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Product attributes Property Value
Manufacturer Analog Technologies
Product Series
Packaging Strip |
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 5V
Voltage - Input (Max) 42V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 20V
Current - Output 600mA
Frequency - Switching 1.2MHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 85°C
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SOT-23-6
Supplier Device Package SOT-23-6
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Analog Technologies ATI1934 is a high-frequency Buck (step-down) DC-DC converter IC designed for space-constrained applications. It accepts a wide input voltage from 5V to 42V and delivers up to 600mA of output current with an adjustable output from 0.8V to 20V. The fixed 1.2MHz switching frequency enables the use of tiny external components, reducing the overall solution footprint. Housed in a SOT-23-6 package, this converter is ideal for industrial sensors, automotive electronics, and smart home devices.

  • Wide Input Range: Accepts 5V to 42V, making it robust for automotive and industrial power rails.
  • High Switching Frequency: The 1.2MHz operation allows for small inductors and capacitors, minimizing PCB area.
  • Compact SOT-23-6 Package: Ideal for space-limited designs where board real estate is critical.
  • Adjustable Output: Output can be set from 0.8V to 20V, providing design flexibility for various load requirements.

Industrial Sensor Interfaces

The ATI1934's wide 5V to 42V input range allows it to be powered directly from 24V industrial buses, stepping down to a stable 3.3V or 5V rail for sensors, transceivers, and microcontrollers.

Automotive ECUs and Modules

With a 42V maximum input, this buck converter can handle load-dump transients in 12V automotive systems, providing a regulated low-voltage supply for engine control units, body controllers, and infotainment modules.

Smart Home and Building Automation

In HVAC controllers, lighting systems, and security panels, the ATI1934 can convert a 24V AC/DC supply down to logic levels, simplifying the power design and improving efficiency.

Portable Battery Chargers

The 1.2MHz switching frequency allows for small inductors and capacitors, making this IC suitable for compact battery chargers that step down a higher adapter voltage to charge Li-Ion or Li-Po batteries.

Networking Equipment

For routers, switches, and small-cell base stations, the ATI1934 can generate a clean 1.8V or 3.3V rail from a 12V or 24V input, powering FPGAs, ASICs, and DDR memory.

LED Lighting Drivers

The adjustable output up to 20V and 600mA current capability make it possible to drive a string of LEDs with constant voltage, suitable for architectural and signage lighting.

Q: What type of converter is the ATI1934?
A: It is a Buck (step-down) DC-DC converter IC.
Q: What is the input voltage range?
A: The input voltage range is from 5V to 42V.
Q: What is the maximum output current?
A: The maximum output current is 600mA.
Q: What is the switching frequency?
A: The switching frequency is fixed at 1.2MHz.
Q: What package is available?
A: It comes in a compact SOT-23-6 package.
Q: What is the output voltage range?
A: The output voltage can be set from 0.8V to 20V.
Base Product Number : ATI1934
1.2MHz 5V-42V 600mA Automotive Buck Compact DC-DC Converter Industrial SOT-23-6
Q: What type of converter is the ATI1934?
A: It is a Buck (step-down) DC-DC converter IC.
Q: What is the input voltage range?
A: The input voltage range is from 5V to 42V.
Q: What is the maximum output current?
A: The maximum output current is 600mA.
Q: What is the switching frequency?
A: The switching frequency is fixed at 1.2MHz.
Q: What package is available?
A: It comes in a compact SOT-23-6 package.
Q: What is the output voltage range?
A: The output voltage can be set from 0.8V to 20V.