MIC22700 Series

1MHz 7A Synchronous Buck Regulator

Catalog

1MHz 7A Synchronous Buck Regulator

Part	Synchronous Rectifier	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Supplier Device Package	Frequency - Switching	Function	Current - Output	Number of Outputs	Topology	Output Configuration	Mounting Type	Output Type	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Voltage - Input (Max) [Max]
Microchip Technology MIC22700YML-TR		5.5 V	0.7 V	24-MLF® (4x4)	1 MHz	Step-Down	7 A	1	Buck	Positive	Surface Mount	Adjustable	2.6 V	-40 °C	125 ¯C	24-MLF® 24-VFQFN Exposed Pad	5.5 V

Catalog

1MHz 7A Synchronous Buck Regulator

Key Features

• * Input voltage range: 2.6V to 5.5V

• * Output voltage adjustable down to 0.7V

• * Output current up to 7A

• * Full sequencing and tracking capability

• * Power on Reset/Power Good

• * Efficiency >95% across a broad load range

• * Easy RC compensation

• * 100% maximum duty cycle

• * Fully integrated MOSFET switches

• * Micropower shutdown

• * Thermal shutdown and current limit protection

• * -40°C to +125°C junction temperature range

Description

The MIC22700 is a high efficiency, 7A Integrated switch synchronous buck (step-down) regulator. The MIC22700 is optimized for highest efficiency. The device achieves more than 95% efficiency while still switching at 1MHz over a broad range. The device works with a small 1µH inductor and down to 47µF output capacitor. The ultra-high speed control loop keeps the output voltage within regulation even under extreme transient load swings commonly found in FPGAs and low voltage ASICs. The output voltage can be adjusted down to 0.7V to address all low voltage power needs. A full range of sequencing and tracking options is available with the MIC22700. The Enable/Delay pin combined with the Power Good/POR pin allows multiple outputs to be sequenced in any way during turn-on and turn-off. The RC (Ramp Control™) pin allows the device to be connected to another product in the MIC22xxx and/or MIC68xxx family, to keep the output voltages within a certain ∆V on start up.