LT3970EMS#PBF
Active40V, 350MA STEP-DOWN REGULATOR WITH 2.5ΜA QUIESCENT CURRENT AND INTEGRATED DIODES
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LT3970EMS#PBF
Active40V, 350MA STEP-DOWN REGULATOR WITH 2.5ΜA QUIESCENT CURRENT AND INTEGRATED DIODES
Technical Specifications
Parameters and characteristics for this part
| Specification | LT3970EMS#PBF |
|---|---|
| Current - Output | 350 mA |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 10-MSOP |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Min) [Min] | 4.2 V |
| Voltage - Output (Max) [Max] | 25 V |
| Voltage - Output (Min/Fixed) | 1.21 V |
LT3970 Series Series
40V, 350mA Step-Down Regulator with 2.5μA Quiescent Current and Integrated Diodes
| Part | Function | Output Configuration | Package / Case | Topology | Voltage - Input (Min) [Min] | Current - Output | Mounting Type | Supplier Device Package | Operating Temperature [Min] | Operating Temperature [Max] | Synchronous Rectifier | Number of Outputs | Voltage - Output (Min/Fixed) | Output Type | Voltage - Output (Max) [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-WFDFN Exposed Pad | Buck | 4.2 V | 350 mA | Surface Mount | 10-DFN (3x2) | -40 C | 125 °C | 1 | 5 V | |||
Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | Buck | 4.2 V | 350 mA | Surface Mount | 10-MSOP | -40 C | 125 °C | 1 | 1.21 V | Adjustable | 25 V | |
Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-WFDFN Exposed Pad | Buck | 4.2 V | 350 mA | Surface Mount | 10-DFN (3x2) | -40 C | 125 °C | 1 | 3.3 V | |||
 Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | Buck | 4.2 V | 350 mA | Surface Mount | 10-MSOP | -40 °C | 150 °C | 1 | 1.21 V | Adjustable | 25 V | |
 Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | Buck | 4.2 V | 350 mA | Surface Mount | 10-MSOP | -40 °C | 150 °C | 1 | 3.3 V | |||
Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | Buck | 4.2 V | 350 mA | Surface Mount | 10-MSOP | -40 C | 125 °C | 1 | 3.3 V | |||
Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | Buck | 4.2 V | 350 mA | Surface Mount | 10-MSOP | -40 C | 125 °C | 1 | 5 V | |||
Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | Buck | 4.2 V | 350 mA | Surface Mount | 10-MSOP | -40 C | 125 °C | 1 | 3.3 V | |||
Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-WFDFN Exposed Pad | Buck | 4.2 V | 350 mA | Surface Mount | 10-DFN (3x2) | -40 C | 125 °C | 1 | 3.3 V | |||
Analog Devices Inc./Maxim Integrated | Step-Down | Positive | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | Buck | 4.2 V | 350 mA | Surface Mount | 10-MSOP | -40 C | 125 °C | 1 | 3.3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | N/A | 3429 | $ 8.41 | 1m+ |
| Tube | 1 | $ 8.77 | 1m+ | |
| 10 | $ 6.05 | |||
| 25 | $ 5.34 | |||
| 100 | $ 4.56 | |||
| 250 | $ 4.17 | |||
| 500 | $ 3.94 | |||
| 1000 | $ 3.75 | |||
| 2500 | $ 3.63 | |||
Description
General part information
LT3970 Series Series
The LT3970 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 40V, and consumes only 2.5μA of quiescent current. A high efficiency switch is included on the die along with the catch diode, boost diode, and the necessary oscillator, control and logic circuitry. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple below 5mV in a typical application. Current mode topology is used for fast transient response and good loop stability. A catch diode current limit provides protection against shorted outputs and overvoltage conditions. An enable pin with accurate threshold is available, producing a low shutdown current of 0.7μA. A power good flag signals when VOUTreaches 90% of the programmed output voltage. The LT3970 is available in small 10-pin MSOP and 3mm × 2mm DFN packages.ApplicationsAutomotive Battery RegulationPower for Portable ProductsIndustrial Supplies
Documents
Technical documentation and resources