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 DataSheet (372.84KB)
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The LTC1143 series is a dual step-down switching regulator controller featuring automatic Burst ModeTM operation to maintain high efficiencies at low output currents. This device is composed of two separate regulator blocks, each driving an external power MOSFET at switching frequencies up to 400kHz.
s s s s s s s s s Dual Outputs LTC1143, LTC1143L: 3.3V, 5V LTC1143L-ADJ: Dual Adjustable Very High Efficiency: Over 95% Possible Current Mode Operation for Excellent Line and Load Transient Response High Efficiency Maintained over Three Decades of Output Current Low Standby Current at Light Loads: 160µA/Output Logic-Controlled Shutdown (LTC1143, LTC1143L) Wide VIN Range: 3.5V to 16V (LTC1143L, LTC1143L-ADJ) Very Low Dropout Operation: 100% Duty Cycle Available in Narrow 16-Pin SO Package U APPLICATIONS s s s s s Personal Digital Assistants Notebook and Palmtop Computers Battery-Operated.
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| No. | Part # | Manufacture | Description | Datasheet |
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| 1 | LTC1142 |
Linear Technology |
Dual High Efficiency Synchronous Step-Down Switching Regulators |
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| 2 | LTC1142HV |
Linear Technology |
Dual High Efficiency Synchronous Step-Down Switching Regulators |
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| 3 | LTC1142L |
Linear Technology |
Dual High Efficiency Synchronous Step-Down Switching Regulators |
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| 4 | LTC1143L |
Linear Technology |
Dual High Efficiency SO-16 Step-Down Switching Regulator Controllers |
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| 5 | LTC1143L-ADJ |
Linear Technology |
Dual High Efficiency SO-16 Step-Down Switching Regulator Controllers |
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| 6 | LTC1144 |
Linear Technology |
Switched-Capacitor Wide Input Range Voltage Converter |
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| 7 | LTC1147-3.3 |
Linear Technology |
High Efficiency Step-Down Switching Regulator Controllers |
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| 8 | LTC1147-5 |
Linear Technology |
High Efficiency Step-Down Switching Regulator Controllers |
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| 9 | LTC1147L |
Linear Technology |
High Efficiency Step-Down Switching Regulator Controllers |
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| 10 | LTC1148 |
Linear Technology |
High Efficiency Synchronous Step-Down Switching Regulators |
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| 11 | LTC1148-3.3 |
Linear Technology |
High Efficiency Synchronous Step-Down Switching Regulators |
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| 12 | LTC1148-5 |
Linear Technology |
High Efficiency Synchronous Step-Down Switching Regulators |
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| 13 | LTC1149 |
Linear Technology |
High Efficiency Synchronous Step-Down Switching Regulators |
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| 14 | LTC1149-3.3 |
Linear Technology |
High Efficiency Synchronous Step-Down Switching Regulators |
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| 15 | LTC1149-5 |
Linear Technology |
High Efficiency Synchronous Step-Down Switching Regulators |
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