Allicdata Part #: | LT1074HVCT#PBF-ND |
Manufacturer Part#: |
LT1074HVCT#PBF |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC REG MULT CONFIG INV ADJ TO220Buck, Boost, Flyba... |
More Detail: | N/A |
DataSheet: | LT1074HVCT#PBF Datasheet/PDF |
Quantity: | 551 |
Series: | LT1074 |
Packaging: | Tube |
Part Status: | Active |
Function: | Step-Up, Step-Down, Step-Up/Step-Down |
Output Configuration: | Positive or Negative |
Topology: | Buck, Boost, Flyback |
Output Type: | Adjustable |
Number of Outputs: | 1 |
Voltage - Input (Min): | 8V |
Voltage - Input (Max): | 64V |
Voltage - Output (Min/Fixed): | 2.5V |
Voltage - Output (Max): | 35V |
Current - Output: | 5.5A (Switch) |
Frequency - Switching: | 100kHz |
Synchronous Rectifier: | No |
Operating Temperature: | 0°C ~ 70°C (TA) |
Mounting Type: | Through Hole |
Package / Case: | TO-220-5 Formed Leads |
Supplier Device Package: | TO-220-5 |
Base Part Number: | LT1074 |
Due to market price fluctuations,if you need to purchase or consult the price.You can contact us or emial to us: sales@allicdata.com
1. DESCRIPTION
The LT1074HVCT#PBF 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 com- ponents, 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 LT1074HVCT#PBF to drive a tappedinductor in the buck mode with output currents up to 10A. The LT1074HVCT#PBF 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 LT1074HVCT#PBF nearly bust-proof for output overloads or shorts. The input voltage range as a buck converter is 8V to 60V, but a selfboot feature allows input voltages as low as 5V in the inverting and boost configurations. The LT1074HVCT#PBF is available in low cost 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.
2. FEATURES
1. 5A Onboard Switch (LT1074)
2. Operates Up to 60V Input
3. 100kHz Switching Frequency
4. Greatly Improved Dynamic Behavior
5. Available in Low Cost 5 and 7-Lead Packages
6. Only 8.5mA Quiescent Current
7. Programmable Current Limit
8. Micropower Shutdown Mode
3. APPLICATIONS
1. Buck Converter with Output Voltage Range of 2.5V to 50V
2. Tapped-Inductor Buck Converter with 10A Output at 5V
3. Positive-to-Negative Converter
4. Negative Boost Converter
5. Multiple Output Buck Converter
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