Datasheet Microchip MIC2198 — Datenblatt

MIC2198 Micrel, Inc. MIC2198
500kHz 4mm Г— 4mm Synchronous Buck Controller General Description Features The MIC2198 is a high-power 500kHz synchronous buck
DC-to-DC controller housed in a small 4mm Г— 4mm MLFв„ў
12-pin package. The MIC2198 operates from a wide 4.5V
to 32V input and can be programmed for output voltages
from 0.8V to 6V. The wide input voltage capability makes
the MIC2198 an ideal solution for point-of-load DC-to-DC
conversion in 5V, 12V and higher systems.
The 500kHz switching frequency allows the use of a small
inductor and small output capacitors. The current mode PWM
control along with the external COMP pin allows for ease of
stability compensation and fast transient response across a
wide range of applications.
An all N-Channel synchronous architecture and powerful
output drivers allow up to 20A of output current capability.
For higher efficiency at higher input voltages, refer to the
300kHz MIC2199.
The MIC2198 is available in a 12-pin 4mm Г— 4mm MLFв„ў
package with a junction temperature range from –40°C to
125В°C. 4.5V to 32V input range
4mm Г— 4mm MLFв„ў package
500kHz PWM operation
>90% efп¬Ѓciency …