Linear Technology LTC3822-1
the LTC3822-1 can be synchronized to an external clock from 250kHz to 750kHz. The LTC3822-1 is available in the tiny footprint thermally enhanced 12-pin DFN package or 16-pin narrow SSOP package.FEATURES
No RSENSETM, Low Input Voltage, Synchronous Step-Down DC/DC ControllerDESCRIPTION
● Dual N-Channel MOSFET Synchronous Drive● No Current Sense Resistor Required
● Optimized for 3.3VIN and Li-Ion
APPLICATIONS
● Constant Frequency Current Mode Operation for Excellent Line and Load Transient Response● ±1% 0.6V Reference
● Low Dropout Operation: 99% Duty Cycle
● Phase-Lockable or Adjustable Frequency: 250kHz to 750kHz
● Internal Soft-Start Circuitry
● Tracking and Adjustable Soft-Start Input
● Selectable Maximum Peak Current Sense Threshold
● Selectable Burst Mode®/ Forced Continuous/Pulse Skipping Mode at Light Load
● Digital RUN Control Pin
● Output Overvoltage Protection
● Micropower Shutdown: IQ = 7.5µA
● Tiny Thermally Enhanced 12-Pin (3mm × 3mm) DFN or 16-Pin Narrow SSOP Packages
APPLICATIONS
● Single Cell Li-Ion Powered Systems● 3.3VIN Systems , LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corporation. No RSENSE is a trademark of Linear Technology Corporation.