Overview
The ADP2140ACPZ1833R7 is a dual-output voltage regulator integrated circuit (IC) manufactured by Analog Devices Inc. This IC combines a high-efficiency step-down (buck) synchronous converter and a low-dropout linear regulator (LDO) in a compact 10-lead LFCSP package. It is designed to provide efficient power management solutions for a variety of applications, particularly in portable and battery-powered devices.
The device features a buck regulator with a maximum output current of 600 mA and an LDO with a maximum output current of 300 mA. It operates over a wide input voltage range from 1.65 V to 5.5 V, making it suitable for various power sources including single Li+/Li− polymer cells, multiple alkaline/NiMH cells, and other standard power sources.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Part Number | ADP2140ACPZ1833R7 | |
| Description | IC REG DL BCK/LINEAR 10LFCSP | |
| Topology | Step-Down (Buck) Synchronous (1), Linear (LDO) (1) | |
| Number of Outputs | 2 | |
| Frequency - Switching | 3 MHz | |
| Voltage/Current - Output 1 | 1.8 V, 600 mA | |
| Voltage/Current - Output 2 | 1.5 V, 300 mA | |
| Voltage - Supply | 1.65 V ~ 5.5 V | |
| Operating Temperature | -40°C ~ 125°C | |
| Mounting Type | Surface Mount | |
| Package / Case | 10-WFDFN Exposed Pad, CSP | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Key Features
- High Efficiency: The ADP2140 features a high-efficiency buck regulator using a proprietary high-speed current-mode, constant frequency, pulse-width modulation (PWM) control scheme for excellent stability and transient response.
- Low Quiescent Current: Both the buck regulator and the LDO are designed with low quiescent current to ensure long battery life in portable applications.
- Power Saving Mode: The device includes a power-saving variable frequency mode to reduce switching frequency under light loads.
- Soft Start and Sequencing: The IC includes soft start to prevent input current overshoot at startup and multiple power sequencing options through two enable inputs.
- Protection Features: It includes undervoltage lockout, short-circuit protection, and thermal overload protection to ensure reliable operation.
- Compact Package: The 10-lead LFCSP package is compact and suitable for space-constrained designs.
Applications
- Portable Electronics: Ideal for battery-powered devices such as smartphones, tablets, and handheld gaming consoles.
- Industrial Control Systems: Suitable for use in industrial control systems where efficient power management is critical.
- Medical Devices: Can be used in medical devices that require reliable and efficient power supply solutions.
- Aerospace and Defense: Applicable in aerospace and defense systems where compact, high-efficiency power regulators are necessary.
- Consumer Electronics: Used in various consumer electronics such as set-top boxes, routers, and other network devices.
Q & A
- What is the part number of this IC?
The part number is ADP2140ACPZ1833R7.
- Who is the manufacturer of this IC?
The manufacturer is Analog Devices Inc.
- What is the topology of the ADP2140?
The topology is Step-Down (Buck) Synchronous (1) and Linear (LDO) (1).
- What are the output voltages and currents of the ADP2140?
The output voltages and currents are 1.8 V, 600 mA for Output 1 and 1.5 V, 300 mA for Output 2.
- What is the input voltage range of the ADP2140?
The input voltage range is from 1.65 V to 5.5 V.
- What is the operating temperature range of the ADP2140?
The operating temperature range is from -40°C to 125°C.
- Does the ADP2140 include any protection features?
Yes, it includes undervoltage lockout, short-circuit protection, and thermal overload protection.
- What is the switching frequency of the ADP2140?
The switching frequency is 3 MHz.
- Is the ADP2140 RoHS compliant?
Yes, the ADP2140 is lead-free and RoHS compliant.
- What is the package type of the ADP2140?
The package type is 10-WFDFN Exposed Pad, CSP.
- What are some typical applications of the ADP2140?
Typical applications include portable electronics, industrial control systems, medical devices, aerospace and defense systems, and consumer electronics.
