LTC3410-1.875 - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70

The LTC3410-1.875 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 26µA, dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3410-1.875 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 LTC3410-1.875 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. The LTC3410-1.875 is available in a tiny, low profile SC70 package.

特点
  • High Efficiency: Up to 93%
  • Very Low Quiescent Current: Only 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
  • Stable with Ceramic Capacitors
  • 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
典型应用
LTC3410-1.875 Typical Application
LTC3410-1.875 Typical Application
应用
  • Cellular Telephones
  • Wireless and DSL Modems
  • Digital Cameras
  • MP3 Players
  • Portable Instruments
封装信息
LTC3410-1.875 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC3410ESC6-1.875#PBFSC-70E$2.21
LTC3410ESC6-1.875#TRMPBFSC-70E$2.21$1.58
LTC3410ESC6-1.875#TRPBFSC-70E$2.21$1.56
数据表
可靠性数据
CAD 符号
相关产品
LTC3410-1.875 - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70
R415 - Reliability Data
LTC3410-1.875 Footprints and Symbols