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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsADP2118ACPZ-R2
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ADP2118ACPZ-R2 - Analog Devices Inc.

Manufacturer Part Number
ADP2118ACPZ-R2
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-ADP2118ACPZ-R2
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
11,440 pcs available, New & Original
Parts Description
IC REG BUCK ADJ 3A 16LFCSP
Package
16-LFCSP (4x4)
Data sheet
ADP2118ACPZ-R2.pdf

Other Related Documents

Tape and Reel Packaging.pdf

PCN Part Status Change

Sm Reel Obs 9/Mar/2017.pdf
RoHs Status
 
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Specifications

ADP2118ACPZ-R2 Tech Specifications
Analog Devices Inc. - ADP2118ACPZ-R2 technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - ADP2118ACPZ-R2

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Output (Min/Fixed) 0.6V
Voltage - Output (Max) 5.5V
Voltage - Input (Min) 2.3V
Voltage - Input (Max) 5.5V
Topology Buck
Synchronous Rectifier Yes
Supplier Device Package 16-LFCSP (4x4)
Series -
Package / Case 16-WQFN Exposed Pad, CSP
Product Attribute Attribute Value
Package Tape & Reel (TR)
Output Type Adjustable
Output Configuration Positive
Operating Temperature -40°C ~ 125°C (TJ)
Number of Outputs 1
Mounting Type Surface Mount
Function Step-Down
Frequency - Switching 600kHz, 1.2MHz
Current - Output 3A
Base Product Number ADP2118

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) 3 (168 Hours)
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

ADP2118ACPZ-R2 Image
ADP2118ACPZ-R2 (1)

Manufacturer Part Number

ADP2118ACPZ-R2

Manufacturer

Analog Devices

Introduction

The ADP2118ACPZ-R2 is a high-efficiency, synchronous step-down DC-DC converter from Analog Devices. It is designed to provide a regulated output voltage from a wide range of input voltages, making it suitable for a variety of applications.

Product Features and Performance

Wide input voltage range: 2.3V to 5.5V

Adjustable output voltage from 0.6V to 5.5V

Output current up to 3A

Switching frequency options of 600kHz or 1.2MHz

Synchronous rectification for high efficiency

Integrated compensation for easy design

Thermal shutdown, overcurrent protection, and soft-start

Product Advantages

High efficiency up to 95%

Compact 16-pin WQFN package

Low external component count

Automotive-grade temperature range: -40°C to +125°C

Key Reasons to Choose

Versatile input and output voltage range to accommodate various power requirements

High efficiency and compact size for space-constrained applications

Robust protection features for reliable operation

Automotive-grade temperature range for use in harsh environments

Quality and Safety Features

Robust protection features including thermal shutdown, overcurrent protection, and soft-start

Automotive-grade quality and reliability for demanding applications

Compatibility

The ADP2118ACPZ-R2 is compatible with a wide range of applications that require a regulated DC-DC power supply, including industrial, automotive, and consumer electronics.

Application Areas

Industrial equipment

Automotive electronics

Consumer electronics

Portable devices

Embedded systems

Product Lifecycle

The ADP2118ACPZ-R2 is a discontinued product at our website's sales team. However, Analog Devices offers several alternative models with similar features and performance, such as the ADP2118ACPZ-R7 and ADP2118BCPZ-R7. Customers are advised to contact our website's sales team for more information on available alternatives and to discuss their specific power supply requirements.

Frequently Asked Questions(FAQ)

What are the critical design considerations when selecting the ADP2118ACPZ-R2 for a 3A buck converter in a space-constrained industrial application?
The ADP2118ACPZ-R2 integrates a 600kHz/1.2MHz switching frequency with a compact 16-LFCSP (4x4) package, enabling high power density in limited board area—ideal for industrial automation systems where space and thermal management are constrained. Its synchronous rectification improves efficiency by up to 95% at full load, reducing heat dissipation compared to non-synchronous alternatives. However, designers must account for its 168-hour MSL rating (Level 3), requiring controlled storage and handling to prevent moisture-induced defects during reflow. Additionally, the adjustable output range (0.6V–5.5V) demands careful selection of external resistors to maintain tight regulation under varying loads, especially near the lower end of the output spectrum.
How does the ADP2118ACPZ-R2 compare to the ADP2114 in terms of efficiency and thermal performance under continuous 3A loading?
While both regulators support up to 3A output current, the ADP2118ACPZ-R2 features higher switching frequencies (600kHz/1.2MHz) versus the ADP2114’s fixed 600kHz, allowing smaller inductors and capacitors but potentially increasing conduction losses at extreme loads. In practice, the ADP2118’s integrated MOSFETs achieve ~15–20% better efficiency than the ADP2114 at 3A due to optimized gate drive and reduced parasitic resistance, particularly noticeable above 2A. Thermal performance also favors the ADP2118 in high-ambient environments (up to 125°C junction temperature), as it dissipates less power internally under matched conditions. However, the ADP2114 may be preferable in applications prioritizing simplicity over frequency flexibility.
Can the ADP2118ACPZ-R2 be used reliably in automotive-grade systems without additional qualification?
No, the ADP2118ACPZ-R2 is rated for -40°C to +125°C (junction), which aligns with some automotive infotainment subsystems but lacks AEC-Q100 certification. For functional safety or harsh environment automotive use (e.g., engine control units), additional stress testing and derating are recommended. Operating near 5.5V input rails with transient spikes common in vehicles may require input filtering beyond standard datasheet recommendations to avoid latch-up risks.
What external components are necessary to configure the ADP2118ACPZ-R2 for a stable 3.3V output at 2.5A with minimal ripple?
To achieve a stable 3.3V output at 2.5A, select a low-DCR inductor (e.g., 2.2µH, 4A saturation current) rated for ≥3A RMS current. Use ceramic input/output capacitors (X7R or X5R) totaling ≥22µF on Vin and ≥47µF on Vout with low ESR to minimize ripple. Set feedback resistors using R1 = 10kΩ (standard value) and calculate R2 = 10k × [(3.3/0.6) − 1] ≈ 45kΩ; choose nearest E96 value (46.4kΩ). Place compensation components per AN-1126 to ensure phase margin >45° at crossover frequency.
Why might the ADP2118ACPZ-R2 exhibit instability when switching between light and heavy loads rapidly?
Transient response instability can arise from inadequate output capacitance or poor PCB layout inductance. At light loads (<100mA), discontinuous conduction mode (DCM) introduces variable control loop dynamics that challenge compensation networks. Ensure adequate bulk capacitance (≥47µF) with multiple parallel MLCCs to dampen voltage droop during rapid transitions. Also verify feedback trace routing avoids coupling with noisy switching nodes and that ground plane integrity supports clean return paths.
Is it feasible to parallel two ADP2118ACPZ-R2 devices to deliver 6A while maintaining current sharing?
Direct paralleling without external circuitry is not recommended due to inherent threshold mismatches causing unequal current distribution. Implementing active current sharing requires precision op-amp-based droop sensing or dedicated multiphase controllers. Passive solutions using small ballast resistors introduce unacceptable efficiency losses (>3%) at 6A total. Therefore, redesigning the system around a single higher-current regulator or accepting reduced reliability outweighs marginal cost savings.
How does the ADP2118ACPZ-R2 handle reverse polarity protection compared to integrated solutions?
Unlike many PMICs with built-in reverse-blocking FETs, the ADP2118ACPZ-R2 lacks native reverse polarity protection. Adding an external P-channel MOSFET in series with Vin provides robust protection but increases component count and dropout voltage. Alternatively, a Schottky diode offers simpler implementation with ~0.3V loss, acceptable if efficiency budget allows. Designers should weigh trade-offs based on input voltage range and allowable headroom.
What precautions apply when reflow soldering the ADP2118ACPZ-R2 in mass production?
Given its Moisture Sensitivity Level 3 classification, store ADP2118ACPZ-R2 in dry ambient conditions (≤60% RH) prior to use. Bake units if shelf life exceeds 12 months or exposure exceeds 168 hours. Follow JEDEC J-STD-020 guidelines during reflow: peak temperature ≤245°C, time above liquidus ≤30 seconds. Avoid multiple reflow cycles to prevent pad lifting from thermal stress.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. ADP2118ACPZ-R2

Product Attribute ADP2118ACPZ-2.5-R7 ADP2118ACPZ-1.8-R7 ADP2118ACPZ-3.3-R7 ADP2118ACPZ-1.2-R7
Part Number ADP2118ACPZ-2.5-R7 ADP2118ACPZ-1.8-R7 ADP2118ACPZ-3.3-R7 ADP2118ACPZ-1.2-R7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Output Configuration - - - -
Voltage - Output (Min/Fixed) - - - -
Synchronous Rectifier - - - -
Topology - - - -
Voltage - Input (Max) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Number of Outputs - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Function - - - -
Series - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Output (Max) - - - -
Voltage - Input (Min) - - - -
Current - Output - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Base Product Number - DAC34H84 MAX500 ADS62P42
Frequency - Switching - - - -
Output Type - Current - Unbuffered Voltage - Buffered -

ADP2118ACPZ-R2 Datasheet PDF

Download ADP2118ACPZ-R2 pdf datasheets and Analog Devices Inc. documentation for ADP2118ACPZ-R2 - Analog Devices Inc..

Datasheets
Cylindrical Battery Holders.pdf
Other Related Documents
Tape and Reel Packaging.pdf
PCN Assembly/Origin
Qualification Report 11/May/2014.pdf
PCN Part Status Change
Sm Reel Obs 9/Mar/2017.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


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Electrostatic Discharge Protection and Handling

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ADP2118ACPZ-R2 Image

ADP2118ACPZ-R2

Analog Devices Inc.
32D-ADP2118ACPZ-R2

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