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ANALOG DEVICES LTC7811IUJ#PBF
DC/DC Controller, Buck, Boost, 1 to 40V Supply, 3 Output, 100% Duty Cycle, 3MHz, QFN-EP-40
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- LTC7811IUJ#PBF
- Order Code:
- 4033920
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- Technical Datasheet:
- LTC7811IUJ#PBF Datasheet
- ECAD / MCAD
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Product Overview
LTC7811 is a high performance triple output (buck/ buck/boost) DC/DC switching regulator controller that drives all N-channel power MOSFET stages. Its constant frequency current mode architecture allows a phase-lockable switching frequency of upto 3MHz. It operates from a wide 4.5V to 40V input supply range. When biased from the output of the boost converter or another auxiliary supply, this device can operate from an input supply as low as 1V after start-up. The very low no-load quiescent current extends operating run time in battery powered systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. It features a precision 0.8V reference for the bucks, 1.2V reference for the boost and a power good output indicator. It is used in applications such as automotive and transportation, industrial, military/avionics etc.
- Outputs remain in regulation through cold crank down to 1V input supply voltage
- Boost output voltage limited only by external components
- Spread spectrum operation, RSENSE or DCR current sensing
- Selectable continuous, pulse-skipping, or Low Ripple Burst Mode® operation at light loads
- Boost channel current monitor output
- Programmable frequency is 100KHz typ at (RFREQ = 374Kohm, PLLIN/SPREAD = 0V)
- VBIAS shutdown current is 1.5µA typ at (RUN1, 2, 3 = 0V, TA = 25°C)
- Operating temperature range from -40°C to 125°C
- Package style is 40-lead plastic QFN
Footnotes
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
Product Information
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- Current Mode Control
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- 1V
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- 40V
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- 3Outputs
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- 100%
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- QFN-EP
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- 40Pins
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- 3MHz
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- Buck, Boost
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- -40°C
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- 125°C
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- -
- :
- -
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- MSL 1 - Unlimited
Technical Documents (1)
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Extra stock is available upon order to the Supplier Lead Time which is approximately 4/7/25
122 deliver in 3-4 business days from our UK warehouse
Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
¥959.31
(
¥1,055.24
Inc. JCT)
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| Quantity | Price (Incl JCT) | Your Price (Incl JCT) |
|---|---|---|
| 1+ | ¥959.31 (¥1,055.24) | ( ) |
| 10+ | ¥797.86 (¥877.65) | ( ) |
| 61+ | ¥785.76 (¥864.34) | ( ) |
| 122+ | ¥773.65 (¥851.02) | ( ) |
| 305+ | ¥761.55 (¥837.71) | ( ) |
| 549+ | ¥749.44 (¥824.38) | ( ) |
| 1037+ | ¥749.23 (¥824.15) | ( ) |
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