Overview
The ADP3338AKC-3.3-RL, produced by Analog Devices Inc., is a high-accuracy, ultralow quiescent current, 1 A anyCAP® low dropout (LDO) voltage regulator. This device is part of the ADP33xx family and stands out from conventional LDOs with its novel architecture and enhanced process, offering superior performance and higher output current. The ADP3338 operates with an input voltage range of 2.7 V to 8 V and delivers a load current up to 1 A, making it suitable for a variety of applications requiring high precision and low dropout voltage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 8 | V |
| Output Voltage | 1.5, 1.8, 2.5, 2.85, 3.3 (dependent on model) | V |
| Maximum Output Current | 1 | A |
| Accuracy (at 25°C) | ±0.8% | |
| Accuracy (over temperature) | ±1.4% | |
| Dropout Voltage (typical at 1 A) | 190 mV | mV |
| Quiescent Current (typical) | 110 µA | µA |
| Ambient Temperature Range | -40 to +85 | °C |
| Package Type | SOT-223 | |
| Output Capacitor Requirement | 1.0 µF | µF |
Key Features
- High accuracy over line and load: ±0.8% at 25°C, ±1.4% over temperature.
- Ultralow dropout voltage: 190 mV (typical) at 1 A.
- Requires only a 1.0 µF output capacitor for stability, and is stable with any good quality capacitor, including ceramic (MLCC) types.
- Current and thermal limiting for safety.
- Low noise operation.
- Ultralow quiescent current: 110 µA (typical) in light load situations.
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 ADP3338?
The input voltage range of the ADP3338 is from 2.7 V to 8 V.
- What is the maximum output current of the ADP3338?
The maximum output current of the ADP3338 is 1 A.
- What is the typical dropout voltage of the ADP3338 at 1 A?
The typical dropout voltage of the ADP3338 at 1 A is 190 mV.
- What is the required output capacitor for stability?
The ADP3338 requires only a 1.0 µF output capacitor for stability.
- Is the ADP3338 sensitive to output capacitor ESR?
No, the ADP3338 is insensitive to output capacitor equivalent series resistance (ESR) and is stable with any good quality capacitor, including ceramic (MLCC) types.
- What are the safety features of the ADP3338?
The ADP3338 includes current and thermal limiting for safety.
- What is the quiescent current of the ADP3338 in light load situations?
The quiescent current of the ADP3338 in light load situations is typically 110 µA.
- What is the ambient temperature range of the ADP3338?
The ambient temperature range of the ADP3338 is from -40°C to +85°C.
- In what package type is the ADP3338 available?
The ADP3338 is available in the SOT-223 package type.
- What are some common applications of the ADP3338?
The ADP3338 is commonly used in notebook and palmtop computers, SCSI terminators, battery-powered systems, bar code scanners, camcorders, cameras, home entertainment systems, networking systems, and DSP/ASIC supplies.
