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Product Detailed Parameters
- Description：IC REG BUCK 3.3V 1A 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：3.6V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：1A
- Frequency - Switching：250kHz ~ 2.2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：16-MSOP-EP
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Overview
The LT3695EMSE-3.3#PBF is a micropower step-down switching regulator manufactured by Analog Devices Inc., housed in a 16-lead MSOP package with an exposed pad. It provides a fixed 3.3V output at up to 1A load current, operating from an input voltage range of 3.6V to 36V. The device features a programmable switching frequency between 250kHz and 2.2MHz and draws only 35µA quiescent current. It supports shutdown mode and operates within a temperature range of -40°C to +125°C.
Feature Summary
- Fault-tolerant operation allows the regulator to maintain regulation even if the output is shorted to the input voltage.
- Micropower architecture ensures minimal energy consumption during standby through low quiescent current and effective shutdown control.
Applications
- Battery-powered portable electronic devices requiring efficient power conversion
- Industrial systems needing fault-tolerant voltage regulation under harsh conditions
- Automotive electronics operating within specified temperature and voltage ranges
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm availability status as distribution channels may list limited stock or end-of-life notices for this specific variant. Ensure the fixed 3.3V output matches your design requirements before procurement.
Selection Notes
Select this component when a fixed 3.3V rail is required with high fault tolerance against input-output shorts. It is suitable for space-constrained designs due to the compact MSOP-16 package. Consider the 250kHz to 2.2MHz frequency range for optimizing external inductor size versus efficiency trade-offs.
Part Context
This part belongs to the LT3695 family of micropower buck regulators designed for applications demanding high reliability and low power consumption. The EMSE designation specifies the MSOP-16 package type, while the 3.3#PBF suffix denotes the fixed 3.3V output voltage and lead-free construction.
Replacement Considerations
LT3695EMSE-5#PBF offers identical functionality with a fixed 5V output instead of 3.3V. Other family members like LT3695IMSE-3.3#TRPBF provide the same electrical characteristics but differ in packaging format (tape and reel vs. tube).
