Datasheet Linear Technology LTC3769MPUF#PBF — 数据表

LTC3769
60V Low IQ Synchronous
Boost Controller
FEATURES DESCRIPTION Synchronous Operation for Highest Efficiency and
Reduced Heat Dissipatio Wide V Range: 4.5V to 60V (65V Abs Max);
IN
Operates Down to 2.3V After Start-Up
n Output Voltage Up to 60V
n ±1% 1.200V Reference Voltage
n R
SENSE or Inductor DCR Current Sensing
n 100% Duty Cycle Capability for Synchronous MOSFET
n Low Quiescent Current: 28μA
n Phase-Lockable Frequency (75kHz to 850kHz)
n Programmable Fixed Frequency (50kHz to 900kHz)
n Power Good Output Voltage Monitor
n Low Shutdown Current: 4µA
n Internal LDO Powers Gate Drive from VBIAS or EXTV
CC
n Thermally Enhanced Low Profile 24-Pin 4mm × 4mm
QFN Package and 20-Lead TSSOP Package The LTC®3769 is a high performance single output synchronous boost converter controller that drives an all
N-channel power MOSFET stage. Synchronous rectification increases efficiency, reduces power losses and eases
thermal requirements, simplifying high power boost applications. The 28µA no-load quiescent current extends …