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TPS51116

DDR2 Switcher and LDO

Partnumber Manufacturer Quantity Availability
TPS51116 1 In Stock

Description and Introduction

DDR2 Switcher and LDO The TPS51116 is a synchronous buck controller designed for notebook power applications.  

### **Manufacturer:**  
Texas Instruments (TI)  

### **Descriptions:**  
- The TPS51116 is a high-efficiency, dual-output synchronous buck controller.  
- It supports Intel IMVP-6/6+ and AMD mobile CPU power requirements.  
- Features include adaptive on-time control, integrated MOSFET drivers, and power-good monitoring.  
- Operates from a 5V or 3.3V bias supply with a wide input voltage range (4.5V to 28V).  

### **Key Features:**  
- **Dual Outputs:** Supports core and I/O voltage rails.  
- **Adaptive On-Time Control:** Improves transient response.  
- **Integrated Drivers:** Reduces external component count.  
- **Programmable Switching Frequency:** 200kHz to 1MHz.  
- **Power-Good (PG) Monitoring:** Ensures stable output voltages.  
- **Current Balancing:** For multi-phase operation.  
- **Protection Features:** Overcurrent, overvoltage, and undervoltage lockout (UVLO).  

For detailed specifications, refer to the official Texas Instruments datasheet.

Application Scenarios & Design Considerations

DDR2 Switcher and LDO

Alternative Part Number

  • ISL6227 --: Dual-output DDR memory power controller with integrated LDO, functionally similar to the TPS51116 for DDR termination and VDDQ/VTT rails.
  • RT8206B --: DDR power supply controller providing VDDQ and VTT tracking outputs, a common drop-in style alternative for DDR memory power designs.
  • MAX8792 --: Single/dual step-down controller with tracking reference suitable for DDR termination supply, offering comparable functionality and pin-compatible design options.

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