LED2000 3 A monolithic step-down current source with synchronous rectification

The LED2000 is a step-down switching regulator with 3.7 A (min.) current limited embedded power MOSFET, so it is able to deliver up to 3 A current to the load depending on the application conditions.

The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN.

Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

The HSOP package with exposed pad allows reducing the RthJAdown to 40 °C/W

技术特性

3 A DC output current
4.5 V to 38 V input voltage
Output voltage adjustable from 0.6 V
250 kHz switching frequency, programmable up to 1 MHz
Internal soft-start and enable
Low dropout operation: 100% duty cycle
Voltage feed-forward
Zero load current operation
Overcurrent and thermal protection
HSOP8 package
Guarantee overtemperature range (-40 °C to 125 °C)

应用原理图

LED2000 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
LED2000PUR	Active		1000	VFDFPN 8 4x4x1.0	Tape And Reel	-40 °C to 125 °C
LED2000DR	Active		1000	SO-8	Tape And Reel	-40 °C to 125 °C

DATASHEET

描述	版本	大小
LED2000 : DS9163: 3 A monolithic step-down current source with synchronous rectification	2	1743KB

DESIGN NOTES

描述	版本	大小
DN0011: ST1S03 alternative topology: Using a buck in a negative buck-boost configuration	1.0	360KB