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LT3845AEFE#TRPBF
+BOMIC REG CTRLR BUCK 16TSSOP
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Nhà sản xuấtCông ty Analog Devices Inc.
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Ông. Phần #LT3845AEFE#TRPBF
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Bảng dữ liệu LT3845AEFE#TRPBF DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 4V ~ 60V |
| Frequency - Switching | 300kHz |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Enable, Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | 16-TSSOP-EP |
| Base Product Number | LT3845 |
Tổng quan
Description
The LT3845AEFE#TRPBF is a high-performance, synchronous step-down (buck) DC-DC converter designed by Analog Devices. It features an adjustable output voltage range, making it suitable for various applications requiring efficient voltage regulation. This device operates over a wide input voltage range, typically from 4.5V to 60V, and supports high output current capabilities, which is ideal for powering demanding electronic systems.
Key features include a low quiescent current, high efficiency, and a built-in soft-start function that helps prevent inrush current during startup. The LT3845AEFE#TRPBF is also equipped with protection mechanisms such as over-current and thermal shutdown to enhance reliability.
The converter operates with a switching frequency that can be set externally, allowing designers to optimize for size or efficiency. Its compact 28-lead TSSOP package facilitates easy integration into space-constrained designs. Overall, the LT3845AEFE#TRPBF is a versatile choice for applications in automotive, industrial, and consumer electronics where efficient power management is critical.
Key features include a low quiescent current, high efficiency, and a built-in soft-start function that helps prevent inrush current during startup. The LT3845AEFE#TRPBF is also equipped with protection mechanisms such as over-current and thermal shutdown to enhance reliability.
The converter operates with a switching frequency that can be set externally, allowing designers to optimize for size or efficiency. Its compact 28-lead TSSOP package facilitates easy integration into space-constrained designs. Overall, the LT3845AEFE#TRPBF is a versatile choice for applications in automotive, industrial, and consumer electronics where efficient power management is critical.
Equivalent
The LT3845AEFE#TRPBF is a high-performance DC-DC controller. Equivalent products include the LM5118 from Texas Instruments, the MIC3845 from Microchip, and the MAX5910 from Maxim Integrated. These alternatives may vary in features, specifications, and voltage ratings, so it's essential to verify compatibility for your specific application. Always consult the datasheets for detailed comparisons.
Features
The LT3845AEFE#TRPBF is a high-performance DC-DC controller designed for step-down (buck) applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 60V, accommodating various power sources.
2. Adjustable Output Voltage: Provides a flexible output voltage adjustable from 0.8V to 60V.
3. High Efficiency: Offers efficient power conversion, reducing heat generation and energy loss.
4. Current Mode Control: Ensures stability and fast transient response, improving performance in dynamic loads.
5. Integrated Gate Drivers: Simplifies the design by including high-side and low-side gate drivers for external MOSFETs.
6. Programmable Frequency: Allows for operation at a fixed frequency of up to 1MHz, optimizing size and performance.
7. Soft-Start Feature: Reduces inrush current during startup, protecting components and enhancing reliability.
8. Protection Features: Includes overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown for increased reliability.
These features make it suitable for automotive, industrial, and telecom applications where robust performance is required.
1. Wide Input Voltage Range: Operates from 4.5V to 60V, accommodating various power sources.
2. Adjustable Output Voltage: Provides a flexible output voltage adjustable from 0.8V to 60V.
3. High Efficiency: Offers efficient power conversion, reducing heat generation and energy loss.
4. Current Mode Control: Ensures stability and fast transient response, improving performance in dynamic loads.
5. Integrated Gate Drivers: Simplifies the design by including high-side and low-side gate drivers for external MOSFETs.
6. Programmable Frequency: Allows for operation at a fixed frequency of up to 1MHz, optimizing size and performance.
7. Soft-Start Feature: Reduces inrush current during startup, protecting components and enhancing reliability.
8. Protection Features: Includes overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown for increased reliability.
These features make it suitable for automotive, industrial, and telecom applications where robust performance is required.
Pinout
The LT3845AEFE#TRPBF is a high-performance step-down voltage regulator designed for high input voltage applications. It has a total of 16 pins.
Here’s a brief overview of the pin functions:
1. VIN: Input supply voltage.
2. SW: Switch node for the power stage.
3. GND: Ground reference.
4. VOUT: Regulated output voltage.
5. COMP: Compensation node for stability.
6. SS: Soft-start pin for controlling startup time.
7. RT: Timing resistor pin to set switching frequency.
8. FB: Feedback pin for regulation.
9. ILIM: Current limit setting.
10. LIM: Overcurrent protection.
11. SYNC: Synchronization input.
12. PGND: Power ground connection.
13. CSN/ CSP: Current sense pins for current feedback.
14. RAMP: Ramp signal for modulation.
15. ISEN: Current sense input.
16. AGND: Analog ground for improved noise performance.
This device is suitable for applications requiring high efficiency and precise voltage regulation.
Here’s a brief overview of the pin functions:
1. VIN: Input supply voltage.
2. SW: Switch node for the power stage.
3. GND: Ground reference.
4. VOUT: Regulated output voltage.
5. COMP: Compensation node for stability.
6. SS: Soft-start pin for controlling startup time.
7. RT: Timing resistor pin to set switching frequency.
8. FB: Feedback pin for regulation.
9. ILIM: Current limit setting.
10. LIM: Overcurrent protection.
11. SYNC: Synchronization input.
12. PGND: Power ground connection.
13. CSN/ CSP: Current sense pins for current feedback.
14. RAMP: Ramp signal for modulation.
15. ISEN: Current sense input.
16. AGND: Analog ground for improved noise performance.
This device is suitable for applications requiring high efficiency and precise voltage regulation.
Manufacturer
The LT3845AEFE#TRPBF is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a multinational corporation that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits (ICs). Founded in 1965 and headquartered in Norwood, Massachusetts, ADI is known for its high-performance semiconductor solutions used in a variety of applications, including communications, automotive, industrial, healthcare, and consumer electronics. The company focuses on providing innovative technology that addresses complex signal processing challenges, and it is recognized as a leader in the field of high-precision analog components.
Application
The LT3845AEFE#TRPBF is a high-performance switching regulator controller primarily used in power supply applications. Key application areas include:
1. DC-DC Converters: For step-down (buck) and step-up (boost) conversion.
2. Battery Management: In battery chargers and power management systems.
3. Industrial Automation: For powering sensors, actuators, and control systems.
4. Telecommunications: In powering communication devices and infrastructure.
5. Consumer Electronics: For powering a variety of electronic devices.
6. Automotive Systems: In powering automotive electronics and control modules.
Its versatility suits a range of applications requiring high efficiency and performance.
1. DC-DC Converters: For step-down (buck) and step-up (boost) conversion.
2. Battery Management: In battery chargers and power management systems.
3. Industrial Automation: For powering sensors, actuators, and control systems.
4. Telecommunications: In powering communication devices and infrastructure.
5. Consumer Electronics: For powering a variety of electronic devices.
6. Automotive Systems: In powering automotive electronics and control modules.
Its versatility suits a range of applications requiring high efficiency and performance.
Package
The LT3845AEFE#TRPBF is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package) format.
