sc1470 Semtech Corporation, sc1470 Datasheet - Page 4

• Manufacturer Part Number: sc1470
• Description: Synchronous Buck Pseudo Fixed Frequency Power Supply Controller
• Manufacturer: Semtech Corporation

Test Conditions: V
Notes:
(1) 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.
(2) 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.
(3) clks = switching cycles.
(4) Guaranteed by design. See Shoot-Through Delay Timing Diagram.
(5) Semtech’s SmartDriver
At this point, an additional pullup device is activated, reducing the resistance to 2 (typ.). This negates the need for
an external gate or boost resistor.
POWER MANAGEMENT
Electrical Characteristics (Cont.)
P
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www.semtech.com
SC1470
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