特点
Uses Small Ceramic Capacitors
50μA Quiescent Current (LT1307)
1mA Quiescent Current (LT1307B)
Operates with V
IN
as Low as 1V
600kHz Fixed Frequency Operation
Starts into Full Load
Low Shutdown Current: 3μA
Low-Battery Detector
3.3V at 75mA from a Single Cell
Automatic Burst Mode? Operation at Light Load (LT1307)
Continuous Switching at Light Load (LT1307B)
Low V
CESAT
Switch: 295mV at 500mA
典型应用
典型应用
描述
Unlike competitive devices, large electrolytic capacitors are not required with the LT1307/LT1307B in single cell applications. The high frequency (600kHz) switching allows the use of tiny surface mount multilayer ceramic (MLC) capacitors along with small surface mount inductors. The devices work with just 10μF of output capacitance and require only 1μF of input bypassing.
The LT1307/LT1307B are available in 8-lead MSOP, PDIP and SO packages.