onsemi NCP1937A3DR2G Microcontrollers
Combination Power Factor Correction & Quasi-Resonant Flyback Controller, SOIC20 NB LESS PINS 2, 4 & 19, 2500-REEL
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
NCP1937A3DR2G
Detailed Description
Combination Power Factor Correction & Quasi-Resonant Flyback Controller, SOIC20 NB LESS PINS 2, 4 & 19, 2500-REEL
Package
20-LSOP (0.154", 3.90mm Width), 17 Leads
Lifecycle Status
Active
Datasheet
NCP1937A3DR2G Datasheet
Quick Jump:
Technical Specifications
onsemi NCP1937A3DR2G Microcontrollers technical specifications.
General
RoHS
Yes
Package / Case
20-LSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C
Supply Voltage
9V ~ 30V
Lifecycle Status
Active
Mode
Critical Conduction (CRM)
Current Startup
20 mA
Package
SOIC-20 NB
Alternate Parts Comparison (NCP1937A3DR2G vs NCP500SN33T1G vs NCP718ASN180T1G vs NCP730BMTADJTBG)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-LSOP | SOT-23-5 Thin, TSOT-23-5 | SOT-23-5 Thin, TSOT-23-5 | 6-WDFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| RoHS | Yes | Compliant | Compliant | Yes |
| Lifecycle Status | Active | Production | Production | Active |
| Package | SOIC-20 NB | TSSOP | VSSOP | WDFN-6 |
| Case Outline | -- | 483 | 419AE | 511BR |
| Compliance | -- | PbAHP | PbAHP | PbAHP |
| Container Qty | -- | 3000 | 3000 | 3000 |
| Container Type | -- | REEL | REEL | REEL |
| Control Features | -- | Enable | Soft Start | Enable, Power Good, Soft Start |
| Current Supply Max | -- | 300 µA | 300 µA | 450 µA |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
NCP1937A2DR2GonsemiSimilaronsemi
Pin YesPkg YesElec Mixed
PFC IC Critical Conduction (CRM) 20-SOIC
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