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Analog Devices Inc. ADP5301ACBZ-2-R7
- Part No.:
- ADP5301ACBZ-2-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 9-WFBGA, WLCSP
- Datasheet:
-
ADP5301ACBZ-2-R7.pdf
- Description:
- IC REG BCK PRG 50MA/500MA 9WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:8,488
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Product details
Overview
ADP5301ACBZ-2-R7 from Analog Devices is a high-efficiency, ultralow-quiescent-current step-down regulator in 9-ball WLCSP packaging, delivering up to 500 mA in PWM mode or 50 mA in hysteresis mode with 180 nA no-load IQ, ±1.5% output accuracy, and 2 MHz switching frequency. It serves as a keep-alive power supply in battery-powered gas/water meters and portable medical devices.
For engineers reviewing the ADP5301ACBZ-2-R7 datasheet, ADP5301ACBZ-2-R7 pinout, ADP5301ACBZ-2-R7 application, or ADP5301ACBZ-2-R7 equivalent, this page delivers verified technical context, real-world operating modes, validated package mapping, confirmed VID-based voltage selection, and manufacturer-confirmed alternative options for energy metering and ultra-low-power embedded systems.
Technical Context
The ADP5301ACBZ-2-R7 implements dual-mode buck regulation: hysteresis mode enables 180 nA quiescent current and 50 mA output with large ripple for standby operation, while PWM mode delivers 500 mA with low ripple and 2 MHz fixed-frequency switching. Mode selection is controlled via logic level on the SYNC/MODE pin.
It integrates factory-programmable VID configuration (RVID or fuse), internal 0.808 V feedback reference, UVLO (2.06 V rising threshold), overcurrent protection (1000 mA typical in PWM), thermal shutdown (142°C), and open-drain VOUTOK flag with 90% rise threshold and 40 µs response delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.15 V to 6.50 V startup; operates down to 2.00 V - supports single Li-ion, multi-alkaline/NiMH cells |
| Quiescent Current | 180 nA typical in hysteresis mode at no load - enables >10-year battery life in keep-alive applications |
| Output Current | Up to 500 mA in PWM mode; up to 50 mA in hysteresis mode - dual capability for active/standby system states |
| Output Voltage Accuracy | ±1.5% over −40°C to +125°C in PWM mode - ensures stable rail for precision analog or MCU cores |
| Switching Frequency | 2 MHz typical in PWM mode; synchronizable from 1.5 MHz to 2.5 MHz - reduces EMI and enables compact filter design |
| VOUTOK Flag Threshold | Rises at 90% of nominal VOUT with 3% hysteresis - provides reliable power-good signaling for system sequencing |
| Package | 9-ball, 1.65 mm × 1.87 mm WLCSP - ultra-small footprint for space-constrained portable and metering PCBs |
Pinout & Package
ADP5301ACBZ-2-R7 uses a 9-ball, 1.65 mm × 1.87 mm WLCSP package with bottom-side solder balls. Pin assignment follows standard top-view grid (A1–C3) and is fully validated per Analog Devices Rev. C datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Switching node output | Connects to external inductor; carries high di/dt PWM/hysteresis pulses; requires tight layout to minimize EMI |
| PVIN | Main power input | Accepts 2.15–6.50 V input; supplies internal bias and high-side FET; must be decoupled near ball |
| EN | Enable control input | Logic-high (>1.2 V) enables regulation; logic-low disables device and reduces current to ≤130 nA at 125°C |
| PGND | Power ground return | High-current return path for SW and PVIN; separate from AGND to avoid noise coupling into feedback |
| AGND | Analog ground reference | Reference for FB, VID, and internal bandgap; must be connected to clean ground plane near FB/VID |
| SYNC/MODE | Mode select & sync input | Logic high = PWM mode; logic low = hysteresis mode; also accepts 1.5–2.5 MHz external clock for synchronization |
| VOUTOK | Open-drain power-good flag | Active-high when VOUT ≥90% nominal; pulls low via internal 50 µA sink; requires external pull-up for MCU monitoring |
| FB | Feedback sensing input | Monitors output via direct connection to VOUT; internal 0.808 V reference enables precise regulation without external resistors |
| VID | Voltage ID configuration | Configures output voltage via external resistor to AGND (e.g., 11.8 kΩ → 1.2 V); factory-fused options available |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow IQ hysteresis mode | 180 nA typical no-load current enables >10-year operation on coin-cell batteries in metering applications |
| Dual-mode operation | Hardware-selectable hysteresis (low IQ, low IOUT) or PWM (high IOUT, low ripple) via single SYNC/MODE pin |
| Factory-programmable VID | Supports 16 discrete output voltages (0.8 V–5.0 V) via RVID or factory fuse - eliminates external feedback resistors |
| Integrated safety protections | UVLO (2.06 V rising), OCP (1000 mA PWM limit), TSD (142°C), and short-circuit foldback - ensures robust field operation |
| 100% duty cycle operation | Seamlessly transitions to direct conduction when VIN ≈ VOUT - maintains regulation during brownout without dropout |
| VOUTOK power-good flag | Monitors regulated output with 90% threshold and 40 µs rise delay - enables deterministic system power sequencing |
Applications
| Energy Metering | Portable Medical Devices |
|---|---|
Use Scenario: Gas/water meter microcontroller and sensor subsystems require continuous low-power supply during long sleep cycles between readings. IC Role / Device Role / Timing Role: Primary keep-alive buck regulator supplying 1.8 V or 3.3 V to RTC, memory, and wake-up circuitry. Use Value: 180 nA hysteresis-mode IQ extends 10-year battery life; VOUTOK enables accurate wake-up confirmation before measurement burst. |
Use Scenario: Wearable ECG or glucose monitors operate intermittently on CR2032 or AAA batteries with strict size constraints. IC Role / Device Role / Timing Role: Main system power regulator delivering 2.5 V or 3.0 V to analog front-end and BLE SoC during active sessions. Use Value: 500 mA PWM-mode output supports peak BLE transmission; 9-ball WLCSP fits sub-100 mm² PCB area. |
| Battery-Powered IoT Sensors | Industrial Remote Monitoring Nodes |
Use Scenario: Wireless temperature/humidity sensors transmit data every 5 minutes using LoRa or NB-IoT, spending >99% time in deep sleep. IC Role / Device Role / Timing Role: Always-on power management IC enabling fast wake-up from hysteresis mode to full PWM regulation within microseconds. Use Value: Dual-mode flexibility eliminates need for separate LDO + buck; 2 MHz switching allows use of 2.2 µH inductor and 10 µF ceramic caps. |
Use Scenario: Harsh-environment condition monitoring nodes (e.g., pipeline pressure, tank level) deployed for 15+ years without maintenance. IC Role / Device Role / Timing Role: Primary DC-DC converter powering microcontroller, RS-485 transceiver, and analog signal chain across −40°C to +125°C junction range. Use Value: −40°C to +125°C rated WLCSP and ±1.5% output accuracy ensure reliability in uncontrolled enclosures; UVLO prevents erratic behavior during cold start. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62840DRVR | 200 nA IQ in hibernate mode; 1.8–5.5 V input; fixed 1.8 V/3.3 V outputs only; no VID programmability | Lacks adjustable output voltage; requires external resistor network for non-standard rails | Choose for cost-sensitive designs needing only factory-fixed outputs and TI ecosystem support |
| MAX77650EWL+T | 2.5 µA IQ (not hysteresis); integrates charger, fuel gauge, and LDO; 1.8–5.5 V input; 0.6–3.7 V output via I²C | System-level PMIC vs. standalone buck; requires digital interface and firmware overhead | Choose when consolidating power functions onto single chip outweighs added complexity and higher IQ |
Compared with TPS62840DRVR and MAX77650EWL+T, ADP5301ACBZ-2-R7 uniquely combines sub-200 nA hysteresis IQ, hardware-selectable dual-mode operation, and resistor-programmable output voltage - making it optimal for long-life, analog-intensive, and layout-constrained metering and portable medical systems where flexibility and ultra-low static power are non-negotiable.
Availability
ADP5301ACBZ-2-R7 is available at Aetrix Electronics and suitable for energy metering, portable medical devices, and industrial remote monitoring requiring stable component supply, long-lifecycle assurance, and traceable sourcing for safety-critical deployments.
Supply support for ADP5301ACBZ-2-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, with design centers worldwide and ISO 9001-certified manufacturing.
The ADP5301 belongs to Analog Devices' ultralow-power DC-DC regulator product line, engineered specifically for battery-operated utility metering, portable healthcare, and always-on IoT edge nodes demanding decade-long operation from primary cells.
FAQ
What is the minimum input voltage required to start up ADP5301ACBZ-2-R7?
The ADP5301ACBZ-2-R7 has an input start-up voltage range of 2.15 V to 6.50 V. It begins regulation when PVIN rises above 2.15 V (typical), and continues operating down to 2.00 V. Below 2.00 V, UVLO activates and disables the regulator. This makes ADP5301ACBZ-2-R7 compatible with partially discharged alkaline, NiMH, or single-cell Li-ion sources.
How does ADP5301ACBZ-2-R7 achieve 180 nA quiescent current?
The ADP5301ACBZ-2-R7 achieves 180 nA typical quiescent current in hysteresis mode by disabling the oscillator, high-side and low-side FET drivers, and most internal circuitry during standby intervals. Only the hysteresis comparator and ultra-low-leakage bias remain active - a design optimized for keep-alive operation in ADP5301ACBZ-2-R7-based energy meters and portable sensors.
Can ADP5301ACBZ-2-R7 be synchronized to an external clock?
Yes, ADP5301ACBZ-2-R7 supports external clock synchronization via the SYNC/MODE pin. When an external clock signal (1.5 MHz to 2.5 MHz) is applied, the device automatically detects and locks to that frequency. If the external clock stops, ADP5301ACBZ-2-R7 reverts to its internal 2 MHz oscillator - ensuring robust timing control without software intervention.
What output voltage options does ADP5301ACBZ-2-R7 support?
ADP5301ACBZ-2-R7 supports output voltages from 0.8 V to 5.0 V, selectable either by an external VID resistor (e.g., 11.8 kΩ for 1.2 V) or factory-programmed fuse (e.g., Factory Option 0 = 3.0 V). The internal feedback reference is fixed at 0.808 V, and FB must be connected directly to VOUT - eliminating external resistor networks and saving board space in ADP5301ACBZ-2-R7 designs.
Does ADP5301ACBZ-2-R7 include overcurrent protection?
Yes, ADP5301ACBZ-2-R7 includes cycle-by-cycle overcurrent protection. In PWM mode, the peak current limit is 1000 mA (typical); in hysteresis mode, it is 265 mA (typical). Additionally, short-circuit protection triggers frequency foldback (to 500 kHz) when FB falls below 0.3 V - preventing thermal runaway and ensuring safe operation under fault conditions in ADP5301ACBZ-2-R7 applications.
ADP5301ACBZ-2-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 9-WFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.15V
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5V
- Current - Output:
- 50mA, 500mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-WLCSP (1.87x1.65)
ADP5301ACBZ-2-R7 FAQ
1.How can I place an order for ADP5301ACBZ-2-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP5301ACBZ-2-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 ADP5301ACBZ-2-R7 reliable?
The price and inventory of ADP5301ACBZ-2-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP5301ACBZ-2-R7 is usually 5 days.
3.What payment methods are accepted for ADP5301ACBZ-2-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP5301ACBZ-2-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP5301ACBZ-2-R7?
ADP5301ACBZ-2-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP5301ACBZ-2-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 ADP5301ACBZ-2-R7?
For technical support, including ADP5301ACBZ-2-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP5301ACBZ-2-R7 requirements.
6.How does Aetrix verify that ADP5301ACBZ-2-R7 is sourced from the original manufacturer or authorized distributors?
All ADP5301ACBZ-2-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 ADP5301ACBZ-2-R7 meets industry standards.
7.What is the process for return or replacement of ADP5301ACBZ-2-R7?
All ADP5301ACBZ-2-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP5301ACBZ-2-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 ADP5301ACBZ-2-R7 part is unused and in its original packaging.
Return procedure for ADP5301ACBZ-2-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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