qx7137 is an led constant current driver with extremely low quiescent current and low dropout voltage.
qx7137 only needs an external resistor and an nmos tube to form a complete led constant current drive circuit. the output current can be adjusted by adjusting the external resistor. the adjustable range of the output current is 100ma
the qx7137 has extremely low static power consumption and is particularly suitable for handheld led lighting driver applications.
qx7137 has a built-in enable control circuit, which can control the led switch by adding an external enable signal to the en pin. when en is connected to a high level, the drv pin output is high; when en is low, the drv output is low; the en pin is not allowed to float.
qx7137 adopts sot-23-5 package.
ø power supply voltage: 2.7v ~ 5.5v
ø very low quiescent current: 26ua
ø output current: 100ma- 3.0a
ø output current accuracy: better than ± 5%
ø only need to connect a resistor and a mos tube
ø the voltage can be expanded to more than 400v, and the current can be expanded to 3.0a
stay tuned for updates!
ø linear led lighting driver
ø low-power portable lighting equipment