Analog Devices Inc. LT7171 PolyPhase DC/DC Step-Down Regulators
Analog Devices Inc. LT7171 PolyPhase DC/DC Step-Down Regulators can deliver up to 20A of continuous output current. The Analog Devices Inc. LT7171-1 variant utilizes two switching phases connected to two inductors to drive a single regulated output. The regulators' efficient operation minimizes electromagnetic interference (EMI) thanks to quick, clean, low-overshoot switching edges. Additionally, these regulators feature an I2C-based PMBus 1.3-compliant serial interface for device control and system monitoring telemetry. Management and configuration are facilitated through the LTpowerPlay® graphical user interface (GUI) tool.
Features
- Silent Switcher® architecture enables a compact, efficient, low EMI solution
- PMBus/I2C serial interface
- Telemetry readback includes VOUT, IOUT, VIN, Die temperature, and faults
- Programmable voltage, current limit, sequencing, soft start/stop, undervoltage and overvoltage, phase, frequency (up to 4MHz), and loop compensation
- Integrated three times programmable NVM
- Key parameters selectable by resistor
- 0.4V to 5.5V VOUT set point range
- ±0.25%, 0.6V ≤ VOUT ≤ 1.375V VOUT accuracy
- PolyPhase load sharing up to four devices
- Differential remote VOUT sense
- Fast transient response
- Wide VIN supply range down to 2.9V or 1.5V with EXTVCC
- Programmable and synchronizable from 400kHz to 4MHz
- 30-lead (3.5mm × 4mm) LQFN
Applications
- Communications, storage, and industrial systems
- Data centers and solid-state drives
TYPICAL APPLICATION
Related Products
Analog Devices Inc. EVAL-LT7171 Evaluation Boards
Designed to evaluate the LT7171/LT7171-1 monolithic PolyPhase DC/DC step-down regulators.
Publicado: 2024-06-24
| Actualizado: 2024-07-15