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LM1770UMF/NOPB

5 Terminals 2.8V~5.5V 5-Pin LM1770 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 100kHz~1MHz Transistor Driver


  • Manufacturer: Texas Instruments
  • Origchip NO: 815-LM1770UMF/NOPB
  • Package: SC-74A, SOT-753
  • Datasheet: -
  • Stock: 346
  • Description: 5 Terminals 2.8V~5.5V 5-Pin LM1770 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 100kHz~1MHz Transistor Driver (Kg)

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Details

Tags

Parameters
Factory Lead Time 6 Weeks
Lifecycle Status ACTIVE (Last Updated: 5 days ago)
Mount Surface Mount
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Number of Pins 5
Operating Temperature -40°C~125°C TJ
Packaging Tape & Reel (TR)
JESD-609 Code e3
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 5
ECCN Code EAR99
Terminal Finish Matte Tin (Sn)
Additional Feature ALSO HAS ADJUSTABLE OUTPUT VOLTAGE AS LOW AS 0.8V
Terminal Position DUAL
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Base Part Number LM1770
Function Step-Down
Number of Outputs 1
Output Voltage 4.5V
Output Type Transistor Driver
Operating Supply Voltage 5.5V
Input Voltage-Nom 3.3V
Analog IC - Other Type SWITCHING CONTROLLER
Output Configuration Positive
Output Current 4A
Voltage - Supply (Vcc/Vdd) 2.8V~5.5V
Quiescent Current 400μA
Input Voltage (Min) 2.8V
Topology Buck
Frequency - Switching 100kHz~1MHz
Control Technique PULSE WIDTH MODULATION
Synchronous Rectifier Yes
Switcher Configuration PUSH-PULL
Max Frequency 1MHz
Max Duty Cycle 95 %
Clock Sync No
Duty Cycle 95 %
Height 1.45mm
Length 2.9mm
Width 1.6mm
Thickness 1.2mm
RoHS Status ROHS3 Compliant
Lead Free Lead Free

LM1770UMF/NOPB Overview


Capsuled in the SC-74A, SOT-753 package, the switching controller suits most application needs. dc motor controller is suitable for 1 output generation. PMIC is packaged in a solid enclosure of Tape & Reel (TR). Transistor Driver dc switching's outputs (s) can be handled by it. DC control operates at 2.8V~5.5V volts and has 2.8V~5.5V supply voltage. Suitable for working in an dc switcher that has a -40°C~125°C TJ. This switching controller can switch at 100kHz~1MHz. A generalization of dc dc regulator can be made using Surface Mount. A SWITCHING CONTROLLER analog IC is connected to the switch converters. The switching converters's terminal (s) are designed at DUAL . The 5 terminations can be used for a wide range of dc switching. A few of the control techniques these dc dc converter ics adapt include PULSE WIDTH MODULATION. The nominal DC switcher's voltage input is 3.3V. In addition to "LM1770", there are other relevant dc to dc converter ics you can find. Switching converter has a total of 5 pins. Input voltage of dc dc voltage regulator should be 2.8V. As determined by the test statistics, the output voltage of DC regulator is 4.5V. You should note that the dc dc regulator's usual output current is 4A. During power-up and power-down, the maximum duty cycle of the voltage regulator dc to dc is set to 95 %. Having a Surface Mount makes DC switcher suitable for most application and prototype designs. There is a maximum frequency of 1MHz for this dc regulators. DC to DC voltage regulator has a value of ALSO HAS ADJUSTABLE OUTPUT VOLTAGE AS LOW AS 0.8V to better satisfy the need. In order for the voltage regulator dc to dc to perform safely and reliably in a circuit, users are advised to apply 5.5V. During dormancy, the dc switching uses 400μA.

LM1770UMF/NOPB Features


Transistor Driver Outputs
Switching Frequency: 100kHz~1MHz
PULSE WIDTH MODULATION
Max Duty Cycle: 95 %
ALSO HAS ADJUSTABLE OUTPUT VOLTAGE AS LOW AS 0.8V

LM1770UMF/NOPB Applications


There are a lot of Texas Instruments LM1770UMF/NOPB DC to DC converter applications.

  • Current source circuits
  • SMT equipment
  • Planers
  • Household control circuits
  • Special machining machine tools
  • Handheld GPS
  • Combined machine tools
  • Various CNC machine tools
  • Elevator lighting
  • Digital precision reference circuits