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The LT1432 is a dedicated 5V buck converter driver chip intended to be used with an IC switcher from the LT1070 family. This family of current mode switchers includes current ratings from 1.25A to 10A, and switching frequencies from 40kHz to 100kHz as shown in the table below. DEVICE LT1270A LT1270 LT1170 LT1070 LT1271 LT1171 LT1071 LT1172 LT1072 SWITCH CURR.
s s s s s s s s DESCRIPTIO Accurate Preset +5V Output Up to 90% Efficiency Optional Burst Mode for Light Loads Can be Used with Many LTC Switching ICs Accurate Ultra-Low-Loss Current Limit Operates with Inputs from 6V to 30V Shutdown Mode Draws Only 15µA Uses Small 50µH Inductor The LT1432 is a control chip designed to operate with the LT1170/LT1270 family of switching regulators to make a very high efficiency 5V step-down (buck) switching regulator. A minimum of external components is needed. Included is an accurate current limit which uses only 60mV sense voltage and uses “free” PC board .
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | LT1431 |
Linear |
Programmable Reference |
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| 2 | LT1432-3.3 |
Linear Technology |
3.3V High Efficiency Step-Down Switching Regulator Controller |
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| 3 | LT140A |
Sharp Electrionic Components |
Hall Voltage 160mV Thin-Type Package GaAs Hall Device |
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| 4 | LT140SA |
Sharp Electrionic Components |
Hall Voltage 160mV Thin-Type Package GaAs Hall Device |
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| 5 | LT1413 |
Linear Technology |
Single Supply/ Dual Precision Op Amp |
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| 6 | LT1424-5 |
Linear Technology |
Isolated Flyback Switching Regulator with 5V Output |
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| 7 | LT1424-9 |
Linear Technology |
Isolated Flyback Switching Regulator with 9V Output |
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| 8 | LT1425 |
Linear Technology |
Isolated Flyback Switching Regulator |
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| 9 | LT1441 |
Fema Electronics |
LED |
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| 10 | LT1441M |
Sharp |
Dot Matrix LED |
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| 11 | LT1442M |
Sharp Electrionic Components |
Dot Matrix LED Unit for Outdoor Use (Lamp Type) |
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| 12 | LT1445M |
Sharp Electrionic Components |
Dot Matrix LED Unit for Outdoor Use (Lamp Type) |
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