MAX15112
高效、12A、电流模式同步整流降压转换器，内置开关
尺寸最小(2mm x 3mm)的12A、DC-DC转换器方案，内置MOSFET
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The MAX15112 high-efficiency, current-mode step-down regulator with integrated power switches operates from 2.7V to 5.5V and delivers up to 12A of output current in a small 2mm x 3mm package. The MAX15112 offers excellent efficiency with skip mode capability at light-load conditions, yet provides unmatched efficiency under heavy load conditions. The combination of small size and high efficiency makes this device suitable for both portable and nonportable applications.The MAX15112 utilizes a current-mode control architecture with a high-gain transconductance error amplifier, which allows a simple compensation scheme and enables a cycle-by-cycle current limit with fast response to line and load transients. A factory-trimmed switching frequency of 1MHz (PWM operation) allows for a compact, all-ceramic capacitor design.
Integrated switches with low on-resistance ensure high efficiency at heavy loads while minimizing critical inductances. The MAX15112’s simple layout and footprint assure first-pass success in new designs.
Other features of the MAX15112 include a capacitor-programmable soft-start to reduce inrush current, safe startup into a prebiased output, an enable input, and a power-good output for power sequencing.
The regulator is available in a 24-bump (4 x 6), 2.1mm x 3.05mm WLP package, and is fully specified over the -40°C to +85°C extended temperature range.
关键特性
- Continuous 12A Output Current
- ±1% Feedback Accuracy Over Load, Line, and Temperature
- Operates from 2.7V to 5.5V Supply
- Input Undervoltage Lockout
- Adjustable Output Range from 0.6V Up to 0.94 x VIN
- Programmable Soft-Start
- Factory-Trimmed 1MHz Switching Frequency
- Stable with Low-ESR Ceramic Output Capacitors
- Safe-Startup into a Prebiased Output
- External Reference Input
- Selectable Skip Mode Option for Improved Efficiency at Light Loads
- Enable Input/PGOOD Output Allows Sequencing
- Remote Ground Sense for Improved Accuracy
- Thermal and Overcurrent Protection
- Tiny 2.10mm x 3.05mm, 24-Bump WLP Package
应用
- 基站
- DDR存储器
- 分布式供电系统
- 笔记本电脑
- 线性稳压器的前置稳压
- 服务器
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