LTC3809EMSE-1#PBF External Power Switch Buck Controllers by Analog Devices

Status: Production
Series: LTC3809-1
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC3809-1 is a synchronous step-down switching regulator controller that drives external complementary power MOSFETs using few external components. The constant frequency current mode architecture with MOSFET VDS sensing eliminates the need for a current sense resistor and improves efficiency.Optional Burst Mode operation provides high efficiency operation at light loads. 100% duty cycle provides low dropout operation, extending operating time in battery-powered systems. Burst Mode is inhibited when the MODE pin is pulled low to reduce noise and RF interference.The LTC3809-1 allows either coincident or ratiometric output voltage tracking. Switching frequency is fixed at 550kHz. Fault protection is provided by an overvoltage comparator and a short-circuit current limit comparator. The LTC3809-1 is available in tiny footprint thermally enhanced DFN and 10-lead MSOP packages. Features Package LTC3809 PLL, Selectable Spread Spectrum, Power Good 3x3 DFN-10, MS-10E LTC3809-1 Tracking 3x3 DFN-10, MS-10E LTC3808 PLL, Selectable Spread Spectrum, Tracking, Power Good 4x3 DFN-14, SSOP-16

Where to Buy

Prices starting from US$3.47

Distributor Stock
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Analog Devices
from US$3.47
3,600
in stock
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Logo for Rochester Electronics
Rochester Electronics
from US$3.65
362
in stock
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TME
from US$3.53
0
in stock
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Richardson RFPD
from US$4.60
0
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Features

Programmable Output Voltage Tracking
No Current Sense Resistor Required
Constant Frequency Current Mode Operation for Excellent Line and Load Transient Response
Wide VIN Range: 2.75V to 9.8V
Wide VOUT Range: 0.6V to VIN
0.6V ±1.5% Reference
Low Dropout Operation: 100% Duty Cycle
Selectable Burst Mode®/Pulse-Skipping/Forced Continuous Operation
Auxiliary Winding Regulation
Internal Soft-Start Circuitry
Selectable Maximum Peak Current Sense Threshold
Output Overvoltage Protection
Micropower Shutdown: IQ = 9µA
Tiny Thermally Enhanced Leadless (3mm × 3mm) DFN or 10-lead MSOP Packages

Last 6 months Inventory & Pricing History


Alternative Descriptions

No Rs, L In V, Sync DC/DC Cntr | Analog Devices
PMIC | TME
DC/DC Cntrlr Single-OUT Step Down 600kHz 10-Pin MSOP EP Tube | Richardson RFPD


LTC3809EMSE-1#PBF Semiconductors - ICs by Linear Technology

IC DC DC CONTROLLER SYNC 10MSOP

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

Specifications

Supply Voltage Min 2.75V
Supply Voltage Max 9.8V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 100%
Controller IC Case Style MSOP
No. of Pins 10Pins
Switching Frequency 825kHz
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)
Adjustable Output Voltage Min 0.6V
Base Number 3809
Frequency 750kHz
Operating Temperature Range -40°C to +85°C
Output Current 1A
Output Voltage 9.8V
Primary Input Voltage 9.8V
Termination Type Surface Mount Device
Voltage Regulator Type Synchronous Buck

Last 6 months Inventory & Pricing History


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3809EMSE-1#PBF?

Additional datasheets, footprints and schematics for LTC3809EMSE-1#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3809EMSE-1#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC3809EMSE-1#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC3809EMSE-1#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC3809EMSE-1#PBF fall under?

The LTC3809EMSE-1#PBF is listed under External Power Switch Buck Controllers.

Can I view similar or alternative parts?

You can view similar parts to LTC3809EMSE-1#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 LTC3809EMSE-1#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LTC3809EMSE-1#PBF RoHS compliant?

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

Which authorised distributors for LTC3809EMSE-1#PBF have stock available?

Authorised distributors including Analog Devices, Rochester Electronics, TME and Richardson RFPD have stock available or on a lead time for LTC3809EMSE-1#PBF.

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