MPS > DC/DC (Step-Down) Synchronous Switcher > MP2305  

Product

MP2305 

Product Info

2A, 23V Synchronous Rectified Step-Down Converter

Description

The MP2305 is a monolithic synchronous buck regulator. The device integrates 130mΩ MOSFETS that provide 2A continuous load current over a wide operating input voltage of 4.75V to 23V. Current mode control provides fast transient response and cycle-by-cycle current limit.  An adjustable soft-start prevents inrush current at turn-on. Shutdown mode drops the supply current to 1μA.  This device, available in an 8-pin SOIC package, provides a very compact system solution with minimal reliance on external components.

Features

• 2A Output Current
• Wide 4.75V to 23V Operating Input Range
• Integrated 130mΩ Power MOSFET Switches
• Output Adjustable from 0.923V to 20V
• Up to 93% Efficiency
• Programmable Soft-Start
• Stable with Low ESR Ceramic Output Capacitors
• Fixed 340kHz Frequency
• Cycle-by-Cycle Over Current Protection
• Input Under Voltage Lockout

Typical Application

 

Efficiency Curve

 

Vin (Min) (V)

4.75 

Vin (Max) (V)

23 

Iout (Max) (A)

Isw Limit (Typ) (A)

3.4 

Iq (Typ) (mA)

1.3 

Vfb (V)

0.92 

Freq 1 (kHz)

340 

Freq 2 (kHz)

 

Soft Start

External 

Package 1

SOIC8 

Package 2

 

Datasheet Download

Click here to download datasheet 

Eval Board Download

EV2305DS-00A

App Note

 

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Notes

 
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