LTC3410 - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70


  • High Efficiency: Up to 96%
  • Low Ripple (20mVP-P) Burst Mode Operation: IQ 26µA
  • Low Output Voltage Ripple
  • 300mA Output Current at VIN = 3V
  • 380mA Minimum Peak Switch Current
  • 2.5V to 5.5V Input Voltage Range
  • 2.25MHz Constant Frequency Operation
  • No Schottky Diode Required
  • Low Dropout Operation: 100% Duty Cycle
  • Stable with Ceramic Capacitors
  • 0.8V Reference Allows Low Output Voltages
  • Shutdown Mode Draws < 1µA Supply Current
  • ±2% Output Voltage Accuracy
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Overtemperature Protected
  • Available in Low Profile SC70 Package

Typical Application

LTC3410 Typical Application
LTC3410 Typical Application


The LTC3410 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in adjustable and fixed output voltage versions. Supply current during operation is only 26µA, dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3410 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.

Switching frequency is internally set at 2.25MHz, allowing the use of small surface mount inductors and capacitors. The LTC3410 is specifically designed to work well with ceramic output capacitors, achieving very low output voltage ripple and a small PCB footprint.

The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.8V feedback reference voltage. The LTC3410 is available in a tiny, low profile SC70 package.

  Vout Burst Mode
LTC3410 Adj.  Down To 0.8V Yes
LTC3410B Adj.  Down To 0.8V No
LTC3410-1.875 Fixed 1.875V Yes


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTC3410ESC6-1.2#PBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.2#TRMPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.2#TRPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.5#PBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.5#TRMPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.5#TRPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.65#PBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.65#TRMPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.65#TRPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.8#PBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.8#TRMPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6-1.8#TRPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6#PBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6#TRMPBF SC-70 SC6 E 05-08-1638 Yes
LTC3410ESC6#TRPBF SC-70 SC6 E 05-08-1638 Yes

LTC3410 Package Drawing
LTC3410 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LTC3410ESC6-1.2#PBF SC-70 E $2.21 Yes
LTC3410ESC6-1.2#TRMPBF SC-70 E $2.21 $1.61 Yes
LTC3410ESC6-1.2#TRPBF SC-70 E $2.21 $1.56 Yes
LTC3410ESC6-1.5#PBF SC-70 E $2.21 Yes
LTC3410ESC6-1.5#TRMPBF SC-70 E $2.21 $1.61 Yes
LTC3410ESC6-1.5#TRPBF SC-70 E $2.21 $1.56 Yes
LTC3410ESC6-1.65#PBF SC-70 E $2.21 Yes
LTC3410ESC6-1.65#TRMPBF SC-70 E $2.21 $1.61 Yes
LTC3410ESC6-1.65#TRPBF SC-70 E $2.21 $1.56 Yes
LTC3410ESC6-1.8#PBF SC-70 E $2.21 Yes
LTC3410ESC6-1.8#TRMPBF SC-70 E $2.21 $1.61 Yes
LTC3410ESC6-1.8#TRPBF SC-70 E $2.21 $1.56 Yes
LTC3410ESC6#PBF SC-70 E $2.21 Yes
LTC3410ESC6#TRMPBF SC-70 E $2.21 $1.58 Yes
LTC3410ESC6#TRPBF SC-70 E $2.21 $1.56 Yes
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* 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
DC870A-A LTC3410ESC6 Demo Board | 2.25MHz, 2.25V ≤ VIN ≤ 5.5V, Vout = 1.8V @ 300mA $75.00
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Click here to view our complete list of demo boards


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