LT1074CT7#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$7.90

Distributor Stock
Logo for Newark Electronics
Newark Electronics
from US$12.03
235
in stock
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Logo for element14
element14
from US$12.20
235
in stock
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Farnell
from US$11.43
235
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Analog Devices
from US$7.90
82
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Logo for Richardson RFPD
Richardson RFPD
from US$10.20
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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

Dc/Dc Conv, Boost, Buck, 100Khz, 70Deg C | Newark Electronics
DC/DC CONV, BOOST, BUCK, 100KHZ, 70DEG C | element14
Buck Sw Reg | Analog Devices
DC TO DC CONVERTER | Richardson RFPD


LT1074CT7#PBF Semiconductors - ICs by Linear Technology

IC SWITCHING REG 5A ADJ TO-220-7

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 45V
No. of Outputs 1Outputs
DC / DC Converter IC Case TO-220
No. of Pins 7Pins
Output Current 5A
Output Voltage Min 2.5V
Output Voltage Max 50V
Switching Frequency 100kHz
Operating Temperature Max 70°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL -
SVHC No SVHC (15-Jan-2018)
Base Number 1074
Frequency 100kHz
IC Temperature Range Commercial
Operating Temperature Min 0°C
Operating Temperature Range 0°C to +70°C
Output Current Max 5A
Output Voltage 64V
Primary Input Voltage 60V
Supply Voltage Max 40V
Supply Voltage Min 8V
Termination Type Through Hole
Voltage Regulator Type Buck Step Down
Voltage Vcc 35V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT1074CT7#PBF?

Additional datasheets, footprints and schematics for LT1074CT7#PBF are listed on our Part Details page. You can also find images and similar parts to LT1074CT7#PBF on this page.

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What category does LT1074CT7#PBF fall under?

The LT1074CT7#PBF is listed under High Input Voltage Buck Regulators.

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You can view similar parts to LT1074CT7#PBF when available in the High Input Voltage Buck Regulators range under the specifications section at the bottom of the details page.

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Is the LT1074CT7#PBF RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14, Farnell, Analog Devices and Richardson RFPD have stock available or on a lead time for LT1074CT7#PBF.

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