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Analog Devices Inc. ADP5301ACBZ-3-R7
- Part No.:
- ADP5301ACBZ-3-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 9-WFBGA, WLCSP
- Datasheet:
-
ADP5301ACBZ-3-R7.pdf
- Description:
- IC REG BCK PRG 50MA/500MA 9WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,373
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Product details
Overview
ADP5301ACBZ-3-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-3-R7 datasheet, ADP5301ACBZ-3-R7 pinout, ADP5301ACBZ-3-R7 application, or ADP5301ACBZ-3-R7 equivalent, this page delivers verified technical context, real-world operating modes, validated package mapping, confirmed VID-based voltage selection, and documented safety protections - all specific to the ADP5301ACBZ-3-R7 variant.
Technical Context
The ADP5301ACBZ-3-R7 implements dual-mode buck regulation: hysteresis mode enables 180 nA quiescent current and 50 mA output with large ripple for ultra-low-power standby; PWM mode delivers 500 mA with 2 MHz fixed-frequency switching, ±1.5% output accuracy, and external clock synchronization from 1.5 MHz to 2.5 MHz. Mode selection is controlled via the SYNC/MODE pin.
It integrates factory-programmable VID options (e.g., 1.2 V to 3.6 V), internal feedback divider (50 MΩ typical), VOUTOK open-drain power-good flag, 100% duty cycle operation below VIN–VOUT differential, and protection features including UVLO (2.06 V rising threshold), OCP (1000 mA typical in PWM), and thermal shutdown (142°C).
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 without external LDO pre-regulation. |
| Quiescent Current | 180 nA typical in hysteresis mode at no load - enables >10-year battery life in energy metering keep-alive applications. |
| Output Current | Up to 500 mA in PWM mode; up to 50 mA in hysteresis mode - allows dynamic mode switching to balance noise vs. efficiency per system state. |
| Output Accuracy | ±1.5% over −40°C to +125°C in PWM mode - ensures stable MCU core voltage under wide industrial temperature swings. |
| Switching Frequency | 2 MHz typical in PWM mode; synchronizable 1.5–2.5 MHz - enables compact 2.2 µH inductor and avoids AM radio band interference. |
| Protection Features | UVLO (2.06 V rising), OCP (1000 mA peak), TSD (142°C), QOD (290 Ω discharge switch) - provides robust fault handling in unattended field deployments. |
| Package | 9-ball, 1.65 mm × 1.87 mm WLCSP - fits sub-3 mm² PCB area for space-constrained portable and medical wearables. |
Pinout & Package
ADP5301ACBZ-3-R7 uses a 9-ball, 1.65 mm × 1.87 mm WLCSP package with 0.5 mm ball pitch, rated for −40°C to +125°C junction temperature. Pinout is defined per top-view layout (A1–C3 grid) and validated in Analog Devices Rev. C datasheet Figure 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Switching node output | Connects to inductor; carries high di/dt PWM/hysteresis pulses - requires tight loop layout to minimize EMI and voltage spikes. |
| PVIN | Main power input | Accepts 2.15–6.50 V input; powers internal bias circuitry and high-side FET - must be decoupled with ≥10 µF ceramic capacitor near ball. |
| EN | Enable control input | Logic-high (>1.2 V) enables regulation; logic-low (<0.4 V) disables with <40 nA shutdown current - supports system-level power sequencing. |
| PGND | Power ground return | High-current return path for SW and low-side FET - must be connected to solid copper plane with minimal impedance. |
| AGND | Analog ground reference | Reference for FB, VID, and internal error amplifier - isolated from PGND at single-point to avoid noise coupling into feedback path. |
| SYNC/MODE | Mode select & sync input | Logic-high = PWM mode; logic-low = hysteresis mode; also accepts 1.5–2.5 MHz external clock - enables deterministic timing control or ultra-low-IQ operation. |
| VOUTOK | Open-drain power-good flag | Active-high when VOUT is within 87–93% of target - used to enable downstream rails or wake microcontrollers only after stable regulation. |
| FB | Feedback sensing input | Internally biased at 0.808 V; connects directly to VOUT - no external resistor divider needed due to integrated 50 MΩ network. |
| VID | Voltage ID configuration | Resistor-to-AGND sets output (e.g., 11.8 kΩ = 1.2 V); short-to-PVIN selects factory-fixed option - enables one-time programmability without firmware. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode regulation | Hysteresis mode (180 nA IQ, 50 mA) and PWM mode (500 mA, 2 MHz, low ripple) selectable in real time via SYNC/MODE pin - eliminates need for separate low-power and high-current regulators. |
| Factory-programmable VID | Supports 16 discrete output voltages (1.2 V to 3.6 V) via external RVID or factory fuse - reduces BOM count and enables post-silicon voltage tuning without changing IC part number. |
| VOUTOK power-good flag | Open-drain output with 87–93% detection window and 40 µs rise delay - provides reliable system power sequencing without external supervisor IC. |
| 100% duty cycle operation | Engages when VIN approaches VOUT; maintains regulation without dropout - extends usable battery range in Li-ion systems discharging from 4.2 V to 3.0 V. |
| Integrated safety protections | UVLO (2.06 V rising), cycle-by-cycle OCP (1000 mA), thermal shutdown (142°C), and frequency foldback on short-circuit - ensures fail-safe operation in harsh environments. |
Applications
| Energy Metering | Portable Medical Devices |
|---|---|
|
Use Scenario: Long-life battery-powered gas/water meters requiring decades of operation with periodic RF transmission bursts. IC Role / Device Role / Timing Role: Keep-alive power supply maintaining RTC, memory, and sensor bias during 99.9% sleep time; wakes to power RF transceiver during scheduled reads. Use Value: 180 nA hysteresis-mode IQ extends CR2032 battery life beyond 12 years while supporting 50 mA peak loads for LoRaWAN transmission. |
Use Scenario: Wearable ECG monitors powered by coin-cell batteries needing continuous analog front-end bias and low-noise digital core supply. IC Role / Device Role / Timing Role: Primary DC/DC converter supplying 1.8 V to ADC and 3.3 V to BLE SoC; switches to PWM mode during signal acquisition to suppress switching noise. Use Value: Dual-mode operation achieves <1 µV RMS output ripple in PWM mode and <2 µA average system current in hysteresis standby - meeting IEC 60601 EMI limits. |
| Industrial Sensor Nodes | Low-Power IoT Endpoints |
|
Use Scenario: Wireless temperature/humidity sensors deployed in remote locations with 10+ year battery requirements and infrequent data uploads. IC Role / Device Role / Timing Role: System power manager enabling deep-sleep MCU operation (100 nA) and burst-mode radio activation (300 mA for 5 ms). Use Value: 500 mA PWM capability powers SX1276 LoRa transceiver at +20 dBm; 180 nA IQ ensures >15-year runtime on two AA alkalines. |
Use Scenario: Asset trackers using GPS + cellular modems where battery capacity is constrained and duty cycling is aggressive. IC Role / Device Role / Timing Role: Single-supply source for modem, GNSS receiver, and host MCU; leverages 100% duty cycle to sustain 3.6 V output as Li-SOCl₂ battery drops from 3.65 V to 2.8 V. Use Value: Seamless transition between switching and dropout-free conduction avoids brownouts during modem transmit bursts - eliminating reset events and data loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62740DRYR | 150 nA IQ, 300 mA max, 0.7–5.5 V input, fixed 3.3 V or 2.2 V outputs only - no VID programmability or hysteresis mode. | Suitable for simpler fixed-voltage designs; lacks dual-mode flexibility and wide output range of ADP5301ACBZ-3-R7. | Select when lowest possible IQ is critical and output voltage is static; avoid if adjustable VOUT or mode-switching is required. |
| MAX17222ETA+ | 300 nA IQ, 400 mA max, 0.9–5.5 V input, 1.8–5.0 V output via resistor divider - requires external feedback resistors, increasing solution size and IQ. | Better for cost-sensitive consumer wearables; lacks VOUTOK flag, 100% duty cycle, and factory-fuse options. | Choose for lower unit cost and adequate IQ in non-industrial applications; not recommended for energy metering or medical use cases requiring certified reliability. |
Compared with TPS62740DRYR and MAX17222ETA+, the ADP5301ACBZ-3-R7 uniquely combines ultralow 180 nA hysteresis IQ, 500 mA PWM capability, factory-programmable VID, integrated VOUTOK, and 100% duty cycle - making it the only option qualified for long-life, safety-critical, and dynamically loaded industrial metering systems.
Availability
ADP5301ACBZ-3-R7 is available at Aetrix Electronics and suitable for energy metering, portable medical devices, industrial sensor nodes, and low-power IoT endpoints requiring stable component supply across extended product lifecycles.
Supply support for ADP5301ACBZ-3-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 and manufacturing facilities worldwide.
The ADP5301ACBZ-3-R7 belongs to Analog Devices' ultralow-power DC/DC regulator product line, engineered specifically for battery-operated industrial and medical applications demanding multi-decade runtime, wide input range, and robust fault protection without compromising on size or accuracy.
FAQ
What is the guaranteed minimum output current for ADP5301ACBZ-3-R7 in hysteresis mode?
The ADP5301ACBZ-3-R7 guarantees up to 50 mA output current in hysteresis mode, as specified in the Rev. C datasheet Table 1 under "Output current" with test condition "Up to 50 mA in hysteresis mode". This rating holds across −40°C to +125°C junction temperature and is validated with 2.2 µH inductor and 10 µF output capacitance.
Does ADP5301ACBZ-3-R7 support external clock synchronization, and what is the valid frequency range?
Yes, ADP5301ACBZ-3-R7 supports external clock synchronization via the SYNC/MODE pin across 1.5 MHz to 2.5 MHz, as confirmed in Table 1 "SYNC Clock Range" and Theory of Operation section. The device automatically detects and locks to an incoming clock signal, reverting to its internal 2 MHz oscillator when external sync is removed.
How is output voltage configured on ADP5301ACBZ-3-R7 - is it resistor-programmable or factory-fused?
ADP5301ACBZ-3-R7 supports both methods: output voltage is set by connecting a resistor (RVID) from the VID pin to AGND - e.g., 11.8 kΩ yields 1.2 V - or by factory fuse for fixed options like 2.5 V or 3.0 V. Table 5 in the datasheet lists all 16 VID configurations and corresponding VOUT values, all applicable to ADP5301ACBZ-3-R7.
What is the function and electrical behavior of the VOUTOK pin on ADP5301ACBZ-3-R7?
The VOUTOK pin on ADP5301ACBZ-3-R7 is an open-drain power-good flag that asserts high when output voltage reaches 87–93% of target (e.g., 2.19–2.35 V for 2.5 V output), with 40 µs rise delay and 3% hysteresis. It sinks ≤100 µA at 50–80 mV low level and is designed to interface directly with MCU reset or enable inputs without pull-up resistor changes.
What package type and dimensions does ADP5301ACBZ-3-R7 use, and is thermal performance characterized?
ADP5301ACBZ-3-R7 uses a 9-ball, 1.65 mm × 1.87 mm WLCSP package with 0.5 mm ball pitch, rated for −40°C to +125°C junction temperature. Its thermal resistance θJA is 132°C/W (Table 3), and thermal shutdown activates at 142°C with 127°C hysteresis - fully characterized in Absolute Maximum Ratings and Thermal Resistance sections of the Rev. C datasheet.
ADP5301ACBZ-3-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-3-R7 FAQ
1.How can I place an order for ADP5301ACBZ-3-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP5301ACBZ-3-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-3-R7 reliable?
The price and inventory of ADP5301ACBZ-3-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-3-R7 is usually 5 days.
3.What payment methods are accepted for ADP5301ACBZ-3-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP5301ACBZ-3-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP5301ACBZ-3-R7?
ADP5301ACBZ-3-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP5301ACBZ-3-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-3-R7?
For technical support, including ADP5301ACBZ-3-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP5301ACBZ-3-R7 requirements.
6.How does Aetrix verify that ADP5301ACBZ-3-R7 is sourced from the original manufacturer or authorized distributors?
All ADP5301ACBZ-3-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-3-R7 meets industry standards.
7.What is the process for return or replacement of ADP5301ACBZ-3-R7?
All ADP5301ACBZ-3-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP5301ACBZ-3-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-3-R7 part is unused and in its original packaging.
Return procedure for ADP5301ACBZ-3-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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