LTC3780EG#PBF External Power Switch Buck-Boost Controllers by Analog Devices

Status: Production
Series: LTC3780
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC3780 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The constant frequency current mode architecture allows a phase-lockable frequency of up to 400kHz. With a wide 4V to 30V (36V maximum) input and output range and seamless transfers between operating modes, the LTC3780 is ideal for automotive, telecom and battery-powered systems.The operating mode of the controller is determined through the FCB pin. For boost operation, the FCB mode pin can select among Burst Mode® operation, discontinuous mode and forced continuous mode. During buck operation, the FCB mode pin can select among skip-cycle mode, discontinuous mode and forced continuous mode. Burst Mode operation and skip-cycle mode provide high efficiency operation at light loads while forced continuous mode and discontinuous mode operate at a constant frequency.Fault protection is provided by an output overvoltage comparator and internal foldback current limiting. A power good output pin indicates when the output is within 7.5% of its designed set point.

Where to Buy

Prices starting from US$8.82

Distributor Stock
Logo for Newark
Newark Electronics
from US$10.30
2
in stock
Buy Now
Logo for element14 Singapore
element14
from US$10.91
2
in stock
Buy Now
Logo for Farnell UK
Farnell
from US$8.82
2
in stock
Buy Now
Logo for TME
TME
from US$15.59
0
in stock
Buy Now
Logo for Richardson RFPD
Richardson RFPD
from US$9.38
0
in stock
Buy Now
Buy Now

Features

Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT
Wide VIN Range: 4V to 36V Operation
Synchronous Rectification: Up to 98% Efficiency
Current Mode Control
±1% Output Voltage Accuracy: 0.8V < VOUT < 30V
Phase-Lockable Fixed Frequency: 200kHz to 400kHz
Power Good Output Voltage Monitor
Internal LDO for MOSFET Supply
Quad N-Channel MOSFET Synchronous Drive
VOUT Disconnected from VIN During Shutdown
Adjustable Soft-Start Current Ramping
Foldback Output Current Limiting
Selectable Low Current Modes
Output Overvoltage Protection
Available in 24-Lead SSOP and Exposed Pad (5mm × 5mm) 32-Lead QFN Packages

Last 6 months Inventory & Pricing History


Alternative Descriptions

Dc/Dc Ctrl, Sync Buck-Boost, 400Khz | Newark Electronics
DC/DC CTRL, SYNC BUCK-BOOST, 400KHZ | element14
PMIC | TME
DC/DC Cntrlr Single-OUT Step Down/Step Up 440kHz Automotive 24-Pin SSOP Tube | Richardson RFPD


LTC3780EG#PBF Semiconductors - ICs by Linear Technology

IC DC/DC CTRL SMD SSOP24 3780

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

Specifications

Supply Voltage Min 4V
Supply Voltage Max 36V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 99%
Controller IC Case Style SSOP
No. of Pins 24Pins
Switching Frequency 440kHz
Topology Synchronous Boost Synchronous Buck
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 3780
Device Type MOSFET
Driver Case Style SSOP
I / O Delay 80ns
Operating Temperature Range -40°C to +85°C
Output Current 3A
Output Current Max 0.04A
Output Voltage 30V
Output Voltage Max 42V
Supply Voltage Range 4V to 36V
Termination Type Surface Mount Device

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3780EG#PBF?

Additional datasheets, footprints and schematics for LTC3780EG#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3780EG#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC3780EG#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC3780EG#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC3780EG#PBF fall under?

The LTC3780EG#PBF is listed under External Power Switch Buck-Boost Controllers.

Can I view similar or alternative parts?

You can view similar parts to LTC3780EG#PBF when available in the External Power Switch Buck-Boost Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LTC3780EG#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LTC3780EG#PBF RoHS compliant?

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

Which authorised distributors for LTC3780EG#PBF have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, TME and Richardson RFPD have stock available or on a lead time for LTC3780EG#PBF.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for LTC3780EG#PBF often in real-time on the comparison pages.

What if I can't find stock of LTC3780EG#PBF?

You can fill out our help required form which you can use to request a quote for LTC3780EG#PBF from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.