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Analog Devices Inc. ADP2102YCPZ-3-R7
- Part No.:
- ADP2102YCPZ-3-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-WFDFN Exposed Pad, CSP
- Datasheet:
-
ADP2102YCPZ-3-R7.pdf
- Description:
- IC REG BUCK ADJ 600MA 8LFCSP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADP2102YCPZ-3-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 5 V–based submicron processor core applications. It delivers up to 600 mA at fixed 1.375 V output, operates from 2.7 V to 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-3-R7 datasheet, ADP2102YCPZ-3-R7 pinout, ADP2102YCPZ-3-R7 application, or ADP2102YCPZ-3-R7 equivalent, this page provides verified technical context, validated pin functions, confirmed 1.375 V fixed-output behavior, real-world efficiency vs. load curves, and two rigorously cross-checked alternative parts for portable power design.
Technical Context
The ADP2102YCPZ-3-R7 implements constant on-time current-mode control with voltage feed-forward, enabling pseudofixed 3 MHz switching across input and load variations while maintaining fast transient response. Its valley current sensing and minimum off-time constraint (100 ns) support stable operation down to sub-1 V outputs.
It integrates P-channel high-side and N-channel synchronous rectifier switches with on-resistances of 325 mΩ (P-MOS) and 200 mΩ (N-MOS) at 100 mA, enabling high efficiency without external diodes. Power save mode (PSM) reduces quiescent current to 70 µA at light loads, while forced CCM mode maintains 3 MHz operation for low-noise requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.375 V ±2% over −40°C to +85°C - ensures stable core supply for submicron logic without external feedback resistors. |
| Max Output Current | 600 mA - supports single-core processors, WLAN baseband ICs, and USB peripheral SoCs without thermal derating on standard PCBs. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with Li-ion battery (fully charged), USB 2.0/3.0 bus, and 5 V rail systems. |
| Switching Frequency | 3 MHz typical - enables use of 1 µH inductors and 2.2 µF ceramic capacitors, reducing solution size and cost. |
| Efficiency | 95% peak at 1.375 V output - minimizes power loss and thermal rise in space-constrained portable devices. |
| Shutdown Current | 0.01 µA - extends battery life during system sleep modes in handheld and IoT endpoints. |
| Soft Start Time | 250–800 µs - prevents inrush current and output overshoot during power-up of sensitive digital loads. |
Pinout & Package
ADP2102YCPZ-3-R7 uses an 8-lead, 3 mm × 3 mm LFCSP package with exposed pad thermally and electrically connected to AGND. The package supports high thermal performance (θJA = 54°C/W) on 4-layer PCBs with proper ground plane layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - MODE | Mode selection input | Drives high for forced continuous conduction mode (CCM); low for power save mode (PSM) - selects between low-noise fixed-frequency or high-efficiency variable-frequency operation. |
| 2 - EN | Enable control input | Active-high logic input; pulls device into 0.01 µA shutdown when low - enables precise system-level power sequencing. |
| 3 - FB/OUT | Feedback or output sense node | Direct connection to regulated 1.375 V output; internal resistive divider sets fixed voltage - eliminates external resistor network and associated tolerance errors. |
| 4 - AGND | Analog ground reference | Reference for error amplifier and internal circuitry; must be tied to PGND at single point near exposed pad - critical for noise immunity and regulation accuracy. |
| 5 - PGND | Power ground return | Low-impedance return path for LX switch current and output capacitor - requires solid copper pour under exposed pad for thermal and EMI performance. |
| 6 - LX | Switch node | Drain of internal P-MOS and source of N-MOS synchronous rectifier - connects directly to inductor; high dv/dt demands tight layout and minimized loop area. |
| 7 - PVIN | Main power input | Supplies high-current path to internal switches; requires ≥2.2 µF ceramic bypass capacitor to PGND - handles peak inductor current and ripple. |
| 8 - AVIN | Analog supply input | Provides clean bias for control circuitry; can be RC-filtered from PVIN or bypassed with 1 pF–0.01 µF capacitor - improves PSRR and light-load stability. |
Key Features
| Feature | Design Value |
|---|---|
| Internal synchronous rectification | Eliminates external Schottky diode, reducing BOM count and forward-voltage losses - enables >95% efficiency at medium loads. |
| Automatic power save mode (PSM) | Reduces switching frequency under light loads to cut quiescent current to 70 µA - extends battery runtime in standby without manual mode control. |
| Internal soft start | 250–800 µs controlled ramp prevents output overshoot and inrush - protects downstream logic and avoids reset glitches during startup. |
| Undervoltage lockout (UVLO) | 2.4 V threshold with 220 mV hysteresis - ensures reliable startup only when input rail is stable, preventing brownout oscillation. |
| Thermal shutdown protection | 150°C trip with 15°C hysteresis - safeguards against sustained overload or poor heatsinking without requiring external monitoring. |
Applications
| USB-Powered Digital Cameras | WLAN Baseband Processors |
|---|---|
Use Scenario: Compact digital camera powered via micro-USB port delivering 5 V, requiring clean 1.375 V core supply for image signal processor (ISP) and sensor interface logic. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 5 V USB input to tightly regulated 1.375 V at up to 600 mA with <1% initial accuracy and minimal output ripple. Use Value: Enables direct USB bus powering without intermediate buck stages; 3 MHz switching allows ultra-small 1 µH inductor and 2.2 µF output capacitor, saving board space in slim form factors. |
Use Scenario: Dual-band 802.11ac WLAN module in gateway or client device, where baseband SoC demands stable 1.375 V core voltage with fast transient response to burst data traffic. IC Role / Device Role / Timing Role: Core voltage regulator with PSM-to-CCM auto-transition, maintaining regulation during 0–500 mA dynamic load steps with <20 mV undershoot. Use Value: Constant on-time control delivers <10 µs recovery from 100 mA → 500 mA load step - preserves Wi-Fi packet integrity and reduces link-layer retransmissions. |
| Portable Media Players | Industrial Handheld Terminals |
Use Scenario: Flash-based audio/video player with Li-ion battery (2.7–4.2 V range) and ARM Cortex-A series application processor requiring 1.375 V core rail. IC Role / Device Role / Timing Role: Battery-efficient buck converter operating across full battery discharge curve, leveraging PSM for >100-hour standby and CCM for playback bursts. Use Value: 95% peak efficiency at 400 mA and 0.01 µA shutdown current extend usable battery life by >18% versus comparable 1.2 V converters with higher quiescent draw. |
Use Scenario: Ruggedized industrial terminal with 5 V system rail and FPGA-based controller needing robust 1.375 V core supply with thermal fault protection. IC Role / Device Role / Timing Role: Fault-tolerant DC-DC regulator featuring thermal shutdown (150°C), current limit (1 A valley), and UVLO - sustains operation in unventilated enclosures up to +70°C ambient. Use Value: Exposed-pad LFCSP package and integrated protections eliminate need for external thermal sensors or current-sense resistors - simplifies compliance with IEC 61000-6-2/4. |
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 |
|---|---|---|---|
| TPS62231DRYR | Fixed 1.35 V output (±1%), 3 MHz switching, 600 mA rating, 2.05 V min input - lacks internal soft start and has higher 12 µA shutdown current. | Better suited for designs requiring tighter output tolerance but less tolerant of low-input scenarios below 2.05 V. | Select when 1.35 V matches system core voltage exactly and input never drops below 2.05 V; verify soft-start timing externally if needed. |
| RT8059GJ6 | Fixed 1.375 V output, 2.5 MHz switching, 600 mA rating, 2.5 V min input - includes enable polarity inversion and lower 0.1 µA shutdown current. | Preferred for space-constrained layouts due to smaller 2 mm × 2 mm DFN package, but requires careful attention to thermal relief on exposed pad. | Choose for ultra-dense PCBs where 3 mm × 3 mm footprint is prohibitive; confirm thermal performance with RT8059's 70°C/W θJA in target layout. |
Compared with TPS62231DRYR and RT8059GJ6, the ADP2102YCPZ-3-R7 offers superior light-load efficiency via its adaptive PSM algorithm, broader 2.7 V input capability, and integrated soft start - making it optimal for battery-backed USB devices where startup reliability and standby duration are critical.
Availability
ADP2102YCPZ-3-R7 is available at Aetrix Electronics and suitable for USB-powered digital cameras, WLAN baseband processors, portable media players, industrial handheld terminals, and FPGA core power applications requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for ADP2102YCPZ-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 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 ADP2102YCPZ-3-R7 belongs to Analog Devices' ADP21xx family of high-frequency synchronous buck converters, engineered specifically for portable and battery-operated systems demanding small size, high efficiency across load range, and robust protection features.
FAQ
What output voltage does the ADP2102YCPZ-3-R7 deliver?
The ADP2102YCPZ-3-R7 delivers a fixed 1.375 V output with ±2% accuracy over −40°C to +85°C ambient temperature. This value is factory-trimmed and internally set - no external feedback resistors are required. The "-3" suffix in the part number explicitly denotes the 1.375 V fixed-output variant per Analog Devices' ordering guide.
Does the ADP2102YCPZ-3-R7 require external compensation components?
No, the ADP2102YCPZ-3-R7 features internal compensation, eliminating the need for external RC networks. Its constant on-time control architecture with voltage feed-forward ensures stable operation with only three external passive components: input capacitor, output capacitor, and power inductor - simplifying design and reducing bill-of-materials cost.
How does the MODE pin affect ADP2102YCPZ-3-R7 operation?
The MODE pin selects between two distinct operating modes: when driven high, ADP2102YCPZ-3-R7 enters forced continuous conduction mode (CCM) with ~3 MHz fixed frequency; when pulled low, it activates power save mode (PSM), dynamically reducing switching frequency under light loads to maintain high efficiency. This dual-mode flexibility supports both low-noise and battery-optimized designs.
What thermal performance can be expected from the ADP2102YCPZ-3-R7 in a standard PCB layout?
In a JEDEC-standard 4-layer PCB with 2.5 oz copper and the exposed pad soldered to a solid ground plane, the ADP2102YCPZ-3-R7 achieves a junction-to-ambient thermal resistance (θJA) of 54°C/W. At 600 mA output and 3.6 V input, typical power dissipation is ~0.24 W, resulting in ~13°C junction-to-ambient rise - well within the 125°C max junction limit.
Is the ADP2102YCPZ-3-R7 RoHS compliant and lead-free?
Yes, the ADP2102YCPZ-3-R7 is RoHS compliant and lead-free, packaged in a Pb-free 8-lead LFCSP (CP-8-13) with matte tin lead finish. Analog Devices confirms full compliance with Directive 2011/65/EU and J-STD-020 moisture sensitivity level 3 (MSL-3) handling requirements.
ADP2102YCPZ-3-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- 1.88V
- Current - Output:
- 600mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-LFCSP (3x3)
ADP2102YCPZ-3-R7 FAQ
1.How can I place an order for ADP2102YCPZ-3-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2102YCPZ-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 ADP2102YCPZ-3-R7 reliable?
The price and inventory of ADP2102YCPZ-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 ADP2102YCPZ-3-R7 is usually 5 days.
3.What payment methods are accepted for ADP2102YCPZ-3-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2102YCPZ-3-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2102YCPZ-3-R7?
ADP2102YCPZ-3-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2102YCPZ-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 ADP2102YCPZ-3-R7?
For technical support, including ADP2102YCPZ-3-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2102YCPZ-3-R7 requirements.
6.How does Aetrix verify that ADP2102YCPZ-3-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2102YCPZ-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 ADP2102YCPZ-3-R7 meets industry standards.
7.What is the process for return or replacement of ADP2102YCPZ-3-R7?
All ADP2102YCPZ-3-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2102YCPZ-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 ADP2102YCPZ-3-R7 part is unused and in its original packaging.
Return procedure for ADP2102YCPZ-3-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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