LTM4646 - Dual 10A or Single 20A μModule Regulator
Datasheet Documentation
Press Release


Typical Application

LTM4646 Typical Application
LTM4646 Typical Application


The LTM®4646 is a complete dual 10A output switching mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductors, and all supporting components. Operating from an input voltage range of 4.5V to 20V, the LTM4646 supports two outputs each with an output voltage range of 0.6V to 5.5V, set by external resistors. Its high efficiency design delivers up to 10A continuous current for each output. Only a few input and output capacitors are needed.

The device supports frequency synchronization, multiphase operation, high efficiency light load operation and output voltage tracking for supply rail sequencing and has an onboard temperature diode per channel for device temperature monitoring. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability.

Fault protection features include overvoltage and overcurrent protection. The power module is offered in a small footprint 11.25mm × 15mm × 5.01mm BGA package. The LTM4646 is available with SnPb or RoHS compliant terminal finish.


15mm × 11.25mm × 5.01mm BGA

LTM4646 Package Drawing
Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price
LTM4646EY#PBF BGA 88 E $26.93 $18.85
LTM4646IY#PBF BGA 88 I $29.63 $20.74
LTM4646IY BGA 88 I $39.69 $27.78
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC2527A LTM4646 Demo Board | 4.5V ≤ Vin ≤ 20V, Vout1=1.2V@10A, Vout2=1.5V@10A Contact Factory