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Product Detailed Parameters
- Description：IC REG QUAD BUCK/LINEAR 38TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Topology：Step-Down (Buck) (3), Linear (LDO) (1)
- Number of Outputs：4
- Frequency - Switching：900kHz ~ 1.1MHz
- Voltage/Current - Output 1：-, 2.7A
- Voltage/Current - Output 2：-, 1.8A
- Voltage/Current - Output 3：-, 1.8A
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：Yes
- Voltage - Supply：4V ~ 36V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：38-TFSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：38-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3507AIFE#PBF is a quad output power management IC from Analog Devices Inc., housed in a 38-TSSOP-EP package. It integrates three adjustable step-down (buck) converters and one linear regulator (LDO). The device operates with an input voltage range of 4V to 36V and features a switching frequency between 900kHz and 1.1MHz. Output currents are rated at 2.7A for the first channel, and 1.8A each for channels two and three. The component supports surface mount mounting and functions within an operating temperature range of -40°C to 125°C.
Feature Summary
- Integrates three high-current buck regulators and one LDO in a single compact package
- Includes internal sequencing logic for controlled power-up and power-down sequences
- Supports wide input voltage ranges suitable for various industrial supply rails
- Features exposed pad thermal enhancement for improved heat dissipation
Applications
- Industrial control systems requiring multiple regulated voltage rails
- Embedded computing platforms needing efficient power distribution
- Automotive electronics applications with strict thermal constraints
Procurement Notes
Verify the specific suffix PBF indicates lead-free packaging compliance when sourcing. Confirm that the TSSOP-EP package variant matches your PCB footprint requirements precisely. Ensure the operating temperature grade aligns with your environmental specifications. Cross-reference the manufacturer part number against official Analog Devices documentation to avoid counterfeit components during procurement.
Selection Notes
Select this component when a single IC solution is required to generate multiple distinct voltage levels efficiently. Consider the 38-pin TSSOP-EP package for its balance of pin count and thermal performance. Evaluate the fixed switching frequency range against EMI constraints in your design. Compare the integrated LDO capability against external solutions to determine space savings.
Part Context
This part belongs to the LT3507 family of quad output regulators designed for dense power architectures. It serves as a consolidated power management solution replacing discrete regulator combinations. The family targets applications demanding high efficiency and minimal board space utilization. Related variants may offer different temperature grades or packaging options such as QFN.
Replacement Considerations
LT3507AHFE#PBF offers the same electrical specifications but with an extended operating temperature range up to 150°C. LT3507AEFE#TRPBF provides identical functionality in a tape-and-reel packaging format for automated assembly.
