LTC1703IG

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LTC1703IG

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  • Mfr. Partie #LTC1703IG
  • Paquet SSOP-28
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  • En stock3621

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Spécifications

Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C
Series LTC1703
Brand Analog Devices
Product Type Switching Voltage Regulators
Subcategory PMIC - Power Management ICs
Mounting Style SMD/SMT
Operating Supply Current 2.2 mA
Topology Buck
Output Voltage 900 mV to 2 V
Output Current 25 A
Number of Outputs 1 Output
Input Voltage - Min 3 V
Input Voltage - Max 7 V
Switching Frequency 550 kHz
Height 2 mm
Delivery Restrictions Mouser does not sell this product in your region.
Package/Case SSOP-28

Vue d'ensemble

Description

The LTC1703IG is a high-efficiency, synchronous step-down switching regulator controller designed by Linear Technology (now part of Analog Devices). It is typically used in applications requiring efficient power conversion from a higher voltage to a lower voltage, such as in computer systems, telecommunications equipment, and other electronic devices.
Key features include:
1. Dual Output Capability: It can independently regulate two output voltages, making it versatile for complex systems.
2. High Efficiency: The synchronous rectification aids in achieving high efficiency, which is crucial for minimizing power loss and heat generation.
3. Wide Input Voltage Range: It supports a broad input voltage range, making it suitable for various power supply sources.
4. Current Mode Control: This feature offers fast transient response and eases loop compensation.
5. Programmable Features: The LTC1703IG allows for programmable current limit and frequency, offering flexibility in design and optimization.
6. Protection Features: It includes overcurrent and overvoltage protection to enhance reliability and safety.
The LTC1703IG is typically packaged in a 16-lead narrow SSOP, which facilitates integration into compact designs. It is highly regarded for its performance in high-density power management applications.

Features

The LTC1703IG is a dual synchronous step-down switching regulator controller designed by Linear Technology. Key features include:
1. Dual Output: It can regulate two independent output voltages from a single input source, ideal for multi-voltage systems.
2. High Efficiency: The controller operates with efficiencies up to 95%, reducing power loss and heat generation.
3. Wide Input Voltage Range: It supports a wide input range, typically from 2.5V to 9.8V, catering to various power supply requirements.
4. Adjustable Output: The output voltage can be adjusted using external resistors, allowing for flexible application configurations.
5. High Switching Frequency: The LTC1703IG operates at high frequencies (up to 550kHz), which enables the use of smaller inductors and capacitors, reducing the overall size of the application.
6. Current Mode Control: It employs current mode control for fast transient response and ease of loop compensation.
7. Protection Features: Includes overvoltage, overcurrent, and thermal protection to ensure reliable operation and safeguard connected components.
8. Package: It is available in a compact SSOP package, suitable for space-constrained designs.
These features make the LTC1703IG well-suited for applications requiring efficient, dual-output power conversion with high reliability.

Package

The LTC1703IG is typically available in a 28-lead SSOP (Shrink Small Outline Package). This package type is compact and suited for surface-mount technology, making it ideal for applications with limited space.

Pinout

The LTC1703IG is a dual synchronous step-down switching regulator controller. It is designed to drive two N-channel MOSFETs in a step-down (buck) converter topology. The LTC1703IG is typically used for high-efficiency power management applications.
The package type for the LTC1703IG is typically an SSOP-16 (Shrink Small Outline Package), which means it has a pin count of 16. The functions of these pins are generally as follows:
1. Vcc: Power supply input.
2. SGND: Signal ground.
3. PGND: Power ground.
4. SW1, SW2: Switch node pins for the respective buck converters.
5. TG1, TG2: Top gate driver outputs for driving the top N-channel MOSFETs.
6. BG1, BG2: Bottom gate driver outputs for the synchronous MOSFETs.
7. FB1, FB2: Feedback inputs to set the output voltage.
8. COMP1, COMP2: Compensation pins for loop stability.
9. RUN/SS1, RUN/SS2: Run control and soft-start pins.
10. SYNC: Synchronization input to connect multiple converters.
11. PGOOD: Power-good indicator.
Please consult the specific datasheet for the LTC1703IG for detailed specifications and pin configurations.

Manufacturer

The LTC1703IG is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in designing and manufacturing a broad range of analog, mixed-signal, and digital signal processing integrated circuits used in electronic equipment. The company serves a variety of markets, including industrial, automotive, communications, healthcare, and consumer electronics. Known for its innovation in the field of analog technology, Analog Devices provides solutions that are integral to numerous high-performance applications.

Application

The LTC1703IG is a dual synchronous step-down switching regulator, commonly used in applications requiring efficient power management. It is suitable for powering microprocessors, DSPs, and ASICs in computing and telecommunications equipment. The device is often integrated into systems with constraints on space and power, such as portable electronics, networking devices, and laptops. It supports high input voltages and delivers multiple output voltages, ideal for complex digital circuits requiring stable and precise voltage levels.

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