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Analog Devices Inc. ADP2504ACPZ-R7
- Part No.:
- ADP2504ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
ADP2504ACPZ-R7.pdf
- Description:
- IC REG BUCK BOOST ADJ 1A 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,163
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Product details
Overview
ADP2504ACPZ-R7 from Analog Devices is a 1000 mA, 2.5 MHz synchronous buck-boost DC-to-DC converter in a 10-lead 3 mm × 3 mm LFCSP package, supporting input voltages from 2.3 V to 5.5 V and adjustable output from 2.8 V to 5.5 V. It delivers seamless mode transition, 38 μA quiescent current, and true load disconnect-ideal for USB-powered portable audio players requiring stable 3.3 V/1 A rail from single-cell lithium sources.
For engineers reviewing the ADP2504ACPZ-R7 datasheet, ADP2504ACPZ-R7 pinout, ADP2504ACPZ-R7 application, or ADP2504ACPZ-R7 equivalent, key selection criteria include its adjustable output capability, 1000 mA continuous output, 2.5 MHz fixed-frequency operation with SYNC control, thermal shutdown at 150°C, and compatibility with 1.5 µH inductors for compact PCB footprint.
Technical Context
The ADP2504ACPZ-R7 implements synchronous average current-mode control with automatic buck/boost/buck-boost mode switching based on VIN–VOUT relationship. Its internal PMOS/NMOS power switches (150 mΩ each) and integrated compensation enable stable regulation across input voltages spanning 2.3 V to 5.5 V while maintaining output accuracy within ±2% for fixed versions and 500 mV feedback reference for adjustable configurations.
It supports three SYNC pin modes: low for PSM-enabled light-load efficiency, high for forced PWM, and external clock input (2.2–2.8 MHz) for EMI-sensitive wireless systems. Soft start ramps VOUT in 200 μs, undervoltage lockout activates at 2.20 V (rising), and thermal shutdown triggers at 150°C with 25°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1000 mA continuous - supports high-current loads like USB peripherals without external current boosting. |
| Switching Frequency | 2.5 MHz typical - enables use of 1.5 µH inductors, reducing solution size and output ripple. |
| Input Voltage Range | 2.3 V to 5.5 V - compatible with single Li+/LiPo cells, USB 5 V, and multi-alkaline/NiMH stacks. |
| Output Voltage Range | 2.8 V to 5.5 V (adjustable) - programmable via external resistor divider with 500 mV feedback reference. |
| Quiescent Current | 38 μA typical - extends battery life in always-on portable devices such as digital cameras. |
| Shutdown Current | 0.2 μA typical - ensures near-zero drain during system sleep states. |
| Thermal Shutdown | 150°C threshold with 25°C hysteresis - protects against sustained overload or poor PCB thermal design. |
| Package | 10-lead 3 mm × 3 mm LFCSP - low-profile (1 mm height), exposed pad for thermal dissipation, RoHS-compliant. |
Pinout & Package
ADP2504ACPZ-R7 uses a 10-lead 3 mm × 3 mm LFCSP (CP-10-9) package with exposed thermal pad connected to PGND. The compact footprint supports high-density portable designs while enabling efficient heat transfer through the EP pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Regulated output node | Delivers final regulated voltage; requires local 22 µF ceramic capacitor to PGND for stability and transient response. |
| SW2 | Buck-boost switch node 2 | Connects to inductor; carries high di/dt current in boost and buck-boost modes-requires short, wide trace. |
| PGND | Power ground return | Common return for input/output capacitors and power switches; must be tied to EP pad and low-impedance plane. |
| SW1 | Buck-boost switch node 1 | Connects to same inductor as SW2; active in buck and buck-boost modes-critical for minimizing loop inductance. |
| PVIN | Power input supply | High-current input path for power switches; requires 10 µF ceramic capacitor placed adjacent to pin. |
| EN | Enable logic input | Active-high control: drives high to enable regulation, low to enter <1 µA shutdown state with load disconnect. |
| SYNC | Mode control and synchronization | Selects PSM (low), forced PWM (high), or external clock sync (2.2–2.8 MHz); enables EMI control in noise-sensitive systems. |
| VIN | Analog supply input | Provides bias for internal circuitry; decoupled separately from PVIN to reduce noise coupling into control loop. |
| AGND | Analog ground reference | Reference for FB, EN, SYNC; must be isolated from PGND except at single-point connection near IC. |
| FB | Feedback input | Monitors output via resistor divider; 500 mV reference sets VOUT = 500 mV × (R1 + R2)/R2 in adjustable configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Seamless buck/boost/buck-boost transition | Maintains regulation without dropout when VIN crosses VOUT ±10%, critical for battery-powered systems with declining voltage. |
| True load disconnect in boost mode | Isolates output from input during shutdown using internal PMOS switch-prevents backfeed and enables safe hot-swap operation. |
| Internal compensation | Eliminates need for external compensation network, reducing BOM count and layout sensitivity while ensuring stability with 1.5 µH inductors. |
| Soft start (200 μs) | Controls output ramp rate to limit inrush current to <600 mA with 20 µF output capacitor-protects input source and avoids brownout. |
| Three-mode SYNC control | Enables system-level EMI management: PSM for max battery life, forced PWM for predictable timing, external sync for clock domain alignment. |
| Overtemperature & short-circuit protection | Shuts down power switches at 150°C junction temp and limits peak inductor current to 2.0 A (ADP2504), enabling robust field operation. |
Applications
| Wireless Handsets | Digital Cameras |
|---|---|
Use Scenario: Powering baseband processor and RF transceiver from single Li+ cell with varying voltage (4.2 V → 3.0 V). IC Role / Device Role / Timing Role: Buck-boost regulator maintaining constant 3.3 V rail regardless of battery state. Use Value: Eliminates need for separate buck and boost stages; seamless mode transition prevents system reset during voltage crossover. |
Use Scenario: Supplying image sensor and LCD backlight driver from USB 5 V or dual-alkaline batteries. IC Role / Device Role / Timing Role: Adjustable-output converter delivering 2.8 V to 5.0 V rails with tight load regulation. Use Value: Single IC supports multiple camera models via resistor-divider programming-reduces SKU count and BOM complexity. |
| USB-Powered Audio Players | Miniature Hard Disk Drives |
Use Scenario: Regulating clean 3.3 V for DAC and headphone amplifier from noisy USB 5 V bus. IC Role / Device Role / Timing Role: High-frequency (2.5 MHz) buck-boost converter minimizing EMI interference with analog audio paths. Use Value: Enables use of small 1.5 µH inductor and ceramic caps-reduces board area and avoids ferrite bead filtering. |
Use Scenario: Providing 5.0 V spin-up surge and 3.3 V steady-state power to 1.8-inch HDD from 5 V USB or 3.3 V system rail. IC Role / Device Role / Timing Role: 1000 mA capable regulator with soft-start limiting inrush during motor startup. Use Value: Prevents USB port overcurrent trip by controlling VOUT ramp rate and sustaining peak current during disk acceleration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS63020DSJR | 600 mA output, 2.5 MHz, 2.5 V–6.0 V input, fixed/adjustable outputs; no true load disconnect in boost mode. | Lacks integrated load disconnect-requires external MOSFET for hot-swap isolation in USB applications. | Choose when lower cost and TI ecosystem support outweigh need for load isolation and 1 A capability. |
| MAX77827BEWC+T | 1200 mA output, 2.5 MHz, 2.5 V–5.5 V input, I²C-programmable output; larger 16-pin WLP package (3.2 mm × 3.2 mm). | Supports dynamic voltage scaling via I²C but adds firmware dependency and layout complexity. | Prefer when system requires runtime VOUT adjustment or tighter factory calibration than resistor-divider allows. |
Compared with TPS63020DSJR and MAX77827BEWC+T, the ADP2504ACPZ-R7 uniquely combines 1000 mA output, true load disconnect, 38 μA quiescent current, and 3 mm × 3 mm LFCSP in a pinout-optimized layout-making it optimal for space-constrained, battery-sensitive portable designs where reliability and minimal external components are critical.
Availability
ADP2504ACPZ-R7 is available at Aetrix Electronics and suitable for wireless handsets, digital cameras, and USB-powered audio players requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ADP2504ACPZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, communications, and automotive markets.
The ADP2504ACPZ-R7 belongs to Analog Devices' high-efficiency, low-quiescent-current buck-boost converter family designed specifically for battery-powered portable electronics where input voltage varies across the output range and minimal solution size is essential.
FAQ
What output voltage options does the ADP2504ACPZ-R7 support?
The ADP2504ACPZ-R7 is the adjustable version of the ADP2504 family and supports an output voltage range of 2.8 V to 5.5 V, set via an external resistor divider connected to the FB pin. Its internal 500 mV feedback reference enables precise programming using standard resistor values, unlike fixed-output variants such as ADP2504ACPZ-3.3-R7 or ADP2504ACPZ-5.0-R7.
How does the ADP2504ACPZ-R7 handle input voltage transitions across the output voltage?
The ADP2504ACPZ-R7 automatically transitions between buck, boost, and buck-boost operating modes depending on the relationship between VIN and VOUT. When VIN is significantly higher than VOUT, it operates in buck mode; when significantly lower, in boost mode; and when within ±10% of VOUT, it enters buck-boost mode-ensuring uninterrupted regulation without dropout or manual intervention.
Does the ADP2504ACPZ-R7 provide load disconnect functionality?
Yes, the ADP2504ACPZ-R7 provides true load disconnect in boost configuration during shutdown. When the EN pin is driven low, internal PMOS switches isolate the VOUT node from both PVIN and SW nodes, preventing reverse current flow and enabling safe hot-swap operation-critical for USB-powered devices and battery-backed systems.
What is the recommended inductor value for the ADP2504ACPZ-R7?
Analog Devices recommends a 1.5 µH inductor for the ADP2504ACPZ-R7 to optimize efficiency and minimize size. The 2.5 MHz switching frequency allows use of small, low-profile ceramic or shielded ferrite inductors (e.g., Taiyo Yuden NR3015T1 or Coilcraft LPS3010), with saturation current rating ≥1.5 A and DCR <120 mΩ to maintain thermal performance under 1000 mA load.
Can the ADP2504ACPZ-R7 synchronize to an external clock?
Yes, the ADP2504ACPZ-R7 supports external clock synchronization via the SYNC pin. When driven with a square wave between 2.2 MHz and 2.8 MHz (with >160 ns minimum off time), the device locks its switching frequency to the external source-enabling EMI reduction through frequency dithering or alignment with system clocks in noise-sensitive applications.
ADP2504ACPZ-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-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-LFCSP-WD (3x3)
ADP2504ACPZ-R7 FAQ
1.How can I place an order for ADP2504ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2504ACPZ-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 ADP2504ACPZ-R7 reliable?
The price and inventory of ADP2504ACPZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2504ACPZ-R7 is usually 5 days.
3.What payment methods are accepted for ADP2504ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2504ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2504ACPZ-R7?
ADP2504ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2504ACPZ-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 ADP2504ACPZ-R7?
For technical support, including ADP2504ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2504ACPZ-R7 requirements.
6.How does Aetrix verify that ADP2504ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2504ACPZ-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 ADP2504ACPZ-R7 meets industry standards.
7.What is the process for return or replacement of ADP2504ACPZ-R7?
All ADP2504ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2504ACPZ-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 ADP2504ACPZ-R7 part is unused and in its original packaging.
Return procedure for ADP2504ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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