LT3999EDD#PBF
ActiveDC/DC CONTROLLER, PUSH-PULL, 2.7V TO 36V SUPPLY, 1 OUTPUT, 48% DUTY CYCLE, 1MHZ, DFN-EP-10
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LT3999EDD#PBF
ActiveDC/DC CONTROLLER, PUSH-PULL, 2.7V TO 36V SUPPLY, 1 OUTPUT, 48% DUTY CYCLE, 1MHZ, DFN-EP-10
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT3999EDD#PBF |
|---|---|
| Current - Output | 1 A |
| Frequency - Switching [Max] | 1 MHz |
| Frequency - Switching [Min] | 50 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Output Configuration | Isolation Capable, Positive |
| Output Type | Adjustable |
| Package / Case | 10-WFDFN Exposed Pad |
| Supplier Device Package | 10-DFN (3x3) |
| Synchronous Rectifier | False |
| Topology | Push-Pull |
| Voltage - Input (Max) [Max] | 36 V |
| Voltage - Input (Min) [Min] | 2.7 V |
LT3999 Series
Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control
| Part | Package / Case | Number of Outputs | Frequency - Switching [Min] | Frequency - Switching [Max] | Operating Temperature [Min] | Operating Temperature [Max] | Output Type | Synchronous Rectifier | Voltage - Input (Max) [Max] | Output Configuration | Topology | Supplier Device Package | Function | Current - Output | Voltage - Input (Min) [Min] | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices Inc./Maxim Integrated | 10-WFDFN Exposed Pad | 1 | 50 kHz | 1 MHz | -40 C | 125 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-DFN (3x3) | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
 Analog Devices Inc./Maxim Integrated | 10-MSOP 10-TFSOP Exposed Pad | 1 | 50 kHz | 1 MHz | -40 C | 125 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-MSOP-EP | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
 Analog Devices Inc./Maxim Integrated | 10-WFDFN Exposed Pad | 1 | 50 kHz | 1 MHz | -40 C | 125 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-DFN (3x3) | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
 Analog Devices Inc./Maxim Integrated | 10-MSOP 10-TFSOP Exposed Pad | 1 | 50 kHz | 1 MHz | -40 C | 125 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-MSOP-EP | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
Analog Devices Inc./Maxim Integrated | 10-MSOP 10-TFSOP Exposed Pad | 1 | 50 kHz | 1 MHz | -40 C | 125 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-MSOP-EP | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
Analog Devices Inc./Maxim Integrated | 10-MSOP 10-TFSOP Exposed Pad | 1 | 50 kHz | 1 MHz | -55 °C | 150 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-MSOP-EP | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
Analog Devices Inc./Maxim Integrated | 10-WFDFN Exposed Pad | 1 | 50 kHz | 1 MHz | -40 C | 125 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-DFN (3x3) | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
 Analog Devices Inc./Maxim Integrated | 10-MSOP 10-TFSOP Exposed Pad | 1 | 50 kHz | 1 MHz | -40 C | 125 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-MSOP-EP | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
Analog Devices Inc./Maxim Integrated | 10-WFDFN Exposed Pad | 1 | 50 kHz | 1 MHz | -40 C | 125 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-DFN (3x3) | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount | |
Analog Devices Inc./Maxim Integrated | 10-MSOP 10-TFSOP Exposed Pad | 1 | 50 kHz | 1 MHz | -40 °C | 150 °C | Adjustable | 36 V | Isolation Capable Positive | Push-Pull | 10-MSOP-EP | Step-Up/Step-Down | 1 A | 2.7 V | Surface Mount |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
LT3999 Series
The LT3999 is a monolithic, high voltage, high frequency DC/DC transformer driver providing isolated power in a small solution footprint.The LT3999 has two 1A current limited power switches that switch out of phase. The duty cycle is programmable to adjust the output voltage. The switching frequency is programmed up to 1MHz and can be synchronized to an external clock for more accurate placement of switcher harmonics. The input operating range is programmed with the precision undervoltage and overvoltage lockouts. The supply current is reduced to less than 1μA during shutdown. A user-defined RC time constant provides an adjustable soft-start capability by limiting the inrush current at start-up.The LT3999 is available in a 10-lead MSOP and 3mm × 3mm DFN package with exposed pad.ApplicationsLow Noise Isolated SuppliesMedical Instrument and SafetyDistributed PowerMultiple Output SuppliesPositive-to-Negative SuppliesNoise Immunity in Data Acquisition, RS232 and RS485
Documents
Technical documentation and resources