Common step-down regulators support current sharing, a technique where multiple regulators contribute an equal amount of output current towards a common load. Therefore, efficiency losses aside, each converter consumes the same amount of input power. For example, in the dual regulator configuration shown, if input two has 12W available and input one has 3W available, undercurrent sharing, input two is also limited to 3W. As a result, the maximum output power is just 6W, two times the power of the least powerful input supply. Again, efficiency losses have been excluded for simplicity. If the load requires more than 6W, common current sharing is unable to tap the additional power available on input two. The LTM8026 with its adjustable current limit provides a solution. Each LTM8026 can be programmed with a different maximum current limit by applying an appropriate voltage to the control pin. When each current limit is set to take full advantage of available power on its own input supply, this technique is known as asymmetric power sharing which results in a greater output power rail. Returning to a previous example, the LTM8026 fed by input two can now accept the full 12W available to support the load. Therefore, a maximum output power of 15W is supported by asymmetric power sharing. How much power each input supply contributes to the common output rail is fully controlled by the designer. Providing an easy way to make the most efficient use of available power for the load.