Support software
NONSYNC-BOOST-FET-LOSS-CALC — NONSYNC BOOST FET LOSS Calculator
MOSFET power loss calculator for non-synchronous boost converter
CSD85312Q3E
20-V, N channel NexFET™ power MOSFET, dual common source SON 3 mm x 3, 14 mOhm
Data sheet
CSD85312Q3E
- Common Source Connection
- Low Drain to Drain On-Resistance
- Space Saving SON 3.3 × 3.3 mm Plastic
Package - Optimized for 5 V Gate Drive
- Low Thermal Resistance
- Avalanche Rated
- Pb-Free Terminal Plating
- RoHS Compliant
- Halogen Free
The CSD85312Q3E is a 20 V common-source, dual N-channel device designed for adaptor or USB input protection. This SON 3.3 × 3.3 mm device has low drain to drain on-resistance that minimizes losses and offers low component count for space constrained multi-cell battery charging applications.
Technical documentation
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View all 9 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | Dual 20 V N-Channel NexFET™ Power MOSFETs, CSD85312Q3E datasheet | 08 Nov 2013 | |
| Application brief | Estimating Leakage Currents of Power MOSFETs | PDF | HTML | 31 Oct 2025 | |
| Application note | MOSFET Support and Training Tools (Rev. G) | PDF | HTML | 27 Oct 2025 | |
| Application note | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 25 Mar 2024 | |
| Application note | Using MOSFET Transient Thermal Impedance Curves In Your Design | PDF | HTML | 18 Dec 2023 | |
| Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 06 Dec 2023 | |
| Application note | Using MOSFET Safe Operating Area Curves in Your Design | PDF | HTML | 13 Mar 2023 | |
| Application brief | Tips for Successfully Paralleling Power MOSFETs | PDF | HTML | 31 May 2022 | |
| Application note | Ringing Reduction Techniques for NexFET High Performance MOSFETs | 16 Nov 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS25830Q1EVM-040 — TPS25830-Q1 evaluation module for USB Type-C® and BC1.2 with cable compensation and current limit
The TPS25830Q1EVM-040 is an evaluation module (EVM) for USB Type-C® and BC1.2 5-V 3.5-A output, 36-V input synchronous buck with cable compensation. The EVM has power terminal block, USB Type-A and USB Type-C connector for device charging and data communication. The cable compensation, (...)
User guide: PDF
Evaluation board
TPS25831Q1EVM-062 — TPS25831-Q1 USB Type-C and BC1.2 Synchronous Buck EVM with cable compensation and current limit
What you need to get started:
Step 1: Order hardware
Step 3: Download design guide lines and application notes
Step 4: Download (...)
Step 1: Order hardware
- Also sample the TPS25831-Q1 and TPS25833-Q1
Step 3: Download design guide lines and application notes
Step 4: Download (...)
User guide: PDF
Calculation tool
SYNC-BUCK-FET-LOSS-CALC — Power Loss Calculation Tool for Synchronous Buck Converter
Quickly trade off size, cost and performance to select the optimal MOSFET based on application conditions.
Supported products & hardware
Reference designs
PMP40725 — CISPR 25 Class 5 400-kHz rated 12-W automotive USB Type-A charger reference design
This reference design is an EMI-optimized design for automotive USB Type-A charger with single 12-W output. The TPS25846-Q1 is used as DC-DC regulator and port controller. The switching frequency is 400kHz. The front-end filter is designed and PCB layout is optimized to pass stringent CISPR 25 (...)
Reference designs
PMP40544 — Automotive USB Type-A charger reference design with 3-m USB-IF near-end compliant
This reference design is for an automotive USB Type-A charger with 3 meters USB-IF near-end compliant. The TPS25840-Q1 is used as DC-DC regulator and data switch and TUSB217-Q1 is used as high speed signal conditioner to improve signal quality. The efficiency of the solution is 93.3% at a 12-W (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSON (DPA) | 8 | Ultra Librarian |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Information included:
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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