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Analog Devices Inc. ADP2106ACPZ-R7
- Part No.:
- ADP2106ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WQFN Exposed Pad, CSP
- Datasheet:
-
ADP2106ACPZ-R7.pdf
- Description:
- IC REG BUCK ADJ 1.5A 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:849
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Product details
Overview
ADP2106ACPZ-R7 from Analog Devices is a 1.5 A synchronous step-down DC-DC converter in a 4 mm × 4 mm LFCSP package, operating from 2.7 V to 5.5 V input and delivering adjustable (0.8 V to VIN) or preset output voltages. It features 1.2 MHz fixed-frequency PWM control, ultralow 20 µA quiescent current, and seamless transition to PFM mode under light load for extended battery life in portable systems.
For engineers reviewing the ADP2106ACPZ-R7 datasheet, ADP2106ACPZ-R7 pinout, ADP2106ACPZ-R7 application, or ADP2106ACPZ-R7 equivalent, key selection criteria include its 1.5 A maximum load capability, 97% peak efficiency, 100% duty cycle LDO-mode operation, integrated synchronous rectifier, and support for ceramic output capacitors with minimal external components.
Technical Context
The ADP2106ACPZ-R7 implements a peak-current-mode, constant-frequency PWM architecture at medium-to-heavy loads for stable regulation and fast transient response, while automatically shifting to pulse-frequency modulation (PFM) under light load to reduce switching losses and maintain high efficiency down to µA-level currents. Its dual-mode control preserves regulation accuracy across 0–1.5 A load range without external mode-select circuitry.
It integrates a 100 mΩ P-channel high-side switch and 90 mΩ N-channel synchronous rectifier, enabling high-efficiency conversion with low thermal dissipation. The device supports 100% duty cycle operation for low-dropout regulation and includes undervoltage lockout (2.4 V threshold), programmable soft start (via SS pin), and internal compensation via COMP node.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Current | 1.5 A - Sustained continuous load capability without thermal shutdown under typical PCB layout and ambient conditions. |
| Input Voltage Range | 2.7 V to 5.5 V - Compatible with single Li+/Li− polymer cell, multi-cell alkaline/NiMH, PCMCIA, and USB-powered rails. |
| Switching Frequency | 1.2 MHz (typ) - Enables use of small inductors (e.g., 2–4.1 µH) and ceramic capacitors, minimizing solution footprint. |
| Quiescent Current | 20 µA (typ) - Extends battery runtime in always-on or standby modes of portable electronics. |
| Feedback Reference | 0.8 V ±2% - Enables precise output voltage setting from 0.8 V to VIN using external resistor divider. |
| Peak Efficiency | 97% - Achieved at mid-load (e.g., 500 mA–1 A) with 3.6 V input and 1.8 V output, reducing power loss and heat generation. |
| Shutdown Current | 0.1 µA - Minimizes system leakage during powered-off states, critical for long-term storage or sleep modes. |
Pinout & Package
ADP2106ACPZ-R7 uses a 16-lead, 4 mm × 4 mm LFCSP package with exposed thermal pad soldered to PCB ground plane. Pin functions are validated per Analog Devices Rev. E datasheet Figure 4 and Table 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable logic input | Active-high digital control: drives device ON/OFF; pulls input current to ≤0.1 µA in shutdown state. |
| IN (Pin 14) | Main power supply input | Supplies internal bias circuitry; requires local 0.1 µF bypass to AGND and series 10 Ω resistor to PWIN1. |
| PWIN1/PWIN2 (Pins 9,13) | High-side switch source inputs | Direct connection points for P-channel MOSFET source; each must be bypassed with ≥4.7 µF capacitor to PGND. |
| LX1/LX2 (Pins 10,12) | Switch node outputs | Drain terminals of integrated P-FET and N-FET; must be tied together and connected to LC filter inductor. |
| PGND (Pin 11) | Power ground return | Low-impedance return path for all input/output capacitors; connected directly to exposed thermal pad. |
| AGND (Pin 7) | Analog ground reference | Reference node for FB, COMP, SS, and compensation network; must be star-connected near IC and tied to exposed pad. |
| FB (Pin 16) | Output voltage feedback | Sense input referenced to 0.8 V internal bandgap; sets output voltage via external resistive divider for ADJ variants. |
| COMP (Pin 5) | Compensation node | Error amplifier output; requires RC network to AGND for loop stability-design tool ADIsimPower™ recommended. |
| SS (Pin 6) | Soft-start timing input | Capacitor-to-AGND sets startup ramp time (e.g., 1 nF → 1 ms); limits inrush current and prevents output overshoot. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous rectification | Eliminates external Schottky diode, reduces conduction loss, and improves full-load efficiency by >5% vs. asynchronous designs. |
| 100% duty cycle LDO mode | Maintains regulation when VIN approaches VOUT, enabling seamless dropout operation without output collapse. |
| Ultralow quiescent current (20 µA) | Extends battery life in always-on applications such as real-time clocks, sensor nodes, and wearable standby circuits. |
| Programmable soft start | Prevents input surge and output overshoot during power-up; configurable via external capacitor on SS pin. |
| Thermal shutdown with hysteresis | Triggers at 140°C junction temperature and releases at 100°C, preventing thermal runaway during overload or poor heatsinking. |
Applications
| Mobile Handsets | Telecom Equipment |
|---|---|
Use Scenario: Powering baseband processor core voltage (1.2 V/1.5 V) from single-cell Li+ battery (3.0–4.2 V). IC Role / Device Role / Timing Role: Primary buck regulator delivering tightly regulated, low-noise core supply with fast load-transient response. Use Value: 97% efficiency at 1 A extends talk time; 20 µA quiescent current preserves battery charge during idle/sleep states. |
Use Scenario: Generating 3.3 V I/O rail for Ethernet PHYs and FPGA configuration in compact access point modules. IC Role / Device Role / Timing Role: High-density, low-profile DC-DC stage replacing discrete solutions to meet space-constrained board layouts. Use Value: 4 mm × 4 mm LFCSP footprint saves >40% area vs. SOIC-8 alternatives; 1.2 MHz switching enables <2.2 µH inductors. |
| PDA & Palmtop Computers | Set-Top Boxes |
Use Scenario: Supplying 1.8 V memory interface (SDRAM, NAND flash) from 5 V USB or wall adapter input. IC Role / Device Role / Timing Role: Efficient intermediate bus converter supporting dynamic voltage scaling and burst-mode operation. Use Value: Seamless PWM-to-PFM transition maintains >85% efficiency from 10 mA to 1.5 A, reducing thermal load during video playback. |
Use Scenario: Providing clean 1.2 V core supply to ARM-based media processor in low-power streaming devices. IC Role / Device Role / Timing Role: Primary point-of-load regulator with integrated soft start and UVLO to ensure reliable cold-boot sequencing. Use Value: 0.1 µA shutdown current enables true zero-power standby; 100% duty cycle supports brownout tolerance during line dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 1.8 A max output, 2.05–6.0 V input, 2.25 MHz switching, 17 µA IQ, 3 × 3 mm DSBGA | Higher switching frequency enables smaller magnetics but increases EMI sensitivity; no PFM mode-uses forced PWM only. | Preferred for ultra-compact designs where size outweighs light-load efficiency; not drop-in due to different pinout and control scheme. |
| RT8059GJ6 | 1.5 A max output, 2.5–5.5 V input, 1.5 MHz switching, 30 µA IQ, 2 × 2 mm WDFN | Higher quiescent current reduces battery life in always-on applications; lacks 100% duty cycle mode and integrated soft start. | Cost-optimized alternative for non-battery applications; requires external soft-start circuit and additional compensation components. |
Compared with TPS62231DRYR and RT8059GJ6, ADP2106ACPZ-R7 delivers superior light-load efficiency via PFM mode, guaranteed 100% duty cycle operation for low-dropout resilience, and factory-validated loop compensation-reducing design risk in portable and battery-critical systems.
Availability
ADP2106ACPZ-R7 is available at Aetrix Electronics and suitable for mobile handsets, telecom equipment, and set-top boxes requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for ADP2106ACPZ-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, headquartered in Norwood, MA, with deep expertise in power management, precision conversion, and RF technologies.
The ADP2106ACPZ-R7 belongs to Analog Devices' ADP210x family of high-efficiency, low-quiescent-current buck converters designed specifically for battery-powered portable electronics where size, efficiency, and standby power are critical constraints.
FAQ
What is the maximum output current rating of the ADP2106ACPZ-R7?
The ADP2106ACPZ-R7 is rated for a continuous maximum output current of 1.5 A under standard thermal conditions (θJA = 40°C/W, 4-layer board, exposed pad soldered). This rating is validated across −40°C to +125°C junction temperature and assumes proper PCB layout with adequate copper pour on PGND and thermal pad. Peak current limit is 2.25 A (typ) at 25°C.
Does the ADP2106ACPZ-R7 support adjustable output voltage?
Yes, the ADP2106ACPZ-R7 supports adjustable output voltage from 0.8 V to VIN using an external resistor divider connected to the FB pin. Its internal feedback reference is precisely trimmed to 0.8 V ±2% over temperature. Fixed-output variants (e.g., 1.2 V, 1.5 V, 1.8 V, 3.3 V) are also available-but ADP2106ACPZ-R7 itself is the adjustable version.
How does the ADP2106ACPZ-R7 manage efficiency at light load?
The ADP2106ACPZ-R7 automatically transitions from fixed-frequency PWM mode to variable-frequency PFM mode below a load-dependent pulse-skipping threshold (e.g., ~120 mA at VIN = 3.6 V, VOUT = 1.8 V). This reduces switching losses and maintains >85% efficiency down to 10 mA, enabled by ultralow 20 µA quiescent current and optimized gate drive.
What package type and thermal characteristics does the ADP2106ACPZ-R7 have?
The ADP2106ACPZ-R7 uses a 16-lead, 4 mm × 4 mm LFCSP package with exposed thermal pad. Its thermal resistance is θJA = 40°C/W under JEDEC-standard 4-layer board conditions. Thermal shutdown activates at 140°C junction temperature with 40°C hysteresis, and the exposed pad must be soldered to a solid ground plane for optimal thermal performance.
Can the ADP2106ACPZ-R7 operate in 100% duty cycle mode?
Yes, the ADP2106ACPZ-R7 supports true 100% duty cycle operation, allowing it to maintain regulation even when input voltage drops close to the output voltage-functioning like a low-dropout linear regulator. This feature prevents output collapse during brownout conditions and ensures uninterrupted power to sensitive loads.
ADP2106ACPZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-LFCSP (4x4)
ADP2106ACPZ-R7 FAQ
1.How can I place an order for ADP2106ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2106ACPZ-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 ADP2106ACPZ-R7 reliable?
The price and inventory of ADP2106ACPZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2106ACPZ-R7 is usually 5 days.
3.What payment methods are accepted for ADP2106ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2106ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2106ACPZ-R7?
ADP2106ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2106ACPZ-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 ADP2106ACPZ-R7?
For technical support, including ADP2106ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2106ACPZ-R7 requirements.
6.How does Aetrix verify that ADP2106ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2106ACPZ-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 ADP2106ACPZ-R7 meets industry standards.
7.What is the process for return or replacement of ADP2106ACPZ-R7?
All ADP2106ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2106ACPZ-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 ADP2106ACPZ-R7 part is unused and in its original packaging.
Return procedure for ADP2106ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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