LTC3891MPUDC#TRPBF

RoHS

RoHS compliant

Package 20-WFQFN Exposed Pad

Category Integrated Circuits (ICs) / PMIC - Voltage Regulators - DC DC Switching Controllers

Description LTC3891 Buck Tape & Reel (TR) S-PQCC-N20 DC to DC switching controller 4mm 5.1V 105kHz~835kHz 350kHz~535kHz -55C~150C TJ

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Technical Details

Supply Chain

Factory Lead Time 16 Weeks

Physical

Mounting Type Surface Mount

Package / Case 20-WFQFN Exposed Pad

Surface Mount YES

Technical

Operating Temperature -55°C~150°C TJ

Packaging Tape & Reel (TR)

Published 2012

JESD-609 Code e3

Part Status Active

Moisture Sensitivity Level (MSL) 1 (Unlimited)

Number of Terminations 20

ECCN Code EAR99

Terminal Finish Matte Tin (Sn)

Additional Feature ALSO OPERATES IN ADJUSTABLE MODE FROM 0.80V TO 24V

Subcategory Switching Regulator or Controllers

Technology CMOS

Terminal Position QUAD

Terminal Pitch 0.5mm

Base Part Number LTC3891

JESD-30 Code S-PQCC-N20

Function Step-Down

Number of Outputs 1

Output Voltage 5.1V

Output Type Transistor Driver

Input Voltage-Nom 12V

Analog IC - Other Type SWITCHING CONTROLLER

Output Configuration Positive

Voltage - Supply (Vcc/Vdd) 4V~60V

Control Features Current Limit, 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) 60V

Control Technique PULSE WIDTH MODULATION

Synchronous Rectifier Yes

Switcher Configuration PUSH-PULL

Duty Cycle (Max) 99%

Clock Sync No

Dimensions

Height Seated (Max) 0.8mm

Length 4mm

Width 3mm

Compliance

RoHS Status ROHS3 Compliant

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