Features and Benefits
- AEC-Q100 Qualified for Automotive Applications
- Silent Switcher®2 Architecture for Low EMI
- VIN Range: 3.1V to 20V
- VOUT Range: 0.6V to 5.5V
- Differential VOUT Remote Sense
- Adjustable Frequency: 400kHz to 3MHz
- PolyPhase® Operation: Up to 12 Phases
- Output Tracking and Soft-Start
- Reference Accuracy: 0.6V ±1% Over Temperature
- Current Mode Operation for Excellent Line and Load Transient Response
- Accurate 1.2V Run Pin Threshold
- Supports Forced Continuous/Discontinuous Modes
- 42-Lead 6mm × 5mm × 1.3mm BGA Package
The LTC7150S is a high efficiency monolithic synchronous buck regulator capable of delivering 20A to the load. It uses a phase lockable controlled on-time constant frequency, current mode architecture. PolyPhase operation allows multiple LTC7150S regulators to run out-of-phase, which reduces the amount of input and output capacitors required. The operating supply voltage range is from 3.1V to 20V.
The operating frequency is programmable from 400kHz to 3MHz with an external resistor. The high frequency capability allows the use of physically smaller inductor and capacitor sizes. For switching noise sensitive applications, the LTC7150S can be externally synchronized from 400kHz to 3MHz. The PHMODE pin allows the user control of the phase of the outgoing clock signal. The unique constant frequency/controlled on-time architecture is ideal for high step-down ratio applications that operate at high frequencies while demanding fast transient response. The LTC7150S uses second generation Silent Switcher technology including integrated bypass capacitors to deliver a highly efficient solution at high frequencies with excellent EMI performance.
- Server Power Applications
- Distributed Power Systems
- Point of Load Supply for ASIC, FPGA, DSP, µP, etc.
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Demonstration circuit 2411A is a high efficiency synchronous buck regulator with a 3.1V to 20V input range. It can supply 20A maximum load current at 1.2V output. The demo board features the LTC7150S regulator. No external MOSFETs nor external current sense resistor are required. It uses a phase-lockable controlled on-time constant-frequency, current mode architecture, ideal for high step-down ratio applications. The operating frequency is programmable from 400kHz to 3MHz with an external resistor (R5). The LTC7150S is housed in a 6mm × 5mm × 1.3mm 42-Lead BGA package.
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
To open the project file for this circuit:
Step 1: Download and install LTpowerCAD on your computer.
Step 2: Click on the link(s) in the section below to download part-specific project files.
Step 3: If the project file doesn't run, right-click the link and select "Save Target As." Then start the LTpowerCAD tool and open the project file by selecing "Open Project" from the "File" menu.
LTpowerCAD Project Files
Design tools for the following parts are available in LTpowerCAD:
Technical Articles (4)
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.