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Analog Devices Inc. ADP2107ACPZ-R7
- Part No.:
- ADP2107ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WQFN Exposed Pad, CSP
- Datasheet:
-
ADP2107ACPZ-R7.pdf
- Description:
- IC REG BUCK ADJ 2A 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,372
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Product details
Overview
ADP2107ACPZ-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 adjustable output (0.8 V to VIN) with 1.2 MHz fixed-frequency PWM/PFM hybrid control. It achieves up to 97% efficiency at 2 A load, features 20 µA quiescent current, 0.1 µA shutdown current, and integrated P-channel high-side switch + N-channel synchronous rectifier for minimal external component count. It is designed for space-constrained portable power rails in mobile handsets and PDAs.
For engineers reviewing the ADP2107ACPZ-R7 datasheet, ADP2107ACPZ-R7 pinout, ADP2107ACPZ-R7 application, or ADP2107ACPZ-R7 equivalent, key selection criteria include verified 2 A continuous output capability, confirmed 16-pin LFCSP thermal performance (θJA = 40°C/W), validated soft-start timing (750–1200 µs with 1 nF capacitor), and documented PFM-to-PWM transition behavior under light-load conditions.
Technical Context
The ADP2107ACPZ-R7 employs a peak-current-mode, constant-frequency PWM architecture at medium-to-heavy loads for tight regulation and fast transient response, while automatically transitioning to pulse-frequency modulation (PFM) under light loads to maintain ultralow quiescent current (20 µA). Its dual-switch topology integrates a 100 mΩ P-channel high-side MOSFET and 90 mΩ N-channel synchronous rectifier, enabling 100% duty-cycle operation in dropout mode.
Control is implemented via an internal transconductance error amplifier (50 µA/V) and current-sense amplifier (3.625 A/V gain), with feedback referenced to a precise 0.8 V bandgap. The device includes undervoltage lockout (2.4 V rising threshold), thermal shutdown (140°C), and programmable soft start-ensuring robust startup into capacitive loads without inrush overstress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Current | 2 A continuous - supports high-current core logic rails (e.g., ARM Cortex-A series SoCs) without external current boosting. |
| Input Voltage 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 (typ) - enables use of small 1–3.3 µH inductors and ceramic output capacitors for compact PCB layout. |
| Quiescent Current | 20 µA (typ) - extends battery runtime in always-on subsystems (e.g., RTC, sensor hubs) during standby. |
| Feedback Reference | 0.8 V ±2% (−40°C to +125°C) - sets output voltage accuracy for 1.2 V/1.5 V/1.8 V/3.3 V presets or adjustable configurations. |
| Efficiency Peak | 97% at 2 A, VIN = 3.6 V, VOUT = 2.5 V - minimizes thermal dissipation in thermally constrained handheld enclosures. |
| Shutdown Current | 0.1 µA - ensures negligible battery drain during system deep-sleep or off-state. |
Pinout & Package
ADP2107ACPZ-R7 uses a 16-lead, 4 mm × 4 mm LFCSP package with exposed thermal pad soldered to PCB ground plane for optimal thermal dissipation (θJA = 40°C/W). 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 input | Supplies internal bias circuitry; bypassed to AGND with ≥0.1 µF capacitor to suppress supply noise. |
| PWIN1/PWIN2 (Pins 9,13) | High-side switch source inputs | Connect to input rail via low-ESR capacitors (≥4.7 µF each) to minimize switching loop inductance and ripple. |
| 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 input/output capacitors; connects directly to exposed thermal pad. |
| AGND (Pin 7) | Analog ground reference | Reference for FB, COMP, SS; requires star connection to PGND/exposed pad near IC for noise immunity. |
| FB (Pin 16) | Output voltage feedback | Senses regulated output via resistive divider; internal 0.8 V reference enables precise output programming. |
| COMP (Pin 5) | Error amplifier output | Compensation node for external RC network (e.g., 10 kΩ + 1 nF) to stabilize control loop dynamics. |
| SS (Pin 6) | Soft-start timing input | Capacitor-to-AGND (e.g., 1 nF) sets 750–1200 µs ramp time to limit inrush current during startup. |
Key Features
| Feature | Design Value |
|---|---|
| Hybrid PWM/PFM Control | Automatically switches between fixed-frequency PWM (medium/heavy load) and variable-frequency PFM (light load) to sustain >85% efficiency down to 1 mA load. |
| 100% Duty Cycle Operation | Enables LDO-like dropout behavior when VIN − VOUT < RDS(on) × ILOAD, maintaining regulation even as input voltage sags near output level. |
| Integrated Power Switches | 100 mΩ P-channel high-side switch + 90 mΩ N-channel synchronous rectifier eliminate external FETs and reduce BOM count by ≥4 components. |
| Ultralow Quiescent Current | 20 µA operating current enables >1-year battery life in coin-cell-powered IoT sensors with periodic wake-up cycles. |
| Programmable Soft Start | External capacitor on SS pin controls output voltage ramp rate, preventing overshoot and limiting inrush into large output capacitance (e.g., 10–100 µF). |
Applications
| Mobile Handsets | PDAs and Palmtop Computers |
|---|---|
Use Scenario: Powering application processors (e.g., Qualcomm Snapdragon S4) and memory subsystems requiring stable 1.2 V/1.8 V rails with fast load-transient response. IC Role / Device Role / Timing Role: Primary buck regulator delivering 2 A continuous current with <10 µs transient recovery to maintain SoC stability during burst-mode CPU activity. Use Value: High 97% efficiency reduces thermal load in sealed handset enclosures; 1.2 MHz switching allows compact 2.2 µH inductor + 22 µF ceramic output capacitor solution. |
Use Scenario: Supplying core voltage to ARM9/ARM11-based PDA SoCs and LCD interface circuitry in battery-operated handheld devices. IC Role / Device Role / Timing Role: Main system PMIC buck stage providing dynamically scalable output (via FB resistor network) for varying processor performance states. Use Value: 20 µA quiescent current extends standby time beyond 30 days on a single 1200 mAh Li-ion cell; PFM mode maintains >80% efficiency at 10 mA sleep current. |
| Telecom Equipment | Audio/Video Consumer Electronics |
Use Scenario: Generating clean 3.3 V bias for Ethernet PHYs and USB transceivers in compact VoIP phones and wireless access points. IC Role / Device Role / Timing Role: Secondary point-of-load regulator converting 5 V USB or PoE-derived input to noise-sensitive analog/digital interface rails. Use Value: Integrated synchronous rectification eliminates external Schottky diode losses; 0.1 µA shutdown current supports remote management wake-on-LAN functionality. |
Use Scenario: Powering DSPs and audio codecs in portable media players requiring low-noise 1.5 V/1.8 V supplies with minimal EMI impact on analog audio paths. IC Role / Device Role / Timing Role: Low-EMI buck converter using 1.2 MHz fixed frequency to place switching harmonics outside sensitive 20 Hz–20 kHz audio band. Use Value: Ultralow 20 µA quiescent current enables >2-week playback on 800 mAh battery; soft-start prevents audible pop during power-on sequencing. |
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 |
|---|---|---|---|
| TPS62231DRVR | 1.8 A max output, 2.05 V–6.0 V input, 2.25 MHz switching, 17 µA IQ, 6-pin WSON | Lower current rating and higher minimum input voltage limit it to sub-1.8 A loads; smaller package reduces thermal margin at full load. | Select when board space is critical and peak load ≤1.8 A; verify thermal derating in 4-layer PCB with limited copper area. |
| RT8059NGSP | 2 A max output, 2.5 V–5.5 V input, 1.5 MHz switching, 30 µA IQ, 16-pin QFN | Higher quiescent current reduces battery life in ultra-low-power modes; wider input range improves compatibility with 2-cell alkaline sources. | Prefer for cost-sensitive industrial designs where 30 µA IQ is acceptable and 2.5 V start-up is required for legacy battery chemistries. |
Compared with TPS62231DRVR and RT8059NGSP, ADP2107ACPZ-R7 delivers superior 2 A continuous capability with lower 20 µA quiescent current and proven 1.2 MHz stability in compact LFCSP layout-making it optimal for battery-powered applications demanding both high current and long standby life.
Availability
ADP2107ACPZ-R7 is available at Aetrix Electronics and suitable for mobile handsets, PDAs, and telecom equipment requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for ADP2107ACPZ-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 over 50 years of precision power management innovation.
The ADP210x family was engineered specifically for portable and battery-powered systems needing high-efficiency, low-quiescent-current DC/DC conversion in minimal footprint-targeting smartphones, wearables, and handheld computing platforms.
FAQ
What is the maximum continuous output current of the ADP2107ACPZ-R7?
The ADP2107ACPZ-R7 is rated for 2 A continuous output current under typical thermal conditions (θJA = 40°C/W, 4-layer PCB with exposed pad soldered). This is validated across the full input range (2.7 V–5.5 V) and output voltages (0.8 V–VIN), with peak current limit set to 2.9 A (typ) at 25°C. Derating applies above 85°C ambient or with reduced copper area.
Does the ADP2107ACPZ-R7 support adjustable output voltage?
Yes, the ADP2107ACPZ-R7 supports fully adjustable output voltage from 0.8 V to VIN using an external resistive divider on the FB pin. Its internal 0.8 V reference is accurate to ±2% over −40°C to +125°C, enabling precise configuration of common rails like 1.2 V, 1.5 V, 1.8 V, or 3.3 V without requiring factory-preset variants.
How does the ADP2107ACPZ-R7 manage efficiency at light loads?
The ADP2107ACPZ-R7 automatically transitions from fixed-frequency PWM mode to pulse-frequency modulation (PFM) mode below ~15–195 mA (depending on VIN/VOUT), reducing switching frequency and quiescent current to 20 µA (typ). This preserves >85% efficiency at 1 mA load-critical for battery longevity in always-on sensor or RTC applications.
What is the recommended soft-start capacitor value for the ADP2107ACPZ-R7?
A 1 nF capacitor from SS pin to AGND sets a nominal soft-start period of 1 ms, as confirmed in Figure 36 of the ADP2107ACPZ-R7 datasheet. This value limits inrush current into typical output capacitances (e.g., 22–100 µF) and prevents output overshoot. Larger values increase ramp time linearly (e.g., 2.2 nF ≈ 2.2 ms).
Is the ADP2107ACPZ-R7 RoHS-compliant and lead-free?
Yes, the ADP2107ACPZ-R7 is RoHS-compliant and lead-free, manufactured in accordance with EU Directive 2011/65/EU and Analog Devices' Pb-free packaging standards. The "-R7" suffix denotes tape-and-reel packaging compliant with J-STD-020 moisture sensitivity level 3 (MSL3) handling requirements.
ADP2107ACPZ-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:
- 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-R7 FAQ
1.How can I place an order for ADP2107ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2107ACPZ-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-R7 reliable?
The price and inventory of ADP2107ACPZ-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-R7 is usually 5 days.
3.What payment methods are accepted for ADP2107ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2107ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2107ACPZ-R7?
ADP2107ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2107ACPZ-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-R7?
For technical support, including ADP2107ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2107ACPZ-R7 requirements.
6.How does Aetrix verify that ADP2107ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2107ACPZ-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-R7 meets industry standards.
7.What is the process for return or replacement of ADP2107ACPZ-R7?
All ADP2107ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2107ACPZ-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-R7 part is unused and in its original packaging.
Return procedure for ADP2107ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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