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Product Detailed Parameters
- Description：IC REG DL BOOST/LNR 2.2MHZ 8DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Topology：Step-Up (Boost) (1), Linear (LDO) (1)
- Number of Outputs：2
- Frequency - Switching：2.2MHz
- Voltage/Current - Output 1：4.4V, 300mA
- Voltage/Current - Output 2：3.3V, 45mA
- Voltage/Current - Output 3：-
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：2.7V ~ 4.8V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-DFN (2x2)
- Grade：-
- Qualification：-
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Overview
The LT3048EDC-3.3#TRPBF is a low noise bias generator from Analog Devices, combining a boost converter and an LDO in a single 8-DFN package. It operates with an input voltage range of 2.7 V to 4.8 V and delivers a fixed 3.3 V output at up to 160 mA. The device features a 2.2 MHz switching frequency and a typical operating supply current of 475 µA. Designed for high performance, it supports operation temperatures from -40°C to +125°C.
Feature Summary
- Integrates a boost converter and linear regulator for efficient bias generation
- Provides low noise power suitable for sensitive analog circuits
- Compact 2mm x 2mm DFN-8 footprint minimizes board space
Applications
- Biasing RF front-end modules
- Powering precision data converters
- Supplying low noise rails for sensor interfaces
Procurement Notes
Verify the specific suffix #TRPBF confirms tape and reel packaging. Confirm the E-grade temperature rating matches system requirements. Check datasheet revision B for updated electrical characteristics. Ensure the 8-DFN thermal pad soldering process aligns with assembly capabilities. Validate input voltage constraints against the actual supply rail.
Selection Notes
Select this component when a compact solution is required for generating clean bias voltages from low input sources. The integrated topology eliminates external inductor and diode requirements found in discrete designs. Consider the 475 µA quiescent current impact on battery life. Verify that the 160 mA output current meets the load demand without excessive thermal dissipation in the small package.
Part Context
This part belongs to the LT3048 series of low noise bias generators. It differs from standard LDOs by including an internal boost stage to handle inputs below the output voltage. The DC2120A and DC2258A are official development kits associated with this family for evaluation purposes.
Replacement Considerations
LT3048IDC-3.3#TRPBF offers industrial temperature grade instead of extended. LT3048EDC-1.8#TRPBF provides a different fixed output voltage. Cross-reference pinouts and thermal pads before substitution.
