Buck Switching Regulator IC Adjustable 1 Output 1000mA SOT-23-6
The LGS5145 is a step-down DC/DC regulator with
internal switching, featuring SKIP control mode, which
combines low quiescent current with high switching
frequency to achieve high efficiency over a wide range
of load currents. The SKIP mode uses a short “burst”
cycle to switch the inductor current through the internal
power MOSFETs, followed by a sleep cycle in which
the power switch is turned off and the load current is
supplied by the output capacitor. At light loads, the
burst cycle is a fraction of the total cycle time,
minimizing the average supply current and greatly
improving efficiency at light loads.
The LGS5145 has a wide input voltage range of 4.5V55V, minimizing the need for external surge
suppression components.The LGS5145 features an
integrated low resistance 0.6Ω high-side power
MOSFET that provides at least 1A of output current
capability with excellent load and line transient
response.
Junction temperature range from -40°C to
+125°C
■ All ports are ESD protected to 3000V (HBM).
■ Wide input voltage range: 4.5V-55V
■ 600mΩ High Side Metal Oxide Semiconductor
Field Effect Transistors
■ At least 1000mA continuous current output
capability
■ Up to 90% efficiency
■ SKIP mode provides very high light load
efficiency
■ 1.2MHz fixed operating frequency
■ Internal compensation helps reduce solution size,
cost and design complexity
■ Supports capacitive start for large loads
■ Cycle-by-cycle overcurrent protection
■ Output short circuit protection
■ thermal shutdown protection
■ Available in ultra-small package SOT23-6 package
#CommonPartsLibrary #IntegratedCircuit #PowerManagement #Voltage-regulator #Switching-regulator
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