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LTC3728LEUH#PBF
Linear Technology/Analog DevicesRoHS 
RoHS compliant
RoHS compliantPackage 32-WFQFN Exposed Pad
Category PMIC - Voltage Regulators - DC DC Switching Controllers / PMIC - Voltage Regulators - DC DC Switching Controllers
Description
LTC3728 Buck Tube e3 DC to DC switching controller 3A 750mum 5.5V 260kHz~550kHz
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Inventory: 3031
Minimum: 1
Total Price: USD $1.58
Unit Price: USD $1.581684
≥1 USD $1.581684
≥10 USD $1.492146
≥100 USD $1.407691
≥500 USD $1.328004
≥1000 USD $1.252835
Technical Details
Supply Chain
Factory Lead Time 8 Weeks
Lifecycle Status PRODUCTION (Last Updated: 2 weeks ago)
Physical
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 32-WFQFN Exposed Pad
Number of Pins 32
Technical
Operating Temperature -40°C~85°C TA
Packaging Tube
Published 2011
JESD-609 Code e3
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 32
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Subcategory Switching Regulator or Controllers
Technology CMOS
Terminal Position QUAD
Peak Reflow Temperature (Cel) 260
Time@Peak Reflow Temperature-Max (s) 30
Base Part Number LTC3728
Function Step-Down
Number of Outputs 2
Output Voltage 5.5V
Output Type Transistor Driver
Voltage - Output 1 5.5V
Input Voltage-Nom 15V
Number of Channels 1
Analog IC - Other Type DUAL SWITCHING CONTROLLER
Output Configuration Positive
Output Current 3A
Voltage - Supply (Vcc/Vdd) 4.5V~28V
Control Features Enable, Power Good, Soft Start
Voltage - Output 2 5.5V
Topology Buck
Min Input Voltage 4.5V
Control Mode CURRENT-MODE
Frequency - Switching 260kHz~550kHz
Max Input Voltage 28V
Control Technique PULSE WIDTH MODULATION
Current - Output 1 5A
Synchronous Rectifier Yes
Dropout Voltage 80mV
Switcher Configuration PHASE-SHIFT
Max Frequency 590kHz
Duty Cycle (Max) 99.4%
Current - Output 2 5A
Clock Sync No
Compliance
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Dimensions
Height 750μm
Length 5mm
Width 5mm
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