LTC3624
LTC3624-2

RECOMMENDED FOR NEW DESIGNS

17V, 2A Synchronous Step-Down Regulator with 3.5μA Quiescent Current

Data Sheet Product Selection Table
Part Models
60
1ku List Price
Starting From $3.54
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Part Details

  • Wide VIN Range: 2.7V to 17V
  • Wide VOUT Range: 0.6V to VIN
  • 95% Max Efficiency
  • Low IQ: 3.5μA, Zero-Current Shutdown
  • Constant Frequency (1MHz/2.25MHz)
  • Fixed VOUT Options Available
  • Low Dropout Operation (100% Duty Cycle) with Ultralow IQ
  • 2A Rated Output Current
  • ±1% Output Voltage Accuracy
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Synchronizable to External Clock
  • Pulse-Skipping, Forced Continuous, Burst Mode® Operation
  • Internal Compensation and Soft-Start
  • Overtemperature Protection
  • Compact 8-Lead DFN (3mm × 3mm) Package
LTC3624
LTC3624-2
17V, 2A Synchronous Step-Down Regulator with 3.5μA Quiescent Current
5V VOUT with 800mA Burst Clamp, fSW = 1MHz Efficiency and Power Loss vs Load Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

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RECOMMENDED FOR NEW DESIGNS Prioritized PowerPath™ Controller
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LTC4365
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Tools & Simulations

LTspice 4

Models for the following parts are available in LTspice:

  • LTC3624
  • LTC3624-2

LTpowerCAD 2

Design tools for the following parts are available in LTpowerCAD:

  • LTC3624
  • LTC3624-2
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

Evaluation Kits

eval board
schematic 1
schematic 2
DC2359A

LTC3624 Demo Board (MSOP) | Micropower Synchronous Buck, 2.7V ≤ VIN ≤ 17V, VOUT = 1.2V/1.8V/2.5V/3.3V/5V @ 2A

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Product Details

Demonstration circuit 2359A is a synchronous step-down regulator using LTC3624HMSE monolithic buck regulator in the MSOP-12E package. The DC2359A operates from an input voltage range of 2.7V to 17V and provides and jumper-selectable output voltage range from 1.2V to 5V (VOUT < VIN) at 2A of continuous output current. A user-selectable MODE input pin is provided with the following options: Burst Mode® operation provides the highest efficiency at light loads, while Pulse-Skipping mode (PS) provides the lowest output voltage ripples. Forced Continuous mode (FC) is also available for low EMI and noise interference.

eval board
schematic 3
DC2005A

LTC3624 Demo Board (DFN) | Micropower Sync Buck, 2.7V ≤ VIN ≤ 17V, VOUT = 1.2V/1.8V/2.5V/3.3V/5V/Adjustable @ 2A

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Product Details

Demonstration circuit DC2005A is a synchronous stepdown regulator using an LTC3624 monolithic buck regulator in the 3x3 DFN-8 package. The DC2005A operates from an input voltage range of 2.7V to 17V and provides an adjustable output voltage range from 1.2V to 5V (VOUT < VIN) at 2A of output current. A user-selectable MODE input pin is provided to allow the user to trade off ripple noise for light load efficiency.
DC2359A
LTC3624 Demo Board (MSOP) | Micropower Synchronous Buck, 2.7V ≤ VIN ≤ 17V, VOUT = 1.2V/1.8V/2.5V/3.3V/5V @ 2A
DC2359A - Schematic DC2359A - Demo Board Circuit
DC2005A
LTC3624 Demo Board (DFN) | Micropower Sync Buck, 2.7V ≤ VIN ≤ 17V, VOUT = 1.2V/1.8V/2.5V/3.3V/5V/Adjustable @ 2A
DC2005A - Schematic

Latest Discussions

2 Years Ago
LTC3624 - external SYNC clock signal
2 Years Ago
Function of duplicate pins on LTC3624HMSE-25#PBF
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