Microchip | MIC2199YML-TR

The MIC2199YML TR is a high power 300kHz synchronous buck DC-to-DC controller housed in a small 4 mm x 4 mm MLF™ 12-lead package. The MIC2199 operates from a wide 4.5 V to 32 V input and can be programmed for output voltages from 0.8 V to 6 V. The wide input voltage capability makes the MIC2199 an ideal solution for point-of-load DC-to-DC conversion in 5 V, 12 V, 24 V, and 28 V systems.

The 300 kHz 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.

Features:

• 4.5 V to 32 V input range
• 4 mm x 4 mm MLF™ package
• 300 kHz PWM operation
• 95% efficiency
• Output voltage adjustable down to 0.8 V
• 20 A output current capability
• rives 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 5 V, 12 V, 24 V, 28 V supplies
• Telecom equipment
• Wireless modems
• Servers
• Base stations