onsemi

NCP1400ASN33T1

NCP1400ASN33T1 Description

The NCP1400ASN33T1 is a fixed-output, step-up (boost) DC-DC switching voltage regulator from onsemi, designed to deliver a stable 3.3V output from an input voltage as low as 0.8V. With a maximum input voltage of 3.3V and an output current capability of 100mA, this compact regulator is optimized for low-power applications. It operates at a switching frequency of 180kHz, ensuring efficient power conversion while minimizing external component size. Packaged in a 5-pin TSOP and available in Tape & Reel (TR), it is suitable for automated surface-mount assembly.

NCP1400ASN33T1 Features

• Wide Input Range (0.8V–3.3V): Ideal for battery-powered devices, including single-cell alkaline or NiMH applications.
• Fixed 3.3V Output: Eliminates the need for external feedback resistors, simplifying design.
• High Efficiency (Boost Topology): Optimized for low-input voltage scenarios, reducing power loss.
• Compact Form Factor: 5-pin TSOP package saves board space in space-constrained designs.
• Non-Synchronous Rectification: Cost-effective solution for low-current applications.
• 180kHz Switching Frequency: Balances efficiency and noise performance.
• MSL1 (Unlimited Shelf Life): No moisture sensitivity concerns during storage or assembly.

NCP1400ASN33T1 Applications

This regulator is particularly suited for:

• Portable Electronics: Powers sensors, microcontrollers, and wireless modules in handheld devices.
• Battery-Powered Systems: Extends runtime in single-cell AA/AAA or coin-cell applications.
• IoT & Wearables: Efficiently steps up low voltages from energy harvesters or thin-film batteries.
• Backup Power Supplies: Maintains stable 3.3V output in low-voltage scenarios.
• Consumer Electronics: Used in compact devices requiring minimal external components.

Conclusion of NCP1400ASN33T1

The NCP1400ASN33T1 is a reliable, cost-effective boost regulator for low-power, low-voltage applications. Its wide input range, fixed output, and compact design make it an excellent choice for battery-operated and space-constrained systems. While now obsolete, it remains a viable solution for legacy designs or applications where efficiency and simplicity are critical. For new designs, consider onsemi's updated alternatives with enhanced features.