Datasheet Linear Technology LT8607EDC#PBF — 数据表

LT8607
42V, 750mA Synchronous
Step-Down Regulator with
2.5ВµA Quiescent Current
FEATURES DESCRIPTION Wide Input Voltage Range: 3.0V to 42V
nn Ultralow Quiescent Current Burst ModeВ® Operation:
nn 0.5),
a minimum inductance is required to avoid sub-harmonic
oscillation. See Application Note 19.
Input Capacitor
Bypass the input of the LT8607 circuit with a ceramic capacitor of X7R or X5R type. Y5V types have poor performance
over temperature and applied voltage, and should not be
used. A 4.7ВµF to 10ВµF ceramic capacitor is adequate to
bypass the LT8607 and will easily handle the ripple current.
Note that larger input capacitance is required when a lower
switching frequency is used. If the input power source has
high impedance, or there is significant inductance due to
8607fb For more information www.linear.com/LT8607 LT8607
APPLICATIONS INFORMATION
long wires or cables, additional bulk capacitance may be
necessary. This can be provided with a low performance
electrolytic capacitor.
Step-down regulators draw current from the input supply in pulses with very fast rise and fall times. The input …