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

产品特点 Features
  • 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
应用
  • Cellular Telephones
  • Wireless and DSL Modems
  • Digital Cameras
  • MP3 Players
  • Portable Instruments
典型应用图
LTC3410-1.875 典型应用
参数
LTC3410-1.875 参数
LTC3410-1.875 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LTC3410BESC6#PBF SC70 6 E $2.21 
LTC3410BESC6#TR SC70 6 E $2.21  $1.56 
LTC3410BESC6#TRM SC70 6 E $2.21  $1.58 
LTC3410BESC6#TRMPBF SC70 6 E $2.21  $1.58 
LTC3410BESC6#TRPBF SC70 6 E $2.21  $1.56 
LTC3410BESC6-1.2#PBF SC70 6 E $2.21 
LTC3410BESC6-1.2#TR SC70 6 E $2.21  $1.56 
LTC3410BESC6-1.2#TRM SC70 6 E $2.21  $1.61 
LTC3410BESC6-1.2#TRMPBF SC70 6 E $2.21  $1.61 
LTC3410BESC6-1.2#TRPBF SC70 6 E $2.21  $1.56 
LTC3410BESC6-1.5#PBF SC70 6 E $2.21 
LTC3410BESC6-1.5#TR SC70 6 E $2.21  $1.56 
LTC3410BESC6-1.5#TRM SC70 6 E $2.21  $1.61 
LTC3410BESC6-1.5#TRMPBF SC70 6 E $2.21  $1.61 
LTC3410BESC6-1.5#TRPBF SC70 6 E $2.21  $1.56 
LTC3410BESC6-1.8#PBF SC70 6 E $2.21 
LTC3410BESC6-1.8#TR SC70 6 E $2.21  $1.56 
LTC3410BESC6-1.8#TRM SC70 6 E $2.21  $1.61 
LTC3410BESC6-1.8#TRMPBF SC70 6 E $2.21  $1.61 
LTC3410BESC6-1.8#TRPBF SC70 6 E $2.21  $1.56 
LTC3410BESC6-1.875#PBF SC70 6 E $2.21 
LTC3410BESC6-1.875#TR SC70 6 E $2.21  $1.56 
LTC3410BESC6-1.875#TRM SC70 6 E $2.21  $1.61 
LTC3410BESC6-1.875#TRMPBF SC70 6 E $2.21  $1.61 
LTC3410BESC6-1.875#TRPBF SC70 6 E $2.21  $1.56 
LTC3410ESC6 SC70 6 E $2.21 
LTC3410ESC6#PBF SC70 6 E $2.21 
LTC3410ESC6#TR SC70 6 E $2.21  $1.56 
LTC3410ESC6#TRM SC70 6 E $2.21  $1.58 
LTC3410ESC6#TRMPBF SC70 6 E $2.21  $1.58 
LTC3410ESC6#TRPBF SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.2#PBF SC70 6 E $2.21 
LTC3410ESC6-1.2#TR SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.2#TRM SC70 6 E $2.21  $1.61 
LTC3410ESC6-1.2#TRMPBF SC70 6 E $2.21  $1.61 
LTC3410ESC6-1.2#TRPBF SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.5#PBF SC70 6 E $2.21 
LTC3410ESC6-1.5#TR SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.5#TRM SC70 6 E $2.21  $1.61 
LTC3410ESC6-1.5#TRMPBF SC70 6 E $2.21  $1.61 
LTC3410ESC6-1.5#TRPBF SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.65#PBF SC70 6 E $2.21 
LTC3410ESC6-1.65#TR SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.65#TRM SC70 6 E $2.21  $1.61 
LTC3410ESC6-1.65#TRMPBF SC70 6 E $2.21  $1.61 
LTC3410ESC6-1.65#TRPBF SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.8#PBF SC70 6 E $2.21 
LTC3410ESC6-1.8#TR SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.8#TRM SC70 6 E $2.21  $1.61 
LTC3410ESC6-1.8#TRMPBF SC70 6 E $2.21  $1.61 
LTC3410ESC6-1.8#TRPBF SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.875 SC70 6 E $2.21 
LTC3410ESC6-1.875#PBF SC70 6 E $2.21 
LTC3410ESC6-1.875#TR SC70 6 E $2.21  $1.56 
LTC3410ESC6-1.875#TRM SC70 6 E $2.21  $1.58 
LTC3410ESC6-1.875#TRMPBF SC70 6 E $2.21  $1.58 
LTC3410ESC6-1.875#TRPBF SC70 6 E $2.21  $1.56 
LTC3410-1.875 数据手册及相关资料下载
  1. 数据手册(英文) : LTC3410-1.875 - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70.PDF
  2. 可靠性数据 : R415 Reliability Data .PDF