LTC3735EG#PBF Digitally Programmable Regulators by Analog Devices

Status: Production
Series: LTC3735
RoHS: Compliant
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The LTC3735 is a 2-phase synchronous step-down switching regulator controller that drives all N-channel power MOSFETs in a constant frequency architecture. The output voltage is programmable by six VID bits during normal operation and by external resistors during initial boot-up and deeper sleep state. The LTC3735 drives its two output stages out-of-phase at frequencies up to 550kHz to minimize the RMS ripple currents in both input and output capacitors. This antiphase technique also doubles the apparent switching frequency, improving the transient response while operating each phase at an optimum frequency for efficiency. Thermal design is further simplified by cycle-by-cycle current sharing between the two phases.An Intel compatible PSIB input is provided to select between two modes of operation. Fully enhanced synchronous mode achieves a very small output ripple and very fast transient response while power saving mode realizes very high efficiency. OPTI-LOOP® compensation allows the transient response to be optimized for a wide range of output capacitance and ESR values.

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Features

Output Stages Operate Antiphase
±1% Output Voltage Accuracy
6-Bit IMVP-IV VID Code: VOUT = 0.7V to 1.708V
Intel Compatible Power Saving Mode (PSIB)
Stage Shedding Improves Low Current Efficiency
Power Good Output with Adaptive Masking
Lossless Voltage Positioning
Dual Input Supply Capability for Load Sharing
Resistor Programmable VOUT at Boot-Up and Deeper Sleep State
Resistor Programmable Deep Sleep Offset
Programmable Fixed Frequency: 210kHz to 550kHz
Adjustable Soft-Start Current Ramping
Foldback Output Current Limit
Short-Circuit Shutdown Timer with Defeat Option
Overvoltage Protection
Available in 36-Lead SSOP (0.209 Wide) and 38-Lead (5mm × 7mm) Packages

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Alternative Descriptions

DC/DC Cntrlr Dual-OUT Step Down 550kHz 36-Pin SSOP Tube | Richardson RFPD


LTC3735EG#PBF Semiconductors - ICs by Linear Technology

DC/DC CONTROLLER INTEL 1% 36SSOP

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

Supply Voltage Min -
Supply Voltage Max 7V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 98.5%
Controller IC Case Style SSOP
No. of Pins 36Pins
Switching Frequency 610kHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Operating Temperature Range -40°C to +85°C
Output Current 40A
Output Voltage 1.71V
Primary Input Voltage 24V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3735EG#PBF?

Additional datasheets, footprints and schematics for LTC3735EG#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3735EG#PBF on this page.

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What category does LTC3735EG#PBF fall under?

The LTC3735EG#PBF is listed under Digitally Programmable Regulators.

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Is the LTC3735EG#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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