Datasheet Linear Technology LTC3872HDDB-1#TRMPBF — 数据表

LTC3872-1
No RSENSE
Current Mode Boost
DC/DC Controller
Features Description No Current Sense Resistor Required
n V
OUT up to 60V
n Constant Frequency 550kHz Operatio Internal Soft-Start and Optional External Soft-Start
n Adjustable Current Limit
n Pulse Skipping at Light Load
n V Range: 2.75V to 9.8V
IN
n В±1.5% Voltage Reference Accuracy
n Current Mode Operation for Excellent Line and Load
Transient Response
n Low Profile (1mm) SOT-23 and 2mm Г— 3mm DFN
Packages The LTCВ®3872-1 is a constant frequency current mode
boost DC/DC controller that drives an N-channel power
MOSFET and requires very few external components. The
No RSENSETM architecture eliminates the need for a sense
resistor, improves efficiency and saves board space. Applications High switching frequency of 550kHz allows the use of a
small inductor. The LTC3872-1 is available in an 8-lead
low profile (1mm) ThinSOTTM package and 8-pin 2mm Г— …