TPS53511RGTR Switching Voltage Regulators 1.5A SD Reg W/ Intg MOSFETs
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | Switching Voltage Regulators |
| Mounting Style: | SMD/SMT |
| Package / Case: | VQFN-16 |
| Topology: | Buck |
| Output Voltage: | 750 mV to 5 V |
| Output Current: | 1.5 A |
| Number of Outputs: | 1 Output |
| Input Voltage, Min: | 4.5 V |
| Input Voltage, Max: | 18 V |
| Quiescent Current: | 10 uA |
| Switching Frequency: | 700 kHz |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 85 C |
| Series: | TPS53511 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Brand: | Texas Instruments |
| Input Voltage: | 4.5 V to 18 V |
| Load Regulation: | 100 mV |
| Moisture Sensitive: | Yes |
| Operating Supply Current: | 1.3 mA |
| Product: | Voltage Regulators |
| Product Type: | Switching Voltage Regulators |
| Factory Pack Quantity: | 3000 |
| Subcategory: | PMIC - Power Management ICs |
| Tradename: | SWIFT |
| Type: | Step-Down Regulator |
| Part # Aliases: | HPA02165RGTR |
| Unit Weight: | 0.001623 oz |
♠ 4.5-V to 18-V Input, 1.5-A Step-Down Regulator with Integrated Switcher
The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the DCAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.
The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports prebiased soft start. The TPS53511 is available in a 16- pin QFN package, and is designed to operate from –40°C to 85°C.
• Continuous 1.5-A output current
• 4.5-V to 18-V supply voltage range
• 2-V to 18-V conversion voltage range
• DCAP2™ mode control enables fast transient response
• Low output ripple and support all MLCC output capacitor
• Skip mode for light load control
• Highly efficient integrated FETs optimized for lower duty cycle applications
• High efficiency, less than 10-µA supply current at shutdown
• Adjustable soft-start time
• Support pre-biased soft start
• 700-kHz switching frequency
• Cycle-by-cycle overcurrent limit
• Open-drain power-good indication
• Internal bootstrap switch
• Small 3-mm × 3-mm, 16-pin QFN (RGT) package
• Points-of-load for server
• Distributed non-isolated DC-DC converters for computing power system
