Specifications
| Attribute | Value |
| Package | Tube |
| ProductStatus | Obsolete |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.4V |
| Voltage-Input(Max) | 42V |
| Voltage-Output(Min/Fixed) | 0.97V |
| Voltage-Output(Max) | 42V |
| Current-Output | 2.5A |
| Frequency-Switching | 200kHz ~ 2.2MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-TFSOP (0.118, 3.00mm Width) Exposed Pad |
Overview
Description
The LT8610IMSE is a high-efficiency, monolithic step-down switching regulator designed by Analog Devices, Inc. (formerly Linear Technology). It is capable of delivering up to 3.5A of continuous output current from a wide input voltage range of 3.4V to 42V, making it suitable for applications such as automotive, industrial, and telecom systems. The device operates with a high switching frequency of up to 2.2MHz, which allows the use of small external components and enables fast transient response.
The LT8610IMSE features a low quiescent current design, minimizing power loss in low-load conditions, and comes with a Burst Mode operation to enhance efficiency at light loads. Other key features include a low dropout, a precise enable input for power sequencing, internal compensation, soft-start to prevent inrush currents, and a power-good flag for system monitoring. The regulator also includes robust protection features like short-circuit protection, thermal shutdown, and cycle-by-cycle current limiting. Packaged in a compact MSOP-16E, the LT8610IMSE is well-suited for space-constrained applications.
The LT8610IMSE features a low quiescent current design, minimizing power loss in low-load conditions, and comes with a Burst Mode operation to enhance efficiency at light loads. Other key features include a low dropout, a precise enable input for power sequencing, internal compensation, soft-start to prevent inrush currents, and a power-good flag for system monitoring. The regulator also includes robust protection features like short-circuit protection, thermal shutdown, and cycle-by-cycle current limiting. Packaged in a compact MSOP-16E, the LT8610IMSE is well-suited for space-constrained applications.
Equivalent
The LT8610IMSE is a 42V, 2.5A synchronous step-down regulator from Analog Devices. Equivalent products include:
1. Texas Instruments LM43602 - 36V, 2A synchronous step-down converter.
2. Microchip Technology MCP16331 - 36V, 1A step-down regulator.
3. Diodes Incorporated AP61300 - 30V, 3A synchronous buck converter.
4. Maxim Integrated MAX15062 - 60V, 300mA step-down converter.
5. Richtek RT2855 - 40V, 2A synchronous step-down DC-DC converter.
These alternatives vary slightly in specifications but serve similar applications.
1. Texas Instruments LM43602 - 36V, 2A synchronous step-down converter.
2. Microchip Technology MCP16331 - 36V, 1A step-down regulator.
3. Diodes Incorporated AP61300 - 30V, 3A synchronous buck converter.
4. Maxim Integrated MAX15062 - 60V, 300mA step-down converter.
5. Richtek RT2855 - 40V, 2A synchronous step-down DC-DC converter.
These alternatives vary slightly in specifications but serve similar applications.
Features
The LT8610IMSE is a high-efficiency, monolithic step-down regulator. Key features include:
1. Input Voltage Range: It operates with input voltages from 3.4V to 42V, making it suitable for automotive and industrial applications.
2. Output Current: Delivers up to 2.5A of continuous output current.
3. Efficiency: High efficiency of up to 96%, achieved through synchronous rectification and a low quiescent current of 2.5µA in Burst Mode operation.
4. Switching Frequency: Adjustable frequency from 200kHz to 2.2MHz with the capability of synchronization to an external clock.
5. Low Noise: Offers low ripple Burst Mode operation and a spread spectrum frequency modulation option for noise-sensitive applications.
6. Soft-Start: Programmable soft-start to control the output voltage ramp.
7. Protection Features: Includes thermal shutdown, short-circuit protection, and overvoltage protection.
8. Package: Available in a thermally enhanced MSOP-16 package, which aids in heat dissipation.
These features make the LT8610IMSE a versatile and robust choice for power supply designs requiring high efficiency and low noise in compact spaces.
1. Input Voltage Range: It operates with input voltages from 3.4V to 42V, making it suitable for automotive and industrial applications.
2. Output Current: Delivers up to 2.5A of continuous output current.
3. Efficiency: High efficiency of up to 96%, achieved through synchronous rectification and a low quiescent current of 2.5µA in Burst Mode operation.
4. Switching Frequency: Adjustable frequency from 200kHz to 2.2MHz with the capability of synchronization to an external clock.
5. Low Noise: Offers low ripple Burst Mode operation and a spread spectrum frequency modulation option for noise-sensitive applications.
6. Soft-Start: Programmable soft-start to control the output voltage ramp.
7. Protection Features: Includes thermal shutdown, short-circuit protection, and overvoltage protection.
8. Package: Available in a thermally enhanced MSOP-16 package, which aids in heat dissipation.
These features make the LT8610IMSE a versatile and robust choice for power supply designs requiring high efficiency and low noise in compact spaces.
Pinout
The LT8610IMSE is a high-efficiency, monolithic, step-down switching regulator from Analog Devices. It comes in a 10-lead thermally enhanced MSOP package. Here is a brief overview of its pin count and function:
1. VIN (Pin 1): Input voltage supply, ranging from 3.4V to 42V.
2. BST (Pin 2): Bootstrapped input; used for high-side gate drive boost.
3. SW (Pin 3): Switch node connection for inductor.
4. GND (Pin 4): Ground.
5. BIAS (Pin 5): Optional input for lower voltage bias to improve efficiency.
6. TR/SS (Pin 6): Tracks the voltage or soft start control.
7. RT (Pin 7): Timing resistor to program switching frequency.
8. SYNC/MODE (Pin 8): Synchronization input or mode selection.
9. PG (Pin 9): Power good indicator.
10. FB (Pin 10): Feedback input to set output voltage through a resistor divider.
The LT8610IMSE functions as a step-down regulator, capable of delivering up to 2.5A of continuous output current with high efficiency and low EMI. It is suitable for a wide range of applications, including automotive and industrial power systems.
1. VIN (Pin 1): Input voltage supply, ranging from 3.4V to 42V.
2. BST (Pin 2): Bootstrapped input; used for high-side gate drive boost.
3. SW (Pin 3): Switch node connection for inductor.
4. GND (Pin 4): Ground.
5. BIAS (Pin 5): Optional input for lower voltage bias to improve efficiency.
6. TR/SS (Pin 6): Tracks the voltage or soft start control.
7. RT (Pin 7): Timing resistor to program switching frequency.
8. SYNC/MODE (Pin 8): Synchronization input or mode selection.
9. PG (Pin 9): Power good indicator.
10. FB (Pin 10): Feedback input to set output voltage through a resistor divider.
The LT8610IMSE functions as a step-down regulator, capable of delivering up to 2.5A of continuous output current with high efficiency and low EMI. It is suitable for a wide range of applications, including automotive and industrial power systems.
Manufacturer
The LT8610IMSE is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and production of a wide range of integrated circuits (ICs), including analog, mixed-signal, and digital signal processing (DSP) technologies. The company serves various industries, providing solutions for applications in areas such as communications, automotive, industrial, healthcare, and consumer electronics. Known for their high-performance and reliable products, Analog Devices is a leading player in the semiconductor industry.
Application
The LT8610IMSE is a step-down regulator designed for high-efficiency power conversion. Its application areas include:
1. Automotive Electronics: Ideal for powering infotainment systems, dashboard electronics, and LED lighting due to its high efficiency and compact size.
2. Industrial Power Supplies: Suitable for factory automation and control systems, providing reliable power conversion.
3. Telecommunications: Used in networking equipment and base stations for efficient voltage regulation.
4. Consumer Electronics: Powers devices such as set-top boxes, digital cameras, and portable electronics.
5. Medical Devices: Supports low-noise, high-efficiency power in medical imaging and diagnostic equipment.
Overall, the LT8610IMSE is favored in applications requiring high efficiency, compact size, and reliable operation.
1. Automotive Electronics: Ideal for powering infotainment systems, dashboard electronics, and LED lighting due to its high efficiency and compact size.
2. Industrial Power Supplies: Suitable for factory automation and control systems, providing reliable power conversion.
3. Telecommunications: Used in networking equipment and base stations for efficient voltage regulation.
4. Consumer Electronics: Powers devices such as set-top boxes, digital cameras, and portable electronics.
5. Medical Devices: Supports low-noise, high-efficiency power in medical imaging and diagnostic equipment.
Overall, the LT8610IMSE is favored in applications requiring high efficiency, compact size, and reliable operation.
Package
The LT8610IMSE is a step-down switching regulator IC from Analog Devices, housed in a 10-lead MSOP (Mini Small Outline Package) with exposed pad for improved thermal performance.
