ADP1872

PRODUCTION

Synchronous Current-Mode Buck Controller with Constant On-time and 0.6 V Reference Voltage

Data Sheet (Rev. B) Product Selection Table

Part Models: 1
1ku List Price: Starting From $1.24

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Part Details

Power input voltage as low as 2.75 V to 20 V
Bias supply voltage range:
2.75 V to 5.5 V
Minimum output voltage: 0.6 V
0.6 V reference voltage with ±1.0% accuracy
Supports all N-channel MOSFET power stages
Available in 300 kHz, 600 KHz, and 1.0 MHz options

No Current Sense Resistor Required
Power saving mode (PSM) for light loads (ADP1873 only)
Resistor-programmable current-sense gain
Thermal overload protection
Short-circuit protection
See data sheet for additional features

Part Models: 1
1ku List Price: Starting From $1.24

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADP1872ARMZ-0.6-R7	10-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jan 26, 2016 - 15_0176 Assembly Transfer of Select 8/10L MSOP Products to Amkor Philippines
		PCN15_0176_Form Material_Report Detailed Change Description Qualification Results Summary Qualification Results Summary
ADP1872ARMZ-0.6-R7	PRODUCTION
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products
		PCN10_0006_Form Material_Report Qualification Report Summary Qualification Report Summary
ADP1872ARMZ-0.6-R7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

ADP187x Buck Designer Tool

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

Open Tool

Evaluation Kits

ADP1872 Evaluation Board

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Product Details

This describes the evaluation board hardware for the ADP1872/ADP1873 PWM buck controllers. The evaluation boards can be used to evaluate the ADP1872 or ADP1873 and application circuits using these ICs without requiring any additional software.

The ADP1872/ADP1873 evaluation boards employ a power input voltage (V_IN) that ranges between 2.75 V and 20 V and a bias supply voltage (V_DD) that ranges between 2.75 V and 5.5 V. Both inputs can be tied together for application input voltage conditions equal to or less than 5.5 V. The evaluation boards are available in two fixed-output voltage options (V_OUT = 1.8 V and V_OUT = 3.3 V), as well as in a 300 kHz, 600 kHz, or 1 MHz switching frequency (test trimmed in production). The ADP1872/ADP1873 evaluation boards offer an output accuracy of 2% over the full temperature range and provide a high input voltage (V_IN ± 10%) and a full-scale load current up to 15 A.

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. 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. Both devices are available in a small, 10-lead MSOP package and can operate over the −40°C to +125°C temperature range.