Home Power management MOSFETs
Home
Power management
MOSFETs

CSD85312Q3E

ACTIVE

20-V, N channel NexFET™ power MOSFET, dual common source SON 3 mm x 3, 14 mOhm

Order now
Data sheet

CSD85312Q3E

ACTIVE
Order now

Product details

VDS (V) 20 VGS (V) 10 Type N-channel Configuration Dual Common Source Rds(on) at VGS=4.5 V (max) (mΩ) 14 VGSTH typ (typ) (V) 1.1 QG (typ) (nC) 11.7 QGD (typ) (nC) 1.6 QGS (typ) (nC) 3.5 ID - silicon limited at TC=25°C (A) 39 ID - package limited (A) 39 Logic level Yes Rating Catalog Operating temperature range (°C) -55 to 150
VDS (V) 20 VGS (V) 10 Type N-channel Configuration Dual Common Source Rds(on) at VGS=4.5 V (max) (mΩ) 14 VGSTH typ (typ) (V) 1.1 QG (typ) (nC) 11.7 QGD (typ) (nC) 1.6 QGS (typ) (nC) 3.5 ID - silicon limited at TC=25°C (A) 39 ID - package limited (A) 39 Logic level Yes Rating Catalog Operating temperature range (°C) -55 to 150
VSON (DPA) 8 10.89 mm² (3.3 mm × 3.3 mm)
  • 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
  • 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.

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.
filter Find other MOSFETs
Download View video with transcript Video

Technical documentation

No results found. Please clear your search and try again.
View all 9
Top documentation Type Title Format options Date
* Data sheet Dual 20 V N-Channel NexFET™ Power MOSFETs, CSD85312Q3E datasheet Nov 8, 2013
Application brief Estimating Leakage Currents of Power MOSFETs PDF | HTML Oct 31, 2025
Application note MOSFET Support and Training Tools (Rev. G) PDF | HTML Oct 27, 2025
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML Mar 25, 2024
Application note Using MOSFET Transient Thermal Impedance Curves In Your Design PDF | HTML Dec 18, 2023
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML Dec 6, 2023
Application note Using MOSFET Safe Operating Area Curves in Your Design PDF | HTML Mar 13, 2023
Application brief Tips for Successfully Paralleling Power MOSFETs PDF | HTML May 31, 2022
Application note Ringing Reduction Techniques for NexFET High Performance MOSFETs Nov 16, 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
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
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 2: Download the EVM User guide 

Step 3: Download design guide lines and application notes
Step 4: Download (...)
User guide: PDF
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Support software

NONSYNC-BOOST-FET-LOSS-CALC — NONSYNC BOOST FET LOSS Calculator

MOSFET power loss calculator for non-synchronous boost converter
Supported products & hardware
Simulation model

CSD85312Q3E Unencrypted PSpice Model (Rev. B)

SLPM095B.ZIP (4 KB) - PSpice model
Supported products & hardware
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 design

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 (...)
Supported products & hardware
Reference design

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 (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VSON (DPA) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos