LTC3406-1.8 - 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT

The LTC®3406 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages of 1.5V and 1.8V. Supply current during operation is only 20µA and drops to <=1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3406 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Automatic Burst Mode® operation increases efficiency at light loads, further extending battery life.

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. Low output voltages are easily supported with the 0.6V feedback reference voltage. The LTC3406 is available in a low profile (1mm) ThinSOT package.

Protected by U.S. Patents, including 6580258, 5481178.

特点

High Efficiency: Up to 96%
Very Low Quiescent Current: Only 20µA During Operation
600mA Output Current
2.5V to 5.5V Input Voltage Range
1.5MHz Constant Frequency Operation
No Schottky Diode Required
Low Dropout Operation: 100% Duty Cycle
0.6V Reference Allows Low Output Voltages
Shutdown Mode Draws
Current Mode Operation for Excellent Line and Load Transient Response
Overtemperature Protected
Low Profile (1mm) ThinSOT™ Package

典型应用

应用

Cellular Telephones
Personal Information Appliances
Wireless and DSL Modems
Digital Still Cameras
MP3 Players
Portable Instruments

封装信息

**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) *
LTC3406ES5-1.8#TRMPBF	SOT-23	E	$2.86	$2.03
LTC3406ES5-1.8#TRPBF	SOT-23	E	$2.86	$2.01

演示电路板


器件型号	描述	价格
DC500A-C	LTC3406ES5-1.8 Demo Board \| 2.7V to 5.5Vin, 1.8Vout @ 600mA(max)	$75.00

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