Allicdata Part #: | ISL91117IIAZ-T-ND |
Manufacturer Part#: |
ISL91117IIAZ-T |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Intersil |
Short Description: | IC REG BST ADJ 3.7A SYNC 20WCSP |
More Detail: | Boost Switching Regulator IC Positive Adjustable 0... |
DataSheet: | ISL91117IIAZ-T Datasheet/PDF |
Quantity: | 1000 |
Voltage - Output (Min/Fixed): | 0.8V |
Base Part Number: | ISL91117 |
Supplier Device Package: | 20-WLCSP |
Package / Case: | 20-UFBGA, WLCSP |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 85°C (TA) |
Synchronous Rectifier: | Yes |
Frequency - Switching: | 2.6MHz |
Current - Output: | 3.7A (Switch) |
Voltage - Output (Max): | 6.5V (Switch) |
Series: | -- |
Voltage - Input (Max): | 4.8V |
Voltage - Input (Min): | 1.8V |
Number of Outputs: | 1 |
Output Type: | Adjustable |
Topology: | Boost |
Output Configuration: | Positive |
Function: | Step-Up |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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ISL91117IIAZ-T Application Field and Working Principle
The ISL91117IIAZ-T is a DC to DC step-down switching regulator designed to provide a regulated output voltage from a wide input voltage range. It is designed to operate with input voltages from 2.5 V to 17 V and can be powered from single-cell Li-Ion or multi-cell alkaline, NiCd, NiMH, or Li-Ion batteries. It includes a wide range of features such as adjustable soft-start, adjustable switching frequency, overvoltage protection, internal current limit, over-temperature protection, undervoltage lockout and a power good indicator. This device has been designed for easy implementation and very low external component count. It is a highly efficient, low quiescent current, single/multi-cell battery powered mobile application.
Input Power
The ISL91117IIAZ-T is designed to accept input voltages from 2.5V to 17V and is capable of operating from single-cell Li-Ion or multi-cell alkaline, NiCd, NiMH, or Li-Ion batteries. It is designed to operate over a wide range of input voltages in order to ensure reliable operation in battery powered applications. The device is designed to provide high efficiency at all loads; up to 96% efficiency is possible at light loads with a 3.3V/1A output voltage.
Output Voltage
The ISL91117IIAZ-T is capable of providing an adjustable output voltage from 0.9V to 5V. The output voltage can be set through the use of external resistors, or it can be kept constant by using an external reference voltage. The device is capable of supplying up to 1A of continuous output current and can deliver up to 2A of peak load current.
Switching Frequency
The ISL91117IIAZ-T is capable of operating over a wide range of switching frequencies from 100 kHz to 1.4 MHz. The switching frequency can be adjusted through the use of an external resistor to achieve optimal efficiency and performance. The device also includes an adjustable soft-start feature which can be used to reduce inrush current and minimize output voltage ripple.
Features and Benefits
The ISL91117IIAZ-T is a highly efficient step-down switching regulator that offers a wide range of features and benefits. It includes a low dropout voltage for optimum performance, an adjustable soft-start feature to reduce inrush current and minimize output voltage ripple, and an adjustable switching frequency for optimal efficiency. The device also includes overvoltage protection, internal current limit, over-temperature protection, undervoltage lockout and a power good indicator. It is designed for easy implementation and very low external component count, making it an ideal solution for battery powered applications.
Conclusion
The ISL91117IIAZ-T is a high efficiency, low quiescent current, single/multi-cell battery powered mobile application DC to DC step-down switching regulator. It provides an adjustable output voltage from 0.9V to 5V and is capable of supplying up to 1A of continuous output current. The device includes a wide range of features such as adjustable soft-start, adjustable switching frequency, overvoltage protection, internal current limit, over-temperature protection, undervoltage lockout and a power good indicator. It is designed for easy implementation and very low external component count, making it an ideal solution for battery powered applications.
The specific data is subject to PDF, and the above content is for reference
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