MAX15109
High-Efficiency, 8A, Current-Mode Synchronous Step-Down Switching Regulator with VID Control
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Smallest (2mm x 2.5mm), 8A, DC-DC Solution with Integrated MOSFETs in the Market
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Features
- Continuous 8A Output Current Over Temperature
- Efficiency Over 90%
- ±1% Accuracy Over Load, Line, and Temperature
- Operate from a 2.7V to 5.5V Supply
- VID Control Inputs for Selecting Output Voltage
- Programmable Slew-Rate Control
- Safe Startup into Prebiased Output
- 1MHz Switching Frequency
- Stable with Low-ESR Ceramic Output Capacitors
- Enable Input and Power-Good Output for Power-Supply Sequencing
- Cycle-by-Cycle Overcurrent Protection Faults
- Fully Protected Against Overcurrent and Overtemperature
- Input Undervoltage Lockout
- 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package
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The MAX15109 high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches deliver up to 8A of output current. This regulator operates from 2.7V to 5.5V and provides four output voltages using two VID control inputs.
This IC utilizes a current-mode control architecture with a high gain transconductance error amplifier. The current-mode control architecture facilitates easy compensation design and ensures cycle-by-cycle current limit with fast response to line and load transients.
The low RDS(ON) integrated switches ensure high efficiency at heavy loads while minimizing critical inductance, making the layout design a much simpler task with respect to discrete solutions. The high switching frequency (1MHz), along with the PWM current-mode architecture allows for a compact, all ceramic capacitor design.
The IC features a capacitor-programmable slew-rate control to reduce input current at the startup and when the output changes state under VID control. Internal control circuitry ensures safe-startup into a prebiased output. Power sequencing is controlled with the enable input and power-good output.
The IC is available in a 20-bump (4 x 5 array), 2.5mm x 2mm, WLP package and is fully specified over the -40°C to +85°C temperature range.
Applications
- DDR Memory
- Distributed Power Systems
- Notebook Power
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MAX15109
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Software & Part Ecosystem
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