Topology | Buck Converter |
Input voltage | 4-90 V |
Output 1 | 12 V / 0.8 A |
The LTC®7138 is a high efficiency step-down DC/DC regulator with internal power switch that draws only 12μA typical DC supply current while maintaining a regulated output voltage at no load.
The LTC7138 can supply up to 400mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency and for reducing output ripple and component size. The LTC7138’s combination of Burst Mode® operation, integrated power switch, low quiescent current, and programmable peak current limit provides high efficiency over a broad range of load currents.
With its wide input range of 4V to 140V and programmable overvoltage lockout, the LTC7138 is a robust regulator suited for regulating from a wide variety of power sources. Additionally, the LTC7138 includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment. A feedback comparator output enables multiple LTC7138s to be connected in parallel for higher current applications.
The LTC7138 is available in a thermally enhanced high voltage-capable 16-lead MSE package with four missing pins.
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | ISAT,10% (A) | ISAT,30% (A) | IR,40K (A) | IRP,40K (A) | RDC max. (mΩ) | fres (MHz) | Size | Version | Samples | |
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7447709101 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | 100 | 3.1 | 3.8 | 2.5 | 3.2 | 110 | 4.3 | 1210 | Standard |
Order Code | Datasheet | Simulation | |
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7447709101 | SPEC |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | ISAT,10% (A) | ISAT,30% (A) | IR,40K (A) | IRP,40K (A) | RDC max. (mΩ) | fres (MHz) | Size | Version | Samples |
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