Product Descriptions
The MP2309 is a monolithic synchronous buck regulator. The device integrates 140mΩ MOSFETS that provide 1A 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.
Product Features
• 1A Output Current
• Wide 4.75V to 23V Operating Input Range
• Integrated 140mΩ Power MOSFET Switches
• Output Adjustable from 0.923V to 20V
• Up to 95 PERCENT Efficiency
• Programmable Soft-Start
• Stable with Low ESR Ceramic Output Capacitors
• Fixed 340KHz Frequency
• Cycle-by-Cycle Over Current Protection
• Input Under Voltage Lockout
Product Applications
• Distributed Power Systems
• Networking Systems
• FPGA, DSP, ASIC Power Supplies
• Green Electronics/ Appliances
• Notebook Computers
Product Specification
| Attribute | Attribute value |
| ANSM-Part# | ANSM-MP2309DS-LF-Z |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| Voltage Regulators - DC DC Switching Regulators | |
| Mfr | - |
| Series | - |
| Packaging | Tape & Reel (TR) |
| Part Status | Not For New Designs |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.75V |
| Voltage - Input (Max) | 23V |
| Voltage - Output (Min/Fixed) | 0.923V |
| Voltage - Output (Max) | 20V |
| Current - Output | 1A |
| Frequency - Switching | 340kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Base Product Number | MP2309 |
Product Photos
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