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LTC4121EUD#TRPBF by:

LTC4121 - 40V 400mA Synchronous Step-Down Battery Charger; Package: QFN; Pins: 16; Temperature Range: -40°C to 85°C

Part Details for LTC4121EUD#TRPBF by Linear Technology

Results Overview of LTC4121EUD#TRPBF by Linear Technology

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Applications Consumer Electronics Telecommunications Automotive

LTC4121EUD#TRPBF Information

LTC4121EUD#TRPBF by Linear Technology is a Power Management Circuit.
Power Management Circuits are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for LTC4121EUD#TRPBF

Part # Distributor Description Stock Price Buy
Win Source Electronics IC BATT CHARGER 40V 400MA 16QFN 2960
  • 4 $9.4791
  • 9 $7.7778
  • 14 $7.5347
  • 19 $7.2917
  • 24 $7.0486
  • 32 $6.3195
$6.3195 / $9.4791 Buy Now

Part Details for LTC4121EUD#TRPBF

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LTC4121EUD#TRPBF Part Data Attributes

LTC4121EUD#TRPBF Linear Technology
Buy Now Datasheet
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LTC4121EUD#TRPBF Linear Technology LTC4121 - 40V 400mA Synchronous Step-Down Battery Charger; Package: QFN; Pins: 16; Temperature Range: -40°C to 85°C
Rohs Code Yes
Part Life Cycle Code Transferred
Ihs Manufacturer LINEAR TECHNOLOGY CORP
Part Package Code QFN
Package Description QFN-16
Pin Count 16
Manufacturer Package Code UD
Reach Compliance Code compliant
Adjustable Threshold YES
Analog IC - Other Type BATTERY CHARGE CONTROLLER
JESD-30 Code S-PQCC-N16
JESD-609 Code e3
Length 3 mm
Number of Functions 1
Number of Terminals 16
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY
Package Code HVQCCN
Package Equivalence Code LCC16,.12SQ,20
Package Shape SQUARE
Package Style CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Seated Height-Max 0.8 mm
Supply Voltage-Max (Vsup) 40 V
Supply Voltage-Min (Vsup) 4.4 V
Supply Voltage-Nom (Vsup) 15 V
Surface Mount YES
Temperature Grade AUTOMOTIVE
Terminal Finish MATTE TIN
Terminal Form NO LEAD
Terminal Pitch 0.5 mm
Terminal Position QUAD
Threshold Voltage-Nom +2.21V
Width 3 mm

LTC4121EUD#TRPBF Related Parts

LTC4121EUD#TRPBF Frequently Asked Questions (FAQ)

  • The maximum input voltage that the LTC4121EUD can handle is 32V, but it's recommended to keep it below 28V for reliable operation.

  • To optimize the inductor selection, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to choose an inductor with a saturation current rating of at least 1.5 times the maximum output current.

  • The SYNC/MODE pin is used to synchronize the switching frequency of multiple LTC4121EUD devices or to select between forced continuous conduction mode (FCCM) and pulse-skipping mode (PSM).

  • Ensure good thermal design and heat sinking to keep the junction temperature (TJ) below 125°C. Use thermal interface materials and follow proper PCB layout guidelines to minimize thermal resistance.

  • Follow a compact, symmetrical layout with the input capacitors and inductor placed close to the IC. Keep the high-current paths short and use a solid ground plane to minimize EMI and noise.

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