4

 2005 Semtech Corp.

www.semtech.com

SC470

POWER MANAGEMENT

Notes:

(1) Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.

(2) When the inductor is in continuous and discontinuous conduction mode, the output voltage will have a DC regulation level higher than the

error-comparator threshold by 50% of the ripple voltage. This voltage will vary slightly with load and VBAT.

(3) Using a current sense resistor, this measurement relates to PGND minus the voltage of the source on the low-side MOSFET. These values

guaranteed by the ILIM Source Current and Current Comparator Offset tests.

(4) clks = switching cycles.

Electrical Characteristics (Cont.)

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