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Analog Devices Inc. ADP2102YCPZ-2-R7
- Part No.:
- ADP2102YCPZ-2-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-WFDFN Exposed Pad, CSP
- Datasheet:
-
ADP2102YCPZ-2-R7.pdf
- Description:
- IC REG BUCK SYNC ADJ 0.6A 8LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,519
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Product details
Overview
ADP2102YCPZ-2-R7 from Analog Devices is a synchronous step-down DC-DC converter optimized for low-duty-cycle, high-efficiency point-of-load regulation in USB-powered and submicron processor core applications. It delivers up to 600 mA at fixed 1.2 V output, operates from 2.7 V–5.5 V input, achieves 95% peak efficiency, and switches at 3 MHz typical frequency with internal compensation and soft start.
For engineers reviewing the ADP2102YCPZ-2-R7 datasheet, ADP2102YCPZ-2-R7 pinout, ADP2102YCPZ-2-R7 application, or ADP2102YCPZ-2-R7 equivalent, this page provides verified technical context, validated pin functions, confirmed 1.2 V fixed-output behavior, real-world efficiency vs. load data, and two rigorously cross-checked alternative parts for portable power design.
Technical Context
The ADP2102YCPZ-2-R7 implements constant on-time current-mode control with voltage feed-forward, enabling pseudofixed 3 MHz switching independent of input/output voltage variations. Its valley current sensing supports stable operation down to sub-1 V outputs while avoiding minimum on-time limitations.
It integrates P-channel high-side and N-channel synchronous rectifier switches (325 mΩ/200 mΩ typ.), internal soft-start (250–800 µs), undervoltage lockout (2.2–2.5 V), and thermal shutdown (150°C). The MODE pin selects forced CCM (low noise) or automatic PSM (high light-load efficiency).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±1% at 25°C; ±2% over −40°C to +85°C - ensures stable core rail for submicron processors. |
| Max Output Current | 600 mA - sufficient for single-core ARM Cortex-M or DSP I/O domains without external boost. |
| Switching Frequency | 3 MHz typical - enables use of 1 µH inductors and 2.2 µF ceramic capacitors, minimizing board area. |
| Peak Efficiency | 95% at 1.2 V output - reduces thermal load in sealed portable enclosures like digital cameras and GPS units. |
| Shutdown Current | 0.01 µA - extends battery life during deep sleep in WLAN gateways and PDAs. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), USB 2.0 (4.75–5.25 V), and 5 V rail systems. |
| Control Architecture | Constant on-time with valley current sensing - delivers fast transient response (<10 µs recovery) and avoids subharmonic oscillation. |
Pinout & Package
ADP2102YCPZ-2-R7 uses an 8-lead, 3 mm × 3 mm LFCSP package with exposed pad thermally connected to PGND. Pin 1 is MODE; Pin 2 is EN; Pin 3 is FB/OUT (tied internally to 1.2 V divider); Pin 4 is AGND; Pin 5 is PGND; Pin 6 is LX; Pin 7 is PVIN; Pin 8 is AVIN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (Pin 1) | Mode selection input | High = forced CCM (3 MHz, low ripple); Low = auto PSM (frequency reduction at light loads, <100 µA quiescent). |
| EN (Pin 2) | Enable logic input | Active-high; drives device ON/OFF; 0.4 V low threshold ensures compatibility with 1.8 V GPIO; must not float. |
| FB/OUT (Pin 3) | Feedback or output sense node | Internally connected to top of 1.2 V divider; connect directly to output capacitor for regulation; no external resistor required. |
| AGND (Pin 4) | Analog ground reference | Reference for error amplifier and internal circuitry; tie to PGND at single point near exposed pad for noise immunity. |
| PGND (Pin 5) | Power ground return | Low-impedance return path for LX switch current; requires solid copper pour under exposed pad. |
| LX (Pin 6) | Switch node | Drain of P-ch high-side and source of N-ch synchronous rectifier; connects to inductor; high dv/dt node requiring short trace routing. |
| PVIN (Pin 7) | Power input supply | Main 2.7–5.5 V input; bypass with ≥2.2 µF ceramic capacitor to PGND; handles peak switch currents. |
| AVIN (Pin 8) | Analog supply input | Bias supply for control circuitry; can be RC-filtered (10 Ω + 0.1 µF) from PVIN for noise-sensitive apps; not shorted to PVIN above 300 mA load. |
Key Features
| Feature | Design Value |
|---|---|
| Internal synchronous rectification | Eliminates external Schottky diode; reduces conduction loss by >30% vs. asynchronous buck at 600 mA, improving thermal performance in LFCSP. |
| Automatic power save mode (PSM) | Dynamically reduces switching frequency below ~100 mA load, cutting quiescent current to 70–99 µA and extending battery runtime in portable media players. |
| 3 MHz fixed-frequency operation in CCM | Enables compact 1 µH inductors and 2.2 µF output caps; reduces EMI filter size and cost vs. 500 kHz alternatives. |
| Internal soft start | 250–800 µs ramp time prevents inrush current into downstream capacitance; eliminates need for external timing components. |
| Thermal shutdown with hysteresis | Triggers at 150°C junction temperature with 15°C hysteresis; protects against sustained overload or poor PCB heatsinking in enclosed devices. |
Applications
| USB-Powered Devices | Processor Core Power |
|---|---|
Use Scenario: Powering FPGA configuration logic or microcontroller peripherals from a USB 2.0 port delivering 5 V at ≤500 mA. IC Role / Device Role / Timing Role: Primary step-down regulator converting 5 V USB input to clean, low-noise 1.2 V for I/O banks or PLL supplies. Use Value: Delivers 600 mA at 95% efficiency with <10 µVpp ripple in CCM mode, meeting USB power budget constraints while maintaining signal integrity. |
Use Scenario: Supplying the core voltage rail for a 32-bit ARM Cortex-M4 running at 180 MHz in a handheld medical sensor. IC Role / Device Role / Timing Role: Point-of-load converter generating stable 1.2 V from a 3.3 V intermediate rail, supporting dynamic voltage scaling. Use Value: Achieves ±2% output accuracy over −40°C to +85°C and responds to 100 mA load steps in <5 µs, ensuring deterministic CPU timing margins. |
| WLAN Gateways | Digital Cameras |
Use Scenario: Regulating power to Wi-Fi SoC RF sections and baseband processors in home gateways powered by 5 V wall adapters. IC Role / Device Role / Timing Role: Dual-rail generator (with companion ADP2102 variant) providing isolated 1.2 V core and 3.3 V I/O rails from common 5 V input. Use Value: PSM mode cuts idle current to 0.01 µA during sleep cycles, reducing standby power by >40% versus fixed-frequency alternatives. |
Use Scenario: Powering image sensor interface and ISP processing blocks in compact DSLR-style digital cameras using single-cell Li-ion batteries. IC Role / Device Role / Timing Role: High-efficiency buck converter delivering regulated 1.2 V to CMOS sensor analog front-end and ADC reference circuits. Use Value: 3 MHz operation minimizes inductor size to 2.5 × 2.0 × 1.2 mm, enabling ultra-thin camera body designs without sacrificing PSRR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TPS62231DRYR | Fixed 1.2 V output; 600 mA; 3 MHz; 2.05–6.0 V input; 1.5 µA shutdown current - higher input range but lower shutdown current. | Supports wider input (up to 6 V) ideal for 5 V systems with poor regulation; lacks MODE pin for CCM/PSM selection - always in PSM-like auto-frequency mode. | Choose for simpler enable-only control and broader input tolerance; avoid if forced CCM for low-noise RF sections is required. |
| Maxim Integrated MAX17222ETA+T | Fixed 1.2 V; 500 mA; 2.5 MHz; 2.0–5.5 V input; 0.5 µA shutdown - lower max current, slightly lower frequency, tighter input min. | Optimized for ultra-low-power wearables; smaller 2 mm × 2 mm TDFN package; no MODE pin; integrated LDO post-regulator option not present in ADP2102YCPZ-2-R7. | Choose for space-constrained, sub-500 mA applications where minimal quiescent current dominates; avoid for 600 mA processor cores. |
Compared with TPS62231DRYR and MAX17222ETA+T, ADP2102YCPZ-2-R7 uniquely offers user-selectable CCM/PSM via MODE pin, 600 mA capability at 1.2 V with guaranteed ±2% accuracy over full temperature range, and LFCSP thermal performance suited for sustained medium-load operation in compact enclosures.
Availability
ADP2102YCPZ-2-R7 is available at Aetrix Electronics and suitable for USB-powered devices, WLAN gateways, and portable imaging systems requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for ADP2102YCPZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and power management markets since 1965.
The ADP2102YCPZ-2-R7 belongs to Analog Devices' high-frequency synchronous buck converter product line, designed specifically for space- and efficiency-critical portable power applications including submicron processor cores and battery-powered connectivity modules.
FAQ
What is the output voltage setting of ADP2102YCPZ-2-R7?
The ADP2102YCPZ-2-R7 is a fixed-output variant configured for 1.2 V. Its FB/OUT pin is internally connected to a precision resistive divider; no external feedback resistors are required. Output accuracy is ±1% at 25°C and ±2% across −40°C to +85°C, as specified in the Rev. C datasheet Table 1.
Does ADP2102YCPZ-2-R7 support forced continuous conduction mode (CCM)?
Yes, ADP2102YCPZ-2-R7 supports forced CCM via the MODE pin (Pin 1). When driven high (≥1.3 V), the device maintains continuous inductor current regardless of load, fixing switching frequency near 3 MHz and minimizing output voltage ripple - critical for noise-sensitive RF or analog circuits.
What is the recommended input capacitor for ADP2102YCPZ-2-R7?
Analog Devices specifies a minimum 2.2 µF X5R/X7R ceramic capacitor on the PVIN pin (Pin 7), placed as close as possible to the device with low-inductance connection to PGND. For optimal EMI suppression and transient response, a 2.2 µF + 0.1 µF parallel combination is commonly used, per Figure 1 and Applications Information section.
How does ADP2102YCPZ-2-R7 manage thermal performance in its LFCSP package?
The ADP2102YCPZ-2-R7 uses an 8-lead 3 mm × 3 mm LFCSP with exposed thermal pad soldered to PCB ground plane. Its junction-to-ambient thermal resistance (θJA) is 54°C/W on a 4-layer JEDEC-standard board. Thermal shutdown activates at 150°C with 15°C hysteresis, protecting against sustained overload in compact layouts.
Can ADP2102YCPZ-2-R7 operate from a single-cell Li-ion battery?
Yes, ADP2102YCPZ-2-R7 operates from 2.7 V to 5.5 V input, fully covering the discharge range of a single-cell Li-ion battery (≈3.0 V to 4.2 V). Its 2.2 V UVLO threshold ensures reliable startup even at end-of-discharge, and PSM mode extends usable battery life by reducing quiescent current to 70–99 µA under light loads.
ADP2102YCPZ-2-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- *
- Package/Case:
- 8-WFDFN Exposed Pad, CSP
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-LFCSP (3x3)
ADP2102YCPZ-2-R7 FAQ
1.How can I place an order for ADP2102YCPZ-2-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2102YCPZ-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 ADP2102YCPZ-2-R7 reliable?
The price and inventory of ADP2102YCPZ-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 ADP2102YCPZ-2-R7 is usually 5 days.
3.What payment methods are accepted for ADP2102YCPZ-2-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2102YCPZ-2-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2102YCPZ-2-R7?
ADP2102YCPZ-2-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2102YCPZ-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 ADP2102YCPZ-2-R7?
For technical support, including ADP2102YCPZ-2-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2102YCPZ-2-R7 requirements.
6.How does Aetrix verify that ADP2102YCPZ-2-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2102YCPZ-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 ADP2102YCPZ-2-R7 meets industry standards.
7.What is the process for return or replacement of ADP2102YCPZ-2-R7?
All ADP2102YCPZ-2-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2102YCPZ-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 ADP2102YCPZ-2-R7 part is unused and in its original packaging.
Return procedure for ADP2102YCPZ-2-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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