Datasheet Linear Technology LT3690MPUFE#PBF — 数据表

LT3690
36V, 4A, 1.5MHz Synchronous
Step-Down Switching Regulator
with 70µA Quiescent Current
Description Features Wide Input Range:
– Operation from 3.9V to 36V
– Overvoltage Lockout Protects Circuits Through 60V Transients
n 4A Maximum Output Current
n Integrated 30mΩ N-Channel Synchronous Switch
®
n Low Ripple ( 0.75V 6 VFB = 0V 5 7.0 HS SWITCH VOLTAGE DROP (V) 7 HS SWITCH CURRENT LIMIT (A) HS SWITCH CURRENT LIMIT (A) 7.5
DUTY CYCLE = 10% 6.5
6.0 DUTY CYCLE = 90% 5.5
5.0
4.5
4.0 Switch Voltage Drop vs ISW 0.5
0.4
0.3
0.2
0.1 3.5
4 0 20 40
60
DUTY CYCLE (%) 80 3.0 …