LT3503 - 1A, 2.2MHz Step-Down Switching Regulator in 2mm x 3mm DFN

Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The low current (<2µA) shutdown mode provides output disconnect, enabling easy power management in battery-powered systems.

特点
  • Wide Input Range: 3.6V to 20V
  • 5V at 1.2A from 11V to 18V Input
  • 5V at 1A from 7.2V to 18V Input
  • 3.3V at 1.2A from 8.5V to 12V Input
  • 3.3V at 1A from 5.5V to 12V Input
  • Fixed Frequency Operation: 2.2MHz
  • Output Adjustable Down to 780mV
  • Short-Circuit Robust
  • Uses Tiny Capacitors and Inductors
  • Soft-Start
  • Internally Compensated
  • Low Shutdown Current: <2µA
  • Low VCESAT Switch: 400mV at 1A
  • Thermally Enhanced, 2mm x 3mm 6-Pin DFN Low Profile Package
典型应用
LT3503 Typical Application
LT3503 Typical Application
应用
  • Automotive Battery Regulation
  • Industrial Control Supplies
  • Wall Transformer Regulation
  • Distributed Supply Regulation
  • Battery-Powered Equipment
封装信息
LT3503 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) *
LT3503EDCB#PBF2x3 DFN-6E$3.21
LT3503EDCB#TRMPBF2x3 DFN-6E$3.26$2.30
LT3503EDCB#TRPBF2x3 DFN-6E$3.21$2.25
演示电路板
器件型号描述价格
DC1050ALT3503EDCB Demo Board | 4.5 ≤ VIN ≤ 20V, VOUT = 3.3V @ 1.2A$75.00
数据表
可靠性数据
产品新闻发布
CAD 符号
LTspice
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LT3503 - 1A, 2.2MHz Step-Down Switching Regulator in 2mm x 3mm DFN
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LT3503 Footprints and Symbols
LT3503 Demo Circuit - 1.2A, 2.25MHz Step-down Regulator (12V to 3.3V @ 1.2A)