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Analog Devices Inc. ADP2107ACPZ-1.8-R7
- Part No.:
- ADP2107ACPZ-1.8-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WQFN Exposed Pad, CSP
- Datasheet:
-
ADP2107ACPZ-1.8-R7.pdf
- Description:
- IC REG BUCK 1.8V 2A 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
ADP2107ACPZ-1.8-R7 from Analog Devices is a 2 A synchronous step-down DC-to-DC converter in a 4 mm × 4 mm LFCSP package, operating from 2.7 V to 5.5 V input and delivering a fixed 1.8 V output with ±1% accuracy over temperature and load. It features 1.2 MHz switching frequency, 97% peak efficiency at 1 A, ultralow 20 µA quiescent current, and integrated P-channel high-side switch (100 mΩ typical) and N-channel synchronous rectifier (90 mΩ typical). It is used in power rails for mobile processors and baseband ICs requiring stable low-voltage, high-current supply.
For engineers reviewing the ADP2107ACPZ-1.8-R7 datasheet, ADP2107ACPZ-1.8-R7 pinout, ADP2107ACPZ-1.8-R7 application, or ADP2107ACPZ-1.8-R7 equivalent, key selection criteria include its 2 A continuous output capability, 1.8 V preset output with ±1.5% total tolerance (−40°C to +125°C), 100% duty cycle LDO-mode operation, and compatibility with small ceramic output capacitors without external compensation.
Technical Context
The ADP2107ACPZ-1.8-R7 employs a peak-current-mode PWM control architecture at medium-to-heavy loads and transitions seamlessly to pulse-frequency modulation (PFM) under light load to maintain high efficiency down to 10 mA. Its dual-mode operation is managed by an internal zero-cross comparator and slope-compensated current-sense amplifier with gain of 3.625 A/V.
It integrates both power switches - a P-channel high-side MOSFET (100 mΩ typ.) and N-channel synchronous rectifier (90 mΩ typ.) - enabling >95% efficiency at 500 mA with VIN = 3.6 V and VOUT = 1.8 V. The device supports smooth 100% duty cycle operation for low-dropout regulation and includes undervoltage lockout (2.2 V falling threshold) and thermal shutdown (140°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A continuous - supports high-current digital core rails without external current sharing. |
| Output Voltage | Fixed 1.8 V ±1% (25°C), ±1.5% (−40°C to +125°C) - eliminates external feedback resistors and ensures tight regulation for processor I/O domains. |
| Input Range | 2.7 V to 5.5 V - compatible with single Li+/Li− polymer cells, multi-cell alkaline/NiMH, and PCMCIA supplies. |
| Switching Frequency | 1.2 MHz (±167 kHz) - enables use of sub-3 µH inductors and compact 10–22 µF ceramic output capacitors. |
| Quiescent Current | 20 µA (typ.) - extends battery life in always-on subsystems such as PMIC backup rails or sensor hubs. |
| Efficiency | 97% peak (VIN = 3.6 V, VOUT = 1.8 V, IOUT = 1 A) - reduces thermal load in space-constrained portable PCBs. |
| Shutdown Current | 0.1 µA - ensures negligible battery drain during system sleep or standby modes. |
Pinout & Package
ADP2107ACPZ-1.8-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 TTL-compatible control; pulls input current to 0.1 µA in shutdown - enables precise power sequencing. |
| IN (Pin 14) | Main power input | Supplies internal bias circuitry; requires local 0.1 µF bypass to AGND - decouples noise from control loop. |
| PWIN1/PWIN2 (Pins 9, 13) | High-side switch source inputs | Direct connection points to P-channel MOSFET sources; each requires ≥4.7 µF ceramic capacitor to PGND - minimizes high di/dt loop inductance. |
| 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 - defines critical high-frequency switching path. |
| PGND (Pin 11) | Power ground return | Low-impedance return for all input/output capacitors; connects to exposed pad - essential for thermal dissipation and EMI control. |
| AGND (Pin 7) | Analog ground reference | Reference for FB, COMP, SS; must be star-connected near IC and tied to exposed pad - prevents noise coupling into error amplifier. |
| FB (Pin 16) | Feedback sense input | Internally regulated to 0.8 V reference; for fixed-output variants like ADP2107ACPZ-1.8-R7, directly connected to VOUT - no external divider needed. |
| SS (Pin 6) | Soft-start timing input | Accepts external capacitor (e.g., 1 nF → 1 ms ramp) to limit inrush current and prevent output overshoot during startup. |
| COMP (Pin 5) | Compensation node | Output of transconductance error amplifier (50 µA/V); requires RC network to AGND for stability - design-specific loop tuning point. |
| GND (Pins 2, 3, 4, 15) | Test pins | Internal test-only nodes; not functional grounds - must be tied to AGND plane per layout guidelines to avoid parasitic coupling. |
| NC (Pin 8) | No-connect terminal | Unbonded die pad - may be left floating or tied to AGND; no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow quiescent current | 20 µA enables >100-hour battery runtime in always-on IoT sensor nodes powered by coin cells. |
| Integrated synchronous rectification | Eliminates external Schottky diode, reducing BOM count and improving efficiency by 5–8% vs. asynchronous designs at 500 mA. |
| 100% duty cycle LDO mode | Maintains regulation down to VIN − VOUT = 0 mV, supporting brownout recovery and ultra-low dropout in Li+ battery discharge tail. |
| Programmable soft start | External capacitor on SS pin controls ramp time (e.g., 1 nF = 1 ms), preventing inrush-induced voltage droop on shared input rails. |
| Thermal shutdown with hysteresis | 140°C trip with 40°C hysteresis prevents thermal cycling damage and allows safe recovery after transient overload events. |
Applications
| Mobile Baseband Power | Wearable Sensor Hub |
|---|---|
|
Use Scenario: Powers ARM Cortex-M4-based baseband processor in LTE smartphone, supplying core logic at 1.8 V from 3.8 V Li+ battery. IC Role / Device Role / Timing Role: Primary buck regulator delivering 2 A peak current with fast transient response to handle burst-mode RF transmission. Use Value: 97% efficiency at 1 A reduces thermal footprint by >30% vs. legacy 1.5 A converters, enabling thinner bezel designs. |
Use Scenario: Supplies 1.8 V to MEMS accelerometer, gyroscope, and BLE SoC in fitness tracker with 120 mAh coin cell. IC Role / Device Role / Timing Role: Always-on power rail with 20 µA quiescent current and PFM mode active below 50 mA load. Use Value: Extends battery life to 14 days between charges - 2.3× longer than comparable 50 µA-Q devices. |
| Industrial PLC I/O Module | Set-Top Box SoC Core Rail |
|
Use Scenario: Provides 1.8 V to isolated CAN transceiver and FPGA configuration memory in DIN-rail mounted controller. IC Role / Device Role / Timing Role: Input-supply tolerant regulator (2.7–5.5 V) with UVLO (2.2 V) preventing deep discharge of 4xAA alkaline stack. Use Value: 16-lead LFCSP package fits within 8 mm² footprint, allowing dense placement near isolated barrier components. |
Use Scenario: Generates 1.8 V core supply for 28 nm video decoder SoC in cable set-top box operating from 5 V wall adapter. IC Role / Device Role / Timing Role: High-efficiency intermediate rail stepping down 5 V to 1.8 V before final LDO stage. Use Value: 95% efficiency at 1.5 A reduces heat sink requirements, eliminating need for forced-air cooling in sealed enclosure. |
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 V fixed, 1.7 A max, 2.05 V min input, 3.6 MHz switching frequency | Higher frequency enables smaller inductor but increases switching losses above 1 A | Preferred for ultra-compact layouts where inductor size dominates; not suitable for <2.05 V input or >1.7 A loads. |
| RT8059GJ6 | 1.8 V fixed, 2 A max, 2.5 V min input, 1.5 MHz switching frequency, no PFM mode | Higher quiescent current (35 µA) and no light-load PFM reduce battery life in portable use | Better for cost-sensitive industrial applications with stable 3.3 V input; lacks battery-optimized light-load efficiency. |
Compared with TPS62231DRYR and RT8059GJ6, ADP2107ACPZ-1.8-R7 uniquely combines 2 A capability, true 2.7 V minimum input, ultralow 20 µA quiescent current, and seamless PFM/PWM transition - making it optimal for battery-powered systems demanding both high peak current and long standby life.
Availability
ADP2107ACPZ-1.8-R7 is available at Aetrix Electronics and suitable for mobile handset power management, wearable sensor hub designs, and industrial PLC I/O modules requiring stable component supply with full traceability and lifecycle support.
Supply support for ADP2107ACPZ-1.8-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.
The ADP2107ACPZ-1.8-R7 belongs to Analog Devices' ADP210x family of high-efficiency, low-quiescent-current synchronous buck converters designed specifically for battery-powered portable electronics and space-constrained embedded systems.
FAQ
What is the maximum continuous output current of the ADP2107ACPZ-1.8-R7?
The ADP2107ACPZ-1.8-R7 delivers up to 2 A continuous output current under typical thermal conditions (θJA = 40°C/W, 4-layer board, exposed pad soldered). Derating applies above +85°C ambient; at +125°C junction, maximum sustainable current is ~1.4 A per datasheet thermal limits and current-limit curves (Figure 24).
Does the ADP2107ACPZ-1.8-R7 require external feedback resistors?
No. The ADP2107ACPZ-1.8-R7 is a fixed-output variant with internal resistor divider setting VOUT = 1.8 V. Pin FB is internally connected to the output node - no external resistors are needed, simplifying layout and improving accuracy versus adjustable versions.
Can the ADP2107ACPZ-1.8-R7 operate with a 2.5 V input supply?
Yes. The ADP2107ACPZ-1.8-R7 supports input voltages from 2.7 V to 5.5 V. A 2.5 V supply falls below the 2.7 V minimum and will trigger undervoltage lockout (UVLO), disabling regulation. Operation requires VIN ≥ 2.7 V across temperature.
What is the purpose of the PWIN1 and PWIN2 pins on the ADP2107ACPZ-1.8-R7?
PWIN1 and PWIN2 are dedicated source connections for the integrated P-channel high-side MOSFET. Each must be bypassed with ≥4.7 µF ceramic capacitors to PGND to minimize high-frequency switching loop inductance and ensure stable gate drive - critical for achieving rated 2 A performance and low EMI.
How does the ADP2107ACPZ-1.8-R7 manage efficiency at light loads?
The ADP2107ACPZ-1.8-R7 automatically transitions from fixed-frequency PWM mode to variable-frequency PFM mode below ~150 mA (depending on VIN/VOUT), reducing switching frequency and gate drive losses. This maintains >85% efficiency down to 10 mA, enabled by its 20 µA quiescent current and optimized control architecture.
ADP2107ACPZ-1.8-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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- 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)
ADP2107ACPZ-1.8-R7 FAQ
1.How can I place an order for ADP2107ACPZ-1.8-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2107ACPZ-1.8-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 ADP2107ACPZ-1.8-R7 reliable?
The price and inventory of ADP2107ACPZ-1.8-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2107ACPZ-1.8-R7 is usually 5 days.
3.What payment methods are accepted for ADP2107ACPZ-1.8-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2107ACPZ-1.8-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2107ACPZ-1.8-R7?
ADP2107ACPZ-1.8-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2107ACPZ-1.8-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 ADP2107ACPZ-1.8-R7?
For technical support, including ADP2107ACPZ-1.8-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2107ACPZ-1.8-R7 requirements.
6.How does Aetrix verify that ADP2107ACPZ-1.8-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2107ACPZ-1.8-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 ADP2107ACPZ-1.8-R7 meets industry standards.
7.What is the process for return or replacement of ADP2107ACPZ-1.8-R7?
All ADP2107ACPZ-1.8-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2107ACPZ-1.8-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 ADP2107ACPZ-1.8-R7 part is unused and in its original packaging.
Return procedure for ADP2107ACPZ-1.8-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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