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Analog Devices Inc. ADP5304ACPZ-1-R7
- Part No.:
- ADP5304ACPZ-1-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
ADP5304ACPZ-1-R7.pdf
- Description:
- IC REG BUCK PROG 50MA 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:746
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Product details
Overview
ADP5304ACPZ-1-R7 from Analog Devices is an ultralow power, hysteresis-mode step-down regulator designed for energy harvesting and keep-alive power supply applications. It operates from 2.15 V to 6.50 V input, delivers up to 50 mA output current, achieves ±2.5% output accuracy over −40°C to +125°C, and draws only 260 nA typical quiescent current at no load-enabling direct use with high-impedance sources like piezoelectric harvesters or coin cells.
For engineers reviewing the ADP5304ACPZ-1-R7 datasheet, ADP5304ACPZ-1-R7 pinout, ADP5304ACPZ-1-R7 application, or ADP5304ACPZ-1-R7 equivalent, key selection criteria include its 260 nA IQ, factory-programmable VINOK threshold (2.05–5.15 V), 10-lead 3 mm × 3 mm LFCSP package, hysteresis-mode operation enabled via MODE pin grounding, and support for output voltages from 0.8 V to 5.0 V via VID resistor configuration.
Technical Context
The ADP5304ACPZ-1-R7 implements a hysteresis-based buck regulation architecture that alternates between active switching and ultra-low-power standby mode-triggered by upper/lower feedback thresholds-to sustain efficiency below 1 mW. Its integrated 2.06 V UVLO (with 1.90 V falling threshold) and factory-programmable VINOK comparator enable MPPT-like behavior for energy harvesters.
It features separate EN control, quick output discharge (QOD) option (290 Ω discharge switch), 100% duty cycle operation when VIN ≈ VOUT, and protection including OCP (265 mA peak limit), thermal shutdown (142°C trip), and undervoltage lockout-all in a single 10-lead LFCSP package rated for −40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.15 V to 6.50 V - supports alkaline/NiMH/Li cells and high-impedance harvesters without external pre-regulation |
| Quiescent Current | 260 nA typical at no load - enables multi-year battery life in always-on sensor nodes |
| Output Accuracy | ±2.5% over −40°C to +125°C - ensures stable MCU/AFE biasing across industrial temperature range |
| Max Output Current | 50 mA in hysteresis mode - sufficient for low-duty-cycle RF transceivers or ADCs in energy-constrained systems |
| VINOK Threshold | Factory programmable 2.05 V to 5.15 V in 50 mV steps - allows precise MPPT alignment with harvester IV curve |
| UVLO Threshold | Rising: 2.06 V typical; Falling: 2.00 V typical - prevents erratic startup/shutdown during weak source recovery |
| Package | 10-lead, 3 mm × 3 mm LFCSP with exposed pad - provides thermal performance (θJA = 57°C/W) in space-constrained designs |
Pinout & Package
The ADP5304ACPZ-1-R7 is housed in a 10-lead, 3 mm × 3 mm LFCSP package with exposed thermal pad (EPAD) requiring soldering to a large copper ground plane. Pin 2 (NC) must be connected to AGND per datasheet guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Logic-high enables regulation; logic-low forces shutdown (18–130 nA leakage) |
| MODE | Operating mode select | Grounded to force hysteresis mode; floating or high disables hysteresis |
| VID | Output voltage configuration | Resistor-to-ground sets VOUT from 0.8 V to 5.0 V; short-to-PVIN selects factory-fixed options |
| FB | Feedback sensing input | Direct connection to VOUT required; internal 50 MΩ divider enables ultralow IQ |
| VINOK | Open-drain input power-good flag | Active-high when PVIN exceeds factory-set threshold; 130 μs falling delay supports stable harvester monitoring |
| AGND / PGND | Analog and power ground | Separate pins minimize noise coupling; PGND carries high di/dt switching currents |
| SW | Switching node | Connects to external inductor; drives internal high-side (386 mΩ typ.) and low-side (299 mΩ typ.) FETs |
| PVIN | Main power input | Accepts 2.15–6.50 V; feeds internal bias and switching circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Hysteresis-mode regulation | Enables >85% efficiency at sub-100 μA loads-critical for trickle-charging supercapacitors from microwatt harvesters |
| Factory-programmable VINOK | Configurable 2.05–5.15 V threshold in 50 mV steps allows system-level MPPT tuning without firmware changes |
| 100% duty cycle operation | Eliminates switching loss when VIN approaches VOUT, reducing IQ to 640 nA while maintaining regulation |
| Integrated quick output discharge (QOD) | 290 Ω internal discharge switch (factory-enabled option) ensures safe, rapid VOUT ramp-down on disable |
| Ultralow IQ with full protection | 260 nA operating IQ coexists with UVLO, OCP (265 mA), TSD (142°C), and soft-start-no trade-off between efficiency and robustness |
Applications
| Gas Metering | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered ultrasonic gas meter with periodic RF transmission and long sleep intervals. IC Role / Device Role / Timing Role: Primary keep-alive regulator supplying 1.8 V to MCU and analog front-end during 99.9% sleep time. Use Value: 260 nA IQ extends CR2032 lifetime beyond 10 years; VINOK monitors battery health and triggers graceful shutdown before depletion. | Use Scenario: Piezoelectric vibration harvester powering a BLE sensor node in industrial predictive maintenance. IC Role / Device Role / Timing Role: Energy-harvesting buck converter charging a 100 mF supercapacitor to power intermittent 50 mA RF bursts. Use Value: Hysteresis mode enables >75% efficiency at 10 μA average load; programmable VINOK aligns switching onset with harvester's maximum power point. |
| Medical Wearable | Smart Water Meter |
Use Scenario: ECG patch with continuous analog sensing and daily Bluetooth data upload. IC Role / Device Role / Timing Role: Low-noise, stable 3.3 V supply for precision ADC and RF transceiver during brief active periods. Use Value: ±2.5% output accuracy over −40°C to +125°C ensures consistent signal chain gain; 10-lead LFCSP fits tight wearable PCB real estate. | Use Scenario: Ultrasonic water meter using dual AA batteries with 15-year target lifetime and tamper detection. IC Role / Device Role / Timing Role: Primary regulator delivering 2.5 V to metrology ASIC and 1.2 V to microcontroller via VID configuration. Use Value: 50 mA hysteresis-mode output supports pulse-driven ultrasonic transducers; UVLO prevents false readings during battery sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultralow-power step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62840DRVR | 250 nA IQ, 0.8–5.0 V output, but uses PWM mode-not hysteresis-limiting sub-100 μA efficiency | Preferred for higher-frequency, higher-current (>100 mA) battery-powered apps where hysteresis isn't required | Select ADP5304ACPZ-1-R7 when hysteresis-mode efficiency at <100 μA is mandatory; choose TPS62840DRVR for tighter output ripple in PWM-dominated loads |
| LTC3336EDDB#TRMPBF | 650 nA IQ, integrated energy harvester interface (AC/DC), but fixed 3.3 V output and larger 12-lead DFN package | Better suited for AC-coupled harvesters (e.g., solar mini-panels) requiring built-in rectification | Choose ADP5304ACPZ-1-R7 for DC-coupled harvesters (piezo, thermoelectric) needing programmable VOUT and minimal footprint; LTC3336 for AC-input simplicity |
Compared with TPS62840DRVR and LTC3336EDDB#TRMPBF, the ADP5304ACPZ-1-R7 uniquely combines hysteresis-mode operation, factory-programmable VINOK for MPPT, and 260 nA IQ in a 3 mm × 3 mm LFCSP-making it the only choice for DC harvester systems demanding both micropower efficiency and adaptive input monitoring.
Availability
ADP5304ACPZ-1-R7 is available at Aetrix Electronics and suitable for energy harvesting systems, battery-powered medical wearables, and smart utility metering requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for ADP5304ACPZ-1-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, serving industrial, automotive, communications, and healthcare markets.
The ADP5304ACPZ-1-R7 belongs to Analog Devices' ultralow-power PMIC family, engineered specifically for energy-constrained systems where microwatt efficiency, harvester compatibility, and extended battery life are primary design objectives.
FAQ
What is the minimum input voltage required for ADP5304ACPZ-1-R7 to start regulation?
The ADP5304ACPZ-1-R7 has an undervoltage lockout (UVLO) with a typical rising threshold of 2.06 V. Regulation begins after the input voltage on PVIN rises above this level and the EN pin is asserted high. The device can operate down to 2.00 V typical once started, but startup requires ≥2.06 V to initiate soft start. This ensures reliable turn-on from weak energy harvesters or aging batteries.
How does the MODE pin affect ADP5304ACPZ-1-R7 operation?
The MODE pin must be grounded to enable hysteresis-mode operation in the ADP5304ACPZ-1-R7. In this mode, the regulator alternates between active switching and ultralow-power standby to maximize efficiency at light loads. Leaving MODE floating or pulling it high disables hysteresis, reverting to standard PWM operation-which increases IQ and reduces efficiency below ~100 μA.
Can ADP5304ACPZ-1-R7 support multiple output voltages in one design?
No-ADP5304ACPZ-1-R7 is a single-output regulator. Its output voltage is set once at startup via the VID pin configuration (resistor-to-ground or short-to-PVIN) and remains fixed until the next power cycle. To support multiple voltages, separate ADP5304ACPZ-1-R7 units or a different multi-rail PMIC would be required.
What is the purpose of the VINOK pin on ADP5304ACPZ-1-R7?
The VINOK pin on ADP5304ACPZ-1-R7 is an open-drain output that signals when the PVIN voltage exceeds a factory-programmable threshold (2.05–5.15 V). It provides system-level power-good indication and enables maximum power point tracking (MPPT) by synchronizing load activation with harvester voltage peaks-critical for optimizing energy capture in piezoelectric or thermoelectric systems.
Is quick output discharge (QOD) enabled by default on ADP5304ACPZ-1-R7?
No-QOD is a factory-programmable option on ADP5304ACPZ-1-R7 and is disabled by default. When enabled, it activates an internal 290 Ω discharge switch from SW to PGND upon regulator disable, rapidly discharging the output capacitor. To use QOD, specify the factory-fused version (e.g., ADP5304ACPZ-2-R7) or confirm QOD enablement with Analog Devices prior to ordering.
ADP5304ACPZ-1-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad, CSP
- 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
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-LFCSP-WD (3x3)
ADP5304ACPZ-1-R7 FAQ
1.How can I place an order for ADP5304ACPZ-1-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP5304ACPZ-1-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 ADP5304ACPZ-1-R7 reliable?
The price and inventory of ADP5304ACPZ-1-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP5304ACPZ-1-R7 is usually 5 days.
3.What payment methods are accepted for ADP5304ACPZ-1-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP5304ACPZ-1-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP5304ACPZ-1-R7?
ADP5304ACPZ-1-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP5304ACPZ-1-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 ADP5304ACPZ-1-R7?
For technical support, including ADP5304ACPZ-1-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP5304ACPZ-1-R7 requirements.
6.How does Aetrix verify that ADP5304ACPZ-1-R7 is sourced from the original manufacturer or authorized distributors?
All ADP5304ACPZ-1-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 ADP5304ACPZ-1-R7 meets industry standards.
7.What is the process for return or replacement of ADP5304ACPZ-1-R7?
All ADP5304ACPZ-1-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP5304ACPZ-1-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 ADP5304ACPZ-1-R7 part is unused and in its original packaging.
Return procedure for ADP5304ACPZ-1-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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