LTC3621HMS8E#TRPBF
ActiveAnalog Devices Inc
17V, 1A SYNCHRONOUS STEP-DOWN REGULATOR WITH 3.5µA QUIESCENT CURRENT
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LTC3621HMS8E#TRPBF
ActiveAnalog Devices Inc
17V, 1A SYNCHRONOUS STEP-DOWN REGULATOR WITH 3.5µA QUIESCENT CURRENT
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | LTC3621HMS8E#TRPBF | LTC3621 Series |
|---|---|---|
| Current - Output | 1 A | 1 A |
| Frequency - Switching | 1 MHz | 1 - 2.25 MHz |
| Function | Step-Down | Step-Down |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Outputs | 1 | 1 |
| Operating Temperature [Max] | 150 C | 125 - 150 ¯C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output Configuration | Positive | Positive |
| Output Type | Adjustable | Adjustable |
| Output Type | - | 27.03 °C/W |
| Package / Case | Exposed Pad, 8-MSOP, 8-TSSOP | Exposed Pad, 8-MSOP, 8-TSSOP, 6-WFDFN Exposed Pad |
| Package / Case [x] | 0.118 in | 0.118 in |
| Package / Case [x] | 3 mm | 3 mm |
| Supplier Device Package | 8-MSOP-EP | 8-MSOP-EP, 6-DFN (2x3) |
| Synchronous Rectifier | True | True |
| Topology | Buck | Buck |
| Voltage - Input (Max) [Max] | 17 V | 17 V |
| Voltage - Input (Min) [Min] | 2.7 V | 2.7 V |
| Voltage - Output (Max) [Max] | 17 V | 17 V |
| Voltage - Output (Min/Fixed) | 0.6 V | 0.6 - 5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Analog Devices Inc | N/A | 1000 | $ 3.67 | |
| 2500 | $ 4.59 | |||
| DigiKey | Tape & Reel (TR) | 2500 | $ 4.59 | |
| Digikey | Tape & Reel (TR) | 2500 | $ 4.82 | |
| Mouser Electronics | N/A | 2500 | $ 4.81 | |
| Richardson RFPD | N/A | 2500 | $ 4.93 | |
| 5000 | $ 4.74 | |||
LTC3621 Series
17V, 1A Synchronous Step-Down Regulator with 3.5μA Quiescent Current
| Part | Function | Synchronous Rectifier | Frequency - Switching | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case [x] | Package / Case [x] | Package / Case | Output Type | Voltage - Output (Min/Fixed) | Number of Outputs | Supplier Device Package | Topology | Mounting Type | Voltage - Input (Min) [Min] | Current - Output | Voltage - Input (Max) [Max] | Output Configuration | Output Type | Voltage - Output (Max) [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc LTC3621EMS8E-5#PBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621EMS8E#PBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 0.6 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||
Analog Devices Inc LTC3621EDCB-25#TRMPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 5 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621IDCB-3.3#TRMPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621EDCB | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 0.6 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||||
Analog Devices Inc LTC3621EDCB-2 | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 0.6 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||||
Analog Devices Inc LTC3621HMS8E-5#PBF | Step-Down | 1 MHz | 150 C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621EDCB-3.3#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621IMS8E-5#PBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621IMS8E#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 0.6 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||
Analog Devices Inc LTC3621IDCB-5 | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 5 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621EDCB-5#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 5 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621HMS8E-3.3#TRPBF | Step-Down | 1 MHz | 150 C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621HMS8E-5#TRPBF | Step-Down | 1 MHz | 150 C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621IDCB-23.3 | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621HMS8E-23.3#PBF | Step-Down | 2.25 MHz | 150 C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621IDCB#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 0.6 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||||
Analog Devices Inc LTC3621IDCB-2#TRPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 0.6 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||||
Analog Devices Inc LTC3621HMS8E-3.3#PBF | Step-Down | 1 MHz | 150 C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621EMS8E-2#TRPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 0.6 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||
Analog Devices Inc LTC3621EDCB-5 | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 5 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621EMS8E#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 0.6 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||
Analog Devices Inc LTC3621HMS8E-25#TRPBF | Step-Down | 2.25 MHz | 150 C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621EMS8E-25#PBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621EMS8E-2#PBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 0.6 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||
Analog Devices Inc LTC3621IMS8E-23.3#PBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621EMS8E-23.3#TRPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621IMS8E-25#PBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621EDCB-23.3#TRPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621EDCB-2#TRMPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 0.6 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||||
Analog Devices Inc LTC3621IDCB-5#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 5 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621HMS8E#TRPBF | Step-Down | 1 MHz | 150 C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 0.6 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||
Analog Devices Inc LTC3621IDCB-23.3#TRMPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621EDCB#TRMPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 0.6 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||||
Analog Devices Inc LTC3621EMS8E-25#TRPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621EDCB-25#TRPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 5 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621EDCB-3.3 | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621HMS8E-2#PBF | Step-Down | 2.25 MHz | 150 C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 0.6 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||
Analog Devices Inc LTC3621EDCB-23.3#TRMPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621IMS8E-5#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 5 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621IDCB | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 0.6 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | Adjustable | 17 V | ||||
Analog Devices Inc LTC3621IMS8E-3.3#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 0.118 in | 3 mm | 8-MSOP, 8-TSSOP, Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 8-MSOP-EP | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||
Analog Devices Inc LTC3621IDCB-23.3#TRPBF | Step-Down | 2.25 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive | |||||
Analog Devices Inc LTC3621IDCB-3.3#TRPBF | Step-Down | 1 MHz | 125 ¯C | -40 °C | 6-WFDFN Exposed Pad | 27.03 °C/W | 3.3 V | 1 | 6-DFN (2x3) | Buck | Surface Mount | 2.7 V | 1 A | 17 V | Positive |
Description
General part information
LTC3621 Series
The LTC3621/LTC3621-2 is a high efficiency 17V, 1A synchronous monolithic step-down regulator. The switching frequency is fixed to 1MHz or 2.25MHz with a ±40% synchronizing range. The regulator features ultralow quiescent current and high efficiencies over a wide VOUTrange.The step-down regulator operates from an input voltage range of 2.7V to 17V and provides an adjustable output range from 0.6V to VINwhile delivering up to 1A of output current. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency; Burst Mode operation provides the highest efficiency at light loads, while pulse-skipping mode provides the lowest voltage ripple. The MODE pin can also be used to allow the user to sync the switching frequency to an external clock.LTC3621 OptionsPart NameFrequencyVOUTLTC36211.00MHzAdjustableLTC3621-3.31.00MHz3.3VLTC3621-51.00MHz5VLTC3621-22.25MHzAdjustableLTC3621-23.32.25MHz3.3LTC3621-252.25MHz5VAPPLICATIONSPortable-Handheld ScannersIndustrial and Embedded ComputingAutomotive ApplicationsEmergency Radio