Datasheet Linear Technology LT3976IMSE#PBF — 数据表

LT3976
40V, 5A, 2MHz Step-Down
Switching Regulator with
3.3µA Quiescent Current
Features Description Ultralow Quiescent Current: 3.3µA IQ at 12VIN to 3.3VOUT
n Low Ripple Burst Mode® Operation Output Ripple < 15mVP-P
n Wide Input Range: Operation from 4.3V to 40V
n 5A Maximum Output Current
n Excellent Start-Up and Dropout Performance
n Adjustable Switching Frequency: 200kHz to 2MHz
n Synchronizable Between 250kHz to 2MHz
n Accurate Programmable Undervoltage Lockout
n Low Shutdown Current: I = 700nA
Q
n Power Good Flag
n Soft-Start Capability
n Thermal Shutdown Protectio Current Limit Foldback with Soft-Start Override
n Saturating Switch Design: 75mΩ On-Resistance
n Small, Thermally Enhanced 16-Lead MSOP and
24-Lead 3mm × 5mm QFN Packages The LT®3976 is an adjustable frequency monolithic buck
switching regulator that accepts a wide input voltage range
up to 40V. Low quiescent current design consumes only
3.3µA of supply current while regulating with no load. Low …