My Inquiry
My Account
Analog Devices Inc. ADP5051ACPZ-R7
- Part No.:
- ADP5051ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 48-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADP5051ACPZ-R7.pdf
- Description:
- IC REG CTRLR BUCK I2C 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,521
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADP5051ACPZ-R7 from Analog Devices is a quad-output integrated power management IC featuring four synchronous buck regulators (two 4 A programmable, two 1.2 A integrated-FET), supervisory circuitry (watchdog, reset, voltage monitoring), and an I²C interface - all in a single 48-lead LFCSP package. It supports direct 4.5 V to 15.0 V input, delivers ±1.5% output accuracy over −40°C to +125°C, and enables dynamic voltage scaling for FPGA and processor core rails.
For engineers reviewing the ADP5051ACPZ-R7 datasheet, ADP5051ACPZ-R7 pinout, ADP5051ACPZ-R7 application, or ADP5051ACPZ-R7 equivalent, key selection considerations include channel current programmability (1.2/2.5/4 A), I²C-configurable DVS and thermal warning thresholds, parallel operation capability (up to 8 A on Channel 1+2), and integrated fault reporting via open-drain INT and PWRGD pins.
Technical Context
The ADP5051ACPZ-R7 integrates two high-current buck channels (Ch1/Ch2) with external low-side FET drivers and two fully integrated 1.2 A buck channels (Ch3/Ch4), enabling flexible power tree partitioning. Its I²C interface supports real-time configuration of output voltages, DVS steps, overheat warning (105–125°C), and low-input-voltage detection (4.2–11.2 V).
Supervisory functions include a watchdog timer with four timeout options (4.8 ms to 25.6 s), manual reset with glitch rejection (280 ns), and precision enable inputs (0.806 V threshold). The device implements hiccup-mode OCP, latch-off protection on OVP/OCP, active output discharge, and programmable phase shift in 90° increments across channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 15.0 V - supports direct connection to unregulated intermediate bus without preregulators. |
| Output Accuracy | ±1.5% over −40°C to +125°C - ensures stable rail regulation across industrial temperature range. |
| Switching Frequency | 250 kHz to 1.4 MHz adjustable - allows optimization of efficiency vs. size using external RT resistor or SYNC pin. |
| Channel 1/2 Current | Programmable 1.2 A / 2.5 A / 4 A via RILIM - enables scalable power delivery with external low-side FETs. |
| Channel 3/4 Current | Fixed 1.2 A with integrated high- and low-side MOSFETs - simplifies design for auxiliary rails. |
| I²C Interface | Standard-mode (400 kHz) with interrupt-on-fault - enables runtime reconfiguration and health monitoring. |
| Thermal Protection | 150°C shutdown with 15°C hysteresis + 115°C overheat warning - supports predictive thermal management. |
Pinout & Package
ADP5051ACPZ-R7 is housed in a 48-lead, 7 mm × 7 mm, 0.85 mm profile LFCSP package with exposed thermal pad requiring solder connection to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN1–PVIN4 | Independent input supplies per channel | Enables separate input domains for noise isolation and sequencing control. |
| SW1–SW4 | Switching node outputs | Drive external inductors; require careful layout to minimize EMI and switching losses. |
| BST1–BST4 | Bootstrap supplies for high-side drivers | Must be decoupled with 0.1 µF ceramic capacitors referenced to respective SW pins. |
| DL1/DL2 | Low-side gate drivers | Interface directly to external NFET gates for Ch1/Ch2; sourcing/sinking resistances defined (10 Ω / 0.95 Ω). |
| FB1–FB4 | Feedback inputs for output voltage regulation | Accept 0.8 V reference; support adjustable (via resistor divider) or factory-fused fixed outputs. |
| EN1–EN4 | Individual channel enable inputs | 0.806 V precision threshold enables accurate power sequencing with external RC networks. |
| INT, PWRGD | Open-drain fault/status outputs | INT asserts on OCP/OVP/TSD; PWRGD monitors selected channels with 1 ms rise delay and 50 µs fall delay. |
| SCL/SDA | I²C serial interface | Supports bidirectional communication at 400 kHz; VDDIO-referenced logic (3.3 V typical). |
| WDI, MR, RSTO, VTH | Supervisory control and monitoring | WDI resets watchdog timer; MR initiates system reset; RSTO is open-drain reset output; VTH sets external reset threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Parallel Operation Support | Channels 1 and 2 can be configured in parallel to deliver up to 8 A with current balancing - reduces component count for high-current rails. |
| Dynamic Voltage Scaling (DVS) | Hardware- and I²C-controlled DVS on Channel 1 and Channel 4 enables real-time core voltage adjustment for power-aware processors and FPGAs. |
| Active Output Discharge | Integrated discharge switches (RDIS = 250 Ω) rapidly bleed stored energy from output capacitors during shutdown - prevents unintended wake-up or latch-up. |
| Programmable Phase Shift | 90°-step phase shifting across four channels minimizes input ripple current and reduces bulk capacitor requirements. |
| Fault Reporting Architecture | Dedicated INT pin with maskable status registers (overvoltage, overcurrent, thermal, UVLO) enables targeted diagnostics without polling. |
Applications
| Baseband Processing Unit | FPGA Core Power |
|---|---|
Use Scenario: Powering multi-core baseband processors in small cell base stations with strict thermal and sequencing constraints. IC Role / Device Role / Timing Role: ADP5051ACPZ-R7 provides four independent, sequenced rails (VDD_CORE, VDD_IO, VDD_DDR, VDD_AUX) with I²C-monitored DVS and thermal warning. Use Value: Enables adaptive frequency scaling under load while maintaining ±1.5% rail accuracy across −40°C to +125°C ambient. | Use Scenario: Delivering tightly regulated, low-noise power to Xilinx or Intel FPGA core, auxiliary, and transceiver banks. IC Role / Device Role / Timing Role: ADP5051ACPZ-R7 acts as primary PMIC with parallel Ch1+Ch2 for 8 A core rail, Ch3 for 1.2 A auxiliary, and Ch4 for 1.2 A transceiver supply. Use Value: Reduces BOM count by integrating four bucks + supervisor + I²C in one package; eliminates need for discrete reset IC and watchdog timer. |
| Medical Imaging Subsystem | Surveillance Video Analytics Platform |
Use Scenario: Powering high-speed ADCs, DSPs, and memory interfaces in portable ultrasound or MRI front-end modules. IC Role / Device Role / Timing Role: ADP5051ACPZ-R7 supplies clean, sequenced rails with active discharge and precise enable thresholds to meet medical safety and startup timing requirements. Use Value: Guarantees controlled power-up/down sequences and rapid fault response (INT assertion < 1 µs) critical for diagnostic reliability. | Use Scenario: Supporting AI-accelerated video analytics SoCs in edge surveillance cameras with thermal throttling and brownout resilience. IC Role / Device Role / Timing Role: ADP5051ACPZ-R7 delivers dynamic core voltage scaling (DVS) and monitors junction temperature (115°C warning, 150°C shutdown) to sustain performance under variable thermal loads. Use Value: Extends operational uptime by preventing thermal runaway and enabling graceful performance degradation before shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-buck power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADP5053ACPZ-R7 | No I²C interface; identical quad-buck + supervisory architecture and pinout. | Lacks runtime configurability (DVS, thermal warning, voltage monitoring); suitable for cost-sensitive, static-rail designs. | Select when I²C functionality is unnecessary and lower BOM cost is prioritized over field-upgradable settings. |
| TPS65270PWP | Three buck + one LDO; no integrated watchdog/reset; 40-pin HTSSOP package; max 3 A per buck. | Requires external reset IC and lacks thermal warning; limited to lower-current applications with simpler supervision needs. | Choose for legacy designs requiring TI-compatible footprint and where 3 A/channel suffices with minimal supervision. |
Compared with ADP5051ACPZ-R7, ADP5053ACPZ-R7 removes I²C but retains full pin compatibility and supervision features, while TPS65270PWP offers TI ecosystem alignment at the expense of integration density, current capability, and advanced thermal management.
Availability
ADP5051ACPZ-R7 is available at Aetrix Electronics and suitable for small cell base stations, FPGA and processor power delivery, and medical imaging subsystems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADP5051ACPZ-R7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADP5051ACPZ-R7 belongs to Analog Devices' integrated power solutions product line, designed specifically for space-constrained, high-reliability applications demanding multi-rail power management with intelligent supervision and configurability.
FAQ
What is the maximum total output current achievable with ADP5051ACPZ-R7?
The ADP5051ACPZ-R7 supports up to 8 A on a single output by paralleling Channel 1 and Channel 2 - both programmable for 1.2 A, 2.5 A, or 4 A operation. Channels 3 and 4 each deliver 1.2 A independently. Total theoretical output current across all four channels is 10.4 A, but thermal and PCB layout constraints limit practical simultaneous full-load operation.
Does ADP5051ACPZ-R7 support dynamic voltage scaling (DVS) on all four channels?
No, ADP5051ACPZ-R7 supports DVS only on Channel 1 and Channel 4, as confirmed in the General Description and Register Map (Register 5: DVS_CFG). Channels 2 and 3 do not have hardware or register support for DVS; their output voltages are fixed or adjustable via feedback divider but not dynamically modulated during operation.
Can ADP5051ACPZ-R7 operate without an I²C controller connected?
Yes, ADP5051ACPZ-R7 operates fully autonomously without I²C. Factory-fused output voltages, default DVS settings, and hardwired supervision thresholds (e.g., reset timeout, watchdog period) ensure functional operation. I²C is optional for runtime reconfiguration and enhanced monitoring - not required for basic power delivery.
What is the purpose of the DL1 and DL2 pins on ADP5051ACPZ-R7?
The DL1 and DL2 pins on ADP5051ACPZ-R7 are dedicated low-side gate drivers for external N-channel MOSFETs used with Channels 1 and 2. Unlike Channels 3 and 4, which integrate both high- and low-side FETs, Ch1/Ch2 rely on external low-side switches for higher efficiency and current scalability - DL1/DL2 provide fast, matched sourcing (10 Ω) and sinking (0.95 Ω) drive capability.
How does the ADP5051ACPZ-R7 handle thermal overload conditions?
The ADP5051ACPZ-R7 implements dual-level thermal protection: a 115°C overheat warning (I²C-readable, configurable hysteresis) for predictive throttling, and a 150°C thermal shutdown (TSD) with 15°C hysteresis that forces complete power-down. Both thresholds are silicon-trimmed and specified over −40°C to +125°C junction temperature range.
ADP5051ACPZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Type:
- Transistor Driver
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 4
- Output Phases:
- 4
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 15V
- Frequency - Switching:
- 250kHz ~ 1.4MHz
- Duty Cycle (Max):
- 50%
- Synchronous Rectifier:
- Yes
- Clock Sync:
- Yes
- Serial Interfaces:
- I2C
- Control Features:
- Enable, Frequency Control, Power Good, Soft Start, Watchdog
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-LFCSP (7x7)
ADP5051ACPZ-R7 FAQ
1.How can I place an order for ADP5051ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP5051ACPZ-R7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADP5051ACPZ-R7 reliable?
The price and inventory of ADP5051ACPZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP5051ACPZ-R7 is usually 5 days.
3.What payment methods are accepted for ADP5051ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP5051ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP5051ACPZ-R7?
ADP5051ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP5051ACPZ-R7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADP5051ACPZ-R7?
For technical support, including ADP5051ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP5051ACPZ-R7 requirements.
6.How does Aetrix verify that ADP5051ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADP5051ACPZ-R7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADP5051ACPZ-R7 meets industry standards.
7.What is the process for return or replacement of ADP5051ACPZ-R7?
All ADP5051ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP5051ACPZ-R7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADP5051ACPZ-R7 part is unused and in its original packaging.
Return procedure for ADP5051ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADP5051ACPZ-R7 Tags
-
UCC28C45DR
Texas Instruments
-
UCC28C40DR
Texas Instruments
-
UCC28C43DR
Texas Instruments
-
ZXSC410E6TA
Diodes Incorporated
-
LM3524DMX/NOPB
Texas Instruments
-
LM3489MMX/NOPB
Texas Instruments
-
MIC2102YML-TR
Microchip Technology
-
LM5148RGYR
Texas Instruments
-
TL598CDR
Texas Instruments
-
LM5155DSSR
Texas Instruments
-
LM25085MYX/NOPB
Texas Instruments
-
UCC2813DTR-0
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
