Analog Devices, Inc. Synchronous Current-Mode Buck Controller with Constant On-time and 0.6 V Reference Voltage ADP1872ARMZ-0.6-R7

Description
Product Details The ADP1872/ADP1873 are versatile current-mode, synchronous step-down controllers that provide superior transient response, optimal stability, and current limit protection by using a constant on-time, pseudo-fixed frequency with a programmable current-sense gain, current-control scheme. In addition, these devices offer optimum performance at low duty cycles by utilizing valley current-mode control architecture. This allows the ADP1872/ ADP1873 to drive all N-channel power stages to regulate output voltages as low as 0.6 V. The ADP1873 is the power saving mode (PSM) version of the device and is capable of pulse skipping to maintain output regulation while achieving improved system efficiency at light loads (see the Power Saving Mode (PSM) Version (ADP1873) section for more information). Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1872/ADP1873 are well suited for a wide range of applications. These ICs not only operate from a 2.75 V to 5.5 V bias supply, but also can accept a power input as high as 20 V. In addition, an internally fixed soft start period is included to limit input in-rush current from the input supply during startup and to provide reverse current protection during soft start for a pre-charged output. The low-side current-sense, current-gain scheme and integration of a boost diode, along with the PSM/forced pulse-width modulation (PWM) option, reduce the external part count and improve efficiency. The ADP1872/ADP1873 operate over the −40°C to +125°C junction temperature range and are available in a 10-lead MSOP. Applications Telecom and networking systems Mid to High End servers Set-top boxes DSP core power supplies
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Suppliers

Company
Product
Description
Supplier Links
Norwood, MA, USA
Synchronous Current-Mode Buck Controller with Constant On-time and 0.6 V Reference Voltage
ADP1872ARMZ-0.6-R7
Synchronous Current-Mode Buck Controller with Constant On-time and 0.6 V Reference Voltage ADP1872ARMZ-0.6-R7
Product Details The ADP1872/ADP1873 are versatile current-mode, synchronous step-down controllers that provide superior transient response, optimal stability, and current limit protection by using a constant on-time, pseudo-fixed frequency with a programmable current-sense gain, current-control scheme. In addition, these devices offer optimum performance at low duty cycles by utilizing valley current-mode control architecture. This allows the ADP1872/ ADP1873 to drive all N-channel power stages to regulate output voltages as low as 0.6 V. The ADP1873 is the power saving mode (PSM) version of the device and is capable of pulse skipping to maintain output regulation while achieving improved system efficiency at light loads (see the Power Saving Mode (PSM) Version (ADP1873) section for more information). Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1872/ADP1873 are well suited for a wide range of applications. These ICs not only operate from a 2.75 V to 5.5 V bias supply, but also can accept a power input as high as 20 V. In addition, an internally fixed soft start period is included to limit input in-rush current from the input supply during startup and to provide reverse current protection during soft start for a pre-charged output. The low-side current-sense, current-gain scheme and integration of a boost diode, along with the PSM/forced pulse-width modulation (PWM) option, reduce the external part count and improve efficiency. The ADP1872/ADP1873 operate over the −40°C to +125°C junction temperature range and are available in a 10-lead MSOP. Applications Telecom and networking systems Mid to High End servers Set-top boxes DSP core power supplies

Product Details

The ADP1872/ADP1873 are versatile current-mode, synchronous step-down controllers that provide superior transient response, optimal stability, and current limit protection by using a constant on-time, pseudo-fixed frequency with a programmable current-sense gain, current-control scheme. In addition, these devices offer optimum performance at low duty cycles by utilizing valley current-mode control architecture. This allows the ADP1872/ ADP1873 to drive all N-channel power stages to regulate output voltages as low as 0.6 V.

The ADP1873 is the power saving mode (PSM) version of the device and is capable of pulse skipping to maintain output regulation while achieving improved system efficiency at light loads (see the Power Saving Mode (PSM) Version (ADP1873) section for more information).

Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1872/ADP1873 are well suited for a wide range of applications. These ICs not only operate from a 2.75 V to 5.5 V bias supply, but also can accept a power input as high as 20 V.

In addition, an internally fixed soft start period is included to limit input in-rush current from the input supply during startup and to provide reverse current protection during soft start for a pre-charged output. The low-side current-sense, current-gain scheme and integration of a boost diode, along with the PSM/forced pulse-width modulation (PWM) option, reduce the external part count and improve efficiency.

The ADP1872/ADP1873 operate over the −40°C to +125°C junction temperature range and are available in a 10-lead MSOP.

Applications

  • Telecom and networking systems
  • Mid to High End servers
  • Set-top boxes
  • DSP core power supplies
Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Controllers - ADP1872ARMZ-0.6-R7 - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Controllers
ADP1872ARMZ-0.6-R7
PMIC - Voltage Regulators - DC DC Switching Controllers ADP1872ARMZ-0.6-R7
IC REG CTRLR BUCK 10MSOP

IC REG CTRLR BUCK 10MSOP

Supplier's Site Datasheet
DC DC Switching Controllers - 505-ADP1872ARMZ-0.6-R7DKR-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
505-ADP1872ARMZ-0.6-R7DKR-ND
DC DC Switching Controllers 505-ADP1872ARMZ-0.6-R7DKR-ND
IC REG CTRLR BUCK 10MSOP

IC REG CTRLR BUCK 10MSOP

Supplier's Site Datasheet
DC DC Switching Controllers - 505-ADP1872ARMZ-0.6-R7CT-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
505-ADP1872ARMZ-0.6-R7CT-ND
DC DC Switching Controllers 505-ADP1872ARMZ-0.6-R7CT-ND
IC REG CTRLR BUCK 10MSOP

IC REG CTRLR BUCK 10MSOP

Supplier's Site Datasheet
DC DC Switching Controllers - 505-ADP1872ARMZ-0.6-R7TR-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
505-ADP1872ARMZ-0.6-R7TR-ND
DC DC Switching Controllers 505-ADP1872ARMZ-0.6-R7TR-ND
IC REG CTRLR BUCK 10MSOP

IC REG CTRLR BUCK 10MSOP

Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Controllers
ADP1872ARMZ-0.6-R7
Switching Controllers ADP1872ARMZ-0.6-R7
Switching Controllers Constant On-time & 0.6V Ref VTG

Switching Controllers Constant On-time & 0.6V Ref VTG

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers - ADP1872ARMZ-0.6-R7 - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers
ADP1872ARMZ-0.6-R7
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers ADP1872ARMZ-0.6-R7
IC REG CTRLR BUCK 10MSOP

IC REG CTRLR BUCK 10MSOP

Supplier's Site

Technical Specifications

  Analog Devices, Inc. Lingto Electronic Limited DigiKey VAST STOCK CO., LIMITED Shenzhen Shengyu Electronics Technology Limited
Product Category IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number ADP1872ARMZ-0.6-R7 ADP1872ARMZ-0.6-R7 505-ADP1872ARMZ-0.6-R7DKR-ND ADP1872ARMZ-0.6-R7 ADP1872ARMZ-0.6-R7
Product Name Synchronous Current-Mode Buck Controller with Constant On-time and 0.6 V Reference Voltage PMIC - Voltage Regulators - DC DC Switching Controllers DC DC Switching Controllers Switching Controllers Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers
Configuration / Function Buck Buck
Package Type Other; MSOP Other; 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Life Cycle Stage Production Active
IOUT 25 amps
VIN 2.75 to 5.5 volts 2.75 to 20 volts
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