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LT3431IFE
+BOM-
ManufacturerAnalog Devices
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Mfr. Part #LT3431IFE
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In Stock3427
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Specifications
| Attribute | Value |
| Package / Case | TSSOP-16 |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 125 C |
| Series | LT3431 |
| Brand | Analog Devices |
| Product Type | Switching Voltage Regulators |
| Subcategory | PMIC - Power Management ICs |
| Mounting Style | SMD/SMT |
| Shipping Restrictions | Mouser does not presently sell this product in your region. |
| Operating Supply Current | 2.5 mA |
| Topology | Buck |
| Output Voltage | Adjustable |
| Output Current | 2.75 A |
| Number of Outputs | 1 Output |
| Input Voltage - Min | 5.5 V |
| Input Voltage - Max | 60 V |
| Switching Frequency | 500 kHz |
| Height | 1.1 mm |
Overview
Description
Key features include a small footprint, built-in power switches, and a low quiescent current, which is advantageous for battery-powered applications. The LT3431IFE also offers adjustable output voltage and numerous protection features, such as overcurrent protection, thermal shutdown, and undervoltage lockout, ensuring reliable operation.
Additionally, it supports various operating modes, including pulse frequency modulation and burst mode, to optimize efficiency under varying load conditions. Overall, the LT3431IFE is a robust solution for designers seeking a compact, efficient, and versatile DC-DC converter for their power management needs.
Equivalent
Features
1. Wide Input Voltage Range: Accepts input voltages from 3.6V to 60V, making it suitable for a variety of power sources.
2. High Efficiency: Delivers efficiencies up to 95%, reducing heat generation and improving overall performance.
3. Output Current Capability: Supports output currents up to 2A.
4. Adjustable Output Voltage: Features an adjustable output voltage range from 0.8V to 15V.
5. Simple Compensated Control Loop: Ensures stable operation across a wide range of loads and input voltages.
6. Overvoltage and Overcurrent Protection: Enhances reliability and protects against fault conditions.
7. Small Package Size: Available in a compact 20-lead HTSSOP package, facilitating space-constrained designs.
8. Low Quiescent Current: Minimizes power consumption in low-load scenarios.
These features make the LT3431IFE ideal for industrial, automotive, and consumer electronic applications.
Pinout
The primary functions of its pins include:
1. VIN (Power Input): Supplies power to the IC.
2. SW (Switch Node): Connects to the internal switching MOSFETs.
3. GND (Ground): Common ground reference.
4. VOUT (Output Voltage): Provides the regulated output voltage.
5. COMP (Compensation): For frequency compensation.
6. FB (Feedback): Connects to the output voltage divider for regulation.
7. SS (Soft Start): Controls the soft start function to limit inrush current.
8. SYNC (Synchronization): Allows synchronization to an external clock.
9. ILIM (Current Limit): Sets the current limit threshold.
10. PG (Power Good): Indicates the output is within regulation.
Other pins include those for enabling/disabling the device, switching frequency adjustment, and other control functions. The LT3431IFE is suitable for a variety of applications requiring efficient voltage regulation.