Overview
The ADP2370ACPZ-R2, produced by Analog Devices Inc., is a high-efficiency, low quiescent current buck (step-down) DC-to-DC converter. This device is designed to provide a compact and efficient power management solution, particularly suited for portable and battery-powered applications. It is available in a small 8-lead, 3 mm x 3 mm LFCSP (QFN) package, making it ideal for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 3.2 V to 15 V |
| Output Current | 800 mA |
| Quiescent Current in Power Saving Mode (PSM) | < 14 µA |
| Efficiency | >90% |
| Switching Frequency | 600 kHz / 1.2 MHz |
| Fixed Output Voltages | 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 5 V, and adjustable option |
| Initial Accuracy | ±1% |
| Shutdown Current | < 1.2 µA |
| Package Type | 8-lead, 0.75 mm x 3 mm x 3 mm LFCSP (QFN) |
Key Features
- High efficiency with >90% efficiency
- Low quiescent current of < 14 µA in power saving mode (PSM)
- Force PWM mode (FPWM) for noise considerations
- Power-good output to indicate when the output voltage is below 92% of its nominal value
- Quick output discharge (QOD) function in ADP2371 model
- Internal power switch and synchronous rectifier for minimal external part count
- Internal soft start and internal compensation for ease of use
- Undervoltage lockout to prevent deep battery discharge
- Soft start to prevent input overcurrent at startup
- Short-circuit protection and thermal overload protection circuits
Applications
- Portable and battery-powered equipment
- Automatic meter readers (WSN)
- Point of sales and transaction processing instruments
- Medical instruments
- Medium format display tablets and pads
Q & A
- What is the input voltage range of the ADP2370?
The input voltage range of the ADP2370 is 3.2 V to 15 V.
- What is the maximum output current of the ADP2370?
The maximum output current of the ADP2370 is 800 mA.
- What are the available fixed output voltages for the ADP2370?
The ADP2370 offers fixed output voltages of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 5 V, and an adjustable option.
- What is the quiescent current in power saving mode (PSM) for the ADP2370?
The quiescent current in PSM for the ADP2370 is less than 14 µA.
- Does the ADP2370 have a power-good output feature?
- What is the quick output discharge (QOD) function in the ADP2371 model?
The QOD function in the ADP2371 model automatically discharges the output when the device is disabled.
- What kind of protection circuits does the ADP2370 have?
The ADP2370 includes short-circuit protection and thermal overload protection circuits.
- What is the package type of the ADP2370?
The ADP2370 is available in an 8-lead, 0.75 mm x 3 mm x 3 mm LFCSP (QFN) package.
- What are some typical applications of the ADP2370?
Typical applications include portable and battery-powered equipment, automatic meter readers, point of sales and transaction processing instruments, medical instruments, and medium format display tablets and pads.
- Can the ADP2370 be synchronized to an external clock?
