onsemi NCP81239AMNTXG Microcontrollers
Switching Controller
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
NCP81239AMNTXG
Detailed Description
Switching Controller
Package
32-VFQFN Exposed Pad
Lifecycle Status
Not For New Designs
Datasheet
NCP81239AMNTXG Datasheet
Quick Jump:
Technical Specifications
onsemi NCP81239AMNTXG Microcontrollers technical specifications.
General
Series
NCP81239A
RoHS
Yes
Package / Case
32-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Supply Voltage
4.5V ~ 28V
Lifecycle Status
Not For New Designs
Switching Frequency
150kHz ~ 1.2MHz
Synchronous Rectifier
No
Clock Sync
Yes
Alternate Parts Comparison (NCP81239AMNTXG vs NCP500SN33T1G vs NCP718ASN180T1G vs NCP45525IMNTWG-L)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 32-VFQFN Exposed Pad | SOT-23-5 Thin, TSOT-23-5 | SOT-23-5 Thin, TSOT-23-5 | 8-VFDFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 100°C | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) |
| RoHS | Yes | Compliant | Compliant | Yes |
| Lifecycle Status | Not For New Designs | Production | Production | Obsolete |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | High Side |
| Output Type | PWM Signal | Fixed | Fixed | N-Channel |
| Package | QFN-32 | TSSOP | VSSOP | DFN8 |
| Control Features | Current Limit, Enable, Frequency Control, On Time Control, Ramp, Soft Start | Enable | Soft Start | -- |
| Output Current | 97 mA | 150 mA | 300 mA | -- |
| Output Voltage | 5 V | 3.3 V | 1.8 V | -- |
| 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
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