MP2910

Sync Buck PWM DC-DC and Linear Power Controller

Datasheet

Description

The MP2910 is a dual output with one synchronous buck PWM and one linear controller. The part is used to generate logic-supply voltages for PC based systems. MP2910 includes internal soft-start, frequency-compensation networks, power good signaling with specific sequence, and it comes all of the logic control, output adjustment, power monitoring and protection functions into a small footprint package. The part is operated at fixed 300 kHz frequency providing an optimum compromise between efficiency, external component size, and cost. The linear controller is implemented to drive an external MOSFET for regulation and it's adjustable by setting external resistors. Moreover the specific internal PG sequence and indicator is also implemented to conform to Intel?new platform requirement on FSB_VTT power plane. An adjustable over-current protection (OCP) is proposed to monitor the voltage drop across the RDS(ON) of the lower MOSFET for synchronous buck PWM DC-DC controller.

Features & Benefits

Operating with 5V or 12V Supply Voltage
Drives ALL Low Cost N-Channel MOSFETs
Voltage Mode PWM Control
300kHz Fixed Frequency Oscillator
Fast Transient Response: High speed GM Amplifier Full 0 to 100% Duty Ratio
Internal Soft-Start
Adaptive Non-Overlapping Gate Driver
Over-Current Fault Monitor on MOSFET, No Current Sense Resistor Required
Specific Power Good Indicator for Intel?Grantsdale FSB_VTT Power Sequence
Available in a SOIC-14 Package and a SOIC8E Package.

Active Part Numbers:

MP2910ES–Z MP2910ES–P MP2910ES–LF–Z MP2910ES–LF–P MP2910EN–Z MP2910EN–LF–Z

Evaluation Tools

5EV2910ES-00A Evaluation Kit V/12V Synchronous Buck PWM DC/DC and Linear Power Controller EV Board

The EV2910ES-00A is an evaluation board for the MP2910ES that is a dual output with one synchronous buck PWM and one linear controller. The part is used to generate logic-supply voltages for PC based systems.

This EV board can be turned on or shut down via a remote EN input that is referenced to ground. This input is compatible with popular logic devices.

This EV board also has power good indicator to conform to Intel® new platform requirement on FSB_VTT power plane. The PG port is pulled to ground when the output voltage is under 10% of its setting voltage.

$25.00
+ tax

Design Resources

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