LT1074HVIT#PBF High Input Voltage Buck Regulators by Analog Devices

Status: Production
Series: LT1074
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT1074 is a 5A (LT1076 is rated at 2A) monolithic bipolar switching regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry, and all current limit components,are included on the chip. The topology is a classic positive “buck” configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter, and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1074 to drive a tapped-inductor in the buck mode with output currents up to 10A.The LT1074 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behavior of the regulator is significantly improved over previous designs.On-chip pulse by pulse current limiting makes the LT1074 nearly bust-proof for output overloads or shorts. The input voltage range as a buck converter is 8V to 60V, but a self-boot feature allows input voltages as low as 5V in the inverting and boost configurations.The LT1074 is available in lowcost TO-220 or DD packages with frequency pre-set at 100kHz and current limit at 6.5A (LT1076 =2.6A). A 7-pin TO-220 package is also available which allows current limit to be adjusted down to zero. In addition, full micropower shutdown can be programmed. See Application Note 44 for design details.A fixed 5V output, 2A version is also available. See LT1076-5.

Where to Buy

Prices starting from US$13.71

Distributor Stock
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Analog Devices
from US$13.71
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Newark Electronics
from US$20.88
437
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element14
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Farnell
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Richardson RFPD
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Features

5A Onboard Switch (LT1074)
Operates Up to 60V Input
100kHz Switching Frequency
Greatly Improved Dynamic Behavior
Available in Low Cost 5 and 7-Lead Packages
Only 8.5mA Quiescent Current
Programmable Current Limit
Micropower Shutdown Mode

Alternative Descriptions

Buck Sw Reg | Analog Devices
Dc/Dc Conv, Boost, Buck, 100Khz, 85Deg C | Newark Electronics
DC/DC CONV, BOOST, BUCK, 100KHZ, 85DEG C | element14
DC TO DC CONVERTER | Richardson RFPD


LT1074HVIT#PBF Semiconductors - ICs by Linear Technology

BUCK 8V TO 60VIN 5A ADJ 5TO220

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Topology Buck (Step Down)
Input Voltage Min 7.3V
Input Voltage Max 64V
No. of Outputs 1Outputs
DC / DC Converter IC Case TO-220
No. of Pins 5Pins
Output Current 5A
Output Voltage Min 2.5V
Output Voltage Max 50V
Switching Frequency 100kHz
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL -
SVHC No SVHC (15-Jan-2018)
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +85°C
Output Voltage 75V
Primary Input Voltage 64V

Frequently Asked Questions

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Additional datasheets, footprints and schematics for LT1074HVIT#PBF are listed on our Part Details page. You can also find images and similar parts to LT1074HVIT#PBF on this page.

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What category does LT1074HVIT#PBF fall under?

The LT1074HVIT#PBF is listed under High Input Voltage Buck Regulators.

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Is the LT1074HVIT#PBF RoHS compliant?

This part has not been flagged as RoHS Compliant.

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