| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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3,512 pcs
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3512 pcs | On Request | 1 | On Request | On Request | 2000 | On Request | On Request |
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The LTC1143LCS from LT is a dual step-down switching regulator controller designed for high efficiency applications. It features automatic Burst Mode operation to maintain efficiency at low output currents.
This controller supports a wide input voltage range from 3.5V to 16V and can achieve efficiencies exceeding 95%. It utilizes current mode operation for excellent transient response and maintains high efficiency over a broad output current range. The device also boasts low standby current per output at light loads.
Designed for flexibility, the LTC1143L-ADJ variant offers dual adjustable outputs. It operates with a constant off-time current mode architecture, driving external power MOSFETs at switching frequencies up to 400kHz. The 100% duty cycle capability ensures very low dropout regulation.
The LTC1143LCS is available in a narrow 16-pin SO package, making it suitable for applications requiring dual output voltages in a compact board space. Typical applications include personal digital assistants, notebook computers, battery-operated digital devices, and portable instruments.
The input voltage range is 3.5V to 16V.
The efficiency can exceed 95%.
The standby current is 160μA per output at light loads.
The switching frequency can be up to 400kHz.
Yes, it supports 100% duty cycle for low dropout regulation.
It is available in a 16-pin SOIC package for surface mounting.