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LTC1625IS
+BOMSwitching Voltage Regulators LTC1625 - No RSENSE Current Mode Synchronous Step-Down Switching Regulator
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ManufacturerAnalog Devices
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Mfr. Part #LTC1625IS
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Datasheet LTC1625IS DataSheet
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In Stock15169
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Specifications
| Attribute | Value |
Overview
Description
Key features include a 4V to 36V input voltage range, adjustable output voltage, and a high-efficiency synchronous rectification capability. It employs a current-mode architecture, which provides excellent line and load regulation, and offers a soft-start feature to prevent inrush current during startup. It also includes built-in protection mechanisms like overcurrent protection, short-circuit protection, and thermal shutdown.
Overall, the LTC1625IS is suitable for applications requiring efficient power conversion, such as distributed power systems, telecom, and industrial systems, where its robust performance and reliability are essential.
Equivalent
Features
1. High Efficiency: It offers high efficiency over a wide load range, which is beneficial for battery-powered devices.
2. Input Voltage Range: The device supports a broad input voltage range, allowing flexibility in design and use with different power sources.
3. Output Voltage: It provides a precise adjustable output voltage, which can be set via an external resistor divider.
4. Current Mode Control: Employs current mode control for fast transient response and ease of loop compensation.
5. MOSFET Drivers: Integrates high-current gate drivers for external N-channel MOSFETs, enhancing efficiency and reducing size.
6. Frequency Synchronization: Allows synchronization to an external clock, facilitating multi-phase operation and reducing electromagnetic interference (EMI).
7. Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability and safety.
8. Compact Package: Offered in a space-efficient package, making it suitable for compact electronic designs.
These features make the LTC1625IS a versatile choice for applications requiring reliable and efficient step-down conversion.
Pinout
1. SGND: Signal Ground. This is the ground reference for the control circuitry.
2. VFB: Voltage Feedback. Connects to the external resistor divider from the output for voltage regulation.
3. ILIM: Current Limit. Sets the current limit threshold for protection.
4. SYNC: Synchronization Input. Allows the device to be synchronized with an external clock.
5. RUN/SS: Run/Soft-Start. Controls the startup and enables soft-start functionality.
6. Ith/Rd: Error Amplifier Compensation and Shutdown. Used for compensation and can also be tied to ground for shutdown.
7. SW: Switch Node. Connects to the output inductor.
8. Vin: Input Supply. Powers the internal circuitry.
These pins enable the LTC1625IS to efficiently convert an input voltage to a lower output voltage with various features like current limiting, soft-start, and the ability to synchronize with an external clock.
Manufacturer
Application
1. Power Supply Solutions: Used in systems needing stable power from higher voltage sources, such as in point-of-load converters for distributed power systems.
2. Telecommunications: Provides efficient power management in telecom equipment.
3. Computer Systems: Utilized in motherboards and peripheral cards for powering processors and chipsets.
4. Industrial Equipment: Supports automation systems and instrumentation by supplying stable voltages.
5. Consumer Electronics: Ensures efficient battery usage in devices like set-top boxes and gaming consoles.
These applications benefit from its high efficiency, wide input voltage range, and low output voltage ripple.