LTC3857IGN-1#PBF
RoHS 
RoHS compliant
RoHS compliantPackage 28-SSOP (0.154, 3.90mm Width)
Category Integrated Circuits (ICs) / PMIC - Voltage Regulators - DC DC Switching Controllers
Description
CURRENT-MODE CMOS DUAL Surface Mount DC-DC Controller IC -40C~125C TJ 105kHz~835kHz 350kHz~535kHz 24V 9.9mm
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Buying Options
Total Price: USD $10.55
Unit Price: USD $10.5512
≥1 USD $10.5512
≥10 USD $9.53568
Inventory: 66
Minimum: 1
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Technical Details
Technical
Input Voltage-Nom 12V
Number of Channels 1
Analog IC - Other Type DUAL SWITCHING CONTROLLER
Output Configuration Positive
Voltage - Supply (Vcc/Vdd) 4V~38V
Control Features Enable, Frequency Control, Power Good, Soft Start, Tracking
Input Voltage (Min) 4V
Topology Buck
Control Mode CURRENT-MODE
Frequency - Switching 105kHz~835kHz 350kHz~535kHz
Input Voltage (Max) 38V
Control Technique PULSE WIDTH MODULATION
Synchronous Rectifier Yes
Switcher Configuration PHASE-SHIFT
Max Frequency 850kHz
Duty Cycle (Max) 99.4%
Clock Sync No
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 Tube
Operating Temperature -40°C~125°C TJ
Dimensions
Length 9.9mm
Width 3.9mm
Compliance
RoHS Status ROHS3 Compliant
Lead Free Lead Free
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: 3 months ago)
Factory Lead Time 8 Weeks
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