Datasheet Analog Devices LT8607 — Ficha de datos

LT8607/LT8607B
42V, 750mA Synchronous
Step-Down Regulator with
2.5µA Quiescent Current
FEATURES DESCRIPTION Wide Input Voltage Range: 3.0V to 42V
n Ultralow Quiescent Current Burst Mode® Operatio …

LT8607/LT8607B
42V, 750mA Synchronous
Step-Down Regulator with
2.5µA Quiescent Current
FEATURES DESCRIPTION Wide Input Voltage Range: 3.0V to 42V
Ultralow Quiescent Current Burst Mode® 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 4.7µF to 10µF 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
Rev. C For more information www.analog.com LT8607/LT8607B
APPLICATIONS INFORMATION
significant inductance due to 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
capacitor is required to reduce the resulting voltage ripple at the LT8607 and to force this very high frequency …

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 …