Allicdata Part #: | AOZ1237QI-03-ND |
Manufacturer Part#: |
AOZ1237QI-03 |
Price: | $ 0.35 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Alpha & Omega Semiconductor Inc. |
Short Description: | IC REG BUCK SYNC ADJ 8A QFN |
More Detail: | Buck Switching Regulator IC Positive Adjustable 0.... |
DataSheet: | AOZ1237QI-03 Datasheet/PDF |
Quantity: | 1000 |
3000 +: | $ 0.31840 |
Specifications
Series: | EZBuck™ |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Function: | Step-Down |
Output Configuration: | Positive |
Topology: | Buck |
Output Type: | Adjustable |
Number of Outputs: | 1 |
Voltage - Input (Min): | 2.7V |
Voltage - Input (Max): | 24V |
Voltage - Output (Min/Fixed): | 0.8V |
Voltage - Output (Max): | 20.4V |
Current - Output: | 8A |
Frequency - Switching: | 100kHz ~ 1MHz |
Synchronous Rectifier: | Yes |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 23-VFQFN Exposed Pad |
Supplier Device Package: | 23-QFN (4x4) |
Description
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AOZ1237QI-03 application field and working principle
Introduction
AOZ1237QI-03 is a synchronous step-down DC-DC switching regulator, which is designed for space-constrained applications. It is integrated with a maximum continuous output current of 3A, over-current protection (OCP) and over-voltage protection (OVP). This device is also equipped with various features, such as precision enable control, output discharge, soft-start, short-circuit protection (SCP), overload protection (OLP) and adjustable soft-stop, making it suitable for many applications.PMIC - Voltage Regulators - DC DC Switching Regulators
Application Fields
AOZ1237QI-03 DC-DC switching regulator is suitable for one-cell Li-Ion battery or multi-cell Ni-MH, Ni-Cd battery applications where reduced voltage and power output are required. It is usually used for the power conversion in consumer electronics, mobile phone chargers, digital cameras, audio equipment, and industrial ultrasound imaging equipment.Working Principle
The AOZ1237QI-03 DC-DC switching regulator operates in a synchronous step-down mode, which helps to minimize the output ripple and reduce the EMI. It contains an on-chip driver capable of operating up to 600KHz frequency, which allows it to achieve high efficiency and fast transient response. The output voltage can be adjusted within the range of 0.6~3.3V with an external resistor.The AOZ1237QI-03 switch regulator contains two separate high-side and low-side FETs, and two prime loop control circuits. The PWM signal is generated by the internal oscillator which is coupled with the output voltage signal and high-side FET signal and will be processed by the PWM comparator. During normal switching action, the high-side and low-side FETs will be switched on or off in a complementary way such that the output voltage is maintained.The AOZ1237QI-03 device also contains an over-voltage protection (OVP) function and an over-current protection (OCP) function. The OVP function protects the output voltage from overshoot or undershoot during load transients or if the output voltage is too high. The OCP function limits the output current if it exceeds the maximum threshold value, protecting the output device from possible damage.Conclusion
In conclusion, the AOZ1237QI-03 DC-DC switching regulator is a high-performance and efficient device with many useful features like adjustable output voltage, OVP, OCP, SCP, and OLP protection functions. It is suitable for portable handheld and battery-powered applications, and can be used in many different applications where power conversion, precision enable control, and fast transient response are required.The specific data is subject to PDF, and the above content is for reference
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