LTC7150SEY#PBF
Brand: Analog Devices
The LTC7150SEY#PBF is Analog Devices' 20V, 20A synchronous step-down DC-DC regulator featuring second-generation Silent Switcher 2 technology. It integrates the hot-loop bypass capacitors inside the package to minimize EMI radiation, enabling clean, compact high-current power delivery without complex external filtering. Accepting 3.1V to 20V input with 0.6V to 5.5V adjustable output, programmable switching from 400kHz to 3MHz, current-mode control, and integrated power MOSFETs, it is the definitive high-current point-of-load solution for FPGA/ASIC core rails, server processors, and high-density computing power supplies. The BGA-42 package delivers low thermal resistance and short internal connections for exceptional power density.
Product Specifications
LTC7150SEY#PBF - ADI 20V 20A Synchronous Buck Regulator, Silent Switcher 2
Analog Devices (Linear Technology) - 20A Continuous, 3.1-20V Input, 400kHz-3MHz, BGA-42
MFR Part #: LTC7150SEY#PBFSuperb SKU: SUP-LTC7150SEY-PBF
In Stock - Ready to Ship
The LTC7150SEY#PBF is Analog Devices' 20V, 20A synchronous step-down DC-DC regulator featuring second-generation Silent Switcher 2 technology. It integrates the hot-loop bypass capacitors inside the package to minimize EMI radiation, enabling clean, compact high-current power delivery without complex external filtering. Accepting 3.1V to 20V input with 0.6V to 5.5V adjustable output, programmable switching from 400kHz to 3MHz, current-mode control, and integrated power MOSFETs, it is the definitive high-current point-of-load solution for FPGA/ASIC core rails, server processors, and high-density computing power supplies. The BGA-42 package delivers low thermal resistance and short internal connections for exceptional power density.
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Key Features
20A continuous output current — high-current point-of-load power for FPGA/ASIC core rails and server processors
Silent Switcher 2 technology — integrated bypass capacitors minimize the hot loop, delivering excellent EMI performance for CISPR 25 Class 5 compliance
3.1V to 20V input voltage — wide input range converts 12V or 5V rails down to low-voltage core supplies
0.6V to 5.5V adjustable output — supports FPGA core voltages (0.8V/1.0V/1.2V) and standard logic rails
400kHz to 3MHz programmable switching — higher frequency enables smaller inductors and capacitors for compact solutions
Current-mode control — fast transient response and cycle-by-cycle current limiting for robust operation
Integrated power MOSFETs — monolithic design reduces component count and board area
BGA-42 package — low thermal resistance and short internal connections for high power density
-40°C to +125°C junction temperature — industrial-grade operation for demanding environments
RoHS compliant — meets international environmental standards
Technical Specifications
| Manufacturer | Analog Devices Inc. (formerly Linear Technology) |
| Part Number | LTC7150SEY#PBF |
| Device Type | Synchronous Step-Down (Buck) DC-DC Regulator |
| Input Voltage | 3.1 V to 20 V |
| Output Voltage | 0.6 V to 5.5 V (adjustable) |
| Output Current | 20 A continuous |
| Switching Frequency | 400 kHz to 3 MHz (programmable) |
| Technology | Silent Switcher 2 (2nd generation, integrated bypass caps) |
| Control Mode | Current-mode |
| Integrated MOSFETs | Yes (monolithic high/low-side FETs) |
| Reference Voltage | 0.6 V |
| Operating Temperature | -40C to +125C (junction) |
| Package | BGA-42 (42-ball) |
| Mounting | Surface Mount (SMD) |
| RoHS | Compliant |
Product Details
Silent Switcher 2 — Integrated Low-EMI Design
The LTC7150S uses second-generation Silent Switcher 2 architecture, which integrates the high-frequency input bypass capacitors directly inside the package. This minimizes the hot-loop area — the primary source of EMI in switching regulators — by orders of magnitude.
Result: The LTC7150S achieves CISPR 25 Class 5 EMI compliance with minimal external filtering, reducing the need for bulky shield cans, ferrite beads, and multi-stage LC filters. This saves PCB area, BOM cost, and design time in noise-sensitive applications.
Current-Mode Control: Cycle-by-cycle current limiting and fast transient response keep FPGA core rails stable under rapid load steps, while the integrated MOSFETs eliminate external FET selection and drive complexity.
Key Applications
FPGA / ASIC Core Rails — Xilinx, Altera, and custom ASIC core voltage (0.8V/1.0V/1.2V) delivery at 20A
Server Processors — high-current point-of-load for compute and networking silicon
High-Density Computing — GPU accelerators, AI inference boards, HPC power delivery
Telecom & Networking — 12V to point-of-load conversion in switches, routers, base stations
Industrial Automation — motion controllers, vision systems, robotic power supplies
Test & Measurement — high-current programmable power for ATE and instrumentation
Why Source LTC7150SEY#PBF from Superb Automation?
Power Rail BOM — LTC7150S + inductors + capacitors + feedback resistors, one consolidated PO
High-Current PCB Design — 20A copper plane optimization, thermal via arrays, low-EMI layout
BGA-42 Assembly — 42-ball BGA reflow with X-ray void-free solder joint verification
EMI Verification — Pre-compliance EMI testing to confirm Silent Switcher 2 performance
25 Years Trusted — Electronic components + PCBA partner since 2000
Genuine Parts — Direct from authorized ADI channels, full lot traceability
Frequently Asked Questions
What is the LTC7150SEY#PBF used for?
A 20V/20A synchronous buck regulator for high-current point-of-load power. It powers FPGA/ASIC core rails, server processors, and high-density computing supplies, converting 12V or 5V rails down to 0.6-5.5V at up to 20A.
What is Silent Switcher 2 technology?
Second-generation low-EMI switching regulator architecture from ADI. It integrates the hot-loop bypass capacitors inside the package, minimizing the EMI radiating loop area. This enables CISPR 25 Class 5 compliance with minimal external filtering.
What input voltage range does it accept?
3.1V to 20V input, with 0.6V to 5.5V adjustable output at 20A. This covers 12V, 5V, and 3.3V input rails stepping down to low-voltage FPGA/ASIC core voltages.
How does switching frequency affect design?
The LTC7150S switches from 400kHz to 3MHz. Higher frequency reduces inductor and capacitor size for compact solutions; lower frequency improves efficiency. Designers trade off size vs. efficiency by selecting the appropriate frequency.
Can I parallel multiple LTC7150S for higher current?
Yes. The LTC7150S supports current-sharing/paralleling for applications exceeding 20A, or multi-rail designs. For very high-current FPGAs requiring 40A, 60A, or more, multiple LTC7150S devices can be paralleled. Consult the datasheet for the recommended paralleling configuration.