Analog Devices Inc. ADP2504ACPZ-5.0-R7
- Part No.:
- ADP2504ACPZ-5.0-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
ADP2504ACPZ-5.0-R7.pdf
- Description:
- IC REG BUCK BOOST 5V 1A 10LFCSP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ADP2504ACPZ-5.0-R7 from Analog Devices is a 1000 mA, 2.5 MHz synchronous buck-boost DC-to-DC converter in a 3 mm × 3 mm LFCSP package, delivering fixed 5.0 V output from 2.3 V–5.5 V input. It features seamless buck/boost/buck-boost mode transition, 38 µA quiescent current, and integrated power switches for compact portable power rails in USB-powered devices and wireless handsets.
For engineers reviewing the ADP2504ACPZ-5.0-R7 datasheet, ADP2504ACPZ-5.0-R7 pinout, ADP2504ACPZ-5.0-R7 application, or ADP2504ACPZ-5.0-R7 equivalent, key selection criteria include its 5.0 V fixed output, 1 A load capability, 2.5 MHz switching frequency enabling 1.5 µH inductors, load disconnect functionality, and support for PSM/fixed-frequency/SYNC modes in space-constrained battery-powered systems.
Technical Context
The ADP2504ACPZ-5.0-R7 implements synchronous average current-mode control with internal N- and P-channel MOSFETs (150 mΩ each), supporting buck, boost, and buck-boost operation depending on VIN relative to VOUT. Its seamless mode transition occurs automatically within ±10% of 5.0 V input range, maintaining regulation while minimizing inductor current ripple.
It integrates soft start (200 µs ramp), undervoltage lockout (2.20 V rising threshold), thermal shutdown (150°C), short-circuit protection (1.3–2.0 A switch current limit), and reverse current limiting (1.1 A), all operating across −40°C to +125°C ambient temperature with internal compensation and no external loop components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2% initial accuracy - eliminates external feedback resistors and ensures stable rail for USB-peripheral logic or analog circuitry. |
| Max Output Current | 1000 mA continuous - supports higher-power loads like camera modules or dual-band RF ICs without external current boosting. |
| Input Voltage Range | 2.3 V to 5.5 V - compatible with single Li+/LiPo cells, USB 5 V, or multi-cell alkaline/NiMH sources without pre-regulation. |
| Switching Frequency | 2.5 MHz typical (2.1–2.9 MHz range) - enables use of small 1.5 µH inductors and reduces output capacitor size for ultra-compact PCB layouts. |
| Quiescent Current | 38 µA typical - extends battery life in always-on or low-duty-cycle applications such as Bluetooth headsets or sensor nodes. |
| Shutdown Current | 0.2 µA typical - ensures near-zero drain during system sleep, critical for long-term energy harvesting or backup power designs. |
| Package | 10-lead 3 mm × 3 mm LFCSP with exposed pad - provides low thermal resistance (θJA = 84°C/W) and efficient heat dissipation in thin-profile handheld enclosures. |
Pinout & Package
ADP2504ACPZ-5.0-R7 uses a 10-lead 3 mm × 3 mm LFCSP (CP-10-9) package with exposed thermal pad connected to PGND. Pin numbering follows standard QFN orientation (pin 1 marked by dot).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VOUT | Regulated output node | Delivers fixed 5.0 V; requires local 22 µF ceramic capacitor to PGND for stability and transient response. |
| 2 SW2 | Buck-boost power switch node (PMOS1/NMOS2) | Connects to inductor; high di/dt path requiring short, wide copper trace to minimize EMI and voltage spikes. |
| 3 PGND | Power ground reference | Return path for high-current switching loops; must be tied directly to exposed pad and shared with input/output capacitors. |
| 4 SW1 | Buck-boost power switch node (NMOS1/PMOS2) | Second inductor connection point; forms complementary switching pair with SW2 for bidirectional energy transfer. |
| 5 PVIN | Main power input to switching stage | Accepts 2.3–5.5 V; requires 10 µF ceramic capacitor placed adjacent to pin for low-impedance decoupling. |
| 6 EN | Enable/shutdown control input | Active-high logic; pulling low disables regulator and reduces input current to 0.2 µA, enabling system-level power gating. |
| 7 SYNC | Mode selection and clock synchronization input | Configures PSM (low), forced PWM (high), or external sync (2.2–2.8 MHz square wave); critical for noise-sensitive RF coexistence. |
| 8 VIN | Analog supply for internal circuitry | Must be decoupled separately; powers error amplifier, reference, and control logic-decoupling prevents regulation instability. |
| 9 AGND | Analog ground reference | Separate from PGND to isolate noise-sensitive analog blocks; connected to system AGND plane with minimal impedance. |
| 10 FB | Feedback input | Internally connected to 500 mV reference for fixed-output variants; not user-accessible on ADP2504ACPZ-5.0-R7 (no external divider needed). |
Key Features
| Feature | Design Value |
|---|---|
| Seamless buck-boost mode transition | Automatic operation across VIN = 2.3–5.5 V with VOUT = 5.0 V, eliminating need for external mode control logic or sequencing. |
| Load disconnect in boost configuration | True isolation between input and output during shutdown, preventing backfeed and enabling safe hot-swap of battery or USB source. |
| Three SYNC operation modes | Enables design flexibility: light-load efficiency (PSM), EMI-controlled fixed-frequency PWM, or synchronized switching in multi-rail systems. |
| Internal compensation | Reduces BOM count by eliminating external compensation network; simplifies layout and improves production yield for compact designs. |
| Soft start (200 µs) | Limits inrush current to <600 mA with 20 µF output capacitance, preventing input rail collapse and protecting upstream power sources. |
Applications
| Wireless Handset Power Management | Digital Camera Core Rail |
|---|---|
|
Use Scenario: Powering baseband processor, RF transceiver, and display backlight from single Li+ cell with varying voltage (4.2 V → 3.0 V). IC Role / Device Role / Timing Role: Buck-boost regulator maintaining stable 5.0 V rail independent of battery state, enabling uninterrupted call/data sessions. Use Value: Eliminates need for separate buck and boost stages; 38 µA quiescent current extends standby time beyond 72 hours. |
Use Scenario: Supplying image sensor, ISP, and flash LED driver in compact digital camera with USB charging and battery backup. IC Role / Device Role / Timing Role: Primary 5.0 V power source with load disconnect, isolating sensor subsystem when powered off to prevent leakage. Use Value: 1 A output supports burst-mode imaging; 2.5 MHz switching allows 1.5 µH inductor fitting into <8 mm² board area. |
| USB-Powered Audio Interface | Miniature Hard Disk Drive (HDD) Logic Supply |
|
Use Scenario: Providing clean, regulated 5.0 V to DAC, headphone amp, and microcontroller in bus-powered USB audio interface. IC Role / Device Role / Timing Role: Input-capable buck-boost converter accepting USB 5 V or degraded host port voltage while rejecting noise via SYNC-synchronized operation. Use Value: Forced PWM mode eliminates audible switching noise in audio band; 10-lead LFCSP minimizes footprint on dense USB-C PCB. |
Use Scenario: Generating 5.0 V logic supply for 2.5-inch HDD controller in portable storage enclosures powered by USB or external adapter. IC Role / Device Role / Timing Role: High-efficiency step-up/step-down regulator handling input dips during HDD spin-up and brownouts. Use Value: Short-circuit and thermal protection prevent latch-up during mechanical shock-induced load faults; 150°C shutdown ensures reliability under enclosure thermal stress. |
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 | 2.5 V–6.0 V input, 5.0 V fixed output, 2.0 A max, 2.4 MHz switching, 21 µA IQ, 10-pin WSON | Higher output current and lower quiescent current, but lacks true load disconnect and has different pinout. | Preferred for higher-current 5 V rails where load isolation is not required and board layout allows WSON rework. |
| MAX77827BEWC+T | 2.5 V–5.5 V input, 5.0 V fixed output, 1.2 A max, 2.0 MHz switching, 30 µA IQ, 12-pin WLP | Smaller 1.68 mm × 1.68 mm WLP package and integrated I2C interface, but no SYNC pin or PSM mode. | Selected when ultra-small footprint and digital control are prioritized over analog mode flexibility and EMI control. |
Compared with TPS63020DSJR and MAX77827BEWC+T, the ADP2504ACPZ-5.0-R7 uniquely combines load disconnect, three-mode SYNC control, and seamless buck-boost transition in a thermally optimized 3 mm × 3 mm LFCSP-making it optimal for noise-sensitive, battery-critical portable systems requiring robust fault protection.
Availability
ADP2504ACPZ-5.0-R7 is available at Aetrix Electronics and suitable for wireless handsets, digital cameras, and USB-powered audio interfaces requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for ADP2504ACPZ-5.0-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 since 1965.
The ADP2504ACPZ-5.0-R7 belongs to Analog Devices' ADP2503/ADP2504 buck-boost converter family, engineered specifically for space-constrained, battery-powered portable electronics needing high efficiency across wide input ranges and robust protection features.
FAQ
What is the maximum output current capability of the ADP2504ACPZ-5.0-R7?
The ADP2504ACPZ-5.0-R7 delivers up to 1000 mA continuous output current at 5.0 V under typical conditions (TA = 25°C, VIN = 3.6 V). Its switch current limit is specified from 1.3 A to 2.0 A, allowing brief peak loads beyond 1 A while maintaining thermal safety per its 150°C junction shutdown threshold.
Does the ADP2504ACPZ-5.0-R7 require external feedback resistors to set the output voltage?
No. The ADP2504ACPZ-5.0-R7 is a fixed-output variant with internally trimmed 5.0 V regulation. Its FB pin is pre-connected to the internal 500 mV reference, eliminating the need for external resistor dividers-reducing component count and improving accuracy versus adjustable alternatives.
How does the ADP2504ACPZ-5.0-R7 handle input voltage transitions across the 5.0 V output level?
The ADP2504ACPZ-5.0-R7 automatically transitions between buck, boost, and buck-boost modes as VIN varies from 2.3 V to 5.5 V. When VIN > 5.5 V (not supported), it operates in buck mode; when VIN < 5.0 V, it enters boost; and within ±10% of 5.0 V, it uses interleaved buck-boost to maintain regulation with minimal inductor ripple.
Can the ADP2504ACPZ-5.0-R7 be synchronized to an external clock source?
Yes. Driving the SYNC pin with a 2.2 MHz–2.8 MHz square wave synchronizes the ADP2504ACPZ-5.0-R7's switching frequency to the external clock. This feature suppresses beat frequencies in multi-converter systems and reduces EMI in RF-sensitive applications such as cellular modems or Wi-Fi modules.
What thermal management considerations apply to the ADP2504ACPZ-5.0-R7 in high-load operation?
The ADP2504ACPZ-5.0-R7 has a θJA of 84°C/W on a 4-layer board. At 1 A output with 5.0 V out and 3.6 V in (η ≈ 90%), power dissipation is ~0.78 W, resulting in ~66°C rise above ambient. To stay within the 125°C max junction limit, keep ambient ≤59°C or enhance thermal relief via the exposed pad, multiple vias to inner ground planes, and copper pour.
ADP2504ACPZ-5.0-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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- 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-5.0-R7 FAQ
1.How can I place an order for ADP2504ACPZ-5.0-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2504ACPZ-5.0-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-5.0-R7 reliable?
The price and inventory of ADP2504ACPZ-5.0-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-5.0-R7 is usually 5 days.
3.What payment methods are accepted for ADP2504ACPZ-5.0-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2504ACPZ-5.0-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2504ACPZ-5.0-R7?
ADP2504ACPZ-5.0-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2504ACPZ-5.0-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-5.0-R7?
For technical support, including ADP2504ACPZ-5.0-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2504ACPZ-5.0-R7 requirements.
6.How does Aetrix verify that ADP2504ACPZ-5.0-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2504ACPZ-5.0-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-5.0-R7 meets industry standards.
7.What is the process for return or replacement of ADP2504ACPZ-5.0-R7?
All ADP2504ACPZ-5.0-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2504ACPZ-5.0-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-5.0-R7 part is unused and in its original packaging.
Return procedure for ADP2504ACPZ-5.0-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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