SC2308AEVB datasheet(14/17 Pages) SEMTECH

Part #	SC2308AEVB

Description	600kHz Step-Up Switching Regulator with 2.2A, 45V Switch

PDF	17 Pages

Scroll/Zoom	100%

Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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14 / 17 page

SC2308A

Applications Information (Continued)

GND

VIN

VOUT

pin1

Figure 9. Suggested PCB Layout for the SC2308A

Board Layout Considerations

In a boost converter, the main power switch, the rectifying

diode, and the output filter capacitor carry pulse currents

with high di/dt. For jitter-free operation, the size of the

loop formed by these components should be minimized.

The main power switch is integrated inside the SC2308A.

Therefore, the output capacitor should be connected close

to the device ground pin. Shortening the trace at the SW pin

reduces the parasitic trace inductance. This decreases volt-

age ringing at the SW node. The input capacitor should be

placed close to the input and the GND pins. Figure 9 shows

an example of external component placement around the

SC2308A.

SC2308AEVB Datasheet(PDF) 14 Page - Semtech Corporation