LTC3569EUD#PBF
ActiveCONV DC-DC 2.5V TO 5.5V SYNCHRONOUS STEP DOWN TRIPLE-OUT 0.425V TO 5.5V 1.2A/0.6A/0.6A 20-PIN QFN EP TUBE
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LTC3569EUD#PBF
ActiveCONV DC-DC 2.5V TO 5.5V SYNCHRONOUS STEP DOWN TRIPLE-OUT 0.425V TO 5.5V 1.2A/0.6A/0.6A 20-PIN QFN EP TUBE
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3569EUD#PBF |
|---|---|
| Current - Output | 1.2 A, 600 mA |
| Frequency - Switching | 2.25 MHz |
| Frequency - Switching [Max] | 3 MHz |
| Frequency - Switching [Min] | 1 MHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 3 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 20-WFQFN Exposed Pad |
| Supplier Device Package | 20-QFN (3x3) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 2.5 V |
| Voltage - Output (Max) [Max] | 5.5 V |
| Voltage - Output (Min/Fixed) | 0.425 V |
LTC3569 Series
Triple Buck Regulator with 1.2A and Two 600mA Outputs and Individual Programmable References
| Part | Voltage - Input (Max) [Max] | Package / Case | Voltage - Output (Max) [Max] | Output Type | Voltage - Input (Min) [Min] | Output Configuration | Topology | Function | Number of Outputs | Frequency - Switching | Frequency - Switching [Max] | Frequency - Switching [Min] | Voltage - Output (Min/Fixed) | Supplier Device Package | Mounting Type | Synchronous Rectifier | Current - Output | Operating Temperature [Min] | Operating Temperature [Max] | Package / Case [custom] | Package / Case [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | 5.5 V | 20-WFQFN Exposed Pad | 5.5 V | Adjustable | 2.5 V | Positive | Buck | Step-Down | 3 | 2.25 MHz | 3 MHz | 1 MHz | 0.425 V | 20-QFN (3x3) | Surface Mount | 1.2 A 600 mA | -40 °C | 125 ¯C | |||
Analog Devices | 5.5 V | 20-WFQFN Exposed Pad | 5.5 V | Adjustable | 2.5 V | Positive | Buck | Step-Down | 3 | 2.25 MHz | 3 MHz | 1 MHz | 0.425 V | 20-QFN (3x4) | Surface Mount | 1.2 A 600 mA | -40 °C | 125 ¯C | |||
Analog Devices | 5.5 V | 16-TSSOP Exposed Pad | 5.5 V | Adjustable | 2.5 V | Positive | Buck | Step-Down | 3 | 2.25 MHz | 3 MHz | 1 MHz | 0.425 V | 16-TSSOP-EP | Surface Mount | 1.2 A 600 mA | -40 °C | 125 ¯C | 0.173 " | 4.4 mm | |
Analog Devices | 5.5 V | 16-TSSOP Exposed Pad | 5.5 V | Adjustable | 2.5 V | Positive | Buck | Step-Down | 3 | 2.25 MHz | 3 MHz | 1 MHz | 0.425 V | 16-TSSOP-EP | Surface Mount | 1.2 A 600 mA | -40 °C | 125 ¯C | 0.173 " | 4.4 mm | |
Analog Devices | 5.5 V | 16-TSSOP Exposed Pad | 5.5 V | Adjustable | 2.5 V | Positive | Buck | Step-Down | 3 | 2.25 MHz | 3 MHz | 1 MHz | 0.425 V | 16-TSSOP-EP | Surface Mount | 1.2 A 600 mA | -40 °C | 125 ¯C | 0.173 " | 4.4 mm | |
Analog Devices | 5.5 V | 16-TSSOP Exposed Pad | 5.5 V | Adjustable | 2.5 V | Positive | Buck | Step-Down | 3 | 2.25 MHz | 3 MHz | 1 MHz | 0.425 V | 16-TSSOP-EP | Surface Mount | 1.2 A 600 mA | -40 °C | 125 ¯C | 0.173 " | 4.4 mm | |
Analog Devices | 5.5 V | 20-WFQFN Exposed Pad | 5.5 V | Adjustable | 2.5 V | Positive | Buck | Step-Down | 3 | 2.25 MHz | 3 MHz | 1 MHz | 0.425 V | 20-QFN (3x3) | Surface Mount | 1.2 A 600 mA | -40 °C | 125 ¯C | |||
Analog Devices | 5.5 V | 20-WFQFN Exposed Pad | 5.5 V | Adjustable | 2.5 V | Positive | Buck | Step-Down | 3 | 2.25 MHz | 3 MHz | 1 MHz | 0.425 V | 20-QFN (3x3) | Surface Mount | 1.2 A 600 mA | -40 °C | 125 ¯C |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 10.11 | |
| 10 | $ 6.87 | |||
| 25 | $ 6.03 | |||
| 100 | $ 5.65 | |||
| 121 | $ 4.96 | |||
| 250 | $ 5.21 | |||
| 363 | $ 4.65 | |||
| 500 | $ 4.93 | |||
| 1000 | $ 4.71 | |||
Description
General part information
LTC3569 Series
The LTC3569 contains three monolithic, synchronous step-down DC/DC converters. Intended for medium power applications, it operates over a 2.5V to 5.5V input voltage range. The operating frequency is adjustable from 1MHz to 3MHz, allowing the use of tiny, low cost capacitors and inductors. The three output voltages are independently programmable by toggling the EN pins up to 15 times, lowering the 800mV FB references by 25mV per cycle. The first buck regulator sources load currents up to 1200mA. The other two buck regulators each provide 600mA.The two 600mA buck regulators can also be configured to operate as slave power stages, running in parallel with another internal buck regulator to supply higher load currents. When operating as parallel, slave output stages, discrete external components are shared and available output currents sum together.ApplicationsPortable Applications with Multiple Supply RailsGeneral Purpose Step-Down DC/DCDynamic Voltage Scaling Applications
Documents
Technical documentation and resources