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100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators
| Manufacturer : | Analog Devices, Inc |
|---|---|
| Package/Case : | TO-3 |
| Product Categories : | Step-Up (Boost) Regulators ; Internal Power Switch Boost |
| Datasheet: | LT1171MK Datasheet (PDF) |
| RoHs Status: | Lead free/RoHS Compliant |
| In-stock: | 208 |
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LT1171MK Product Details
The LT1170/LT1171/LT1172 are monolithic high power switching regulators. They 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 LT1170/LT1171/LT1172 to be built in a standard 5-pin TO-3 or TO-220 power package as well as the 8-pin packages (LT1172). This makes them extremely easy to use and provides “bust proof” operation similar to that obtained with 3-pin linear regulators.
The LT1170/LT1171/LT1172 operate with supply voltages from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no external power devices. By utilizing current-mode switching techniques, they provide excellent AC and DC load and line regulation.
The LT1170/LT1171/LT1172 have many unique features not found even on the vastly more difficult to use low power control chips presently available. They use adaptive antisat switch drive to allow very wide ranging load currents with no loss in efficiency. An externally activated shutdown mode reduces total supply current to 50μA typically for standby operation.
Feature
- Wide Input Voltage Range: 3V to 60V
- Low Quiescent Current: 6mA
- Internal 5A Switch (2.5A for LT1171, 1.25A for LT1172)
- Shutdown Mode Draws Only 50μA Supply Current
- Very Few External Parts Required
- Self-Protected Against Overloads
- Operates in Nearly All Switching Topologies
- Flyback-Regulated Mode Has Fully Floating Outputs
- Comes in Standard 5-Pin Packages
- LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages
- Can Be Externally Synchronized
Applications
- Logic Supply 5V at 10A
- 5V Logic to ±15V Op Amp Supply
- Battery Upconverter
- Power Inverter (+ to –) or (– to +)
- Fully Floating Multiple Outputs
User Note:
This data sheet is only intended to provide specifications, graphs, and a general functional description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in the higher frequency. A CAD design program called SwitcherCAD® is also available.
(Picture: Pinout)
(Picture: Diagram)
Technical Parameters
- Number of Outputs
- 1
- Vinmin | V
- 3
- Vinmax | V
- 40
- Switch Currenttyp | A
- 2.5
- Vout Maxtyp | V
- 40
- Synchronous
- No
- Comments
- VIN to 40V, Operates in Nearly All Switching Topologies
- Isupplytyp | A
- 6m
LT1171MK Datasheet
-
LT1171 Technical Documentation/Data sheet
LT1171MK Related Products
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Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
FAQ:
- Q: How does Jotrin guarantee that LT1171MK is the original manufacturer or agent of ADI?
- We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their LT1171MK devices; we pay more attention to the channels and quality of LT1171MK products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of LT1171MK chips? Including ADI original factory information, Step-Up (Boost) Regulators ; Internal Power Switch Boost application, LT1171MK pictures?
- You can use Jotrin's intelligent search engine, or filter by Step-Up (Boost) Regulators ; Internal Power Switch Boost category, or find it through Analog Devices, Inc Information page.
- Q: Are the ADI's LT1171MK price and stock displayed on the platform accurate?
- The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LT1171MK, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days. - Q: What is the process for returns or replacement of LT1171MK?
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the LT1171MK we delivered, we will accept the replacement or return of the LT1171MK only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LT1171MK.
(3)The LT1171MK is unused and only in the original unpacked packaging.
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(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy. - Q: How to contact us and get support, such as LT1171MK datasheet pdf, LT1171 pin diagram?
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Analog Devices, Inc
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