LT1072CT

Name: LT1072CT
Rating: 4.5 (10 reviews)

Step-up converter for wide voltage range

4,002 Effective Inventory

LT1072CT

Effective Inventory4,002

Step-up converter for wide voltage range

Manufacturer Part # : LT1072CT
Package/Case: TO-220
Part Status : OBSOLETE
Brand: Analog Devices
Product Categories : Voltage Regulators - DC DC Switching Regulators

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LT1072CT DataSheet

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Details

The LT®1072 is a monolithic high power switching regulator. It can be operated in all standard switching configurations including buck, boost, flyback, forward, inverting and “Cuk”. A high current, high efficiency switch is included on the die along with all oscillator, control, and protection circuitry. Integration of all functions allows the LT1072 to be built in a standard 5-pin TO-3 or TO-220 power package as well as the 8-pin miniDlP. This makes it extremely easy to use and provides “bust proof” operation similar to that obtained with 3-pin linear regulators.The LT1072 operates with supply voltages from 3V to 60V, and draws only 6mA quiescent current. It can deliver load power up to 20 watts with no external power devices. By utilizing current-mode switching techniques, it provides excellent AC and DC load and line regulation.FEATURES■ Available in MiniDiP, TO-220, and TO-3 Packages■ Wide Input Voltage Range 3V to 60V■ Low Quiescent Current—6mA■ Internal 1.25A Switch■ Very Few External Parts Required■ Self-Protected Against Overloads■ Operates in Nearly All Switching Topologies■ Shutdown Mode Draws Only 50µA Supply Current■ Flyback-Regulated Mode has Fully Floating Outputs■ Can be Externally SynchronizedAPPLICATION■ Logic Supply 5V at 2.5A■ 5V Logic to ±15V Op Amp Supply■ Offline Converter up to 50W■ Battery Upconverter■ Power lnverter (+ to –) or (– to +)■ Fully Floating Multiple Outputs■ Driver for High Current Supplies

Key Features

Available in MiniDiP, TO-220, and TO-3 Packages
Wide Input Voltage Range 3V to 60V
Low Quiescent Current—6mA
Internal 1.25A Switch
Very Few External Parts Required
Self-Protected Against Overloads
Operates in Nearly All Switching Topologies
Shutdown Mode Draws Only 50µA Supply Current
Flyback-Regulated Mode has Fully Floating Outputs
Can be Externally Synchronized

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Rohs Code	No	Part Life Cycle Code	Obsolete
Reach Compliance Code	not_compliant	ECCN Code	EAR99
HTS Code !	8542.39.00.01	Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE	Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	60 V	Input Voltage-Min	3 V
Input Voltage-Nom	15 V	JESD-30 Code	R-PZFM-T5
JESD-609 Code	e0	Number of Functions	1
Number of Terminals	5	Operating Temperature-Max	100 °C
Operating Temperature-Min		Output Current-Max	1.25 A
Output Voltage-Nom	1.24 V	Package Body Material	PLASTIC/EPOXY
Package Code	TO-220	Package Equivalence Code	ZIP5,.15,.2,67TB
Package Shape	RECTANGULAR	Package Style	FLANGE MOUNT
Qualification Status !	Not Qualified	Supply Current-Max (Isup)	9 mA
Surface Mount !	NO	Switcher Configuration	BOOST
Switching Frequency-Max	47 kHz	Technology	BIPOLAR
Temperature Grade !	OTHER	Terminal Finish	TIN LEAD OVER NICKEL
Terminal Form !	THROUGH-HOLE	Terminal Pitch !	1.7 mm
Terminal Position	ZIG-ZAG	Product Category !	Switching Voltage Regulators
RoHS	No&nbsp-RoHS Version Available	Output Voltage	Adjustable
Output Current !	1.25 A	Input Voltage, Max	40 V
Number of Outputs	1 Output	Topology	Boost, Buck, Cuk, Flyback, Forward, Inverting
Package / Case	TO-220-5	Mounting Style	Through Hole
Switching Frequency !	40 kHz	Minimum Operating Temperature	0 C
Maximum Operating Temperature !	+ 100 C	Series	LT1072
Input Voltage, Min	3 V	Brand	Analog Devices
Height	4.57 mm	Operating Supply Current	6 mA
Product Type !	Switching Voltage Regulators	Subcategory	PMIC - Power Management ICs

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LT1072CT PDF Download

FAQs

What is LT1072CT?

The LT1072CT is a versatile high efficiency step-down switching regulator designed by Linear Technology, now part of Analog Devices. It is ideal for applications requiring a compact and efficient power supply solution, such as battery-operated devices, portable equipment, and distributed power systems.

How Does LT1072CT Work?

The LT1072CT operates as a step-down switching regulator, converting a higher input voltage to a lower output voltage with high efficiency. It utilizes a synchronous rectification topology to minimize power loss and maximize energy conversion. The regulator features adjustable output voltage and current limiting for flexible power supply designs.

How Many Pins does LT1072CT have and What are the Functions of the Pinout Configuration?

The LT1072CT is housed in a 16-lead TO-220 package. The pinout configuration includes:

VIN: Input voltage pin.
SW: Switching node pin.
GND: Ground pin.
FB: Feedback pin for output voltage regulation.
ON/OFF: On/Off control pin.
COMP: Compensation pin for control loop stability.
SS/TR: Soft-start/Tracking pin for gradual output voltage ramp-up.
PGND: Power ground pin for internal circuitry.
VOUT: Output voltage pin.

What are the Pros and Cons of LT1072CT?

Pros:

High Efficiency: Achieves high efficiency power conversion, reducing heat dissipation.
Compact Design: The TO-220 package offers a rugged and compact form factor for easy integration.
Adjustable Output: Provides flexibility with adjustable output voltage and current limiting.
Synchronous Rectification: Utilizes synchronous rectification for improved power efficiency.
Wide Input Voltage Range: Suitable for a wide range of input voltages for versatile power supply applications.

Cons:

Switching Noise: May require additional filtering or shielding to minimize switching noise in sensitive applications.
External Components: Certain applications may need additional external components for optimum performance.
Thermal Management: Efforts may be required for effective heat dissipation in high power applications.

Are There Any Equivalents/Alternatives to LT1072CT for Recommendation?

The LM2576 from Texas Instruments is a similar step-down switching regulator with adjustable output voltage.
Alternatives to the LT1072CT include the NCV4275 from ON Semiconductor and the MAX5035 from Maxim Integrated.

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