LTC3406-1.2 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT

The LTC®3406-1.2 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation with only 20µA drops <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3406-1.2 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Automatic Burst Modeoperation further increases efficiency at light loads.

Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. The LTC3406-1.2 is available in a low profile (1mm) ThinSOT package.

Protected by U.S. Patents including 5481178, 6580258, 6304066, 6127815, 6498466, 6611131

产品特点 Features
  • High Efficiency: Up to 90%
  • Very Low Quiescent Current: Only 20µA
  • 600mA Output Current at VIN = 3V
  • 2.5V to 5.5V Input Voltage Range
  • 1.5MHz Constant Frequency Operation
  • No Schottky Diode Required
  • Shutdown Mode Draws < 1µA Supply Current
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Overtemperature Protected
  • Low Profile (1mm) ThinSOTTM Package
应用
  • Cellular Telephones
  • Personal Information Appliances
  • Wireless and DSL Modems
  • Digital Still Cameras
  • MP3 Players
  • Portable Instruments
典型应用图
LTC3406-1.2 典型应用
参数
LTC3406-1.2 参数
LTC3406-1.2 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) *
LTC3406ABES5#TRMPBF SOT 5 E $2.61  $1.88 
LTC3406ABES5#TRPBF SOT 5 E $2.61  $1.83 
LTC3406ABES5-2#TRMPBF SOT 5 E $2.61  $1.88 
LTC3406ABES5-2#TRPBF SOT 5 E $2.61  $1.83 
LTC3406AES5#TRMPBF SOT 5 E $2.61  $1.88 
LTC3406AES5#TRPBF SOT 5 E $2.61  $1.83 
LTC3406AIS5#PBF SOT 5 I $3.00 
LTC3406AIS5#TRMPBF SOT 5 I $3.00  $2.15 
LTC3406AIS5#TRPBF SOT 5 I $3.00  $2.10 
LTC3406B-2ES5 SOT 5 E $3.07 
LTC3406B-2ES5#TR SOT 5 E $3.07  $2.16 
LTC3406B-2ES5#TRM SOT 5 E $3.07  $2.18 
LTC3406B-2ES5#TRMPBF SOT 5 E $3.07  $2.18 
LTC3406B-2ES5#TRPBF SOT 5 E $3.07  $2.16 
LTC3406BES5 SOT 5 E $2.86 
LTC3406BES5#TR SOT 5 E $2.86  $2.01 
LTC3406BES5#TRM SOT 5 E $2.86  $2.03 
LTC3406BES5#TRMPBF SOT 5 E $2.86  $2.03 
LTC3406BES5#TRPBF SOT 5 E $2.86  $2.01 
LTC3406BES5-1.2 SOT 5 E $2.86 
LTC3406BES5-1.2#TR SOT 5 E $2.86  $2.01 
LTC3406BES5-1.2#TRM SOT 5 E $2.86  $2.03 
LTC3406BES5-1.2#TRMPBF SOT 5 E $2.86  $2.03 
LTC3406BES5-1.2#TRPBF SOT 5 E $2.86  $2.01 
LTC3406BES5-1.5 SOT 5 E $2.86 
LTC3406BES5-1.5#TR SOT 5 E $2.86  $2.01 
LTC3406BES5-1.5#TRM SOT 5 E $2.86  $2.03 
LTC3406BES5-1.5#TRMPBF SOT 5 E $2.86  $2.03 
LTC3406BES5-1.5#TRPBF SOT 5 E $2.86  $2.01 
LTC3406BES5-1.8 SOT 5 E $2.86 
LTC3406BES5-1.8#TR SOT 5 E $2.86  $2.01 
LTC3406BES5-1.8#TRM SOT 5 E $2.86  $2.03 
LTC3406BES5-1.8#TRMPBF SOT 5 E $2.86  $2.03 
LTC3406BES5-1.8#TRPBF SOT 5 E $2.86  $2.01 
LTC3406ES5 SOT 5 E $2.86 
LTC3406ES5#PBF SOT 4 E $2.86 
LTC3406ES5#TR SOT 5 E $2.86  $2.01 
LTC3406ES5#TRM SOT 5 E $2.86  $2.03 
LTC3406ES5#TRMPBF SOT 5 E $2.86  $2.03 
LTC3406ES5#TRPBF SOT 5 E $2.86  $2.01 
LTC3406ES5-1.2 SOT 5 E $2.86 
LTC3406ES5-1.2#TR SOT 5 E $2.86  $2.01 
LTC3406ES5-1.2#TRM SOT 5 E $2.86  $2.03 
LTC3406ES5-1.2#TRMPBF SOT 5 E $2.86  $2.03 
LTC3406ES5-1.2#TRPBF SOT 5 E $2.86  $2.01 
LTC3406ES5-1.5 SOT 5 E $2.86 
LTC3406ES5-1.5#TR SOT 5 E $2.86  $2.01 
LTC3406ES5-1.5#TRM SOT 5 E $2.86  $2.03 
LTC3406ES5-1.5#TRMPBF SOT 5 E $2.86  $2.03 
LTC3406ES5-1.5#TRPBF SOT 5 E $2.86  $2.01 
LTC3406ES5-1.8 SOT 5 E $2.86 
LTC3406ES5-1.8#TR SOT 5 E $2.86  $2.01 
LTC3406ES5-1.8#TRM SOT 5 E $2.86  $2.03 
LTC3406ES5-1.8#TRMPBF SOT 5 E $2.86  $2.03 
LTC3406ES5-1.8#TRPBF SOT 5 E $2.86  $2.01 
LTC3406-1.2 数据手册及相关资料下载
  1. 数据手册(英文) : LTC3406-1.2 - 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT.PDF
  2. 设计要点 (英文) : DN256 - 1.4MHz Switching Regulator Draws Only 10µA Supply Current.PDF
  3. 可靠性数据 : R415 Reliability Data .PDF