MIC28512 Series

70V/2A Synchronous Buck Regulator w/Hyper Speed Control™

Catalog

70V/2A Synchronous Buck Regulator w/Hyper Speed Control™

Part	Number of Outputs	Mounting Type	Voltage - Input (Min)	Output Configuration	Topology	Synchronous Rectifier	Voltage - Output (Max)	Voltage - Output (Min/Fixed)	Current - Output	Package Name	Package Width	Package Length	Function	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Input (Max)	Package / Case	Frequency - Switching (Max)	Frequency - Switching (Min)	Output Type	Total Output Count	Non-Isolated Output Count	Supplied Contents	Board Type	Contents	Frequency - Switching	Utilized IC / Part	Regulator Topology	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Main Purpose
Microchip Technology MIC28512-1YFL-TR	1	Surface Mount	4.6 V	Positive	Buck	Yes	59.5 V	0.8 V	2 A	24-FCQFN	4 mm	3 mm	Step-Down	125 °C	-40 °C	70 V	24-VFQFN Exposed Pad	680 kHz	200 kHz	Adjustable
Microchip Technology MIC28512-1YFL-T5	1	Surface Mount	4.6 V	Positive	Buck	Yes	59.5 V	0.8 V	2 A	24-FCQFN	4 mm	3 mm	Step-Down	125 °C	-40 °C	70 V	24-VFQFN Exposed Pad	680 kHz	200 kHz	Adjustable
Microchip Technology MIC28512-2YFL-TR	1	Surface Mount	4.6 V	Positive	Buck	Yes	59.5 V	0.8 V	2 A	24-FCQFN	4 mm	3 mm	Step-Down	125 °C	-40 °C	70 V	24-VFQFN Exposed Pad	680 kHz	200 kHz	Adjustable
Microchip Technology MIC28512-2YFL-EV									2 A											Non-Isolated	1	1 count	Board(s)	Fully Populated	Board	300 kHz	MIC28512-2	Buck	70 V	4.6 V	DC/DC Step Down
Microchip Technology MIC28512-1YFL-EV									2 A											Non-Isolated	1	1 count	Board(s)	Fully Populated	Board	300 kHz	MIC28512-1	Buck	70 V	4.6 V	DC/DC Step Down

Catalog

70V/2A Synchronous Buck Regulator w/Hyper Speed Control™

Description

The MIC28512 is a synchronous step-down switching regulator with internal power switches capable of providing up to 2A output current from a wide input supply range from 4.6V to 70V. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%. A constant switching frequency can be programmed from 200kHz to 680kHz. The Hyper Speed Control™ and HyperLight Load® architectures of the MIC28512 allow for high VIN (low VOUT) operation and ultra-fast transient response while reducing the required output capacitance and providing very good light load efficiency. The MIC28512 offers a full suite of protection features to ensure protections under fault conditions. These include under-voltage lockout to ensure proper operation under power sag conditions, internal soft-start to reduce inrush current, fold-back current limit, "hiccup" mode short-circuit protection, and thermal shutdown.