Overview
The ADP2138ACBZ-3.3-R7 is a high-efficiency, synchronous step-down DC-DC converter produced by Analog Devices Inc. This component is designed to provide reliable output with a current capability suitable for a wide range of applications. It features high-frequency operation, enabling the design of slim and lightweight solutions. The ADP2138ACBZ-3.3-R7 is part of the ADP2138 series, known for its low quiescent current and robust protection mechanisms.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Function | Step-Down | |
| Output Configuration | Positive | |
| Topology | Buck | |
| Output Type | Fixed | |
| Voltage - Input (Min) | 2.3 | V |
| Voltage - Input (Max) | 5.5 | V |
| Voltage - Output (Fixed) | 3.3 | V |
| Current - Output | 800 mA | |
| Frequency - Switching | 3 MHz | |
| Synchronous Rectifier | Yes | |
| Operating Temperature | -40°C to 85°C (TA) | |
| Mounting Type | Surface Mount | |
| Package / Case | 6-WLCSP (1.03x1.50) | |
| Minimum Operating Temperature | -40°C | |
| Maximum Operating Temperature | 125°C | |
| Load Regulation | -0.95 %/A | |
| Quiescent Current | 24 μA | |
| Shutdown Current | 0.2 μA (typical) |
Key Features
- High-efficiency synchronous step-down DC-DC conversion
- Low quiescent current: 24 μA (typical) in operating mode and 0.2 μA (typical) in shutdown mode
- Internal synchronous rectifier, compensation, and soft start
- Current overload and thermal shutdown protections
- Forced PWM and automatic PWM/PSM modes
- Supported by ADIsimPower™ design tool
- Compact 6-WLCSP package (1.03x1.50 mm)
- High switching frequency: 3 MHz
- Low output voltage ripple due to high-frequency operation
Applications
- PDAs and palmtop computers
- Wireless handsets
- Digital audio and portable media players
- Digital cameras and GPS navigation units
- Other portable electronic devices requiring efficient power management
Q & A
- What is the input voltage range of the ADP2138ACBZ-3.3-R7?
The input voltage range is from 2.3V to 5.5V.
- What is the fixed output voltage of the ADP2138ACBZ-3.3-R7?
The fixed output voltage is 3.3V.
- What is the maximum output current of the ADP2138ACBZ-3.3-R7?
The maximum output current is 800 mA.
- What is the switching frequency of the ADP2138ACBZ-3.3-R7?
The switching frequency is 3 MHz.
- Does the ADP2138ACBZ-3.3-R7 have a synchronous rectifier?
Yes, it has an internal synchronous rectifier.
- What are the operating temperature ranges for the ADP2138ACBZ-3.3-R7?
The operating temperature range is from -40°C to 85°C (TA).
- What is the package type of the ADP2138ACBZ-3.3-R7?
The package type is 6-WLCSP (1.03x1.50 mm).
- Does the ADP2138ACBZ-3.3-R7 support forced PWM and automatic PWM/PSM modes?
Yes, it supports both forced PWM and automatic PWM/PSM modes.
- What are the protection mechanisms included in the ADP2138ACBZ-3.3-R7?
The component includes current overload and thermal shutdown protections.
- What is the typical quiescent current of the ADP2138ACBZ-3.3-R7 in operating mode?
The typical quiescent current is 24 μA.
