The PAM2804 is a step-down constant current LED driver. When the input voltage is down to lower than LED forward voltage, then PAM2804 goes into LDO mode. The PAM2804 supports a range of input voltages from 2.5V to 6.0V, allowing the use of a single Li+/Li-polymer cell, 3AA or 4AA cell, USB, and other standard power sources. The FB voltage is only 0.1V to achieve high efficiency. PAM2804 employs internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 1µA. Other key features include undervoltage lockout to prevent deep battery discharge of the Li+ battery.
PAM2804特点：
Efficiency up to 93%
180µA(typ) Quiescent Current
Output Current: Up to 1A
Internal Synchronous Rectifier
1.5MHz Switching Frequency
Soft-Start
Undervoltage Lockout
Short LED Protection
Open LED Protection
Thermal Shutdown
5-Pin Small TSOT25 Packages
Pb-Free Package
PAM2804应用：
3AA or 4AA Batteries Powered Flashlight
1 Cell Li-Ion Battery Powered Flashlight
公司:深圳市哲瀚电子科技有限公司
联系人:陈小姐
手机:13714441972
电话:0755-82549527/83259945/13714441972
传真:0755-83259945
地址:深圳市福田区深圳市福田区华强北街道深南中路3006号佳和大厦3C006
