- Evaluation Tools
2.7V-5.5V,4A, High-Efficiency, Synchronous Step-Down Converter with Forced CCM in 2×2mm QFN
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The MP2174C is a monolithic, step-down, switch mode converter with built-in, internal power MOSFETs. It achieves 4A of continuous output current from a 2.7V to 5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.
The constant-on-time (COT) control scheme provides fast transient response and easy loop stabilization.
Fault condition protections include cyclebycycle current limit and thermal shutdown.
The MP2174C requires a minimal number of readily available, standard external components, and is available in an ultra-small QFN-12 (2mmx2mm) package.
The MP2174C is ideal for a wide range of applications, including PDAs, portable instruments, DVD drives, and small handheld devices.
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Features & Benefits
- Forced PWM Mode Operation
- Wide 2.7V to 5.5V Operating Input Range
- Output Voltage as Low as 0.6V
- 4A Output Current
- 35mΩ and 18mΩ Internal Power MOSFET
- Peak Efficiency Above 96%
- 1.1MHz Frequency
- 100% Duty Cycle in Dropout
- 0.5ms Internal Soft-Start Time
- EN and Power Good for Power Sequencing
- Auto-Discharge at Power-Off
- Short-Circuit Protection with Hiccup Mode
- Available in a QFN-12 (2mmx2mm) Package
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EV2174C-G-00A Evaluation Kit 4A, 5.5V, 1.1MHz Synchronous Step-Down Switcher Evaluation Board
The EV2174C-G-00A is used for demonstrating the performance of MPS’s MP2174C, a low voltage high switching frequency step-down switcher with built in power MOSFETs. MP2174C provides up to 4A highly efficient output with constant-on-time control for fast loop response.The output voltage can be regulated as low as 0.6V.
High power efficiency over a wide load range is achieved by scaling down the switching frequency at light load to reduce the switching related loss by constant on time control. Short circuit and thermal shutdown provides reliable, fault-tolerant operation.
MP2174C is available in QFN12 (2x2mm) package.