LTC3545/LTC3545-1 - Triple 800mA Synchronous Step-Down Regulator - 2.25MHz

Features
  • Three 800mA Outputs
  • High Efficiency: Up to 95%
  • 2.25V to 5.5V Input Voltage Range
  • Low Ripple (<20mVP-P) Burst Mode Operation IQ: 58uA
  • 2.25MHz Constant Frequency Operation
  • Synchronizable to External 1MHz to 3MHz Clock
  • Power Good Indicators Ease Supply Sequencing
  • 0.6V Reference Allows Low Output Voltages
  • Current Mode Operation/Excellent Transient Response
  • Low Profile 16-Lead 3mm × 3mm QFN Package
Typical Application

Applications
  • Smart Phones
  • Wireless and DSL Modems
  • Digital Still Cameras
  • Portable Instruments
  • Point of Load Regulation
Packaging

Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC3545EUD-1#PBF3x3 QFN-16E$4.43$3.10
LTC3545EUD-1#TRPBF3x3 QFN-16E$3.16
LTC3545EUD#PBF3x3 QFN-16E$4.43$3.10
LTC3545EUD#TRPBF3x3 QFN-16E$3.16
LTC3545IUD-1#PBF3x3 QFN-16I$5.10$3.57
LTC3545IUD-1#TRPBF3x3 QFN-16I$3.63
LTC3545IUD#PBF3x3 QFN-16I$5.10$3.57
LTC3545IUD#TRPBF3x3 QFN-16I$3.63
Demo Boards
Part NumberDescriptionPrice
DC1193A-ALTC3545EUD Demo Board | 2.25V to 5.5VIN, 1.2V@0.8A, 1.5V@0.8A, 1.8V@0.8A; SYNC Pin$150.00
DC1193A-BLTC3545EUD Demo Board | 2.25V to 5.5VIN, 1.2V@0.8A, 1.5V@0.8A, 1.8V@0.8A; PGOOD Pin, Burst Mode Only$150.00
Datasheet
Reliability Data
Press Release
LTspice
Related Product
LTC3545/LTC3545-1 - Triple 800mA Synchronous Step-Down Regulator - 2.25MHz
LTC3545 Package Drawing LTC3545
R415 - Reliability Data
LTC3545 - 采用 3mm x 3mm QFN 封装的三路同步降压型 DC/DC 转换器提供独立的 800mA 输出电流
LTC3545 Footprints and Symbols
LTC3545 Demo Circuit - Triple 800mA 2.25MHz Step-Down Regulator (2.25-5.5V to 1.8V @ 800mA, 1.2A @ 800mA & 1.5V @ 800mA)