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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3.5A DL 38TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：2
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：34.2V
- Current - Output：3.5A
- Frequency - Switching：110kHz ~ 2.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：38-TFSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：38-TSSOP-EP
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Overview
The LT3692AHFE is a dual current mode PWM step-down DC/DC converter featuring two internal 3.8A switches. It accepts an input voltage range of 3V to 36V and provides adjustable output voltages from 0.8V to 34.2V with up to 3.5A per channel. The device operates at a switching frequency of 2.5MHz and supports a junction temperature range from -40°C to +125°C. Each channel includes independent control pins for input voltage, shutdown, feedback, soft-start, UVLO current limit, and comparator functions.
Feature Summary
- Dual-channel architecture with independent tracking and sequencing capabilities
- Integrated high-side and low-side synchronous power switches
- Programmable soft-start and undervoltage lockout protection
Applications
- Complex power supply tracking and sequencing requirements
- Multi-rail system power distribution
- Industrial equipment power management
Procurement Notes
Verify the specific suffix against official Analog Devices documentation to confirm package type and tape-and-reel specifications. Ensure the component meets required automotive or industrial qualification standards if applicable. Cross-reference the full part number with manufacturer datasheets to validate pinout compatibility and thermal performance characteristics before integration.
Selection Notes
Select this component when designing systems requiring synchronized dual buck converters with precise voltage tracking. The independent control pins facilitate complex startup sequences without external logic. Evaluate thermal dissipation requirements based on the TSSOP-EP package and expected load currents within the specified operating temperature range.
Part Context
This part belongs to the LT3692A family of monolithic dual tracking switching regulators. It is designed for applications demanding high efficiency and compact solution size. The device integrates necessary oscillator, control, and logic circuitry to minimize external component count while maintaining robust performance under varying line and load conditions.
Replacement Considerations
LT3692AEFE#PBF is a documented variant within the same product family offering identical electrical functionality but in a tube package instead of tape-and-reel.
