Datasheet Texas Instruments LM27402SQ/NOPB
Manufacturer | Texas Instruments |
Series | LM27402 |
Part Number | LM27402SQ/NOPB |
3-20V, Voltage Mode Synchronous Buck Controller with DCR Current Sensing 16-WQFN -40 to 125
Datasheets
LM27402 High-Performance Synchronous Buck Controller With DCR Current Sensing datasheet
PDF, 2.9 Mb, Revision: J, File published: Jul 31, 2015
Extract from the document
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Status
Lifecycle Status | Active (Recommended for new designs) |
Manufacture's Sample Availability | Yes |
Packaging
Pin | 16 |
Package Type | RUM |
Industry STD Term | WQFN |
JEDEC Code | S-PQFP-N |
Package QTY | 1000 |
Carrier | SMALL T&R |
Device Marking | 27402S |
Width (mm) | 4 |
Length (mm) | 4 |
Thickness (mm) | .75 |
Pitch (mm) | .65 |
Max Height (mm) | .8 |
Mechanical Data | Download |
Parametrics
Control Mode | Voltage Mode |
Duty Cycle(Max) | 95 % |
Iout(Max) | 30 A |
Iq(Typ) | 4.5 mA |
Number of Phases | 1 |
Operating Temperature Range | -40 to 125 C |
Package Group | WQFN |
Rating | Catalog |
Regulated Outputs | 1 |
Special Features | Enable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Synchronous Rectification,Tracking |
Switching Frequency(Max) | 1200 kHz |
Switching Frequency(Min) | 200 kHz |
Type | Controller |
Vin(Max) | 20 V |
Vin(Min) | 3 V |
Vout(Max) | 18.6 V |
Vout(Min) | 0.6 V |
Eco Plan
RoHS | Compliant |
Design Kits & Evaluation Modules
- Evaluation Modules & Boards: LM27402POLMODULEVM
LM27402 Evaluation Board
Lifecycle Status: Preview (Device has been announced but is not in production. Samples may or may not be available) - Evaluation Modules & Boards: LM27402SQEVAL
LM27402 Evaluation Board
Lifecycle Status: Active (Recommended for new designs)
Application Notes
- AN-2060 LM27402 Current Limit Application Circuits (Rev. A)PDF, 89 Kb, Revision: A, File published: May 6, 2013
Sensing the inductor DCR voltage can be an accurate and lossless technique of obtaining current information in DC/DC regulators. The absence of a series current sense resistor permits high current and high efficiency designs at a lower cost and higher density. Inductor DCR sensing also allows continuous monitoring of the inductor current as opposed to MOSFET RDS(ON) sensing that usually samples th - Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, File published: Jul 21, 2016
Model Line
Series: LM27402 (4)
- LM27402MH/NOPB LM27402MHX/NOPB LM27402SQ/NOPB LM27402SQX/NOPB
Manufacturer's Classification
- Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Down (Buck) > Buck Controller (External Switch)