Overview
The ADP3339AKCZ-1.8-R7 is a precision, low dropout (LDO) voltage regulator produced by Analog Devices Inc. It is part of the ADP33xx family and is known for its high performance and versatility. This regulator operates with an input voltage range of 2.8 V to 6 V and can deliver a load current up to 1.5 A. The ADP3339 stands out with its novel architecture and enhanced process, offering superior performance and higher output current compared to conventional LDOs.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | 2.8 | 6 | V | ||
| Output Voltage | VOUT | 1.8 | V | |||
| Output Current | ILOAD | 0.1 mA | 1.5 A | |||
| Output Voltage Accuracy at Room Temperature | VOUT | VIN = VOUTNOM + 0.5 V to 6 V, ILOAD = 0.1 mA to 1.5 A, TJ = 25°C | -0.9% | +0.9% | % | |
| Output Voltage Accuracy over Temperature, Line, and Load Variations | VOUT | VIN = VOUTNOM + 0.5 V to 6 V, ILOAD = 0.1 mA to 1.5 A, TJ = -40°C to +125°C | -1.5% | +1.5% | % | |
| Dropout Voltage at 1.5 A | VDO | 230 mV | mV | |||
| Quiescent Current | IQ | 130 μA | μA | |||
| Ambient Temperature Range | TJ | -40°C | +85°C | °C | ||
| Package | SOT-223 |
Key Features
- Precision Output Voltage: The ADP3339 achieves exceptional accuracy of ±0.9% at room temperature and ±1.5% over temperature, line, and load variations.
- Low Dropout Voltage: The dropout voltage is only 230 mV (typical) at 1.5 A, ensuring efficient operation.
- Low Noise and High Ripple Rejection: The regulator offers low noise and high ripple rejection, making it suitable for noise-sensitive applications.
- Current and Thermal Limiting: Includes safety current limit and thermal overload protection to prevent damage from accidental overloads).
- Ultralow Quiescent Current: Features an ultralow quiescent current of 130 μA (typical) in light load situations, which is beneficial for battery-powered systems).
- Stability with Any Good Quality Capacitor: The device is stable with any good quality capacitor, including ceramic (MLCC) types, and requires only a 1.0 μF output capacitor for stability).
Applications
- Notebooks and Palmtop Computers: Ideal for portable computing devices due to its low power consumption and high efficiency).
- SCSI Terminators and PCMCIA Regulators: Suitable for various peripheral devices requiring stable voltage regulation).
- Battery-Powered Systems: Optimized for use in battery-powered systems due to its low quiescent current and high efficiency).
- Bar Code Scanners and Camcorders/Cameras: Used in various handheld and portable electronic devices requiring stable and efficient power supply).
Q & A
- What is the input voltage range of the ADP3339AKCZ-1.8-R7?
The input voltage range is from 2.8 V to 6 V).
- What is the maximum output current of the ADP3339AKCZ-1.8-R7?
The maximum output current is up to 1.5 A).
- What is the typical dropout voltage of the ADP3339AKCZ-1.8-R7 at 1.5 A?
The typical dropout voltage is 230 mV at 1.5 A).
- What kind of protection does the ADP3339AKCZ-1.8-R7 have?
The device includes current limit and thermal overload protection).
- What is the quiescent current of the ADP3339AKCZ-1.8-R7 in light load situations?
The quiescent current is 130 μA (typical) in light load situations).
- What type of capacitors can be used with the ADP3339AKCZ-1.8-R7 for stability?
The device is stable with any good quality capacitor, including ceramic (MLCC) types, and requires only a 1.0 μF output capacitor for stability).
- What is the ambient temperature range of the ADP3339AKCZ-1.8-R7?
The ambient temperature range is from -40°C to +85°C).
- In what package is the ADP3339AKCZ-1.8-R7 available?
The device is available in a 3-lead SOT-223 package).
- What are some typical applications of the ADP3339AKCZ-1.8-R7?
Typical applications include notebooks, palmtop computers, SCSI terminators, battery-powered systems, bar code scanners, and camcorders/cameras).
- How does the ADP3339AKCZ-1.8-R7 handle thermal overload?
The device is protected against thermal overload by limiting the die temperature to a maximum of 160°C. If the temperature exceeds this limit, the output current is reduced until the temperature drops to a safe level).
