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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1A SOT23-6L
- Series：-
- Mfr：Analog Technologies, Inc.
- Package：Bulk
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.2V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：0.794V
- Voltage - Output (Max)：40V
- Current - Output：1A
- Frequency - Switching：1.8MHz
- Synchronous Rectifier：No
- Operating Temperature：150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-23-6L
- Grade：-
- Qualification：-
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Overview
The AT9342 is a high-frequency buck-type switching regulator manufactured by Analog Technologies, Inc. It features an integrated high-side high-voltage power MOSFET with a resistance of 500mΩ. The device operates at a switching frequency of 1.8MHz and supports a maximum input voltage of 40V. It delivers an adjustable output voltage starting from 0.794V and provides up to 1A of continuous output current. The component is designed for surface mount installation in SOT-23-6 packages and supports junction temperatures up to 150°C.
Feature Summary
- Integrates a high-side high-voltage power MOSFET within the package
- Operates at a high switching frequency of 1.8MHz for compact design
- Supports wide input voltage range up to 40V
- Provides adjustable output voltage capability
Applications
- Point-of-load regulation in industrial systems
- Power supply stages for embedded controllers
- Battery-powered equipment requiring efficient step-down conversion
- General-purpose DC-DC conversion in space-constrained designs
Procurement Notes
Verify the manufacturer designation as Analog Technologies, Inc., distinct from other entities using similar nomenclature. Confirm the specific package variant SOT-23-6L matches the required footprint. Ensure the datasheet confirms the 1A output rating and 150°C thermal limits for the intended application environment before finalizing procurement orders.
Selection Notes
Select this component when a synchronous rectifier is not strictly required but high efficiency is needed via the integrated MOSFET. The 1.8MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 40V input limit and 1A current capacity against load requirements. The SOT-23-6 package suits applications with strict board space limitations.
Part Context
The AT9342 belongs to the portfolio of DC-DC switching regulators offered by Analog Technologies, Inc. It serves as a step-down converter solution, complementing other models like the AT3408 and AT821 in their lineup. This part addresses the need for compact, high-frequency power management in modern electronic designs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official distributor channels or manufacturer support for direct cross-reference information if alternative sourcing is required.
