ADP5051
PRODUCTIONIntegrated Power Solution with Quad Buck Regulators, Supervisory, and I2C Interface
- Part Models
- 1
- 1ku List Price
- Starting From $6.22
Overview
- Wide input voltage range: 4.5 V to 15.0 V
- ±1.5% output accuracy over full temperature range
- Adjustable/fixed output options via factory fuse or I2C interface
- I2C interface with interrupt on fault conditions
- Power regulation
Channel 1 and Channel 2: programmable 1.2 A/2.5 A/4 A sync buck regulators with low-side FET driver
Channel 3 and Channel 4: 1.2 A sync buck regulators
- 250 kHz to 1.4 MHz adjustable switching frequency
- Single 8 A output (Channel 1 and Channel 2 in parallel)
- Dynamic voltage scaling (DVS) for Channel 1 and Channel 4
- Precision enable with 0.8 V accurate threshold
- Programmable phase shift in 90° steps
- Individual channel FPWM/PSM selection
- Frequency synchronization input or output
- See data sheet for additional features
The ADP5051 combines four high performance buck regulators, and a supervisory circuit with a voltage monitor, watchdog, and manual reset in a 48-lead LFCSP package that meets demanding performance and board space requirements. The device enables direct connection to high input voltages up to 15.0 V with no preregulators.
Channel 1 and Channel 2 integrate high-side power MOSFET and low-side MOSFET drivers. In low-side power devices, use external NFETs to achieve an efficiency optimized solution and deliver a programmable output current of 1.2 A, 2.5 A, or 4 A.
Combining Channel 1 and Channel 2 in a parallel configuration provides a single output with up to 8 A of current. Channel 3 and Channel 4 integrate both high-side and low-side MOSFETs to deliver an output current of 1.2 A.
The ADP5051 supervisory circuits monitor voltage level. The watchdog timer generates a reset when the WDI does not toggle within a preset timeout period. Select manual reset functionality via the processor reset mode or system power on/off switch mode.
The optional I2C interface offers flexible configurations, including adjustable and fixed output voltage, junction temperature overheat warning, low input voltage detection, and dynamic voltage scaling.
APPLICATIONS
- Small cell base stations
- FPGA and processor applications
- Security and surveillance
- Medical applications
Documentation
Video 1
Brochure 1
Analog Dialogue 1
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 |
|---|---|---|---|
| ADP5051ACPZ-R7 | 48-Lead LFCSP (7mm x 7mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 6, 2014 - 14_0135 Assembly and Test Transfer of AD7173-8, AD7175-8 in 6x6 mm and ADP5051, ADP5053 in 7x7 mm LFCSP to StatsChipPac China |
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| ADP5051ACPZ-R7 | PRODUCTION | |
|
Nov 12, 2013 - 13_0232 Assembly and Test Transfer of Select 6x6 and 7x7mm LFCSP Products to STATS ChipPAC China |
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| ADP5051ACPZ-R7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- ADP5051
ADP505x Buck Regulator Design Tool
Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.
Open ToolLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
ADP5051 Evaluation Board
Resources
ADP5051 Evaluation Board