Analog Devices Inc. ADP2107ACPZ-1.5-R7
- Part No.:
- ADP2107ACPZ-1.5-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WQFN Exposed Pad, CSP
- Datasheet:
-
ADP2107ACPZ-1.5-R7.pdf
- Description:
- IC REG BUCK 1.5V 2A 16LFCSP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ADP2107ACPZ-1.5-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 1.5 V output with ±1% regulation accuracy over temperature and load. It features 1.2 MHz switching frequency, 97% peak efficiency at 2 A, 20 µA quiescent current, and integrated P-channel high-side switch (100 mΩ) and N-channel synchronous rectifier (90 mΩ). It is used in power rails for mobile processors and baseband ICs requiring stable low-voltage, high-current supply.
For engineers reviewing the ADP2107ACPZ-1.5-R7 datasheet, ADP2107ACPZ-1.5-R7 pinout, ADP2107ACPZ-1.5-R7 application, or ADP2107ACPZ-1.5-R7 equivalent, key selection criteria include its 2 A continuous output capability, 1.5 V preset output with 0.8 V feedback reference, ultralow 20 µA quiescent current in active mode, 0.1 µA shutdown current, and seamless PWM-to-PFM transition for battery-powered efficiency optimization.
Technical Context
The ADP2107ACPZ-1.5-R7 implements a peak current-mode control architecture with fixed 1.2 MHz PWM operation at medium-to-heavy loads and automatic transition to variable-frequency pulse-frequency modulation (PFM) under light load to minimize quiescent current. Its internal 0.8 V feedback reference enables precise output regulation via external resistor divider for adjustable versions, while the -1.5-R7 variant integrates factory-trimmed resistors for 1.5 V output.
It integrates a 100 mΩ P-channel high-side switch and 90 mΩ N-channel synchronous rectifier, supports 100% duty-cycle LDO-mode operation during dropout, and includes undervoltage lockout (2.2 V to 2.6 V hysteresis), programmable soft start (750–1200 µs with 1 nF capacitor), and thermal shutdown at 140°C with 40°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A continuous - supports high-current digital core rails without external current boosting. |
| Output Voltage | Fixed 1.5 V ±1.5% - eliminates need for external feedback resistors; suitable for FPGA I/O or memory interface supplies. |
| Input Range | 2.7 V to 5.5 V - compatible with single Li+/Li− polymer cell, 3× alkaline/NiMH, or PCMCIA sources. |
| Switching Frequency | 1.2 MHz (±167 kHz) - enables use of small 1–3.3 µH inductors and ceramic output capacitors ≤10 µF. |
| Quiescent Current | 20 µA - extends battery life in always-on subsystems such as PMIC backup domains or sensor hubs. |
| Shutdown Current | 0.1 µA - ensures negligible drain during system sleep or deep power-down states. |
| Efficiency Peak | 97% at 2 A, VIN = 3.6 V, VOUT = 1.5 V - reduces thermal load and improves power density in compact portable designs. |
Pinout & Package
ADP2107ACPZ-1.5-R7 uses a 16-lead, 4 mm × 4 mm LFCSP package with exposed thermal pad soldered to PCB ground plane. Pin 1 is EN; pins 2, 3, 4, and 15 are test-only GND pins tied to AGND; pin 7 is AGND; pin 11 is PGND; and the exposed pad (EP) is mandatory for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable logic input | Active-high TTL/CMOS-compatible control; drives device into 0.1 µA shutdown when low. |
| FB (Pin 16) | Feedback reference node | Internally connected to 0.8 V reference; for fixed 1.5 V version, tied internally to output divider - no external components required. |
| LX1/LX2 (Pins 10 & 12) | Switch node outputs | Drains of integrated P-FET and N-FET; must be shorted together and routed to LC filter - defines switching node voltage swing and EMI behavior. |
| PWIN1/PWIN2 (Pins 9 & 13) | High-side switch source inputs | Supply connections for P-FET gate drive; require local 4.7 µF+ ceramic bypass to PGND to stabilize gate loop. |
| IN (Pin 14) | Internal circuitry power input | Bypassed to AGND with ≥0.1 µF capacitor; connected to PWIN1 via 10 Ω resistor to isolate analog/digital supply domains. |
| AGND (Pin 7) | Analog ground reference | Return for FB divider, SS capacitor, and COMP compensation network - must be star-connected near IC and tied to EP. |
| PGND (Pin 11) | Power ground return | High-current return path for input/output capacitors and LX node - requires low-inductance copper pour connected to EP. |
| SS (Pin 6) | Soft-start timing input | Capacitor-to-AGND sets startup ramp time (e.g., 1 nF → 1 ms); prevents inrush current into downstream capacitance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous FETs | 100 mΩ P-FET + 90 mΩ N-FET - eliminates external diode, reduces conduction loss, and enables >95% efficiency at 1–2 A. |
| Adaptive PFM/PWM mode transition | Automatic shift below ~15–30 mA load - maintains >80% efficiency down to 100 µA output while holding 20 µA IQ. |
| 100% duty-cycle LDO mode | Continuous regulation when VIN ≤ VOUT + dropout - sustains output during brown-out without reset or dropout interruption. |
| Programmable soft start | 750–1200 µs ramp with 1 nF capacitor - limits inrush into 100–1000 µF output banks without external sequencers. |
| Thermal protection with hysteresis | 140°C shutdown + 40°C recovery - prevents cumulative thermal stress during sustained overload or poor airflow. |
Applications
| Mobile Baseband Power | Wearable Sensor Hub Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A series baseband processors in LTE smartphones requiring clean, fast-transient 1.5 V core voltage. IC Role / Device Role / Timing Role: Primary buck regulator supplying CPU I/O domain with 2 A peak current and <10 µs transient response. Use Value: 97% efficiency at full load reduces thermal footprint; 20 µA quiescent current preserves battery during idle screen-off states. | Use Scenario: Delivers regulated 1.5 V to ultra-low-power sensor fusion hubs (accelerometer + gyro + MCU) in smartwatches. IC Role / Device Role / Timing Role: Always-on power rail managing sub-100 µA sleep current and burst-mode wake-up loads up to 500 mA. Use Value: Seamless PFM mode maintains >85% efficiency at 50 µA load; 0.1 µA shutdown isolates rail during full-system hibernation. |
| Industrial IoT Edge Node | Portable Medical Diagnostic Module |
Use Scenario: Supplies 1.5 V to wireless SoCs (e.g., Nordic nRF52840) in battery-operated condition monitoring nodes deployed in remote locations. IC Role / Device Role / Timing Role: Main system regulator supporting 2 A pulsed RF transmit bursts and microamp-level sleep between sensor reads. Use Value: 1.2 MHz switching allows compact 2.2 µH inductor; UVLO (2.2 V) prevents data corruption during end-of-battery discharge. | Use Scenario: Powers ADC front-end and low-noise analog signal chain in handheld ECG or pulse oximeter modules. IC Role / Device Role / Timing Role: Low-noise, tightly regulated 1.5 V rail decoupled via AGND/PGND separation and exposed-pad thermal grounding. Use Value: Integrated synchronous rectification minimizes ripple-induced measurement noise; ±1% output tolerance ensures ADC reference stability. |
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 output, 1.7 A max, 2.05 V min input, 3.6 MHz switching | Higher frequency enables smaller passives but lower current rating and narrower input range | Select if board space is critical and 1.7 A suffices; verify compatibility with 1.5 V requirement via external feedback. |
| RT7295BGJ6F | 1.5 V fixed output, 2.5 A max, 2.5 V min input, 1.5 MHz switching, higher 35 µA IQ | Higher current headroom and wider input range, but 1.75× higher quiescent current erodes battery runtime | Choose for higher load margin or 2.5 V minimum input systems; avoid where <25 µA IQ is mandatory for multi-year battery life. |
Compared with TPS62231DRYR and RT7295BGJ6F, ADP2107ACPZ-1.5-R7 delivers optimal balance of 2 A capability, 20 µA IQ, and 2.7 V minimum input - making it superior for long-life, single-cell Li+ applications demanding exact 1.5 V with minimal thermal overhead.
Availability
ADP2107ACPZ-1.5-R7 is available at Aetrix Electronics and suitable for mobile handset power management, wearable sensor hub design, and industrial IoT edge node development requiring stable component supply and guaranteed long-term availability.
Supply support for ADP2107ACPZ-1.5-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-1.5-R7 belongs to the ADP210x family of high-efficiency, low-quiescent-current synchronous buck converters designed specifically for battery-powered portable electronics requiring compact, thermally efficient, and highly integrated power solutions.
FAQ
What is the maximum continuous output current of the ADP2107ACPZ-1.5-R7?
The ADP2107ACPZ-1.5-R7 delivers up to 2 A continuous output current across its full operating temperature range (−40°C to +125°C junction), verified by peak current limit testing (2.6–3.3 A typical) and thermal performance with proper PCB layout and exposed pad grounding.
Does the ADP2107ACPZ-1.5-R7 require external feedback resistors to set the 1.5 V output?
No. The ADP2107ACPZ-1.5-R7 is a factory-trimmed fixed-output variant with internal resistor divider referenced to the 0.8 V FB pin. No external resistors are needed - FB is directly connected to the output for closed-loop regulation at 1.5 V.
What is the recommended soft-start capacitor value for the ADP2107ACPZ-1.5-R7?
A 1 nF capacitor from SS (Pin 6) to AGND yields a nominal soft-start period of 1000 µs, which is optimal for limiting inrush into typical 10–100 µF output capacitance. Values between 0.5 nF (750 µs) and 1.2 nF (1200 µs) are supported per datasheet specifications.
How does the ADP2107ACPZ-1.5-R7 manage efficiency at light loads?
The ADP2107ACPZ-1.5-R7 automatically transitions from fixed-frequency PWM to variable-frequency PFM mode below ~15–30 mA load, reducing switching losses and maintaining >80% efficiency down to 100 µA while drawing only 20 µA quiescent current from VIN.
Can the ADP2107ACPZ-1.5-R7 operate with a 2.5 V input supply?
No. The ADP2107ACPZ-1.5-R7 has a minimum input voltage of 2.7 V per absolute ratings and functional specifications. Operation below 2.7 V risks undervoltage lockout activation or unstable regulation, and is not characterized or guaranteed.
ADP2107ACPZ-1.5-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad, CSP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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):
- 1.5V
- 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-1.5-R7 FAQ
1.How can I place an order for ADP2107ACPZ-1.5-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2107ACPZ-1.5-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-1.5-R7 reliable?
The price and inventory of ADP2107ACPZ-1.5-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-1.5-R7 is usually 5 days.
3.What payment methods are accepted for ADP2107ACPZ-1.5-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2107ACPZ-1.5-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2107ACPZ-1.5-R7?
ADP2107ACPZ-1.5-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2107ACPZ-1.5-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-1.5-R7?
For technical support, including ADP2107ACPZ-1.5-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2107ACPZ-1.5-R7 requirements.
6.How does Aetrix verify that ADP2107ACPZ-1.5-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2107ACPZ-1.5-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-1.5-R7 meets industry standards.
7.What is the process for return or replacement of ADP2107ACPZ-1.5-R7?
All ADP2107ACPZ-1.5-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2107ACPZ-1.5-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-1.5-R7 part is unused and in its original packaging.
Return procedure for ADP2107ACPZ-1.5-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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