Analog Devices, Inc. Synchronous Buck Controller with Constant On-Time and Valley Current Mode ADP1874ARQZ-1.0-R7

Description
Product Details The ADP1874/ADP1875 are versatile current mode, synchronous step-down controllers. They provide superior transient response, optimal stability, and current-limit protection by using a constant on-time, pseudo fixed frequency with a programmable current limit, current control scheme. In addition, these devices offer optimum performance at low duty cycles by using a valley, current mode control architecture. This allows the ADP1874/ADP1875 to drive all N-channel power stages to regulate output voltages to as low as 0.6 V. The ADP1875 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 ADP1875 Power Saving Mode (PSM) section for more information). Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1874/ADP1875 are well suited for a wide range of applications that require a single-input power supply range from 2.95 V to 20 V. Low voltage biasing is supplied via a 5 V internal low dropout regulator (LDO). In addition, soft start programmability is included to limit input inrush current from the input supply during startup and to provide reverse current protection during precharged output conditions. The low-side current sense, current gain scheme, and integration of a boost diode, along with the PSM/forced pulsewidth modulation (PWM) option, reduce the external part count and improve efficiency. The ADP1874/ADP1875 operate over the −40°C to +125°C junction temperature range and are available in a 16-lead QSOP package. 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 Buck Controller with Constant On-Time and Valley Current Mode
ADP1874ARQZ-1.0-R7
Synchronous Buck Controller with Constant On-Time and Valley Current Mode ADP1874ARQZ-1.0-R7
Product Details The ADP1874/ADP1875 are versatile current mode, synchronous step-down controllers. They provide superior transient response, optimal stability, and current-limit protection by using a constant on-time, pseudo fixed frequency with a programmable current limit, current control scheme. In addition, these devices offer optimum performance at low duty cycles by using a valley, current mode control architecture. This allows the ADP1874/ADP1875 to drive all N-channel power stages to regulate output voltages to as low as 0.6 V. The ADP1875 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 ADP1875 Power Saving Mode (PSM) section for more information). Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1874/ADP1875 are well suited for a wide range of applications that require a single-input power supply range from 2.95 V to 20 V. Low voltage biasing is supplied via a 5 V internal low dropout regulator (LDO). In addition, soft start programmability is included to limit input inrush current from the input supply during startup and to provide reverse current protection during precharged output conditions. The low-side current sense, current gain scheme, and integration of a boost diode, along with the PSM/forced pulsewidth modulation (PWM) option, reduce the external part count and improve efficiency. The ADP1874/ADP1875 operate over the −40°C to +125°C junction temperature range and are available in a 16-lead QSOP package. APPLICATIONS Telecom and networking systems Mid- to high-end servers Set-top boxes DSP core power supplies

Product Details

The ADP1874/ADP1875 are versatile current mode, synchronous step-down controllers. They provide superior transient response, optimal stability, and current-limit protection by using a constant on-time, pseudo fixed frequency with a programmable current limit, current control scheme. In addition, these devices offer optimum performance at low duty cycles by using a valley, current mode control architecture. This allows the ADP1874/ADP1875 to drive all N-channel power stages to regulate output voltages to as low as 0.6 V.

The ADP1875 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 ADP1875 Power Saving Mode (PSM) section for more information).

Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1874/ADP1875 are well suited for a wide range of applications that require a single-input power supply range from 2.95 V to 20 V. Low voltage biasing is supplied via a 5 V internal low dropout regulator (LDO).

In addition, soft start programmability is included to limit input inrush current from the input supply during startup and to provide reverse current protection during precharged output conditions. The low-side current sense, current gain scheme, and integration of a boost diode, along with the PSM/forced pulsewidth modulation (PWM) option, reduce the external part count and improve efficiency.

The ADP1874/ADP1875 operate over the −40°C to +125°C junction temperature range and are available in a 16-lead QSOP package.

APPLICATIONS

  • Telecom and networking systems
  • Mid- to high-end servers
  • Set-top boxes
  • DSP core power supplies
Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Controllers
ADP1874ARQZ-1.0-R7
Switching Controllers ADP1874ARQZ-1.0-R7
Switching Controllers Constant On-Time & Valley Crnt Mode

Switching Controllers Constant On-Time & Valley Crnt Mode

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Controllers - ADP1874ARQZ-1.0-R7 - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Controllers
ADP1874ARQZ-1.0-R7
PMIC - Voltage Regulators - DC DC Switching Controllers ADP1874ARQZ-1.0-R7
IC REG CTRLR BUCK 16QSOP

IC REG CTRLR BUCK 16QSOP

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers - ADP1874ARQZ-1.0-R7 - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers
ADP1874ARQZ-1.0-R7
Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers ADP1874ARQZ-1.0-R7
IC REG CTRLR BUCK 16QSOP

IC REG CTRLR BUCK 16QSOP

Supplier's Site
DC DC Switching Controllers - 505-ADP1874ARQZ-1.0-R7DKR-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
505-ADP1874ARQZ-1.0-R7DKR-ND
DC DC Switching Controllers 505-ADP1874ARQZ-1.0-R7DKR-ND
Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-QSOP

Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-QSOP

Supplier's Site Datasheet
DC DC Switching Controllers - 505-ADP1874ARQZ-1.0-R7TR-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
505-ADP1874ARQZ-1.0-R7TR-ND
DC DC Switching Controllers 505-ADP1874ARQZ-1.0-R7TR-ND
Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-QSOP

Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-QSOP

Supplier's Site Datasheet
DC DC Switching Controllers - 505-ADP1874ARQZ-1.0-R7CT-ND - DigiKey
Thief River Falls, MN, United States
DC DC Switching Controllers
505-ADP1874ARQZ-1.0-R7CT-ND
DC DC Switching Controllers 505-ADP1874ARQZ-1.0-R7CT-ND
Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-QSOP

Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-QSOP

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. VAST STOCK CO., LIMITED Lingto Electronic Limited Shenzhen Shengyu Electronics Technology Limited DigiKey
Product Category IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number ADP1874ARQZ-1.0-R7 ADP1874ARQZ-1.0-R7 ADP1874ARQZ-1.0-R7 ADP1874ARQZ-1.0-R7 505-ADP1874ARQZ-1.0-R7DKR-ND
Product Name Synchronous Buck Controller with Constant On-Time and Valley Current Mode Switching Controllers PMIC - Voltage Regulators - DC DC Switching Controllers Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers DC DC Switching Controllers
Configuration / Function Buck Buck
Package Type Other; QSOP SSOP SSOP; Other; 16-SSOP (0.154", 3.90mm Width)
Life Cycle Stage Production Active
IOUT 25 amps
VIN 2.95 to 20 volts 3.25 to 20 volts
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