LT7171/LT7171-1 Series

20A, 16V, Single- or Dual Phase, Silent Switcher Step-Down Regulators with Digital Power System Management

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

20A, 16V, Single- or Dual Phase, Silent Switcher Step-Down Regulators with Digital Power System Management

Part	Topology	Current - Output	Function	Voltage - Output (Min/Fixed) [Min]	Mounting Type	Frequency - Switching [Max]	Frequency - Switching [Min]	Voltage - Output (Max) [Max]	Output Type	Voltage - Input (Max) [Max]	Output Configuration	Package / Case	Supplier Device Package	Voltage - Input (Min)	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs
Analog Devices Inc./Maxim Integrated LT7171RV#TRMPBF	Buck	20 A	Step-Down	0.4 V	Surface Mount	4 MHz	400 kHz	5.5 V	Programmable	16 V	Positive	30-PowerTFQFN	30-LQFN (3.5x4)	1.5 V 2.9 V	-40 °C	150 °C	1
Analog Devices Inc./Maxim Integrated LT7171RV-1#TRPBF	Buck	20 A	Step-Down	0.4 V	Surface Mount	4 MHz	400 kHz	5.5 V	Programmable	16 V	Positive	30-PowerTFQFN	30-LQFN (3.5x4)	1.5 V 2.9 V	-40 °C	150 °C	1
Analog Devices Inc./Maxim Integrated LT7171RV#TRPBF	Buck	20 A	Step-Down	0.4 V	Surface Mount	4 MHz	400 kHz	5.5 V	Programmable	16 V	Positive	30-PowerTFQFN	30-LQFN (3.5x4)	1.5 V 2.9 V	-40 °C	150 °C	1
Analog Devices Inc./Maxim Integrated LT7171RV-1#TRMPBF	Buck	20 A	Step-Down	0.4 V	Surface Mount	4 MHz	400 kHz	5.5 V	Programmable	16 V	Positive	30-PowerTFQFN	30-LQFN (3.5x4)	1.5 V 2.9 V	-40 °C	150 °C	1

Catalog

20A, 16V, Single- or Dual Phase, Silent Switcher Step-Down Regulators with Digital Power System Management

Description

The LT7171/LT7171-1 are monolithic PolyPhase DC/DC synchronous step-down regulators that deliver up to 20A of continuous output current. The LT7171-1 option has two switching phases that are connected to two inductors to drive a single-regulated output supply. The quick, clean, low-overshoot switching edges deliver high efficiency while minimizing electromagnetic interference (EMI) emissions. The I2C-based PMBus 1.3-compliant serial interface enables control of device functions while providing telemetry information for system monitoring. The LT7171/LT7171-1 are supported by the LTpowerPlay®graphical user interface (GUI) tool.The controlled on-time valley current-mode control with 25ns typical minimum on-time enables a high switching frequency (fSW) at a low output voltage (VOUT) with excellent transient response in a small overall solution size.VOUT, fSW, and phase are selectable using external configuration resistors. Settings can also be set via the PMBus interface or stored in the on-chip, three times programmable nonvolatile memory (NVM).The LT7171/LT7171-1 use forced-continuous switching operation.APPLICATIONSCommunications, Storage, and Industrial SystemsData Center and Solid-State Drives