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Home Products Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear~~ADP3303ARZ-3.3-RL7~~

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ADP3303ARZ-3.3-RL7 - Analog Devices Inc.

Name: Analog Devices Inc. ADP3303ARZ-3.3-RL7
Brand: Analog Devices Inc.
SKU: ADP3303ARZ-3.3-RL7
Price: 2.326 USD
Availability: InStock
Rating: 5 (4 reviews)

Manufacturer Part Number: ADP3303ARZ-3.3-RL7

Manufacturer: Analog Devices, Inc.

Allelco Part Number: 32D-ADP3303ARZ-3.3-RL7

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 16,266 pcs available, New & Original

Parts Description: IC REG LINEAR 3.3V 200MA 8SOIC

Package: 8-SOIC

Data sheet: ADP3303ARZ-3.3-.pdf

Datasheets
Cylindrical Battery Holders.pdf

Other Related Documents
Tape and Reel Packaging.pdf

PCN Assembly/Origin
SOICN-8L,14L Alternate Assembly Site 13/Nov/2013.pdf

Design Resources
Precision Weigh Scale Design Using AD7190 with Int.pdf Precision Weigh Scale Design Using AD7191 with Int.pdf Precision Weigh Scale Design Using AD7192 with Int.pdf

RoHs Status: ROHS3 Compliant

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Specifications

ADP3303ARZ-3.3-RL7 Tech Specifications
Analog Devices Inc. - ADP3303ARZ-3.3-RL7 technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - ADP3303ARZ-3.3-RL7

Product Attribute	Attribute Value
Manufacturer	Analog Devices, Inc.
Voltage Dropout (Max)	0.4V @ 200mA
Voltage - Output (Min/Fixed)	3.3V
Voltage - Output (Max)	-
Voltage - Input (Max)	12V
Supplier Device Package	8-SOIC
Series	anyCAP®
Protection Features	Over Temperature
Package / Case	8-SOIC (0.154', 3.90mm Width)
Package	Tape & Reel (TR)
PSRR	-

Product Attribute	Attribute Value
Output Type	Fixed
Output Configuration	Positive
Operating Temperature	-20°C ~ 85°C
Number of Regulators	1
Mounting Type	Surface Mount
Current - Supply (Max)	4 mA
Current - Quiescent (Iq)	400 µA
Current - Output	200mA
Control Features	Error Flag, Shutdown
Base Product Number	ADP3303

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Parts Introduction

ADP3303ARZ-3.3-RL7 (1)

Manufacturer Part Number

ADP3303ARZ-3.3-RL7

Manufacturer

Analog Devices, Inc.

Introduction

High-performance linear voltage regulator with fixed output voltage

Product Features and Performance

Fixed 3.3V output voltage

Up to 200mA output current

Wide 12V maximum input voltage range

Low 0.4V voltage dropout at full load

Thermal shutdown protection

Error flag and shutdown control features

Single-channel, positive output configuration

Low 400μA quiescent current

Low 4mA maximum supply current

Product Advantages

Reliable operation in wide temperature range (-20°C to 85°C)

Compact 8-SOIC surface mount package

Suitable for various power management applications

Key Technical Parameters

Output Voltage: 3.3V

Output Current: 200mA

Input Voltage: 12V (maximum)

Voltage Dropout: 0.4V @ 200mA

Number of Regulators: 1

Quiescent Current: 400μA

Supply Current: 4mA (maximum)

Quality and Safety Features

Over-temperature protection

RoHS3 compliant

Compatibility

Surface mount 8-SOIC package

Tape and reel packaging

Application Areas

Power management for various electronic devices

Voltage regulation for analog and digital circuits

Point-of-load regulation in distributed power systems

Product Lifecycle

This product is currently in production and not nearing discontinuation.

Replacement or upgrade options may be available from Analog Devices, Inc.

Key Reasons to Choose This Product

Reliable and stable 3.3V output voltage

High efficiency with low voltage dropout

Comprehensive protection features for safe operation

Small footprint 8-SOIC package for space-constrained designs

Suitable for a wide range of power management applications

Frequently Asked Questions(FAQ)

What is the maximum input voltage and dropout voltage of the ADP3303ARZ-3.3-RL7 linear regulator when delivering 200mA, and how do these parameters impact system efficiency in battery-powered applications?: The ADP3303ARZ-3.3-RL7 supports a maximum input voltage of 12V, making it suitable for systems with higher supply rails such as automotive or industrial environments. At a full 200mA load current, the device exhibits a maximum dropout voltage of 0.4V, meaning the input must remain at least 3.7V to maintain stable 3.3V output. This relatively low dropout improves efficiency compared to older LDOs with higher Vdo, especially in battery-operated devices where extended runtime is critical. However, in deeply discharged batteries (e.g., below 3.7V), the regulator may not function properly due to insufficient headroom.

How does the quiescent current of the ADP3303ARZ-3.3-RL7 compare to other 3.3V LDOs in its class, and what implications does this have for low-power embedded designs?: With a typical quiescent current of 400 µA, the ADP3303ARZ-3.3-RL7 offers moderate power efficiency in standby modes. While not the lowest among modern micropower regulators (some competitors achieve under 100 µA), it provides a favorable balance between noise performance, transient response, and simplicity. In battery-powered IoT nodes that spend significant time in sleep mode, this current draw directly impacts total energy consumption over time, potentially reducing operational life by hours or even days depending on sleep-to-active duty cycles.

Can the ADP3303ARZ-3.3-RL7 be used with ceramic output capacitors without additional considerations, and what stability requirements apply in high-loop-gain configurations?: Yes, the ADP3303ARZ-3.3-RL7 is designed to be stable with standard ceramic output capacitors, including low-ESR types commonly used in space-constrained designs. Unlike some legacy LDOs requiring large tantalum capacitors for compensation, this part incorporates internal frequency compensation optimized for ceramic caps. However, when using ultra-low capacitance values (below 1µF) or tightly coupled PCB traces, phase margin degradation may occur. Designers should verify transient response during prototyping and consider adding a small series resistance if ringing is observed.

What protection features are integrated into the ADP3303ARZ-3.3-RL7, and how do they enhance reliability in harsh environments?: The ADP3303ARZ-3.3-RL7 includes over-temperature shutdown, which activates when junction temperatures exceed safe operating limits—typically around 150°C. This prevents thermal runaway in fault conditions such as shorted loads or poor thermal management. While it lacks overtemperature warning or hiccup-mode recovery, the simple latch-off behavior ensures the IC halts conduction until cooled. Combined with its 8-SOIC package’s moderate thermal resistance (≈160°C/W), this makes it robust for applications where passive cooling is limited but catastrophic failure must be avoided.

Is the ADP3303ARZ-3.3-RL7 suitable for automotive-grade temperature cycling, given its -20°C to +85°C operating range?: The ADP3303ARZ-3.3-RL7 operates reliably from -20°C to +85°C, which exceeds many industrial standards but falls short of AEC-Q100 Grade 2 (-40°C to +105°C). Therefore, it is not inherently qualified for full automotive environments subject to extreme cold-start conditions or prolonged high-temperature exposure. For non-automotive industrial or commercial systems within its specified range, however, it performs consistently, provided layout and thermal design meet recommended practices.

How does the ADP3303ARZ-3.3-RL7 handle load transients compared to faster-response LDOs like the LT1761 or TPS799 series?: The ADP3303ARZ-3.3-RL7 has a fixed internal error amplifier bandwidth typical of mid-range LDOs, resulting in moderate transient response. Under sudden load changes (e.g., 0–200mA in microseconds), it maintains regulation with acceptable overshoot and undershoot, but not as tightly controlled as ultrafast regulators like the TPS799 (which uses an active feedback loop optimized for sub-microsecond settling). For most general-purpose digital logic or sensor power supplies, the ADP3303ARZ-3.3-RL7 suffices; however, sensitive analog frontends may require lower-noise alternatives with better PSRR and slew-limited outputs.

What is the significance of the "anyCAP" branding on the ADP3303ARZ-3.3-RL7, and how does it affect capacitor selection flexibility?: The anyCAP feature indicates that the ADP3303ARZ-3.3-RL7 employs a proprietary control architecture that allows stable operation across a wide range of output capacitor types—including both low-ESR ceramics and traditional high-ESR electrolytics. This eliminates the need for precise ESR matching, simplifying BOM management and improving manufacturability. As long as the total capacitance is above the minimum recommended value (usually 1µF), the regulator remains stable without external compensation components.

Does the ADP3303ARZ-3.3-RL7 support enable/disable functionality via its EN pin, and how should unused control pins be handled during startup?: Yes, the ADP3303ARZ-3.3-RL7 includes an active-high enable pin that allows logic-level control over power sequencing. When pulled low, the output is disabled, and quiescent current drops significantly. Unused control features like the error flag (if monitored) should be tied appropriately: the open-drain error flag can be left floating only if not actively used; otherwise, it should connect to a pull-up resistor. During startup, ensure the enable signal transitions cleanly after input voltage stabilizes to avoid inrush issues.

What are the key differences between the ADP3303ARZ-3.3-RL7 and the ADP3303ARZ-5.0-RL7, particularly in terms of voltage regulation accuracy and application suitability?: Both share identical electrical characteristics except for the fixed output voltage: the ADP3303ARZ-3.3-RL7 delivers 3.3V while the 5.0V variant provides 5.0V. Voltage accuracy (±2%), dropout performance, and quiescent current are the same. The choice depends on downstream component requirements—3.3V suits modern microcontrollers and FPGAs, whereas 5.0V may still be needed for legacy peripherals or certain optocouplers. Neither version offers adjustable output, so selection hinges purely on system voltage budget.

Can multiple ADP3303ARZ-3.3-RL7 regulators be paralleled for higher output currents, and what precautions apply?: Parallel operation of ADP3303ARZ-3.3-RL7 units is not recommended due to inherent current imbalance risks. Each regulator has slight variations in reference voltage and pass transistor gain, leading to uneven current sharing. Unless equipped with dedicated current-sharing circuitry (not present here), one unit may dominate while others remain underutilized or overstressed. For >200mA requirements, consider a single higher-current LDO or switching regulator instead.

How does the 8-SOIC packaging of the ADP3303ARZ-3.3-RL7 influence thermal performance in dense PCB layouts?: The 8-SOIC (3.9mm width) package has limited exposed thermal pad and poor heat dissipation compared to DFN or QFN variants. Its thermal resistance from junction to ambient (θJA) is approximately 160°C/W in free air, meaning a 1W power loss causes a 160°C rise. In compact designs with adjacent high-power components, inadequate copper area or vias exacerbate heating. Adequate ground plane use and airflow help, but sustained loads near 150mA may require derating to stay within temperature specs.

Is reverse polarity protection feasible using the ADP3303ARZ-3.3-RL7, and what external components would be needed?: The ADP3303ARZ-3.3-RL7 does not include built-in reverse-voltage protection. To prevent damage from accidental battery reversal, add a Schottky diode in series with the input (cathode toward Vin). Alternatively, use a P-channel MOSFET as a high-side switch configured for reverse-blocking. Note that the diode introduces ~0.3V drop, slightly increasing dropout requirements. Without such protection, applying negative voltage or reversed polarity can permanently damage the IC.

What is the moisture sensitivity level (MSL) classification of the ADP3303ARZ-3.3-RL7, and how does it affect handling during assembly?: The ADP3303ARZ-3.3-RL7 is rated MSL 1 (Unlimited), indicating no special storage or baking requirements before soldering. It can be stored indefinitely at ambient conditions without risk of moisture-induced cracking during reflow. This simplifies inventory management and reduces lead times for production lots, especially beneficial for small-batch or prototype builds where shelf-life concerns are minimal.

How does the ADP3303ARZ-3.3-RL7 compare to switching regulators in terms of noise and EMI for noise-sensitive analog circuits?: As a linear regulator, the ADP3303ARZ-3.3-RL7 produces far lower electromagnetic interference (EMI) than buck converters due to absence of high-frequency switching. Output noise is typically in the tens of µV RMS, suitable for moderate-precision analog systems. However, its PSRR is unspecified (often poor above 1kHz), so noisy input rails (e.g., unregulated wall adapters) can couple ripple into the output. For best results, pair with adequate input filtering and keep sensitive analog grounds separate from digital return paths.

Are there any known layout considerations specific to the ADP3303ARZ-3.3-RL7 that improve stability and EMI performance?: Yes—minimize loop area between input capacitor, IC, and output capacitor. Place decoupling caps as close as possible to pins 1 (GND) and 5 (VOUT). Use solid ground planes and avoid routing high-current traces near sensitive feedback nodes. Although no external compensation is needed, improper trace inductance can degrade transient response. Additionally, orient the IC so thermal vias (if added) conduct heat efficiently to inner layers, preventing localized hotspots that could trigger thermal shutdown prematurely.

What RoHS and environmental compliance status applies to the ADP3303ARZ-3.3-RL7, and does it contain restricted substances?: The ADP3303ARZ-3.3-RL7 complies with RoHS3 directives, confirming absence of lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE beyond permitted thresholds. It is also REACH unaffected, meaning no SVHCs (Substances of Very High Concern) are intentionally included above 0.1% weight. These statuses simplify regulatory submissions for medical, consumer, and industrial equipment targeting global markets without additional testing burdens.

Where can engineers find detailed application notes or reference designs involving the ADP3303ARZ-3.3-RL7 for common use cases?: Analog Devices provides extensive technical documentation, including AN-734 (Power Supply Design Techniques) and application notes covering LDO selection, stability analysis, and thermal modeling. Specific reference designs for battery backup, post-regulation, and sequencing are available on the Analog Devices website under the ADP3303 product page. These resources include schematics, layout guidelines, and test data that validate real-world performance under various load profiles and environmental conditions.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. ADP3303ARZ-3.3-RL7

Product Attribute
Part Number	ADP3303AR-3.3-RL7	ADP3303ARZ-3.3REEL	ADP3303AR-3.3-REEL	ADP3305ARU-3.3-RL
Manufacturer	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Current - Supply (Max)	-	-	-	-
Voltage - Output (Max)	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Output Configuration	-	-	-	-
PSRR	-	-	-	-
Voltage Dropout (Max)	-	-	-	-
Voltage - Output (Min/Fixed)	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Series	-	-	-	-
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Voltage - Input (Max)	-	-	-	-
Number of Regulators	-	-	-	-
Control Features	-	-	-	-
Current - Quiescent (Iq)	-	-	-	-
Protection Features	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Current - Output	-	-	-	-

ADP3303ARZ-3.3-RL7 Datasheet PDF

Download ADP3303ARZ-3.3-RL7 pdf datasheets and Analog Devices Inc. documentation for ADP3303ARZ-3.3-RL7 - Analog Devices Inc..

Datasheets: Cylindrical Battery Holders.pdf
Other Related Documents: Tape and Reel Packaging.pdf
PCN Assembly/Origin: SOICN-8L,14L Alternate Assembly Site 13/Nov/2013.pdf
Design Resources: Precision Weigh Scale Design Using AD7190 with Int.pdf Precision Weigh Scale Design Using AD7191 with Int.pdf Precision Weigh Scale Design Using AD7192 with Int.pdf

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Customer Reviews

Evaluation: 10 Articles

Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
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.

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