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  • LM25122QPWPTQ1

LM25122QPWPTQ1

20 Terminals 3V~42V 20-Pin LM25122 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 450kHz Transistor Driver


  • Manufacturer: Texas Instruments
  • Origchip NO: 815-LM25122QPWPTQ1
  • Package: 20-PowerTSSOP (0.173, 4.40mm Width)
  • Datasheet: -
  • Stock: 557
  • Description: 20 Terminals 3V~42V 20-Pin LM25122 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 450kHz Transistor Driver (Kg)

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Details

Tags

Parameters
Output Type Transistor Driver
Input Voltage-Nom 12V
Analog IC - Other Type SWITCHING CONTROLLER
Output Configuration Positive
Voltage - Supply (Vcc/Vdd) 3V~42V
Quiescent Current 4mA
Control Features Enable, Frequency Control, Soft Start
Input Voltage (Min) 4.5V
Topology Boost, Flyback, SEPIC
Control Mode CURRENT-MODE
Frequency - Switching 450kHz
Input Voltage (Max) 42V
Control Technique PULSE WIDTH MODULATION
Synchronous Rectifier Yes
Height 1.2mm
Length 6.5mm
Width 4.4mm
Thickness 1mm
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Factory Lead Time 6 Weeks
Lifecycle Status ACTIVE (Last Updated: 5 days ago)
Mounting Type Surface Mount
Package / Case 20-PowerTSSOP (0.173, 4.40mm Width)
Surface Mount YES
Number of Pins 20
Operating Temperature -40°C~125°C TJ
Packaging Tape & Reel (TR)
Series Automotive, AEC-Q100
JESD-609 Code e3
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 20
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Additional Feature SEATED HGT-NOM, OUTPUT VOLTAGE OPERATES UP TO 50V
Terminal Position DUAL
Terminal Form GULL WING
Terminal Pitch 0.65mm
Base Part Number LM25122
Function Step-Up, Step-Up/Step-Down
Number of Outputs 1

LM25122QPWPTQ1 Description


For use in high-efficiency synchronous boost regulator applications, the LM25122 is a multiphase capable synchronous boost controller. Peak current mode control is the foundation of the control strategy. Inherent line feedforward, cycle-by-cycle current limiting, and simple loop compensation are all provided by current mode control.

Programmable switching frequencies range up to 600 kHz. Two strong Nchannel MOSFET gate drivers with adaptive deadtime control increase efficiency. For greater efficiency under light load situations, a user-selectable diode emulation mode also permits discontinuous mode operation.



LM25122QPWPTQ1 Features


  • Maximum Input Voltage : 42 V

  • Min Input Voltage : 3 V (4.5 V for startup)

  • Output Voltage up to 50 V

  • Bypass (VOUT = VIN) Operation

  • 1.2 V Reference with ±1.0% Accuracy

  • Free-Run and Synchronizable Switching to 600 kHz

  • Peak Current Mode Control

  • Robust 3 A Integrated Gate Drivers

  • Adaptive Dead-Time Control

  • Optional Diode Emulation Mode

  • Programmable Cycle-by-Cycle Current Limit

  • Hiccup Mode Overload Protection

  • Programmable Line UVLO

  • Programmable Soft-Start

  • Thermal Shutdown Protection

  • Low Shutdown Quiescent Current: 9 μA

  • Programmable Slope Compensation

  • Programmable Skip Cycle Mode Reduces Standby Power

  • Allows External VCC Supply

  • Inductor DCR Current Sensing Capability

  • Multiphase Capability

  • Thermally Enhanced 20-Pin HTSSOP



LM25122QPWPTQ1 Applications


  • 12-V, 24-V, and 48-V Power Systems

  • Automotive Start-Stop

  • Audio Power Supply

  • High Current Boost Power Supply