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Product Detailed Parameters
- Description：IC REG BST SEPIC 3.3V 800MA 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Boost, SEPIC
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：1.5V
- Voltage - Input (Max)：8V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：800mA (Switch)
- Frequency - Switching：Up to 300kHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
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Overview
The LT1304CS8-3.3#TRPBF is a micropower DC/DC converter manufactured by Analog Devices Inc., housed in an 8-SOIC package. It functions as a boost or SEPIC switching regulator providing a fixed positive output of 3.3V. The device integrates an 800mA switch and features a low-battery detector that remains active during shutdown mode. This component is designed for applications requiring efficient power conversion with minimal quiescent current consumption.
Feature Summary
- Integrates a low-battery detector that maintains functionality even when the device is in shutdown mode
- Supports both boost and SEPIC topologies for flexible input-to-output voltage configurations
- Designed for micropower applications to minimize energy consumption in battery-operated systems
Applications
- Battery-powered portable electronics requiring stable 3.3V rails
- Systems utilizing boost or SEPIC converter topologies for voltage regulation
- Micropower DC/DC conversion in space-constrained designs using SOIC packages
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the fixed 3.3V output variant matches system requirements, as other voltage options exist within the LT1304 family. Ensure compatibility with 8-SOIC footprint constraints during PCB layout. Cross-reference manufacturer documentation for latest RoHS compliance status before final procurement decisions.
Selection Notes
Select this part when a fixed 3.3V output is required from a variable or lower input voltage source using boost or SEPIC topology. Consider the 800mA switch current limit for load requirements. Evaluate the micropower characteristics against system standby current specifications. Verify that the integrated low-battery detection feature aligns with system monitoring needs without external components.
Part Context
The LT1304 series comprises micropower DC/DC converters from Analog Devices (formerly Linear Technology). The CS8-3.3 variant specifically denotes the fixed 3.3V output version in an 8-pin SOIC package. The #TRPBF suffix typically indicates tape-and-reel packaging with lead-free finish, distinguishing it from tube-packaged equivalents like the #PBF variant.
Replacement Considerations
LT1304CS8-3.3#PBF offers identical electrical performance but in tube packaging instead of tape-and-reel. Other LT1304 variants provide different fixed output voltages if 3.3V is not required. Check for updated revisions in the Analog Devices product line for potential pin-compatible alternatives with improved efficiency or thermal characteristics.
