BD9876AEFJ Datasheet, PDF (1/24 Pages) Rohm – Flexible Step-down Switching Regulators with Built-in Power MOSFET

Datasheet
Single-chip Type with Built-in FET Switching Regulators
Flexible Step-down
Switching Regulators
with Built-in Power MOSFET
BD9876AEFJ
●General Description
Output 3.0A and below High Efficiency Rate Step-down
Switching Regulator Power MOSFET Internal Type
BD9876AEFJ 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
■ Internal 200 mΩ Nch MOSFET
■ Output Current 3A
■ Oscillation Frequency 300kHz
■ Synchronizes to External Clock ( 200kHz～
500kHz )
■ Feedback Voltage 1.0V±1.0%
■ Internal Soft Start Function
■ Internal Over Current Protect Circuit,
Low Input Error Prevention Circuit,
Heat Protect Circuit
■ ON/OFF Control through EN Pin
(Standby Current 0 A Typ.)
■ Package: HTSOP-J8 Package
●Typical Application Circuits
●Key Specifications
■ Input Voltage
■ Ref. Precision (Ta=25℃)
■ Max Output Current
■ Operating Temperature
■ Max Junction Temperature
7V to 42V
±1.0%
3A (Max.)
-40℃ to 105℃
-55℃ to 150℃
●Packages
HTSOP-J8
4.90mm x 6.00mm x 1.00mm
HTSOP-J8
●Applications
■ For Household machines in general that have
12V/24V Lines, etc.
Figure 1. Typical Application Circuit
○Structure：Silicon Monolithic Integrated Circuit ○This product is not designed for normal operation with in a radioactive.
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TSZ02201-0Q1Q0AJ00170-1-2
28.JAN.2014 Rev.003