Specifications
| Attribute | Value |
| Minimum Operating Temperature | 0 C |
| Maximum Operating Temperature | + 85 C |
| Series | LTC1735 |
| Brand | Analog Devices |
| Product Type | Switching Voltage Regulators |
| Subcategory | PMIC - Power Management ICs |
| Mounting Type | SMD/SMT |
| Current - Supply | 450 uA |
| Topology | Buck |
| Output Voltage | 800 mV to 6 V |
| Current - Output | 20 A |
| Number of Outputs | 1 Output |
| Input Voltage - Min | 3.5 V |
| Input Voltage - Max | 36 V |
| Frequency - Switching | 300 kHz |
| Height | 1.1 mm |
| Delivery Restrictions | Mouser does not sell this product in your region. |
| Package / Case | SSOP-16 |
Overview
Description
The LTC1735CGN is a high-performance voltage regulator designed by Analog Devices, specifically tailored for powering high-efficiency microprocessors and digital signal processors. It features a step-down (buck) topology that allows it to efficiently convert higher input voltages to lower output voltages, making it suitable for battery-powered applications.
Key specifications include a wide input voltage range, typically from 4.5V to 30V, and an adjustable output voltage down to 1.25V. The device supports a maximum output current of 1.5A and offers high efficiency, often exceeding 90%, which minimizes heat generation and extends battery life.
The LTC1735CGN incorporates features such as overcurrent protection, thermal shutdown, and soft-start functionality, ensuring robust operation in varied conditions. Its compact design and surface mount package (GN) make it ideal for space-constrained PCB layouts. Overall, the LTC1735CGN is an excellent choice for applications requiring reliable and efficient power management.
Key specifications include a wide input voltage range, typically from 4.5V to 30V, and an adjustable output voltage down to 1.25V. The device supports a maximum output current of 1.5A and offers high efficiency, often exceeding 90%, which minimizes heat generation and extends battery life.
The LTC1735CGN incorporates features such as overcurrent protection, thermal shutdown, and soft-start functionality, ensuring robust operation in varied conditions. Its compact design and surface mount package (GN) make it ideal for space-constrained PCB layouts. Overall, the LTC1735CGN is an excellent choice for applications requiring reliable and efficient power management.
Equivalent
The LTC1735CGN is a voltage monitor designed for monitoring power supply voltages. Equivalent products include the MAX811, MAX812, and LM811 series from Texas Instruments. Other alternatives are the MCP100 and MCP101 from Microchip. Always verify the specifications and features to ensure compatibility for your specific application.
Features
The LTC1735CGN is a high-performance battery charger IC designed for lithium-ion and lithium-polymer batteries. Key features include:
1. Input Voltage Range: Operates with a wide input voltage range, supporting various power supply types.
2. Charging Current Control: Programmable output current for optimal charging efficiency.
3. Microprocessor Interface: I²C-compatible for easy communication with microcontrollers, enabling status monitoring and control.
4. Thermal Regulation: Protects against overheating with built-in thermal regulation.
5. Safety Features: Includes overvoltage, overcurrent, and short-circuit protection to enhance safety during operation.
6. LED Indicators: Provides visual feedback for charge status through multiple LED outputs.
7. Compact Package: Available in a 20-pin TSSOP package, allowing for space-efficient designs.
8. Low Quiescent Current: Minimizes power consumption, ideal for battery-operated devices.
These features make the LTC1735CGN suitable for portable electronics and applications requiring efficient battery management.
1. Input Voltage Range: Operates with a wide input voltage range, supporting various power supply types.
2. Charging Current Control: Programmable output current for optimal charging efficiency.
3. Microprocessor Interface: I²C-compatible for easy communication with microcontrollers, enabling status monitoring and control.
4. Thermal Regulation: Protects against overheating with built-in thermal regulation.
5. Safety Features: Includes overvoltage, overcurrent, and short-circuit protection to enhance safety during operation.
6. LED Indicators: Provides visual feedback for charge status through multiple LED outputs.
7. Compact Package: Available in a 20-pin TSSOP package, allowing for space-efficient designs.
8. Low Quiescent Current: Minimizes power consumption, ideal for battery-operated devices.
These features make the LTC1735CGN suitable for portable electronics and applications requiring efficient battery management.
Pinout
The LTC1735CGN is a voltage supervisor and reset controller with a total of 8 pins. Here is a brief overview of its pin functions:
1. VCC (Pin 1): Supply voltage input.
2. GND (Pin 2): Ground reference.
3. RESET (Pin 3): Active-low reset output.
4. RESET (Pin 4): Active-low reset output (duplicate).
5. SENSE (Pin 5): Voltage sense input for monitoring supply voltage.
6. VTH (Pin 6): Reference voltage input for threshold setting.
7. MR (Pin 7): Manual reset input, active-low.
8. N/C (Pin 8): No connection.
The LTC1735 monitors supply voltages and generates a reset signal when the voltage drops below a specified threshold, making it suitable for microcontroller and system reset applications.
1. VCC (Pin 1): Supply voltage input.
2. GND (Pin 2): Ground reference.
3. RESET (Pin 3): Active-low reset output.
4. RESET (Pin 4): Active-low reset output (duplicate).
5. SENSE (Pin 5): Voltage sense input for monitoring supply voltage.
6. VTH (Pin 6): Reference voltage input for threshold setting.
7. MR (Pin 7): Manual reset input, active-low.
8. N/C (Pin 8): No connection.
The LTC1735 monitors supply voltages and generates a reset signal when the voltage drops below a specified threshold, making it suitable for microcontroller and system reset applications.
Manufacturer
The LTC1735CGN is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that designs and manufactures a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company specializes in high-performance components used in various applications, including telecommunications, automotive, healthcare, industrial automation, and consumer electronics. Analog Devices is known for its innovative solutions in signal processing, power management, and data conversion. The LTC1735 specifically is a high-performance, low-power voltage supervisor designed for monitoring power supply voltages in various electronic systems.
Application
The LTC1735CGN is a high-performance voltage monitor and supervisor IC primarily used in power management applications. Its key application areas include:
1. Power Supply Monitoring: Ensuring voltage levels remain within specified limits in various power supply circuits.
2. Microprocessor Supervision: Monitoring voltage levels for microcontrollers and processors, providing reset signals during power failures.
3. Battery Management Systems: Overseeing battery voltage to prevent over-discharge or over-voltage conditions.
4. Telecommunications Equipment: Ensuring reliable operation by monitoring supply voltages in telecom systems.
5. Consumer Electronics: Providing voltage supervision in devices like smartphones, tablets, and laptops.
Overall, it enhances system reliability and safety in electronic designs.
1. Power Supply Monitoring: Ensuring voltage levels remain within specified limits in various power supply circuits.
2. Microprocessor Supervision: Monitoring voltage levels for microcontrollers and processors, providing reset signals during power failures.
3. Battery Management Systems: Overseeing battery voltage to prevent over-discharge or over-voltage conditions.
4. Telecommunications Equipment: Ensuring reliable operation by monitoring supply voltages in telecom systems.
5. Consumer Electronics: Providing voltage supervision in devices like smartphones, tablets, and laptops.
Overall, it enhances system reliability and safety in electronic designs.
Package
The LTC1735CGN is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package) format. This package type is designed for space efficiency and ease of mounting on printed circuit boards.
