深圳市中立信电子科技有限公司

BD9876AEFJ-E2

Flexible Step-down  Switching Regulator  with Built-in Power MOSFET

开关稳压器 Step-down Sw Reg w/Built-In Power FET

●Description BD9876AEFJ-E2

Output 3.0A and below High Efficiency Rate Step-down Switching Regulator Power MOSFET Internal Type BD9876EFJ mainly used as secondary side Power supply, for example from fixed Power supply of 12V, 24V etc, Step-down Output of 1.2V/1.8V/3.3V/5V, etc, can be produced. This IC has external Coil/Capacitor down-sizing through 300kHz Frequency operation, inside Nch-FET SW for 45V “withstand-pressure” commutation and also, high speed load response through Current Mode Control is a simple external setting phase compensation system, through a wide range external constant, a compact Power supply can be produced easily.

●Features BD9876AEFJ-E2

1) Internal 200 mΩ Nch MOSFET

2) Output Current 3A

3) Oscillation Frequency 300kHz

4) Synchronizes to External Clock ( 200kHz～500kHz )

5) Feedback Voltage 1.0V±1.0%

6) Internal Soft Start Function

7) Internal Over Current Protect Circuit, Low Input Error Prevention Circuit, Heat Protect Circuit

8) ON/OFF Control through EN Pin (Standby Current 0 A Typ.)

9) Package: HTSOP-J8 Package

●Applications BD9876AEFJ-E2

For Household machines in general that have 12V/24V Lines, etc.