ADP2381 Series

20 V, 6 A Synchronous Step-Down Regulator with Low-Side Driver

Catalog

20 V, 6 A Synchronous Step-Down Regulator with Low-Side Driver

Part	Outputs and Type	Outputs and Type	Current - Output	Main Purpose	Frequency - Switching	Utilized IC / Part	Regulator Topology	Supplied Contents	Board Type	Voltage - Input [Min]	Voltage - Input [Max]	Voltage - Output	Supplier Device Package	Number of Outputs	Function	Package / Case [custom]	Package / Case	Package / Case [custom]	Synchronous Rectifier	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Min/Fixed)	Output Type	Voltage - Output (Max) [Max]	Topology	Voltage - Input (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Mounting Type	Output Configuration
Analog Devices ADP2381-EVALZ	Non-Isolated	1	6 A	DC/DC Step Down	500 kHz	ADP2381	Buck	Board(s)	Fully Populated	4.5 V	20 V	3.3 V
Analog Devices ADP2381AREZ-R7			6 A										16-TSSOP-EP	1	Step-Down	0.173 "	16-TSSOP Exposed Pad	4.4 mm		4.5 V	-40 °C	125 ¯C	0.6 V	Adjustable	18 V	Buck	20 V	1.4 MHz	250 kHz	Surface Mount	Positive

Catalog

20 V, 6 A Synchronous Step-Down Regulator with Low-Side Driver

Key Features

• Input voltage: 4.5 V to 20 V

• Integrated 44 mΩ high-side MOSFET

• 0.6 V ±1% reference voltage over temperature

• Continuous output current:

• 6 A

• Programmable switching frequency:250 kHz to 1.4 MHz

• Synchronizes to external clock: 250 kHz to 1.4 MHz

• 180° out-of-phase synchronization

• Programmable UVLO

• Power-good output

• External compensation

• Internal soft start with external adjustable option

• Startup into a precharged output

• Supported by ADIsimPower design tool

Description

The ADP2381 is a current mode control, synchronous, step-down, dc-to-dc regulator. It integrates a 44 mΩ power MOSFET and a low-side driver to provide a high efficiency solution. The ADP2381 runs from an input voltage of 4.5 V to 20 V and can deliver 6 A of output current. The output voltage can be adjusted to 0.6 V to 90% of the input voltage. The switching frequency of the ADP2381 can be programmed from 250 kHz to 1.4 MHz or fixed at 290 kHz or 550 kHz. The synchronization function allows the switching frequency to be synchronized to an external clock to minimize system noise.External compensation and an adjustable soft start provide design flexibility. The power-good output provides simple and reliable power sequencing. Additional features include programmable undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown (TSD).The ADP2381 operates over the −40°C to +125°C junction temperature range and is available in a 16-lead TSSOP_EP package.APPLICATIONSCommunication infrastructureNetworking and serversIndustrial and instrumentationHealthcare and medicalIntermediate power rail conversionDC-to-DC point of load application