Analog Devices Inc. LT7170/LT7170-1 Synchronous Step-Down Regulators

Analog Devices Inc. LT7170/LT7170-1 Synchronous Step-Down Regulators are 16V, single- or dual-phase, silent switcher regulators with digital power system management. These monolithic DC/DC step-down regulators deliver up to 20A of continuous output current. The LT7170/LT7170-1 incorporates the Silent Switcher^® architecture, enabling a compact, efficient, and low EMI solution. These regulators are supported by the LTpowerPlay^® Graphical User Interface (GUI) tool. Key features include a PMBus/I²C serial interface, differential remote V_OUT sense, and fast transient response. These regulators are available in 3.5mm x 4mm 24-lead LQFN package. Typical applications include communications, storage, and industrial systems.

Features

Silent Switcher^® architecture: enables a compact, efficient, and low EMI solution
PMBus/I²C serial interface
- Telemetry read-back includes V_OUT, I_OUT, V_IN, die temperature, and faults
- Programmable voltage, current limit, sequencing, soft start and 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 V_OUT set point range
±0.25%, 0.6V≤V_OUT≤1.375V V_OUT accuracy
Differential remote V_OUT sense
Fast transient response
Wide V_IN supply range (down to 2.9V or 1.5V with EXTV_CC)
Programmable and synchronizable (400kHz to 4MHz)
3.5mm x 4mm 24-lead LQFN package

Applications

Communications, storage, and industrial systems
Data-centers and solid-state-drives

Analog Devices Inc. LT7170/LT7170-1 Synchronous Step-Down Regulators

Features

Applications

Typical Application Circuits

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