PowTech PT4404
PT4404 is a low dropout current regulator with an adjustable constant sink current sink of up to 350mA. The dropout voltage at 350mA is typically 110mVwith the quiescent current of only 100μA. The enable pin is used to shutdown the chip or control the LED brightness with a PWM signal.| Part No. | PT4404 |
|---|---|
| Datasheet | PT4404 Download |
| Manufacturer |  PowTech |
| Description | Low Dropout Adjustable 350mA Current Regulator |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The built-in thermal shutdown protection shuts down the chip when the chip temperature exceeds 150oC. An external resistor can be used to set the output current level. The PT4404 is packaged with SOT-89-5.FEATURES
z Supply voltage range: 2.7V-5.5V z Current sink set by external resistor z 110mV Low Dropout voltage for 350mA current output z 100uA quiescent current z 0.1uA shutdown current z Built-in thermal shutdown protection z SOT-89-5 Package APPLICATION z Power LED Driver z Constant current sink ORDERING INFORMATION PACKAGE SOT-89-5 TEMPERATURE RANGE -40 oC to 85 oC ORDERING PART NUMBER PT4404E89E Note: xxxxxX Assembly Factory Code Lot Number TRANSPORMEDIA Tape and Reel 1000 units MARKING PT4404 xxxxxX TYPICAL APPLICATION CIRCUIT VDD≤5.5V: VDD>5.5V: 2.7~ 5.5V V VDD Out EN Radj GND RADJ 91k (IOUT= 350m ) PT4404 China Resources Powtech (Shanghai) Limited PT4404_DS Rev EN_2.2 Page1 PIN ASSIGNMENT 5 RADJ 4 EN Out GND VDD 123 SOT-89-5 PT4404 Low Dropout Adjustable 3...
