Specifications
| Attribute | Value |
| Package | Tube |
| ProductStatus | Obsolete |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 2.25V |
| Voltage-Input(Max) | 5.5V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 5V |
| Current-Output | 8A |
| Frequency-Switching | 1MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 38-WFQFN Exposed Pad |
Overview
Description
The LTC3418EUHF is a high-efficiency, monolithic synchronous step-down regulator from Analog Devices, designed for applications requiring compact size and high performance. It operates over an input voltage range of 2.25V to 5.5V and can deliver up to 8A of continuous output current. The device is ideal for powering low-voltage, high-current applications such as microprocessors, FPGAs, and ASICs.
The LTC3418EUHF features a constant frequency, current mode architecture that ensures fast transient response and stable operation. It has a selectable switching frequency ranging from 300kHz to 4MHz, allowing for optimization between efficiency and component size. The regulator also boasts high efficiency across its operating range, thanks to its integrated low-RDS(ON) power switches.
Additional features include external synchronization capability, a Power Good output for monitoring output voltage, and short-circuit protection for enhanced reliability. Its compact 16-lead (5mm x 4mm) QFN package makes it suitable for space-constrained designs. Its robust performance and versatility make it a popular choice in a wide range of power management applications.
The LTC3418EUHF features a constant frequency, current mode architecture that ensures fast transient response and stable operation. It has a selectable switching frequency ranging from 300kHz to 4MHz, allowing for optimization between efficiency and component size. The regulator also boasts high efficiency across its operating range, thanks to its integrated low-RDS(ON) power switches.
Additional features include external synchronization capability, a Power Good output for monitoring output voltage, and short-circuit protection for enhanced reliability. Its compact 16-lead (5mm x 4mm) QFN package makes it suitable for space-constrained designs. Its robust performance and versatility make it a popular choice in a wide range of power management applications.
Equivalent
The LTC3418EUHF is a 4A, 4MHz synchronous step-down regulator. Equivalent products include:
1. TPS54620 by Texas Instruments – A 6A, 1.6MHz synchronous buck converter.
2. MAX17504 by Maxim Integrated – A 3.5A, 4.5MHz high-efficiency synchronous buck converter.
3. LMR33630 by Texas Instruments – A 3A, 400kHz synchronous buck converter.
4. MP2315 by Monolithic Power Systems – A 3A, 1.4MHz synchronous step-down converter.
These offer similar functionality with variations in current rating and frequency. Always verify datasheet specifications for compatibility.
1. TPS54620 by Texas Instruments – A 6A, 1.6MHz synchronous buck converter.
2. MAX17504 by Maxim Integrated – A 3.5A, 4.5MHz high-efficiency synchronous buck converter.
3. LMR33630 by Texas Instruments – A 3A, 400kHz synchronous buck converter.
4. MP2315 by Monolithic Power Systems – A 3A, 1.4MHz synchronous step-down converter.
These offer similar functionality with variations in current rating and frequency. Always verify datasheet specifications for compatibility.
Features
The LTC3418EUHF is a high-efficiency, monolithic synchronous step-down regulator specifically designed for portable applications. It features a wide input voltage range from 2.25V to 5.5V, making it suitable for single-cell Li-Ion batteries or fixed 3.3V/5V power sources. The device can deliver up to 8A of continuous output current while maintaining high efficiency, thanks to its integrated synchronous switches.
Key features of the LTC3418EUHF include a programmable switching frequency up to 4MHz, which allows the use of small inductors and capacitors for a compact solution. It also offers a low dropout operation, with 100% duty cycle capability. The device includes an adjustable output voltage from 0.8V to the input voltage, and it supports external clock synchronization to optimize performance in multi-regulator systems.
Additional features include a Power Good output, short-circuit protection, and thermal shutdown. The LTC3418EUHF is housed in a 24-lead 4mm x 4mm QFN package, providing a space-efficient solution for space-constrained designs.
Key features of the LTC3418EUHF include a programmable switching frequency up to 4MHz, which allows the use of small inductors and capacitors for a compact solution. It also offers a low dropout operation, with 100% duty cycle capability. The device includes an adjustable output voltage from 0.8V to the input voltage, and it supports external clock synchronization to optimize performance in multi-regulator systems.
Additional features include a Power Good output, short-circuit protection, and thermal shutdown. The LTC3418EUHF is housed in a 24-lead 4mm x 4mm QFN package, providing a space-efficient solution for space-constrained designs.
Pinout
The LTC3418EUHF is a high-efficiency monolithic synchronous step-down regulator from Analog Devices. It is designed to deliver up to 8A of output current. The device comes in a 32-lead (5mm × 5mm) QFN package.
The pin count is 32. Here are some of the key functions of its pins:
1. VIN: Input supply voltage.
2. SW: Switch node, connected to the inductor.
3. VFB: Feedback voltage for setting output voltage.
4. ITH: Compensation pin for voltage loop stability.
5. RUN: Run control input.
6. SYNC/MODE: Synchronization or mode selection.
7. PGOOD: Power good indicator.
8. GND and PGND: Ground pins for signal and power.
9. VOUT: Output voltage sense.
These pins allow the LTC3418EUHF to efficiently convert a wide range of input voltages to a desired output voltage, making it suitable for various applications in power management.
The pin count is 32. Here are some of the key functions of its pins:
1. VIN: Input supply voltage.
2. SW: Switch node, connected to the inductor.
3. VFB: Feedback voltage for setting output voltage.
4. ITH: Compensation pin for voltage loop stability.
5. RUN: Run control input.
6. SYNC/MODE: Synchronization or mode selection.
7. PGOOD: Power good indicator.
8. GND and PGND: Ground pins for signal and power.
9. VOUT: Output voltage sense.
These pins allow the LTC3418EUHF to efficiently convert a wide range of input voltages to a desired output voltage, making it suitable for various applications in power management.
Manufacturer
The LTC3418EUHF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits used in electronic equipment. The company serves various industries, including automotive, consumer electronics, communications, industrial, healthcare, and defense. Analog Devices is known for its high-performance products and has a reputation for innovation in the semiconductor industry.
Application
The LTC3418EUHF is a high-efficiency, monolithic synchronous step-down DC/DC converter. It is commonly used in various applications, such as:
1. Telecommunications: For powering communication equipment requiring stable voltage.
2. Portable Electronics: Ideal for devices like smartphones and tablets due to its compact size and efficiency.
3. Industrial Systems: Used in automated systems and control equipment for reliable power conversion.
4. Computer Peripherals: Powers components like hard drives and SSDs efficiently.
5. Networking Equipment: Supports routers and switches by providing stable power.
Its wide input voltage range and high switching frequency make it suitable for applications demanding efficiency and small solution size.
1. Telecommunications: For powering communication equipment requiring stable voltage.
2. Portable Electronics: Ideal for devices like smartphones and tablets due to its compact size and efficiency.
3. Industrial Systems: Used in automated systems and control equipment for reliable power conversion.
4. Computer Peripherals: Powers components like hard drives and SSDs efficiently.
5. Networking Equipment: Supports routers and switches by providing stable power.
Its wide input voltage range and high switching frequency make it suitable for applications demanding efficiency and small solution size.
Package
The LTC3418EUHF is available in a 32-lead (5mm x 5mm) QFN (Quad Flat No-Lead) package.
