Space & Harsh Environment Extended Temperature Plastic (H & MP) Extended Temperature (H & MP) Switching Regulators
Power Management Switching Regulator Step-Down (Buck) Regulators Micropower Buck
 Power Management Switching Regulator Step-Down (Buck) Regulators Internal Power Switch Buck
 Power Management Switching Regulator Step-Down (Buck) Regulators High Input Voltage Buck

LTC3880 - Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management

LTC4359 - Ideal Diode Controller with Reverse Input Protection

LTC3630 - High Efficiency, 65V 500mA Synchronous Step-Down Converter

Features

  • Wide Operating Input Voltage Range: 4V to 65V
  • Synchronous Operation for Highest Efficiency
  • Internal High Side and Low Side Power MOSFETs
  • No Compensation Required
  • Adjustable 50mA to 500mA Maximum Output Current
  • Low Dropout Operation: 100% Duty Cycle
  • Low Quiescent Current: 12μA
  • Wide Output Range: 0.8V to VIN
  • 0.8V ±1% Feedback Voltage Reference
  • Precise RUN Pin Threshold
  • Internal and External Soft-Start
  • Programmable 1.8V, 3.3V, 5V or Adjustable Output
  • Few External Components Required
  • Low Profile (0.75mm) 3mm × 5mm DFN and Thermally-Enhanced MSE16 Packages

Typical Application

LTC3630 Typical Application
LTC3630 Typical Application

Description

The LTC®3630 is a high efficiency step-down DC/DC converter with internal high side and synchronous power switches that draws only 12μA typical DC supply current while maintaining a regulated output voltage at no load.

The LTC3630 can supply up to 500mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency and for reducing output ripple and component size. The LTC3630’s combination of Burst Mode® operation, integrated power switches, low quiescent current, and programmable peak current limit provides high efficiency over a broad range of load currents.

With its wide input range of 4V to 65V, the LTC3630 is a robust converter suited for regulating a wide variety of power sources. Additionally, the LTC3630 includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment. A feedback comparator output enables multiple LTC3630s to be paralleled in higher current applications.

The LTC3630 is available in the thermally-enhanced 3mm × 5mm DFN and the MSE16 packages.

Packaging

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

DFN-16, MS-16

LTC3630 Package Drawing
LTC3630 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC3630EDHC#PBF DFN 16 E $4.57 $3.20 View
LTC3630EDHC#TRPBF DFN 16 E $3.26 View
LTC3630EMSE#PBF MSOP 16 E $4.57 $3.20 View
LTC3630EMSE#TRPBF MSOP 16 E $3.26 View
LTC3630HDHC#PBF DFN 16 H $5.43 $3.80 View
LTC3630HDHC#TRPBF DFN 16 H $3.86 View
LTC3630HMSE#PBF MSOP 16 H $5.43 $3.80 View
LTC3630HMSE#TRPBF MSOP 16 H $3.86 View
LTC3630IDHC#PBF DFN 16 I $5.07 $3.55 View
LTC3630IDHC#TRPBF DFN 16 I $3.61 View
LTC3630IMSE#PBF MSOP 16 I $5.07 $3.55 View
LTC3630IMSE#TRPBF MSOP 16 I $3.61 View
LTC3630MPDHC#PBF DFN 16 MP $15.31 $10.72 View
LTC3630MPDHC#TRPBF DFN 16 MP $10.78 View
LTC3630MPMSE#PBF MSOP 16 MP $15.31 $10.72 View
LTC3630MPMSE#TRPBF MSOP 16 MP $10.78 View
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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
DC1849A LTC3630EMSE Demo Board I High Efficiency 65V 500mA Synchronous Step-Down Converter $150.00
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Click here to view our complete list of demo boards

Applications

  • Industrial Control Supplies
  • Medical Devices
  • Distributed Power Systems
  • Portable Instruments
  • Battery-Operated Devices
  • Automotive
  • Avionics

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LTC3630

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