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LM1770UMFX/NOPB

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

Manufacturer: Texas Instruments
Origchip NO: 815-LM1770UMFX/NOPB
Package: SC-74A, SOT-753
Datasheet: -
Stock: 762
Description: 5 Terminals 2.8V~5.5V 5-Pin LM1770 DC to DC converter ICSWITCHING CONTROLLER 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
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 %
Number of Output Phases	1
Height	1.45mm
Length	2.9mm
Width	1.6mm
Thickness	1.2mm
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

LM1770UMFX/NOPB Overview

In the SC-74A, SOT-753 package, the switching controller meets most application requirements. Packaged in solid enclosures, this pmic has a Tape & Reel (TR) rating. A total of Transistor Driver dc switching's outputs can be handled by it. 2.8V~5.5V is the supply voltage and the operating voltage of the dc control. A -40°C~125°C TJ dc switcher is not a problem. Switching can be done at 100kHz~1MHz with this switching controller. The Surface Mount allows it to be used for dc dc regulator in general. Thare switch converters are connected to an analog integrated circuit (IC) of type SWITCHING CONTROLLER. A switching converters's terminal (s) sits at the DUAL position. A variety of dc switching's functions can be performed on 5 terminations. Some of the control techniques used by these dc dc converter ics are PULSE WIDTH MODULATION. 3.3V nominal DC switcher's voltage input. LM1770 can be used to locate other relevant dc to dc converter ics. There are only 5 pins on switching converter. dc dc voltage regulators should have a minimum input voltage of 2.8V. Statistically, DC regulator outputs 4.5V volts. You should note down the dc dc regulator's usual output current of 4A when you start a project. A duty cycle set at 95 % ensures voltage regulator dc to dc reliability during power-on and power-off. DC switcher's Surface Mount makes it qualified for most application and prototype designs. DC switcher'sThere is a maximum frequency of 1MHz on this dc regulators. The value of DC to DC voltage regulator is set at ALSO HAS ADJUSTABLE OUTPUT VOLTAGE AS LOW AS 0.8V in order to fulfill the requirements more effectively. For safe and reliable operation in a circuit, voltage regulator dc to dc is suggested that users apply 5.5V. As long as the dc switching is in a dormant state, it utilizes 400μA. This controller switches with 1 phases.

LM1770UMFX/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

LM1770UMFX/NOPB Applications

There are a lot of Texas Instruments LM1770UMFX/NOPB DC to DC converter applications.

Analog precision reference circuits
Remotely powered electric motors
Combined machine tools
Precision electronic equipment
Low output voltage switching power supply circuits
Hydrogen power
Computer rooms
Telecommunications equipment
Program control systems
Digital display device