LTC3857IGN-1#TRPBF
RoHS 
RoHS compliant
RoHS compliantPackage 28-SSOP (0.154, 3.90mm Width)
Category Integrated Circuits (ICs) / PMIC - Voltage Regulators - DC DC Switching Controllers
Description
LTC3857 Buck Tape & Reel (TR) PolyPhase? DC to DC switching controller 9.9mm 24V 105kHz~835kHz 350kHz~535kHz -40C~125C TJ
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Total Price: USD $6.08
Unit Price: USD $6.08285
≥1 USD $6.08285
≥10 USD $4.9913
≥100 USD $4.8355
≥500 USD $4.6797
≥1000 USD $4.5239
Inventory: 1171
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Technical Details
Compliance
RoHS Status ROHS3 Compliant
Dimensions
Width 3.9mm
Length 9.9mm
Technical
Clock Sync No
Duty Cycle (Max) 99.4%
Max Frequency 850kHz
Switcher Configuration PHASE-SHIFT
Synchronous Rectifier Yes
Control Technique PULSE WIDTH MODULATION
Input Voltage (Max) 38V
Frequency - Switching 105kHz~835kHz 350kHz~535kHz
Control Mode CURRENT-MODE
Topology Buck
Input Voltage (Min) 4V
Control Features Enable, Frequency Control, Power Good, Soft Start, Tracking
Voltage - Supply (Vcc/Vdd) 4V~38V
Output Configuration Positive
Analog IC - Other Type DUAL SWITCHING CONTROLLER
Number of Channels 1
Input Voltage-Nom 12V
Output Type Transistor Driver
Output Voltage 24V
Number of Outputs 2
Function Step-Down
Base Part Number LTC3857
Time@Peak Reflow Temperature-Max (s) 30
Terminal Pitch 0.635mm
Peak Reflow Temperature (Cel) 260
Terminal Form GULL WING
Terminal Position DUAL
Technology CMOS
Subcategory Switching Regulator or Controllers
Terminal Finish Matte Tin (Sn)
ECCN Code EAR99
Number of Terminations 28
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Part Status Active
JESD-609 Code e3
Series PolyPhase?
Published 2012
Packaging Tape & Reel (TR)
Operating Temperature -40°C~125°C TJ
Physical
Number of Pins 28
Surface Mount YES
Package / Case 28-SSOP (0.154, 3.90mm Width)
Mounting Type Surface Mount
Supply Chain
Lifecycle Status PRODUCTION (Last Updated: 4 weeks ago)
Factory Lead Time 8 Weeks
Alternative Model
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