Datasheet Analog Devices LTC1779 — Даташит

LTC1779
250mA Current Mode
Step-Down DC/DC Converter
in ThinSOT
Description Features High Efficiency: Up to 94%
nn 250mA Output Current
nn Wide V Range: 2.5V to 9.8V
IN
nn 550kHz Constant Frequency Operation
nn Burst Mode™ Operation at Light Load
nn Low Dropout: 100% Duty Cycle
nn 0.8V Reference Allows Low Output Voltages
nn ±2.5% Reference Accuracy
nn Current Mode Operation for Excellent Line and Load
Transient Response
nn Low Quiescent Current: 135µA
nn Shutdown Mode Draws Only 8µA Supply Current
nn Low Profile (1mm) ThinSOT™ Package The LTC®1779 is a constant frequency current mode stepdown DC/DC converter in a 6-lead ThinSOT package. The
part operates with a 2.5V to 9.8V input and can provide
up to 250mA of output current. Current mode control
provides excellent AC and DC load and line regulation.
The device incorporates an accurate undervoltage lockout
feature that shuts down the LTC1779 when the input voltage falls below 2V. Applications To further maximize the life of a battery source, the …