Overview
The ADP5302ACPZ-1-R7 is a high-efficiency, ultralow quiescent current step-down regulator produced by Analog Devices Inc. This component is part of the ADP5302 series and is designed to provide efficient power management in a variety of applications. It operates from an input voltage range of 2.15 V to 6.50 V, making it suitable for use with multiple alkaline or NiMH cells, Li-Ion cells, or other power sources. The regulator is known for its low power consumption and flexible configuration capabilities, making it ideal for applications requiring both long battery life and low system noise.
Key Specifications
| Specification | Value |
|---|---|
| Input Supply Voltage Range | 2.15 V to 6.50 V |
| Quiescent Current (No Load) | 240 nA |
| Output Voltage Range | 0.8 V to 5.0 V (selectable via external VID resistor and factory fuse) |
| Output Current (Hysteresis Mode) | Up to 50 mA |
| Output Current (PWM Mode) | Up to 500 mA |
| Output Accuracy | ±1.5% over full temperature range in PWM mode |
| Switching Frequency (PWM Mode) | 2 MHz (with optional synchronization from 1.5 MHz to 2.5 MHz) |
| Package Type | 10-lead, 3 mm × 3 mm LFCSP with exposed pad |
| Junction Temperature Range | −40°C to +125°C |
| UnderVoltage Lockout (UVLO) Thresholds | Rising: 2.06 V to 2.14 V, Falling: 1.90 V to 2.00 V |
Key Features
- Ultralow quiescent current of 240 nA with no load, ensuring long battery life.
- Selectable output voltages from 0.8 V to 5.0 V via an external VID resistor and factory fuse.
- Operates in both hysteresis mode and PWM mode, with the ability to switch between modes via the SYNC/MODE pin.
- High efficiency with up to 100% duty cycle operation mode.
- Ultrafast stop switching control and quick output discharge (QOD) option.
- VINOK flag to monitor input battery voltage.
- Safety features including overcurrent protection (OCP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).
Applications
The ADP5302ACPZ-1-R7 is suitable for a wide range of applications that require efficient power management, low quiescent current, and flexible output voltage settings. These include:
- Battery-powered devices such as handheld electronics and portable medical devices.
- Wireless sensors and IoT devices where low power consumption is critical.
- RF and analog circuits that require a quiet system environment to minimize noise.
- Data conversion and transmission systems where high efficiency and low ripple are essential.
Q & A
- What is the input voltage range of the ADP5302ACPZ-1-R7?
The input voltage range is from 2.15 V to 6.50 V.
- What are the output voltage options for this regulator?
The output voltage is selectable from 0.8 V to 5.0 V via an external VID resistor and factory fuse.
- What are the quiescent current and output current capabilities of the ADP5302ACPZ-1-R7?
The quiescent current is 240 nA with no load, and the output current can be up to 50 mA in hysteresis mode and up to 500 mA in PWM mode.
- Can the ADP5302ACPZ-1-R7 operate in different modes?
Yes, it can operate in both hysteresis mode and PWM mode, with the ability to switch between modes via the SYNC/MODE pin).
- What safety features does the ADP5302ACPZ-1-R7 include?
The regulator includes overcurrent protection (OCP), thermal shutdown (TSD), and input undervoltage lockout (UVLO)).
- What is the switching frequency of the ADP5302ACPZ-1-R7 in PWM mode?
The switching frequency is 2 MHz, with optional synchronization from 1.5 MHz to 2.5 MHz).
- What is the package type and junction temperature range of the ADP5302ACPZ-1-R7?
The package type is a 10-lead, 3 mm × 3 mm LFCSP with an exposed pad, and the junction temperature range is −40°C to +125°C).
- How does the ADP5302ACPZ-1-R7 monitor input battery voltage?
The regulator integrates an ultralow power comparator with a factory programmable voltage reference to monitor the input battery voltage via the VINOK flag).
- What are some typical applications for the ADP5302ACPZ-1-R7?
Typical applications include battery-powered devices, wireless sensors, IoT devices, RF and analog circuits, and data conversion and transmission systems).
- Does the ADP5302ACPZ-1-R7 support quick output discharge?
Yes, it includes a quick output discharge (QOD) option).
