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Analog Devices Inc. ADP2107ACPZ-3.3-R7
- Part No.:
- ADP2107ACPZ-3.3-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WQFN Exposed Pad, CSP
- Datasheet:
-
ADP2107ACPZ-3.3-R7.pdf
- Description:
- IC REG BUCK 3.3V 2A 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,496
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Product details
Overview
ADP2107ACPZ-3.3-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 3.3 V output with ±1% regulation accuracy over temperature and load. It features 1.2 MHz switching frequency, 20 µA quiescent current, and integrated P-channel high-side switch (100 mΩ typical) and N-channel synchronous rectifier (90 mΩ typical), optimized for portable power rails in battery-powered systems.
For engineers reviewing the ADP2107ACPZ-3.3-R7 datasheet, ADP2107ACPZ-3.3-R7 pinout, ADP2107ACPZ-3.3-R7 application, or ADP2107ACPZ-3.3-R7 equivalent, key selection criteria include its 2 A continuous output capability, ultralow shutdown current (0.1 µA), seamless PWM-to-PFM mode transition, thermal shutdown (140°C), and compatibility with small ceramic output capacitors - all critical for space-constrained, efficiency-sensitive designs.
Technical Context
The ADP2107ACPZ-3.3-R7 implements a peak-current-mode, constant-frequency PWM control architecture at medium-to-heavy loads (≥100 mA), ensuring fast transient response and stable loop behavior. Its internal transconductance error amplifier (50 µA/V) and current-sense gain (3.625 A/V) are calibrated for the 2 A variant, enabling precise current limiting and compensation.
Under light-load conditions (<15–195 mA, depending on VIN/VOUT), it automatically shifts to pulse-frequency modulation (PFM) to reduce switching losses and maintain >85% efficiency down to 1 mA. The device supports 100% duty-cycle operation (LDO mode) for ultra-low dropout and includes programmable soft start (750–1200 µs with 1 nF capacitor) and undervoltage lockout (2.2–2.6 V hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A continuous - supports high-current digital logic rails (e.g., SoC I/O, FPGA banks) without external current boosting. |
| Output Voltage | Fixed 3.3 V ±1% (3.267–3.333 V at 10 mA, 3.201–3.399 V full range) - eliminates external feedback resistors and ensures stable MCU/USB PHY supply. |
| Input Range | 2.7 V to 5.5 V - compatible with single Li+/Li− polymer cells, 3× alkaline/NiMH, and PCMCIA bus voltages. |
| Quiescent Current | 20 µA typical - extends battery life in always-on subsystems (e.g., RTC, sensor hubs) without compromising startup speed. |
| Switching Frequency | 1.2 MHz (±0.2 MHz over temp) - enables use of sub-3 µH inductors and <10 µF ceramic output capacitors, minimizing board area. |
| Efficiency Peak | 97% at 3.6 VIN/2.5 VOUT, 1 A - reduces thermal load in sealed enclosures and allows 1 W max power dissipation in 40°C/W θJA layout. |
| Shutdown Current | 0.1 µA - ensures negligible drain during system sleep modes, critical for multi-year battery operation. |
Pinout & Package
ADP2107ACPZ-3.3-R7 uses a 16-lead, 4 mm × 4 mm LFCSP package with exposed thermal pad soldered to PCB ground plane. Pin 1 is EN (enable); pins 2,3,4,15 are test-only GND (tie to AGND plane); pin 11 is PGND (power ground return for input/output caps); EP (exposed pad) must be connected to thermal ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Logic enable input | High-active TTL/CMOS-compatible control: drives device ON (20 µA IQ) or OFF (0.1 µA shutdown current). |
| IN (Pin 14) | Main IC bias supply | Powers internal circuitry; bypassed to AGND with ≥0.1 µF capacitor; connected to PWIN1 via 10 Ω resistor for noise isolation. |
| PWIN1/PWIN2 (Pins 9,13) | High-side switch source inputs | Supply nodes for P-channel MOSFET; each requires ≥4.7 µF ceramic cap to PGND to minimize voltage droop during switching. |
| LX1/LX2 (Pins 10,12) | Switch node outputs | Drain terminals of integrated P-FET and N-FET; must be tied together and routed directly to LC filter inductor. |
| FB (Pin 16) | Feedback sense input | Internally regulated to 0.8 V reference; for fixed 3.3 V version, directly connected to output - no external divider needed. |
| AGND (Pin 7) | Analog ground reference | Return for COMP, SS, FB network; must be star-connected near IC and tied to exposed pad for low-noise regulation. |
| PGND (Pin 11) | Power ground return | Low-impedance path for input/output capacitor currents; connect to exposed pad and separate from AGND at single point. |
| COMP (Pin 5) | Error amplifier output | Transconductance node (50 µA/V); requires RC network to AGND for loop stability - design tool ADIsimPower™ recommended. |
| SS (Pin 6) | Soft-start timing input | Capacitor-to-AGND sets ramp time (750–1200 µs with 1 nF); prevents inrush current into bulk capacitance at startup. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous power stage | 100 mΩ P-FET + 90 mΩ N-FET (typ) - eliminates external diode, achieves >95% efficiency at 1 A without heatsinking. |
| Adaptive control mode | Automatic PWM-to-PFM transition - maintains >80% efficiency from 1 mA to 2 A, ideal for burst-mode wireless sensors. |
| Thermal robustness | 140°C junction shutdown with 40°C hysteresis - protects against sustained overload in compact layouts without airflow. |
| Small-footprint power solution | 4 mm × 4 mm LFCSP + ceramic passives - fits within 25 mm² total area, suitable for wearable and handheld PCBs. |
| Low-noise regulation | 0.8 V internal reference with ±2% tolerance over −40°C to +125°C - ensures consistent 3.3 V rail accuracy across automotive/industrial temps. |
Applications
| Mobile Power Management | Industrial Sensor Node |
|---|---|
|
Use Scenario: Powering baseband processor, display driver, and USB transceiver in LTE smartphone mainboard. IC Role / Device Role / Timing Role: Primary 3.3 V system rail regulator with dynamic load handling up to 2 A during data transmission bursts. Use Value: 97% peak efficiency and 20 µA quiescent current extend talk time by >12% versus legacy buck converters in 3G/4G modems. |
Use Scenario: Supplying microcontroller, RF transceiver (Sub-GHz), and analog front-end in battery-operated environmental monitor. IC Role / Device Role / Timing Role: Always-on 3.3 V supply with automatic PFM mode during 99% sleep cycle and fast PWM wake-up. Use Value: 0.1 µA shutdown current enables 10+ year battery life with CR2032; soft start prevents brownout during cold-start calibration. |
| Set-Top Box AV Core | Portable Medical Device |
|
Use Scenario: Generating clean 3.3 V for HDMI PHY, audio DAC, and video decoder ASIC in cable/satellite STB. IC Role / Device Role / Timing Role: Low-noise, high-PSRR intermediate rail between 5 V input and sensitive analog/digital blocks. Use Value: 1.2 MHz switching avoids AM radio band interference; integrated synchronous rectification eliminates EMI from external Schottky. |
Use Scenario: Powering ECG front-end, Bluetooth LE SoC, and OLED display in handheld patient monitor. IC Role / Device Role / Timing Role: Single-chip 3.3 V regulator meeting IEC 60601-1 leakage and thermal safety requirements. Use Value: Exposed-pad LFCSP enables direct thermal coupling to metal enclosure; UVLO prevents deep discharge of medical-grade Li-ion cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down DC-to-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYT | 1.8 A max output, 2.05 V to 6.0 V input, 3.3 V fixed, 2.25 MHz switching - higher frequency but lower current rating and no PFM mode. | Suitable for lower-power IoT hubs where size is critical but 2 A headroom is unnecessary. | Select if board space is constrained and load never exceeds 1.8 A; verify loop stability with 2.25 MHz compensation. |
| RT8059NGQW | 2 A output, 2.5 V to 5.5 V input, 3.3 V fixed, 1.5 MHz, 25 µA IQ - lacks thermal shutdown and has wider output tolerance (±2%). | Fits cost-sensitive consumer electronics where extended temperature operation is not required. | Choose for price-driven designs with ambient ≤85°C; add external thermal monitoring if used in enclosed industrial housings. |
Compared with TPS62231DRYT and RT8059NGQW, the ADP2107ACPZ-3.3-R7 delivers superior light-load efficiency via true PFM, guaranteed thermal protection, and tighter 3.3 V regulation - making it optimal for battery longevity and reliability-critical embedded systems.
Availability
ADP2107ACPZ-3.3-R7 is available at Aetrix Electronics and suitable for mobile handsets, industrial sensor nodes, set-top box AV cores, and portable medical devices requiring stable component supply, long-term manufacturability, and qualified automotive-grade alternatives.
Supply support for ADP2107ACPZ-3.3-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The ADP2107ACPZ-3.3-R7 belongs to Analog Devices' ADP210x family of ultra-low-IQ synchronous buck converters, engineered specifically for extended battery life and minimal footprint in portable and energy-harvesting applications.
FAQ
What is the maximum continuous output current of the ADP2107ACPZ-3.3-R7?
The ADP2107ACPZ-3.3-R7 delivers 2 A continuous output current under typical thermal conditions (θJA = 40°C/W, TA ≤ 85°C). This rating is validated across the full input range (2.7 V to 5.5 V) and output load spectrum, with current limit threshold specified at 2.6–3.3 A depending on junction temperature. Derating is required above 85°C ambient.
Does the ADP2107ACPZ-3.3-R7 require external feedback resistors?
No. The ADP2107ACPZ-3.3-R7 is a fixed-output variant with internal feedback network calibrated for 3.3 V. Pin 16 (FB) connects directly to the output node - no external resistors are needed, simplifying layout and improving regulation accuracy versus adjustable counterparts.
How does the ADP2107ACPZ-3.3-R7 manage efficiency at light loads?
The ADP2107ACPZ-3.3-R7 automatically transitions from PWM to pulse-frequency modulation (PFM) mode below ~15–195 mA (depending on input/output voltage), reducing switching frequency to minimize gate and switching losses. This maintains >85% efficiency down to 1 mA, unlike forced-PWM regulators that suffer steep light-load efficiency drop-off.
What is the purpose of the PWIN1 and PWIN2 pins on the ADP2107ACPZ-3.3-R7?
PWIN1 and PWIN2 are dedicated source connections for the integrated P-channel high-side MOSFET. Each must be bypassed to PGND with ≥4.7 µF ceramic capacitors placed as close as possible to the pins. This local energy storage minimizes voltage droop during high di/dt switching events and ensures stable gate drive for the power FET.
Can the ADP2107ACPZ-3.3-R7 operate with 100% duty cycle?
Yes. The ADP2107ACPZ-3.3-R7 supports 100% duty-cycle operation (LDO mode) when input voltage approaches output voltage (e.g., VIN = 3.4 V → VOUT = 3.3 V), maintaining regulation without dropout. In this mode, the high-side switch remains fully enhanced, and the synchronous rectifier is disabled - enabling ultra-low dropout performance critical for battery end-of-life operation.
ADP2107ACPZ-3.3-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):
- 3.3V
- 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-3.3-R7 FAQ
1.How can I place an order for ADP2107ACPZ-3.3-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2107ACPZ-3.3-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 ADP2107ACPZ-3.3-R7 reliable?
The price and inventory of ADP2107ACPZ-3.3-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2107ACPZ-3.3-R7 is usually 5 days.
3.What payment methods are accepted for ADP2107ACPZ-3.3-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2107ACPZ-3.3-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2107ACPZ-3.3-R7?
ADP2107ACPZ-3.3-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2107ACPZ-3.3-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 ADP2107ACPZ-3.3-R7?
For technical support, including ADP2107ACPZ-3.3-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2107ACPZ-3.3-R7 requirements.
6.How does Aetrix verify that ADP2107ACPZ-3.3-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2107ACPZ-3.3-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 ADP2107ACPZ-3.3-R7 meets industry standards.
7.What is the process for return or replacement of ADP2107ACPZ-3.3-R7?
All ADP2107ACPZ-3.3-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2107ACPZ-3.3-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 ADP2107ACPZ-3.3-R7 part is unused and in its original packaging.
Return procedure for ADP2107ACPZ-3.3-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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