ON Semiconductor NCP1400ASN50T1: A High-Efficiency Step-Up DC-DC Converter

The NCP1400ASN50T1 is a step-up DC-DC converter designed and manufactured by ON Semiconductor, a leader in energy-efficient innovations. This compact and efficient integrated circuit is specifically tailored for portable applications that require a higher voltage derived from a single-cell battery. The device operates as a switch-mode power supply with a fixed 100 kHz switching frequency, providing a 5V output from an input as low as 0.8V.

Key Features

• Output Voltage: This DC-DC converter offers a fixed output voltage of 5V, which is suitable for powering a wide range of devices that require a consistent and regulated supply.
• High Efficiency: With its high-efficiency design, the NCP1400ASN50T1 can achieve up to 80% efficiency, minimizing battery drain and ensuring longer operation time for battery-powered devices.
• Low Battery Operation: The device can operate with input voltages as low as 0.8V, allowing it to extract energy from batteries that are near their discharge limit, thus extending the usable life of the battery.
• Automatic Pulsed Frequency Modulation (PFM) Control: This feature reduces the quiescent current to a mere 74 µA during light load conditions, further conserving power.
• Small Form Factor: The NCP1400ASN50T1 comes in a space-saving TSOP-5 package, making it ideal for portable applications where space is at a premium.
• Protection Features: It includes built-in thermal shutdown and current limit protection to safeguard the device and the load from adverse conditions.

Applications

The NCP1400ASN50T1 is particularly suited for handheld and battery-powered applications, including:

• Personal Digital Assistants (PDAs)
• Portable Media Players
• Digital Cameras
• Mobile Phones
• Bluetooth® Headsets

ON Semiconductor's NCP1400ASN50T1 is an excellent choice for designers looking for a reliable, high-performance step-up converter that can efficiently boost battery voltage to a stable 5V while maintaining a small footprint. Its combination of high efficiency, low voltage operation, and protection features make it a versatile power solution for a multitude of portable devices.