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LTC3539EDCB
+NomenclatureIC REG BOOST ADJUSTABLE 2A 8DFN
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #LTC3539EDCB
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Package DFN-8
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En stock3030
365 Garantie qualité 24h/24
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Spécifications
| Attribut | Valeur |
| Package / Case | Tube |
| Part Status | Obsolete |
| Function | Step-Up |
| Output Configuration | Positive |
| Topology | Boost |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 0.5V |
| Voltage - Input (Max) | 5V |
| Voltage - Output (Min/Fixed) | 1.5V |
| Voltage - Output (Max) | 5.25V |
| Current - Output | 2A (Switch) |
| Frequency - Switching | 1MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Présentation
Description
Key features of the LTC3539EDCB include a seamless transition between buck and boost modes, ensuring consistent performance across the entire input voltage range. It also incorporates a 2.2MHz fixed frequency operation, which allows the use of small external components and a compact solution footprint. The converter offers low quiescent current to maximize battery life and includes protection features such as over-temperature and over-current protection. The LTC3539EDCB is typically available in a compact 3mm × 2mm DFN package, making it suitable for space-constrained applications.
Equivalent
1. TPS63001 by Texas Instruments - a high-efficiency buck-boost converter.
2. MAX17020 by Maxim Integrated (now part of Analog Devices) - a buck-boost controller.
3. ISL9110 by Renesas Electronics - a high-efficiency buck-boost converter.
Always check the datasheets to ensure compatibility with your specific application requirements.
Features
1. Wide Input Voltage Range: It operates from 2.4V to 5.5V, making it suitable for single-cell Li-ion batteries and multiple alkaline/NiMH cells.
2. Output Voltage Flexibility: It can provide a regulated output voltage from as low as 2.4V to 5.25V.
3. Automatic Buck-Boost Operation: The device transitions seamlessly between buck and boost modes, ensuring a stable output even when the input voltage is above, below, or equal to the output voltage.
4. Efficiency: High efficiency of up to 95% to maximize battery life in portable applications.
5. Programmable Switching Frequency: Allows for optimization between efficiency and component size, typically up to 2MHz.
6. Low Quiescent Current: Features low standby current for extended battery life in low-power applications.
7. Compact Package: Offered in a compact 12-lead DFN package, suitable for space-constrained applications.
These features make the LTC3539EDCB ideal for portable electronics, battery-powered devices, and other applications requiring efficient power regulation over a broad range of input and output conditions.
Pinout
The pin count for the LTC3539EDCB is 10 pins, which are used for the following functions:
1. VIN - Input voltage supply.
2. VOUT - Output voltage.
3. SW (2 pins) - Switch node.
4. GND (2 pins) - Ground connection.
5. FB - Feedback input used to regulate the output voltage.
6. SHDN - Shutdown control; when low, the device enters shutdown mode.
7. COMP - Compensation pin for the control loop.
8. RT - Resistor connected to set the switching frequency.
This layout and design allow the LTC3539EDCB to maintain high efficiency across a range of loads and input voltages, suitable for battery-powered applications requiring a higher voltage output while maintaining compact form factor.