Overview
The ADP3338AKCZ-1.8-RL is a high-accuracy, ultralow quiescent current (IQ), 1 A low dropout (LDO) voltage regulator produced by Analog Devices Inc. This device is part of the ADP33xx family and is known for its precision and performance advantages. It operates with an input voltage range of 2.7 V to 8 V and provides a regulated output voltage of 1.8 V. The ADP3338 is designed to deliver high output current while maintaining low dropout voltage and ultralow quiescent current, making it suitable for a variety of applications requiring efficient power management.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 8 | V |
| Output Voltage | 1.8 | V |
| Output Current | 1 | A |
| Dropout Voltage (Typical at 1 A) | 190 | mV |
| Quiescent Current (Typical) | 110 | µA |
| Accuracy (at 25°C) | ±0.8% | |
| Accuracy (Over Temperature, Line, and Load) | ±1.4% | |
| Ambient Temperature Range | -40 to +85 | °C |
| Package Type | 3-Lead SOT-223 | |
| Output Capacitor Requirement | 1 µF |
Key Features
- High accuracy: ±0.8% at room temperature and ±1.4% over temperature, line, and load variations.
- Ultralow dropout voltage: 190 mV (typical) at 1 A.
- Ultralow quiescent current: 110 µA (typical) in light load situations.
- Stable with any good quality capacitor, including ceramic (MLCC) types.
- Requires only a 1 µF output capacitor for stability.
- Insensitivity to output capacitor equivalent series resistance (ESR).
- Safety features include current limit and thermal overload protection.
- Low noise operation.
Applications
- Notebook and palmtop computers.
- SCSI terminators.
- Battery-powered systems.
- Bar code scanners.
- Camcorders and cameras.
- Home entertainment systems.
- Networking systems.
- DSP/ASIC supplies.
Q & A
- What is the input voltage range of the ADP3338AKCZ-1.8-RL?
The input voltage range is 2.7 V to 8 V.
- What is the output voltage of the ADP3338AKCZ-1.8-RL?
The output voltage is 1.8 V.
- What is the maximum output current of the ADP3338AKCZ-1.8-RL?
The maximum output current is 1 A.
- What is the typical dropout voltage at 1 A for the ADP3338AKCZ-1.8-RL?
The typical dropout voltage at 1 A is 190 mV.
- What is the quiescent current of the ADP3338AKCZ-1.8-RL in light load situations?
The quiescent current is 110 µA (typical) in light load situations.
- What type of capacitor is required for stability, and what is the minimum capacitance?
The device requires only a 1 µF output capacitor for stability and is stable with any good quality capacitor, including ceramic (MLCC) types.
- Does the ADP3338AKCZ-1.8-RL have built-in safety features?
Yes, it includes current limit and thermal overload protection.
- What is the ambient temperature range for the ADP3338AKCZ-1.8-RL?
The ambient temperature range is -40°C to +85°C.
- In what package is the ADP3338AKCZ-1.8-RL available?
The device is available in a 3-Lead SOT-223 package.
- What are some typical applications for the ADP3338AKCZ-1.8-RL?
Typical applications include notebook and palmtop computers, SCSI terminators, battery-powered systems, bar code scanners, camcorders, home entertainment systems, networking systems, and DSP/ASIC supplies.
