Micrel MIC2198
The MIC2198 is a high-power 500kHz synchronous buck DC-to-DC controller housed in a small 4mm × 4mm MLF™ 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.| Part No. | MIC2198 |
|---|---|
| Datasheet | MIC2198 Download |
| Manufacturer |  Micrel |
| Description | 500kHz 4mm x 4mm Synchronous Buck Controller |
| Buy | Stock & Price |
GENERAL DESCRIPTION
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 × 4mm MLF™ package with a junction temperature range from –40°C to 125°C.FEATURES
● 4.5V to 32V input range● 4mm × 4mm MLF™ package
● 500kHz PWM operation
● >90% efficiency
● Output voltage adjustable down to 0.8V
● 20A output current capability
● Drives all N-Channel MOSFETs
● Logic controlled micropower shutdown
● Cycle-by-cycle current limiting
● Adjustable undervoltage lockout
● Frequency foldback overcurrent protection
APPLICATIONS
● Point-of-load DC-to-DC conversion from...
