MP2303

Product MP2303

Product Info 3A, 28V, 340KHz Synchronous Rectified Step-Down Converter Description The MP2303 is a monolithic synchronous buck regulator. The device

integrates power MOSFETS that provide 3A continuous load current over a

wide operating input voltage of 4.75V to 28V. Current mode control provides

fast transient response and cycle-by-cycle current limit. An adjustable

soft-start prevents inrush current at turn-on. In shutdown mode, the supply

current drops to 1μA. This device, available in 8-pin SOIC and 3x3 10-pin

QFN packages, provides a very compact system solution with minimal

reliance on external components.

Features ? 3A Output Current

? Wide 4.75V to 28V Operating Input Range

? Integrated Power MOSFET Switches

? Output Adjustable from 0.8V to 25V

? Up to 95% Efficiency

? Programmable Soft-Start

? Stable with Low ESR Ceramic Output Capacitors

? Fixed 340KHz Frequency

? Cycle-by-Cycle Over Current Protection

? Input Under Voltage Lockout

? Thermally Enhanced 8-Pin SOIC and 3x3 QFN10 Packages

Typical Application

Efficiency Curve

Vin (Min) (V) 4.75

Vin (Max) (V) 28

lout (Max) (A) 3.0

Isw Valley Limit (Typ)

6.3

(A)

Iq (Typ) (mA) 1.3

Vfb (V) 0.8

Freq 1 (kHz) 340

Freq 2 (kHz)

Soft Start External

Package 1 QFN10

Package 2 SOIC8E

Datasheet Download

Click here to download datasheet Eval Board Download EV2303DN-00A

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Notes