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Product Detailed Parameters
- Description：IC REG BUCK BOOST ADJ 340MA 8DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Up, Step-Down, Step-Up/Step-Down
- Output Configuration：Negative
- Topology：Buck, Boost, Charge Pump, Flyback
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.5V
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：-2.5V
- Voltage - Output (Max)：-38V
- Current - Output：340mA (Switch)
- Frequency - Switching：-
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-DFN (2x2)
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Overview
The LT3483AEDC#TRPBF is a micropower inverting DC/DC converter from Analog Devices, housed in an 8-pin WDFN package. It operates with an input voltage range of 2.5 V to 16 V and delivers up to 340 mA switch current. The device features an internal 40V Schottky diode and requires only one external feedback resistor. Quiescent current is 40 uA, with a switching frequency of 150 kHz. Output voltage is adjustable down to -2.5 V. Operating temperature ranges from -40°C to +85°C.
Feature Summary
- Integrates a 40V Schottky diode and power switch for compact design
- Requires only one external resistor for feedback configuration
- Micropower operation with low quiescent current consumption
- Supports negative output voltage generation from positive inputs
Applications
- Portable instrumentation requiring negative supply rails
- Battery-powered devices needing efficient voltage inversion
- Industrial control systems with isolated signal paths
- Medical equipment utilizing low-power inverting topologies
Procurement Notes
Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the EDIC designation corresponds to the correct thermal and electrical grade for your application environment. Cross-reference the datasheet revision date to ensure compatibility with existing design files. Check for any recent product change notices that might affect pinout or performance specifications before finalizing procurement.
Selection Notes
Select this component when a small footprint inverting converter is required with minimal external components. The integrated Schottky diode reduces board space compared to discrete solutions. Ensure the load current does not exceed the 340 mA switch limit. Consider the 150 kHz switching frequency for EMI constraints. Verify input voltage stability within the 2.5 V to 16 V range during operation.
Part Context
This part belongs to the LT3483 family of micropower inverting DC/DC converters. It shares architectural similarities with other Linear Technology (now Analog Devices) power management ICs designed for space-constrained applications. The family emphasizes high efficiency and low standby current, making it suitable for battery-operated electronics where power conservation is critical.
Replacement Considerations
LT3483ES6#TRPBF offers similar inverting functionality but may differ in package type and current rating. LT3483AIDC#TRPBF provides identical electrical characteristics with potentially different temperature grading. Verify pin compatibility and thermal performance before substitution.
