LM2674M-ADJ/NOPB
ActiveSIMPLE SWITCHER® 40V, 500MA LOW COMPONENT COUNT STEP-DOWN REGULATOR
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LM2674M-ADJ/NOPB
ActiveSIMPLE SWITCHER® 40V, 500MA LOW COMPONENT COUNT STEP-DOWN REGULATOR
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | LM2674M-ADJ/NOPB | LM2674 Series |
|---|---|---|
| Current - Output | 500 mA | 500 mA |
| Frequency - Switching | 260 kHz | 260 kHz |
| Function | Step-Down | Step-Down |
| Mounting Type | Surface Mount | Surface Mount, Through Hole |
| Number of Outputs | 1 | 1 |
| Operating Temperature [Max] | 125 ¯C | 125 ¯C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output Configuration | Positive | Positive |
| Output Type | Adjustable | Adjustable |
| Output Type | - | 1.81 mOhm |
| Package / Case | 8-SOIC | 16-WFDFN Exposed Pad, 8-SOIC, 8-DIP |
| Package / Case | - | 0.3 in |
| Package / Case | - | 7.62 mm |
| Package / Case [x] | 0.154 in | 0.154 in |
| Package / Case [y] | 3.9 mm | 3.9 mm |
| Supplier Device Package | 8-SOIC | 16-WSON (5x5), 8-SOIC, 8-PDIP |
| Synchronous Rectifier | False | False |
| Topology | Buck | Buck |
| Voltage - Input (Min) [Min] | 6.5 V | 6.5 V |
| Voltage - Output (Max) | 37 V | 37 V |
| Voltage - Output (Min/Fixed) | 1.2 V | 1.2 - 12 V |
LM2674 Series
IC REG BUCK 5V 500MA 16WSON
| Part | Synchronous Rectifier | Current - Output | Output Configuration | Frequency - Switching | Voltage - Output (Min/Fixed) | Supplier Device Package | Output Type | Topology | Operating Temperature [Min] | Operating Temperature [Max] | Mounting Type | Function | Voltage - Input (Min) [Min] | Package / Case | Number of Outputs | Voltage - Output (Max) | Package / Case [y] | Package / Case [x] | Output Type | Package / Case | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LM2674LD-5.0/NOPB | 500 mA | Positive | 260 kHz | 5 V | 16-WSON (5x5) | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Surface Mount | Step-Down | 6.5 V | 16-WFDFN Exposed Pad | 1 | |||||||
Texas Instruments LM2674M-ADJ/NOPB | 500 mA | Positive | 260 kHz | 1.2 V | 8-SOIC | Buck | -40 °C | 125 ¯C | Surface Mount | Step-Down | 6.5 V | 8-SOIC | 1 | 37 V | 3.9 mm | 0.154 in | Adjustable | ||||
Texas Instruments LM2674N-5.0/NOPB | 500 mA | Positive | 260 kHz | 5 V | 8-PDIP | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Through Hole | Step-Down | 6.5 V | 8-DIP | 1 | 0.3 in | 7.62 mm | |||||
Texas Instruments LM2674M-12 | 500 mA | Positive | 260 kHz | 12 V | 8-SOIC | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Surface Mount | Step-Down | 6.5 V | 8-SOIC | 1 | 3.9 mm | 0.154 in | |||||
Texas Instruments LM2674M-3.3/NOPB | 500 mA | Positive | 260 kHz | 3.3 V | 8-SOIC | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Surface Mount | Step-Down | 6.5 V | 8-SOIC | 1 | 3.9 mm | 0.154 in | |||||
Texas Instruments LM2674M-12/NOPB | 500 mA | Positive | 260 kHz | 12 V | 8-SOIC | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Surface Mount | Step-Down | 6.5 V | 8-SOIC | 1 | 3.9 mm | 0.154 in | |||||
Texas Instruments LM2674LD-3.3 | 500 mA | Positive | 260 kHz | 3.3 V | 16-WSON (5x5) | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Surface Mount | Step-Down | 6.5 V | 16-WFDFN Exposed Pad | 1 | |||||||
Texas Instruments LM2674LDX-5.0 | 500 mA | Positive | 260 kHz | 5 V | 16-WSON (5x5) | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Surface Mount | Step-Down | 6.5 V | 16-WFDFN Exposed Pad | 1 | |||||||
Texas Instruments LM2674LD-12/NOPB | 500 mA | Positive | 260 kHz | 12 V | 16-WSON (5x5) | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Surface Mount | Step-Down | 6.5 V | 16-WFDFN Exposed Pad | 1 | |||||||
Texas Instruments LM2674N-12/NOPB | 500 mA | Positive | 260 kHz | 12 V | 8-PDIP | 1.81 mOhm | Buck | -40 °C | 125 ¯C | Through Hole | Step-Down | 6.5 V | 8-DIP | 1 | 0.3 in | 7.62 mm |
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 | $ 4.24 | |
| 10 | $ 3.81 | |||
| 95 | $ 3.12 | |||
| 285 | $ 2.96 | |||
| 570 | $ 2.66 | |||
| 1045 | $ 2.24 | |||
| 2565 | $ 2.13 | |||
| Texas Instruments | TUBE | 1 | $ 3.20 | |
| 100 | $ 2.80 | |||
| 250 | $ 1.97 | |||
| 1000 | $ 1.58 | |||
Description
General part information
LM2674 Series
The LM2674 series of regulators are monolithic integrated circuits built with a LMDMOS process. These regulators provide all the active functions for a step-down (buck) switching regulator, capable of driving a 500-mA load current with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version.
Requiring a minimum number of external components, these regulators are simple to use and include patented internal frequency compensation and a fixed frequency oscillator.
The LM2674 series operates at a switching frequency of 260 kHz, thus allowing smaller sized filter components than what is required with lower frequency switching regulators. Because of very high efficiency (> 90%), the copper traces on the printed-circuit board are the only heat sinking required.
Documents
Technical documentation and resources