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ANALOG DEVICES LTC7805RUFDM#PBF
DC/DC Controller, Synchronous Buck, 4.5 V to 40 V Supply, 2 Output, 100% Duty Cycle, 3MHz, QFN-EP-28
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- LTC7805RUFDM#PBF
- Order Code:
- 4033915
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- Technical Datasheet:
- LTC7805RUFDM#PBF Datasheet
- ECAD / MCAD
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Product Overview
LTC®7805 is a high performance dual step-down synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages. Constant frequency current mode architecture allows a phase-lockable switching frequency of up to 3MHz. This operates from a wide 4.5V to 40V input supply range. Power loss and supply noise are minimized by operating the two controller output stages out-of-phase. The very low no-load quiescent current extends operating runtime 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 and power good output indicators. The MODE pin selects among burst mode operation, pulse-skipping mode, or continuous inductor current mode at light loads. Typical applications are transportation, industrial, military/avionics.
- PassThru™/100% duty cycle capable, spread spectrum operation, RSENSE or DCR current sensing
- Out-of-phase controllers reduce required input capacitance and power supply induced noise
- Selectable continuous, pulse-skipping or low ripple, Burst Mode® operation at light loads
- Power good output voltage monitors, internal LDO powers gate drive from VIN or EXTVCC
- Total input supply current in regulation is 14µA typ (front page circuit, 14V to 3.3V, RUN2=0V)
- Feedback current is ±50nA maximum
- VIN shutdown current is 1.5µA typical (RUN1,2=0V)
- 28-lead plastic QFN package
- Temperature rating range from -40°C to 150°C
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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- 4.5V
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- 40V
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- 2Outputs
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- 100%
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- QFN-EP
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- 28Pins
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- 3MHz
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- Synchronous Buck (Step Down)
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- -40°C
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- 150°C
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- -
- :
- -
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- MSL 1 - Unlimited
Technical Documents (1)
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30 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays)
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Extra stock is available upon order to the Supplier Lead Time which is approximately 4/21/25
30 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
¥1,228.92
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¥1,351.81
Inc. JCT)
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| 1+ | ¥1,228.92 (¥1,351.81) | ( ) |
| 10+ | ¥946.77 (¥1,041.45) | ( ) |
| 73+ | ¥669.33 (¥736.26) | ( ) |
| 146+ | ¥645.82 (¥710.40) | ( ) |
| 292+ | ¥622.30 (¥684.53) | ( ) |
| 511+ | ¥621.55 (¥683.71) | ( ) |
| 1022+ | ¥621.17 (¥683.29) | ( ) |
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