LTC3775EUD#PBF External Power Switch Buck Controllers by Analog Devices

Status: Production
Series: LTC3775
RoHS: Compliant
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The LTC3775 is a high efficiency synchronous step-down switching DC/DC controller that drives an all N-channel power MOSFET stage from a 4.5V to 38V input supply voltage. A patented line feedforward compensation circuit and a high bandwidth error amplifier provide very fast line and load transient response. High step-down ratios are made possible by a low 30ns minimum on-time, allowing extremely low duty cycles. MOSFET RDS(ON) current sensing maximizes efficiency. Alternatively, a sense resistor can be used for higher current limit accuracy. Continuous monitoring of the voltages across the top and bottom MOSFETs allows cycle-by-cycle control of the inductor current, configurable by external resistors. The soft-start function controls the duty cycle during start-up, providing a smooth output voltage ramp up. The operating frequency is user programmable from 250kHz to 1MHz and can be synchronized to an external clock.

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Prices starting from US$3.04

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Features

Wide VIN Range: 4.5V to 38V
Line Feedforward Compensation
Low Minimum On-Time: tON(MIN) < 30ns
Powerful On-board MOSFET Drivers
Leading Edge Modulation Voltage Mode Control
±0.75%, 0.6V Reference Voltage Accuracy Over Temperature
VOUT Range: 0.6V to 0.8VIN
Programmable, Cycle-by-Cycle Peak Current Limit
Sense Resistor or RDS(ON) Current Sensing
Programmable Soft-Start
Synchronizable Fixed Frequency from 250kHz to 1MHz
Selectable Pulse-Skipping or Forced Continuous Modes of Operation
Low Shutdown Current: 14μA Typical
Thermally Enhanced 16-Lead MSOP and 3mm × 3mm QFN Packages

Last 6 months Inventory & Pricing History


Alternative Descriptions

PMIC | TME
DC/DC Cntrlr Single-OUT Step Down 1000kHz 16-Pin QFN EP Tube | Richardson RFPD


LTC3775EUD#PBF Semiconductors - ICs by Linear Technology

IC BUCK CNTRL SYNCHR 16QFN

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage Min 4.5V
Supply Voltage Max 38V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 90%
Controller IC Case Style QFN
No. of Pins 16Pins
Switching Frequency 1MHz
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)
Base Number 3775
Operating Temperature Range -40°C to +85°C
Output Voltage 30.4V
Primary Input Voltage 38V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3775EUD#PBF?

Additional datasheets, footprints and schematics for LTC3775EUD#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3775EUD#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC3775EUD#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC3775EUD#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC3775EUD#PBF fall under?

The LTC3775EUD#PBF is listed under External Power Switch Buck Controllers.

Can I view similar or alternative parts?

You can view similar parts to LTC3775EUD#PBF when available in the External Power Switch Buck Controllers range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the LTC3775EUD#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LTC3775EUD#PBF RoHS compliant?

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

Which authorised distributors for LTC3775EUD#PBF have stock available?

Authorised distributors including TME and Richardson RFPD have stock available or on a lead time for LTC3775EUD#PBF.

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