The tle6389 step-down DC-DC switch controller has high efficiency in the whole load range of 1mA to 2.5A - keshijin mall

​  unique PWM/PFM The control scheme has up to 100% Duty cycle , To achieve a very low differential pressure . This control scheme has no minimum load requirements , Reduce the light load current to 120μA, The specific value depends on the external component size . Besides , Adjustable model TLE6389-2GV It can be turned off by enabling the input , Reduce the input current to <2μA.TLE6389 The step-down controller drives the external P passageway MOSFET, Support flexible design with output power up to 12.5W Application . High switching frequency and continuous conduction mode , Support the use of small surface mount inductors . At the same time, the output capacitance requirements are reduced , Minimize PC Plate area , Reduce system costs . The output voltage is preset to 5V（TLE6389-2GV50 and TLE6389-3GV50）,TLE6389-2GV The output voltage is adjustable .TLE6389-2GV50 The model has reset function , The threshold is between 4.5V and 4.8V Between , Including a small amount of hysteresis , Typical hysteresis values are 50mV. stay TLE6389-3GV50 In the model , The typical value of device reset is 1V The lag of . all TLE6389 The input voltage can be as high as 60V.

 

Feature description

• Input voltage range <5V To 60V

• Output voltage ：5V Fix

• Output voltage accuracy : 3%

• Output current up to 2.3A

• 100% Maximum duty cycle

• The static current under low load is less than 120μA

• Fixed switching frequency 360kHz

• External clock frequency synchronization input

• Current mode control scheme

• Integrated output undervoltage reset circuit （ threshold ：3.65 V）

• On chip low battery detector （ On chip comparator ）

• Wide temperature range -40°C to 150 °C

• Environmental products （ accord with RoHS）

• AEC authentication

advantage

• Also applicable to truck systems （24V The Internet ）

• 100% DC low voltage difference

• For permanent Vbat Connect the system

• Reset the generator , control µC

Potential applications

• body

• instrument panel

• Universal