2.0826%
250 - 499$1.9730%
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Parameter NameParameter Value
Input Voltage Min Volt2.0
Input Voltage Max Volt5.5
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NameQFN-8L P 0.5 mm

The device is a DC-DC monolithic regulator specifically designed to provide high efficiency. The L6928 supply voltage can be as low as 2 V to be used in single Li-Ion cell supplied applications. Output voltage can be selected by an external divider down to 0.6 V. Duty cycle can saturate 100% allowing low-dropout operation. The device is based on a 1.4 MHz fixed frequency, current mode architecture. Low consumption mode operation can be selected at light load conditions, allowing switching losses to be reduced. The L6928 is externally synchronized by a clock, which makes it useful in noise sensitive applications. Other features like Power Good, overvoltage protection, short-circuit protection and thermal shutdown (150 °C) are also present.

Key features
  • 2 V to 5.5 V battery input range
  • High efficiency: up to 95%
  • Internal synchronous switch
  • No external Schottky diode required
  • Extremely low quiescent current
  • 1 µA max. shutdown supply current
  • 800 mA max. output current
  • Adjustable output voltage from 0.6 V
  • Low-dropout 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
  • 1.4 MHz switching frequency
  • Externally synchronized from 1 MHz to 2 MHz
  • OVP
  • Short-circuit protection