LTC3564

PRODUCTION

2.25MHz, 1.25A Synchronous Step-Down Regulator

Data Sheet
Part Models
8
1ku List Price
Starting From $2.35
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Part Details

  • High Efficiency: Up to 96%
  • Very Low Quiescent Current: Only 20μA
  • 1.25A Output Current
  • 2.5V to 5.5V Input Voltage Range
  • 2.25MHz Constant Frequency Operation
  • No Schottky Diode Required
  • Low Dropout Operation: 100% Duty Cycle
  • 0.6V Reference Allows Low Output Voltages
  • Shutdown Mode Draws ≤ 1μA Supply Current
  • Current Mode Operation for Excellent Line and
  • Load Transient Response
  • Overtemperature Protected
  • Low Profile (1mm) ThinSOT™ and 6-Lead (2mm × 3mm) DFN Packages
LTC3564
2.25MHz, 1.25A Synchronous Step-Down Regulator
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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Hardware Ecosystem

Parts Product Life Cycle Description
Digital Power System Managers 1
LTC2974
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Multiple Output Buck Regulators 1
LTC3880
RECOMMENDED FOR NEW DESIGNS Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
Single-Supply Monitors 1
LTC2935
PRODUCTION Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTC3564

LTpowerCAD

Design tools for the following parts are available in LTpowerCAD:

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.

Evaluation Kits

eval board
schematic 1
DC1343A

LTC3564DCB6 Demo Board (DFN) | 2.25MHz, 2.5V ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V @ 1.25A

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Product Details

Demonstration circuit DC1343A is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture featuring LTC3564 in the 2×3 DFN-6 package. The demo board features a 2.5V to 5.5V input voltage range and provides a jumper-selectable 1.2V/1.5V/1.8V output at 1.25A. Its high switching frequency of 2.25MHz allows the use of small surface mount inductors and capacitors.


 


eval board
schematic 2
DC1158A

LTC3564ES5 Demo Board (TSOT) | 2.25MHz, 2.5V ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V @ 1.25A

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Product Details

Demonstration circuit DC1158A is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture featuring LTC3564 in the ThinSOT package. The demo board features a 2.5V to 5.5V input voltage range and provides a jumper-selectable 1.2V/1.5V/1.8V output at 1.25A. Its high switching frequency of 2.25MHz allows the use of small surface mount inductors and capacitors.
DC1343A
LTC3564DCB6 Demo Board (DFN) | 2.25MHz, 2.5V ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V @ 1.25A
DC1343A - Schematic
DC1158A
LTC3564ES5 Demo Board (TSOT) | 2.25MHz, 2.5V ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V @ 1.25A
DC1158A - Schematic

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