Datasheet Linear Technology LTC3409AEDD#TRPBF — 数据表

LTC3409A
600mA Low VIN Buck
Regulator in 3mm × 3mm DFN
FEATURES DESCRIPTION n The LTC®3409A is a high efficiency, monolithic synchronous
buck regulator using a constant frequency, current mode
architecture. The LTC3409A improves upon the LTC3409’s
light load regulation in Burst Mode operation. The output
voltage is adjusted via an external resistor divider. 1.6V to 5.5V Input Voltage Range
0.62V to 5.5V Output Voltage Range
Internal Soft-Start
Selectable 1.7MHz or 2.6MHz Constant Frequency
Operation
Internal Oscillator Can Be Synchronized to an
External Clock, 1MHz to 3MHz Range
High Efficiency: Up to 95%
65μA Quiescent Current, Burst Mode® Operation
600mA Output Current (VIN = 1.8V, VOUT = 1.2V)
750mA Peak Inductor Current
No Schottky Diode Required
Low Dropout Operation: 100% Duty Cycle
0.612V Reference Voltage
Stable with Ceramic Capacitors
Shutdown Mode Draws 1μF) supply bypass capacitors. The …