LT1304CS8

Overview of LT1304CS8

The LT1304CS8 is a step-up converter IC optimized for high-speed and low-voltage operations, providing excellent performance for battery-powered devices, boost converters, and efficient power transfer from AA alkaline cells.

Pinout

The LT1304CS8 pinout refers to the configuration and function of each pin in its Small Outline Package (SOP) - 8. This package typically includes a diagram showing the layout of the pins when viewed from the top down with pins named sequentially. Each pin on the LT1304CS8 has a specific role such as power supply input, ground connection, or signal interface. The pinout details are crucial for integrating this component into a circuit as they ensure correct connections for optimal device performance. Designers and engineers must refer to the datasheet provided by the manufacturer to get accurate information regarding each pin's function and electrical characteristics.

Features

• 3V Step-Up capability: The LT1304CS8 is capable of providing up to 200mA of output current at a step-up voltage of 3V.
• Suitable for portable instruments, bar code scanners, palmtop computers, diagnostic medical instrumentation, and personal data communicators/computers: The LT1304CS8 is designed for use in battery-powered devices that require efficient power transfer from AA alkaline cells.
• Can provide 5V at 200mA from two cells: The IC can generate a maximum output voltage of 5V and current up to 200mA when powered by two AA alkaline cells.
• Low quiescent current of 10µA in shutdown mode: The LT1304CS8 has a low power consumption of 10µA in shutdown mode, making it suitable for battery-powered devices.
• Operates with input voltage as low as 1.5V: The IC can operate with an input voltage as low as 1.5V, making it suitable for use in applications where the available power source is limited.
• Includes a low-battery detector that remains active in shutdown mode: The LT1304CS8 includes a low-battery detector that remains active even when the IC is in shutdown mode, ensuring that the device can detect and respond to changes in battery voltage.
• Low switch VCESAT of 370mV at 1A typical: The IC has a low switch saturation voltage of 370mV at 1A typical, making it suitable for use in applications where high efficiency is required.
• Quiescent current of 120µA in active mode: The LT1304CS8 has a quiescent current of 120µA when the IC is in active mode, making it suitable for use in battery-powered devices.
• Switching frequency up to 300kHz: The IC can operate at a switching frequency up to 300kHz, making it suitable for use in applications where high-frequency operation is required.
• Programmable peak current with one resistor: The LT1304CS8 has a programmable peak current that can be adjusted using a single resistor, allowing designers to optimize the IC's performance for their specific application.
• Packaged in an 8-lead SO package: The LT1304CS8 is packaged in an 8-lead SOP, making it suitable for use in a wide range of applications.

Applications

The LT1304CS8 is designed for use in battery-powered devices that require efficient power transfer from AA alkaline cells. Some examples of applications where the IC can be used include:

• Battery-powered instruments and appliances
• Portable computers and communication devices
• Medical devices and equipment
• Consumer electronics and appliances

Advantages and Disadvantages

The LT1304CS8 has several advantages that make it suitable for use in a wide range of applications. Some of the advantages include:

• High efficiency: The IC is designed to operate with high efficiency, making it suitable for use in battery-powered devices where power consumption is critical.
• Low quiescent current: The LT1304CS8 has a low quiescent current of 10µA in shutdown mode, making it suitable for use in applications where power consumption is critical.
• Programmable peak current: The IC has a programmable peak current that can be adjusted using a single resistor, allowing designers to optimize the IC's performance for their specific application.

The LT1304CS8 also has some disadvantages that should be considered when designing with the IC. Some of the disadvantages include:

• Limited output current: The IC is capable of providing up to 200mA of output current, which may not be sufficient for all applications.
• Limited input voltage range: The LT1304CS8 can operate with an input voltage as low as 1.5V, but it may not be suitable for use in applications where the available power source is higher than this.

Equivalents

The LT1304CS8 has several equivalents that can be used in place of the IC in certain applications. Some examples of equivalents include:

• Linear Technology's LTC1256
• Analog Devices' ADP8860
• Texas Instruments' TPS61095

Frequently Asked Questions

Q: What is the maximum output current of the LT1304CS8?
A: The maximum output current of the LT1304CS8 is 200mA.

Q: Can the LT1304CS8 operate with an input voltage higher than 1.5V?
A: No, the LT1304CS8 can only operate with an input voltage as low as 1.5V.

Q: What is the quiescent current of the LT1304CS8 in shutdown mode?
A: The quiescent current of the LT1304CS8 in shutdown mode is 10µA.

Q: Can the LT1304CS8 be used in applications where high-frequency operation is required?
A: Yes, the LT1304CS8 can operate at a switching frequency up to 300kHz, making it suitable for use in applications where high-frequency operation is required.

Q: What is the programmable peak current of the LT1304CS8?
A: The programmable peak current of the LT1304CS8 can be adjusted using a single resistor and ranges from 100mA to 200mA.