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20 pcs
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20 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Tape & Reel |
The LT1931AES5#TRMPBF by AD(RoHS) is a high-power inverting current mode DC/DC converter designed for efficient power conversion. It operates at fixed frequencies of 1.2MHz (LT1931) or 2.2MHz (LT1931A), enabling the use of small surface mount components.
Key electrical specifications include a wide input voltage range from 2.6V to 16V and a low shutdown current of less than 1µA. The device features a low VCESAT switch capable of handling 1A with a typical voltage drop of 400mV. It can generate negative output voltages such as -5V at 350mA or -12V at 150mA from a 5V input, with the LT1931A capable of -5V at 300mA.
This converter utilizes a dual inductor inverting topology, filtering both input and output currents to achieve very low output voltage ripple, approaching 1mVP-P when ceramic output capacitors are used. The low impedance output remains within 1% of nominal during large load steps. The integrated 36V switch allows for a V_IN to V_OUT differential of up to 34V.
The LT1931AES5#TRMPBF is available in a low-profile (1mm) ThinSOT-5 package, suitable for space-constrained applications. Typical applications include disk drive MR head bias, digital camera CCD bias, LCD bias, and GaAs FET bias.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.06 | $2.06 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The LT1931 switches at 1.2MHz and the LT1931A switches at 2.2MHz.
The minimum operating input voltage is 2.6V and the maximum is 16V.
The output ripple is very low, approaching 1mVP-P.
The device is available in a 5-lead ThinSOT package with a height of 1mm.