LINEAR TECHNOLOGY LT1304/LT1304-3.3/LT1304-5 handbook

About this manual

The LT1304, LT1304‑3.3, and LT1304‑5 are micropower step‑up DC/DC converters with low‑battery detection that operate from input voltages as low as 1.5 V. They deliver regulated outputs of 3.3 V or 5 V (adjustable versions up to 25 V) while maintaining very low quiescent current, making them suitable for battery‑operated devices.

The document includes absolute maximum ratings, electrical characteristics, typical performance curves, pin descriptions, layout recommendations, and recommended external components such as inductors, capacitors, and diodes. It also provides example applications and package dimensions for the 8‑lead SO package.

What's inside

• Features Description
• Absolute Maximum Ratings
• Electrical Characteristics
• Typical Performance Characteristics
• Pin Functions
• Operation
• Inductor Selection
• Capacitor Selection
• Diode Selection
• Package Description

Specifications

Frequently asked questions

What is the minimum input voltage for the LT1304?

The LT1304 can operate with an input voltage as low as 1.5 V.

What type of external inductor is recommended for a 2‑cell input application?

A 22 µH or 20 µH inductor such as the Sumida CD54‑220 or Coiltronics CTX20‑1 is recommended.