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The LT®3971A is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 38V. Low quiescent current design consumes only 2.8μA of supply current while regulating with no load. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple below 15mV in a typica.
n Ultralow Quiescent Current: 2.8μA IQ Regulating 12VIN to 3.3VOUT n Fixed Output Voltages: 5V 2.2μA IQ Regulating 12VIN to 5VOUT n Low Ripple Burst Mode® Operation: Output Ripple < 15mVP-P n Wide Input Voltage Range: 4.3V to 38V n 1.3A Maximum Output Current n Adjustable Switching Frequency: 200kHz to 2MHz n Synchronizable Between 250kHz to 2MHz n Fast Transient Response n Accurate 1V Enable Pin Threshold n Low Shutdown Current: IQ = 700nA n Power Good Flag n Soft-Start Capability n Internal Compensation n Output Voltage: 1.19V to 30V n Small Thermally Enhanced 10-Lead MSOP Package APPLICATIO.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | LT3971 |
Linear Technology |
2MHz Step-Down Regulator |
|
| 2 | LT3971-3.3 |
Linear |
2MHz Step-Down Regulator |
|
| 3 | LT3971-5 |
Linear |
2MHz Step-Down Regulator |
|
| 4 | LT3971A-5 |
Linear |
Step-Down Regulator |
|
| 5 | LT3970 |
Linear Technology |
350mA Step-Down Regulator |
|
| 6 | LT3970-3.3 |
Linear Technology |
350mA Step-Down Regulator |
|
| 7 | LT3970-3.42 |
Analog Devices |
350mA Step-Down Regulator |
|
| 8 | LT3970-5 |
Linear Technology |
350mA Step-Down Regulator |
|
| 9 | LT3972 |
Linear Technology |
2.4MHz Step-Down Switching Regulator |
|
| 10 | LT3973 |
Linear |
Step-Down Regulator |
|
| 11 | LT3973-3.3 |
Linear |
Step-Down Regulator |
|
| 12 | LT3973-5 |
Linear |
Step-Down Regulator |
|