Part Details for LM2574BWM by Micrel Inc
Results Overview of LM2574BWM by Micrel Inc
- Distributor Offerings: (6 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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LM2574BWM Information
LM2574BWM by Micrel Inc is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for LM2574BWM
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
2156-LM2574BWM-ND
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DigiKey | IC REG BUCK ADJ 500MA 14SOIC Min Qty: 281 Lead time: 1 Weeks Container: Bulk MARKETPLACE PRODUCT |
20299 In Stock |
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$1.0700 | Buy Now |
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DISTI #
86119559
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Verical | LM2574BWM Min Qty: 292 Package Multiple: 1 Date Code: 0101 | Americas - 10833 |
|
$0.7986 / $1.2875 | Buy Now |
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DISTI #
86120155
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Verical | LM2574BWM Min Qty: 292 Package Multiple: 1 Date Code: 0001 | Americas - 7988 |
|
$0.7986 / $1.2875 | Buy Now |
|
DISTI #
86113675
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Verical | LM2574BWM Min Qty: 292 Package Multiple: 1 | Americas - 1478 |
|
$0.7986 / $1.2875 | Buy Now |
|
|
Bristol Electronics | 975 |
|
RFQ | ||
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|
Rochester Electronics | 52KHz Simple 0.5A Buck Regulator RoHS: Not Compliant Status: Obsolete Min Qty: 1 | 20299 |
|
$0.6389 / $1.0300 | Buy Now |
Part Details for LM2574BWM
LM2574BWM CAD Models
LM2574BWM Part Data Attributes
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LM2574BWM
Micrel Inc
Buy Now
Datasheet
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LM2574BWM
Micrel Inc
Switching Regulator Voltage-mode 1.8A 63kHz Switching Freq-Max BIPolar PDSO14
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| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | MICREL INC | |
| Package Description | SOIC-14 | |
| Reach Compliance Code | compliant | |
| Factory Lead Time | 4 Weeks | |
| Analog IC - Other Type | SWITCHING REGULATOR | |
| Control Mode | VOLTAGE-MODE | |
| Control Technique | PULSE WIDTH MODULATION | |
| Input Voltage-Max | 40 V | |
| Input Voltage-Min | 4 V | |
| Input Voltage-Nom | 12 V | |
| JESD-30 Code | R-PDSO-G14 | |
| JESD-609 Code | e0 | |
| Length | 9 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 14 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Current-Max | 1.8 A | |
| Output Voltage-Nom | 1.23 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP14,.4 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 240 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 2.65 mm | |
| Supply Current-Max (Isup) | 10 mA | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK | |
| Switching Frequency-Max | 63 kHz | |
| Technology | BIPOLAR | |
| Temperature Grade | INDUSTRIAL | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 7.5 mm |
LM2574BWM Frequently Asked Questions (FAQ)
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The maximum input voltage that can be applied to the LM2574BWM is 40V, but it's recommended to keep it below 35V for reliable operation.
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To ensure stability, make sure to use the recommended output capacitor (Cout) value and type, and keep the input capacitor (Cin) value as small as possible. Also, ensure the PCB layout is well-designed and follows good practices for switching regulators.
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The minimum input voltage required for the LM2574BWM to operate is around 7.5V, but it's recommended to keep it above 8V for reliable startup and operation.
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The LM2574BWM is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as temperature increases to ensure reliable operation. Consult the datasheet for thermal derating curves.
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The output voltage of the LM2574BWM is set by the resistive divider network (R1 and R2) connected to the feedback pin. Use the formula: Vout = 1.23V x (1 + R2/R1) to calculate the output voltage.