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Integrated Power Solution with Quad Low Noise Buck Regulators
Overview
Features and Benefits
- Input voltage range: 2.75 V to 6.0 V
- Programmable output voltage range: 0.5 V to 0.9 × PVINx
- Low output noise: ~25 μV rms when VOUT ≤ VREF
- ±1.0% output accuracy over full temperature range
- 500 kHz to 2.5 MHz adjustable switching frequency
- Power regulation
- Channel 1 and Channel 2: programmable 2 A/4 A sync buck regulators, or single 8 A output in parallel
- Channel 3 and Channel 4: programmable 1 A/2 A sync buck regulators, or single 4 A output in parallel
- Flexible parallel operation
- Precision enable with 0.6 V threshold
- Manual or sequence mode for power-up and power-down sequence
- Selective FPWM or PSM operation mode
- Precision undervoltage comparator
- Frequency synchronization input or output
- Active output discharge switch
- Power-good flag on selective channels via factory fuse
- UVLO, OVP, OCP, and TSD protection
- 40-lead, 6 mm × 6 mm LFCSP package
- −40°C to +125°C junction temperature
Product Details
The ADP5014 combines four high performance, low noise buck regulators in a 40-lead LFCSP package. Relying on its low output noise (~25 μV rms when VOUT ≤ VREF), the low noise buck regulator enables the powering up of the noise sensitive signal chain products.
All channels in the ADP5014 integrate high-side and low-side power metal-oxide semiconductor field effect transistors (MOSFET). Channel 1 and Channel 2 deliver a programmable output current of 2 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 deliver a programmable output current of 1 A or 2 A. Combining Channel 3 and Channel 4 in a parallel configuration can provide a single output with up to 4 A of current.
The ADP5014 features two enable modes. The manual mode has four individual precision enable pins to enable each regulator manually. Alternatively, the sequence mode has one grouped precision enable signal with programmable power-up and power-down delay timers on each rail for specific rail sequence requirements.
The switching frequency of the ADP5014 can be programmed or synchronized to an external clock from 500 kHz to 2.5 MHz.
The ADP5014 offers other key features like selective forced pulse width modulation (FPWM)/power saving mode (PSM), an undervoltage output (UVO), active output discharge, and a power-good flag. Other safety features include input undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP) and thermal shutdown (TSD).
Applications
- RF transceiver, high speed analog-to-digital converter (ADC)/digital-to-analog converter (DAC), mixed signal ASIC
- FPGA and processor applications
- Security and surveillance
- Medical applications
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Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation
Tools & Simulations
LTspice
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Models for the following parts are available in LTspice:
Design Tools
Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.
Reference Materials
Technical Articles (5)
Analog Dialogue
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Support & Discussions
ADP5014 Discussions
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
