| Allicdata Part #: | BD8317GWL-E2TR-ND |
| Manufacturer Part#: |
BD8317GWL-E2 |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | ROHM Semiconductor |
| Short Description: | IC REG BOOST ADJ A1 SYNC 50WLCSP |
| More Detail: | Boost Switching Regulator IC Positive and Negative... |
| DataSheet: |  BD8317GWL-E2 Datasheet/PDF |
| Quantity: | 1000 |
Specifications
| Voltage - Input (Max): | 5.5V |
| Supplier Device Package: | UCSP50L1 |
| Package / Case: | 11-UFBGA, WLCSP |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -35°C ~ 85°C (TA) |
| Synchronous Rectifier: | Yes |
| Frequency - Switching: | 800kHz |
| Current - Output: | 1A (Switch) |
| Voltage - Output (Max): | 18V, -9V |
| Voltage - Output (Min/Fixed): | 5.5V, -1V |
| Series: | -- |
| Voltage - Input (Min): | 2.5V |
| Number of Outputs: | 2 |
| Output Type: | Adjustable |
| Topology: | Boost |
| Output Configuration: | Positive and Negative (Dual Rail) |
| Function: | Step-Up |
| Part Status: | Active |
| Packaging: | Tape & Reel (TR) |
Description
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BD8317GWL-E2 application field and working principle
BD8317GWL-E2 is a synchronous voltage regulator chip, which belongs to DC DC switching regulators. It is specially designed for low voltage applications. The product can convert the input voltage in the range of 3.5V-27V to the output voltage 1.2V-22V, and the output current can be up to 8A. The switching frequency of the chip is 300KHz. BD8317GWL-E2 can be used in various fields, such as LED lighting, digital audio players, mobile phones, power tool batteries, notebook computers, motor boost and other fields.
BD8317GWL-E2 Working principle: First, the power voltage is rectified and filtered by the filter resistor and capacitor, and then the voltage is input to the chip, and then the chip senses the input voltage and the output voltage. The output voltage is controlled, and the stability is maintained by the regulation loop. The switching action between the input voltage and the output voltage is controlled by the controlling circuit for MOS, and the signal controlling is integrated in the chip. The output of the chip is made up of the signal and PWM signal, so it can control the power on and off. The voltage of the output voltage is adjusted according to the setting of the load, so that the output voltage is maintained in a stable state. When the load changes, the regulating loop will also adjust accordingly and maintain the output voltage in a stable state. In this way, the BD8317GWL-E2 DC DC switching regulator can achieve the purpose of stable output voltage.
The use of BD8317GWL-E2 as a DC DC switching regulator is mainly in the field of portable electronic products. The chip is used in the conversion of voltage from 3.5V-27V to 1.2V-22V and the output current can reach 8A or above.
The BD8317GWL-E2 adopts quasi-resonant control technology and analogue control technology, which make the switching power supply of the chip have powerful input/output isolation performance and internal EMI filter, so as to fulfill the requirements of portable product power supply.
The BD8317GWL-E2 DC DC switching regulator chip has the advantages of stable performance, high efficiency, low ripple noise, low standby power consumption, wide input/output voltage range, high conversion efficiency and high MTBF.
The BD8317GWL-E2 DC DC switching regulator chip has a variety of protection functions, such as input undervoltage protection, output overvoltage protection, over temperature protection and so on. Its operating environment temperature is -40℃ to +105℃. In terms of its package installation, it adopts QFN4X4 packaging, so it is compact and easy to install in various application scenarios.
So far, BD8317GWL-E2 DC DC switching regulator chip is widely used and favored by many designers. With its various characteristics of miniaturization, high efficiency, low noise, protection functions and other characteristics, it has become the preferred side road power supply chip.
The specific data is subject to PDF, and the above content is for reference
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