LTC3549EDCB#TRMPBF Micropower Buck Regulators by Analog Devices

Status: Production
Series: LTC3549
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC3549 is a high efficiency, monolithic synchronous buck regulator using a constant-frequency, current mode architecture. The output voltage is adjusted via an external resistor divider.A fixed switching frequency of 2.25MHz is supported. This switching frequency allows the use of small surface mount inductors and capacitors, including ceramics.Supply current during Burst Mode operation is only 50µA dropping to < 1µA in shutdown. The 1.6V to 5.5V input voltage range makes the LTC3549 ideally suited for single cell Li-Ion, Li-Metal and 2-cell alkaline, NiCd or NiMH battery-powered

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Prices starting from US$2.26

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Features

1.6V to 5.5V Input Voltage Range
Internal Soft-Start
Low Ripple Burst Mode® Operation
Output Ripple: <20mVP-P
IQ: 50µA
2.25MHz Constant-Frequency Operation
High Effi ciency: Up to 93%
250mA Output Current (VIN = 1.8V, VOUT = 1.2V)
450mA Peak Inductor Current
No Schottky Diode Required
Low Dropout Operation: 100% Duty Cycle
0.611V Reference Voltage
Stable with Ceramic Capacitors
Shutdown Mode Draws <1µA Supply Current
Current Mode Operation for Excellent Line and Load Transient Response
Overtemperature Protection
Available in a Low Profi le (0.75mm) 6-Lead (2mm × 3mm) DFN Package

Alternative Descriptions

250mA L VIN Buck Reg in 2 x 3 | Analog Devices
Dc/Dc Conv, Sync Buck, 2.25Mhz, 85Deg C | Newark Electronics
DC/DC CONV, SYNC BUCK, 2.25MHZ, 85DEG C | element14
DC TO DC CONVERTER | Richardson RFPD


LTC3549EDCB#TRMPBF Semiconductors - ICs by Linear Technology

IC BUCK REG 250MA 6DFN

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

Specifications

Topology Synchronous Buck (Step Down)
Input Voltage Min 1.6V
Input Voltage Max 5.5V
No. of Outputs 1Outputs
DC / DC Converter IC Case DFN
No. of Pins 6Pins
Output Current 250mA
Output Voltage Min 611mV
Output Voltage Max 5.5V
Switching Frequency 2.7MHz
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 3549
Frequency 2.25MHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +85°C
Output Current Max 250mA
Primary Input Voltage 5.5V
Supply Voltage Min 1.6V
Termination Type Surface Mount Device
Voltage Regulator Type Step Down (Buck)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3549EDCB#TRMPBF?

Additional datasheets, footprints and schematics for LTC3549EDCB#TRMPBF are listed on our Part Details page. You can also find images and similar parts to LTC3549EDCB#TRMPBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC3549EDCB#TRMPBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC3549EDCB#TRMPBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC3549EDCB#TRMPBF fall under?

The LTC3549EDCB#TRMPBF is listed under Micropower Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to LTC3549EDCB#TRMPBF when available in the Micropower Buck Regulators 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 LTC3549EDCB#TRMPBF you can contact the distributor directly for product support, shipping queries etc.

Is the LTC3549EDCB#TRMPBF RoHS compliant?

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

Which authorised distributors for LTC3549EDCB#TRMPBF have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Chip One Stop have stock available or on a lead time for LTC3549EDCB#TRMPBF.

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