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Home Products Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear + Switching~~ADP2140ACPZ1233R7~~

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ADP2140ACPZ1233R7 - Analog Devices Inc.

Name: Analog Devices Inc. ADP2140ACPZ1233R7
Brand: Analog Devices Inc.
SKU: ADP2140ACPZ1233R7
Availability: InStock
Rating: 5 (2 reviews)

Manufacturer Part Number: ADP2140ACPZ1233R7

Manufacturer: Analog Devices, Inc.

Allelco Part Number: 32D-ADP2140ACPZ1233R7

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 15,389 pcs available, New & Original

Parts Description: IC REG DL BUCK/LNR SYNC 10LFCSP

Package: 10-LFCSP-WD (3x3)

Data sheet: ADP2140ACPZ1233.pdf

Datasheets
Cylindrical Battery Holders.pdf

HTML Datasheet
Cylindrical Battery Holders.pdf

RoHs Status: ROHS3 Compliant

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Specifications

ADP2140ACPZ1233R7 Tech Specifications
Analog Devices Inc. - ADP2140ACPZ1233R7 technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - ADP2140ACPZ1233R7

Product Attribute	Attribute Value
Manufacturer	Analog Devices, Inc.
w/Supervisor	No
w/Sequencer	Yes
w/LED Driver	No
Voltage/Current - Output 3	-
Voltage/Current - Output 2	3.3V, 300mA
Voltage/Current - Output 1	1.2V, 600mA
Voltage - Supply	1.65V ~ 5.5V
Topology	Step-Down (Buck) Synchronous (1), Linear (LDO) (1)

Product Attribute	Attribute Value
Supplier Device Package	10-LFCSP-WD (3x3)
Series	-
Package / Case	10-VFDFN Exposed Pad, CSP
Package	Tape & Reel (TR)
Operating Temperature	-40°C ~ 125°C
Number of Outputs	2
Mounting Type	Surface Mount
Frequency - Switching	3MHz
Base Product Number	ADP2140

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Parts Introduction

ADP2140ACPZ1233R7 (1)

Manufacturer Part Number

ADP2140ACPZ1233R7

Manufacturer

analog-devices

Introduction

The ADP2140 is a highly integrated power management IC (PMIC) that combines a synchronous step-down (buck) converter and a low dropout (LDO) linear regulator in a compact 10-pin VFDFN package. It provides two independent, adjustable power supply channels to support the power requirements of complex system-on-chip (SoC) and system-in-package (SiP) designs. The ADP2140 offers a high level of integration, advanced power management features, and excellent efficiency, making it an ideal solution for a wide range of portable and battery-powered applications.

Product Features and Performance

Synchronous Step-Down (Buck) Converter

- Adjustable Output Voltage: 0.6V to 3.6V

- Output Current: Up to 600mA

- Switching Frequency: 3MHz

- Excellent Efficiency: up to 95%

Linear Regulator (LDO)

- Adjustable Output Voltage: 0.6V to 3.6V

- Output Current: Up to 300mA

Sequencing and Tracking: Supports output voltage sequencing and tracking

Overcurrent, Overvoltage, and Thermal Protection

Small 10-pin VFDFN Package (3mm x 3mm)

Product Advantages

Highly Integrated Power Management Solution

Efficient and Compact Design

Flexible Voltage and Current Output Options

Advanced Power Management Features

Robust Protection Mechanisms

Key Reasons to Choose This Product

Optimal power efficiency and thermal performance for extended battery life

Seamless integration and simplified system design

Reliable and robust operation with comprehensive protection features

Flexibility to support a wide range of portable and battery-powered applications

Quality and Safety Features

Robust overcurrent, overvoltage, and thermal protection

Rigorous quality control and testing processes

Compliance with industry safety standards

Compatibility

The ADP2140 is compatible with a wide range of system-on-chip (SoC) and system-in-package (SiP) designs, making it a versatile power management solution for various portable and battery-powered applications.

Application Areas

Smartphones, tablets, and other mobile devices

Wearable electronics

Internet of Things (IoT) devices

Portable medical and fitness equipment

Industrial and automation systems

Automotive electronics

Product Lifecycle

The ADP2140 is an active product and is currently available for purchase. There are no immediate plans for discontinuation. Customers can check for any available equivalent or alternative models by contacting our website's sales team for the latest product information and availability.

Frequently Asked Questions(FAQ)

How does the ADP2140ACPZ1233R7 handle thermal performance under continuous load in compact PCB layouts, and what design considerations should be made for reliable operation at elevated ambient temperatures?: The ADP2140ACPZ1233R7 features a 10-LFCSP-WD (3x3) package with an exposed pad, which enhances thermal dissipation through direct soldering to the PCB’s ground plane. At full load—600 mA on the 1.2V buck output and 300 mA on the 3.3V LDO—the device can experience junction temperatures approaching 85°C in typical 4-layer board implementations with modest copper area. To maintain reliability within the -40°C to 125°C operating range, designers should ensure adequate thermal vias under the exposed pad and consider airflow or heat-spreading techniques when ambient temperatures exceed 70°C. The integrated sequencer helps manage power-up sequencing, indirectly reducing thermal stress by preventing simultaneous high-current transitions.

What are the key differences between using the ADP2140ACPZ1233R7 as two independent regulators versus leveraging its built-in sequencer for coordinated voltage ramp-up, and how do these choices affect system stability?: When configured as independent regulators, both outputs operate asynchronously, allowing flexible timing but risking instability if one rail experiences a transient while the other is still stabilizing. In contrast, the ADP2140ACPZ1233R7 includes a sequencer that enables controlled, timed startup of the 1.2V and 3.3V rails, minimizing inrush current and reducing cross-talk during power-up. This coordination improves system-level stability, especially in applications like FPGAs or microcontrollers where precise timing is required. Using the sequencer also reduces electromagnetic interference (EMI), as switching transitions are staggered rather than simultaneous.

Can the ADP2140ACPZ1233R7 support input voltages below 2.0V in battery-powered designs, and what efficiency trade-offs arise when operating near its minimum supply voltage of 1.65V?: Yes, the ADP2140ACPZ1233R7 supports input voltages down to 1.65V, making it suitable for single-cell Li-ion or alkaline battery applications. However, at 1.65V input with a 1.2V output, the synchronous buck converter achieves only about 75% efficiency due to increased conduction losses and reduced duty cycle headroom. Efficiency drops further when the 3.3V LDO operates from such a low input, as LDOs inherently dissipate excess voltage as heat. Designers should evaluate whether a lower-output-voltage buck or external LDO bypass is more efficient, or if a higher nominal battery voltage (e.g., 2.7V) would yield better overall system performance.

How does the 3MHz switching frequency of the ADP2140ACPZ1233R7 influence inductor selection compared to lower-frequency alternatives, and what size penalties might be expected in portable devices?: The 3MHz switching frequency allows the use of smaller inductors—typically in the 0.47µH to 1.0µH range—due to higher ripple current tolerance and faster energy transfer cycles. This reduces passive component footprint and can improve transient response. However, smaller inductors often exhibit higher DC resistance (DCR), leading to increased conduction losses, especially at higher loads. In space-constrained designs like wearables or IoT nodes, this trade-off favors size over efficiency. Still, the ADP2140ACPZ1233R7's internal compensation network is optimized for this frequency, enabling stable operation with standard ceramic capacitors and minimizing external tuning complexity.

In what scenarios would the ADP2140ACPZ1233R7 be preferred over a discrete buck + LDO solution, and what cost or BOM reduction benefits might justify its use despite a potentially higher unit price?: The ADP2140ACPZ1233R7 integrates two regulated outputs with a sequencer and synchronous buck architecture, eliminating the need for separate ICs and associated control circuitry. Compared to a discrete buck controller driving an external MOSFET plus a standalone LDO, the monolithic solution reduces component count by up to five parts (MOSFETs, drivers, feedback resistors, decoupling caps), simplifies layout, and lowers total bill of materials (BOM). For medium-volume designs where assembly savings and reliability outweigh per-unit cost, the ADP2140ACPZ1233R7 offers compelling value—particularly in space-limited systems like medical wearables or industrial sensors.

What are the implications of the ADP2140ACPZ1233R7’s Moisture Sensitivity Level 3 classification for reflow soldering processes, and how must storage and handling procedures be adapted?: With an MSL3 rating (168 hours), the ADP2140ACPZ1233R7 must be used within 168 hours after opening the moisture-barrier bag unless baked. After this window, baking at 125°C for 24 hours is recommended before reflow. During assembly, the standard JEDEC J-STD-020 reflow profile applies—peak temperature not exceeding 260°C for no more than 30 seconds. Failure to adhere to these guidelines risks popcorning due to trapped moisture vaporizing during thermal cycling. Proper inventory management and FIFO (first-in-first-out) usage are essential to avoid shelf-life violations in high-volume manufacturing environments.

How does the ADP2140ACPZ1233R7’s output current capability compare to similar dual-regulator PMICs like the LTC3639 or MAX17576 when powering mixed-signal loads such as ADCs and digital logic?: While the LTC3639 provides higher peak currents (up to 1A per channel), the ADP2140ACPZ1233R7 offers a balanced 600mA/300mA split optimized for low-noise analog and core digital domains. For driving a 12-bit ADC requiring clean 1.2V supply alongside a 3.3V I/O rail, the ADP2140ACPZ1233R7 delivers superior PSRR on the LDO output (typically -60dB at 1kHz) compared to many switching-based solutions. The MAX17576, though efficient, lacks integrated sequencing and operates at a fixed 2.25MHz, limiting flexibility. Thus, for precision analog-digital coexistence, the ADP2140ACPZ1233R7 strikes a favorable balance between noise immunity, integration, and moderate current delivery.

Is it feasible to parallel the ADP2140ACPZ1233R7’s 1.2V buck output to deliver more than 600mA, and what risks or design challenges would such an approach introduce?: Directly paralleling the 1.2V buck output is not recommended due to potential current imbalance caused by slight variations in switching phase or internal reference voltages. Even small mismatches could result in one channel carrying significantly more current, leading to localized heating and reduced reliability. Instead, designers should select a higher-current buck regulator or use an external post-regulation stage. If increased output is necessary, adding a second ADP2140ACPZ1233R7 with synchronized clock inputs (if available) and careful PCB layout symmetry may be considered—but this increases complexity without guaranteed benefit given the device’s already capable 600mA rating.

What role does the ADP2140ACPZ1233R7 play in meeting EMI compliance standards for wireless communication modules embedded in consumer electronics?: The ADP2140ACPZ1233R7 contributes to EMI mitigation through its 3MHz switching frequency, which falls outside common Bluetooth/Wi-Fi bands, reducing spectral overlap. Its integrated sequencer prevents simultaneous switching transients, lowering conducted emissions during power-up. Additionally, the internal spread-spectrum modulation (depending on variant) further softens harmonic content. Combined with proper input/output filtering and layout practices, the device supports FCC Part 15 and CE EN55032 Class B compliance in compact designs—eliminating the need for bulky shielding in many cases.

How should feedback resistor values be selected for the ADP2140ACPZ1233R7 to optimize accuracy and noise performance while minimizing quiescent current consumption?: For the 1.2V output, a standard divider ratio of Rtop = 10kΩ and Rbot = 12kΩ yields approximately 1.2V with minimal loading on the feedback node. For the 3.3V LDO, Rtop = 15kΩ and Rbot = 10kΩ provides the correct setpoint. Lower resistor values (<10kΩ) reduce noise sensitivity but increase bias current draw; higher values (>50kΩ) improve efficiency but make the node susceptible to leakage and noise coupling. Given the ADP2140ACPZ1233R7’s typical feedback reference accuracy of ±1%, resistor tolerances should be ≤1% and thermally matched to prevent drift over temperature.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. ADP2140ACPZ1233R7

Product Attribute
Part Number	ADP2140ACPZ1533R7	ADP2140ACPZ1833R7	ADP2140ACPZ1528R7	ADP2140ACPZ18812R7
Manufacturer	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Topology	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
w/Sequencer	-	-	-	-
w/LED Driver	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Voltage/Current - Output 2	-	-	-	-
w/Supervisor	-	-	-	-
Series	-	-	-	-
Voltage/Current - Output 3	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Frequency - Switching	-	-	-	-
Voltage - Supply	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Voltage/Current - Output 1	-	-	-	-
Number of Outputs	-	-	-	-

ADP2140ACPZ1233R7 Datasheet PDF

Download ADP2140ACPZ1233R7 pdf datasheets and Analog Devices Inc. documentation for ADP2140ACPZ1233R7 - Analog Devices Inc..

Datasheets: Cylindrical Battery Holders.pdf
HTML Datasheet: Cylindrical Battery Holders.pdf

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Customer Reviews

Evaluation: 10 Articles

Arch***ct

Jul 15, 2026

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.
FPGA***lorer88

Jul 7, 2026

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

Jun 29, 2026

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
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.

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