MXL1074, MXL1076

5A/2A, Step-Down, PWM, Switch-Mode DC-DC Regulators

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Status Explanations for product status codes

Part Number Status Explanation
MXL1074 This product is No Longer Available.This product was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. For further information, contact us. The data sheet remains available for existing users.

To the best of our knowledge, a second-source replacement for this part is available from Linear Technology. 

MXL1076 This product is No Longer Available.This product was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. For further information, contact us. The data sheet remains available for existing users.

To the best of our knowledge, a second-source replacement for this part is available from Linear Technology. 

Description

The MXL1074/MXL1076 are monolithic, bipolar, pulse-width modulation (PWM), switch-mode DC-DC regulators optimized for step-down applications. The MXL1074 is rated at 5A, while the MXL1076 is rated at 2A. Few external components are needed for standard operation because the power switch, oscillator, and control circuitry are all on-chip. Employing a classic buck topology, these regulators perform high-current step-down functions, but can also be configured as an inverter, a negative boost converter, or a flyback converter.

The regulators have excellent dynamic and transient-response characteristics, while featuring cycle-by-cycle current limiting to protect against overcurrent faults and short-circuit output faults. The MXL1074/MXL1076 also have a wide 8V to 40V input range in the step-down configuration. In inverting and step-up configurations, the input can be as low as 5V.

The MXL1074/MXL1076 are available in a 5-pin TO-220 package. The devices have a preset 100kHz oscillator frequency and a preset current limit of 6.5A for the MXL1074, and 2.6A for the MXL1076. The MXL1074/MXL1076 are pin compatible with the LT1074/LT1076.
 

Data Sheet

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Key Features

  • Input Range: Up to 40V
  • 5A On-Chip Power Switch (MXL1074)
  • 2A On-Chip Power Switch (MXL1076)
  • Adjustable Output: 2.5V to 35V
  • 100kHz Switching Frequency
  • Excellent Dynamic Characteristics
  • Few External Components
  • 8.5mA Quiescent Current
  • TO-220 Package
 

Applications/Uses

  • Distributed Power from High-Voltage Buses
  • High-Current Inverter
  • High-Current, High-Voltage Step-Down Applications
  • Isolated DC-DC Conversion
  • Multiple-Output Step-Down Converter
  • Negative Step-Up Converter
   

Diagram

MXL1074, MXL1076: Typical Operating Circuit
Typical Operating Circuit

Reliability Reports

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Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MXL1074CT     N/A No Longer Available TO;5 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MXL1074CT-SL     N/A No Longer Available TO;5 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MXL1074ET     N/A No Longer Available TO;5 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MXL1076CT     N/A No Longer Available TO220;5 pin;176 mm²

Land Pattern: Not Available
Use pkgcode/variation: C225-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
  4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Notes and Comments

Up to 40V input range, 5A on-chip Power Switch (MXL1074)
Up to 40V input range, 2A on-chip Power Switch (MXL1076)


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Document Ref.: 19-0102 Rev 3; 1995-09-01
This page last modified: 2007-05-30


 


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