Analog Technologies, Inc. AT9342
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.22 | $2.22 |
| 15+ | $2.15 | $32.25 |
| 25+ | $2.11 | $52.75 |
| 50+ | $1.99 | $99.50 |
| 100+ | $1.76 | $176.00 |
| N+ | $0.35 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Technologies, Inc. |
| Product Series | |
| Packaging | 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) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-6 |
| Supplier Device Package | SOT-23-6L |
| ROHS |
The AT9342 from Analog Technologies is a versatile step-down (Buck) DC-DC converter designed for a wide range of applications. It accepts an input voltage from 4.2V to 40V and provides an adjustable output from 0.794V to 40V, with a maximum output current of 1A. The device operates at a fixed 1.8MHz switching frequency, allowing for a compact solution with small external components. Housed in a SOT-23-6 package, it is well-suited for automotive, industrial, and networking applications requiring a robust and efficient power conversion solution.
- Ultra-Wide Input Range (4.2V-40V): Handles a variety of power sources, including automotive and industrial rails, with excellent transient immunity.
- Adjustable Output up to 40V: Provides flexibility for both low-voltage logic and higher-voltage auxiliary rails.
- 1.8MHz Fixed Frequency: Balances efficiency and component size, enabling a compact design.
- Small SOT-23-6 Package: Ideal for space-constrained applications without sacrificing performance.
Automotive Power Supplies
The AT9342's wide 4.2V to 40V input range makes it suitable for automotive applications, handling load-dump transients and cold-crank conditions. It can efficiently power sensors, ECUs, and infotainment modules from the 12V battery bus.
Industrial Control Systems
In industrial environments with 24V supply rails, the AT9342 steps down to logic voltages (e.g., 3.3V, 5V) for PLCs, motor controllers, and industrial sensors. Its wide input range provides robustness against voltage spikes.
Networking Equipment
For networking devices powered by 12V or 24V adapters, this buck converter provides a regulated low-voltage rail for switches, routers, and small-cell base stations, ensuring stable operation.
Battery-Powered Tools
In cordless power tools operating from multi-cell Li-ion batteries (up to 40V), the AT9342 efficiently steps down to power the control electronics, display, and communication modules.
Distributed Power Architectures
The AT9342 can be used as a secondary stage in a distributed power system, taking an intermediate bus voltage (e.g., 12V or 24V) and converting it to a local point-of-load supply for FPGAs, ASICs, or peripherals.
- Q: What type of converter is the AT9342?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.2V to 40V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of output current.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.794V to 40V.
- Q: What is the switching frequency?
- A: It operates at a fixed 1.8MHz switching frequency.
- Q: What package is available?
- A: It is available in a SOT-23-6 package.
- Q: What type of converter is the AT9342?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.2V to 40V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of output current.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.794V to 40V.
- Q: What is the switching frequency?
- A: It operates at a fixed 1.8MHz switching frequency.
- Q: What package is available?
- A: It is available in a SOT-23-6 package.

AT9342.pdf