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BD9673AEFJ-E2

Description
ROHM Semiconductor Flexible Step-down Switching Regulators with Built-in Power MOSFET. Gold Wire
File Size2MB,25 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
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BD9673AEFJ-E2 Overview

ROHM Semiconductor Flexible Step-down Switching Regulators with Built-in Power MOSFET. Gold Wire

BD9673AEFJ-E2 Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerROHM Semiconductor
Product CategoryROHM Semiconductor
Datasheet
Single-chip Type with Built-in FET Switching Regulators
Flexible Step-down
Switching Regulators
with Built-in Power MOSFET
BD9673AEFJ
●General
Description
Output 1.5A and below High Efficiency Rate Step-down
Switching Regulator Power MOSFET Internal Type
BD9673AEFJ 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 1.5A
Oscillation Frequency 300kHz
Synchronizes to External Clock ( 200kHz½
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
15µH CDRH105R
(SUMIDA)
5V/1.0A VOUT
RB056L-40 (ROHM)
47µF/15V
GRM32EB31C476KE15 (murata)
GND
BST
Lx
VCC
VCC 24V
10µF/35V
GRM31EB3YA106KA12L
(murata)
●Key
Specifications
Input Voltage
Ref. Precision (Ta=25℃)
Max Output Current
Operating Temperature
Max Junction Temperature
●Packages
HTSOP-J8
7V to 42V
±1.0%
1.5A (Max.)
-40℃ to 105℃
-55℃ to 150℃
4.90mm x 6.00mm x 1.00mm
HTSOP-J8
●Applications
For Household machines in general that have
12V/24V Lines, etc.
0.01µF
VC
R1
120kΩ
C2
C1
open
R3
6800pF
FB
10kΩ
EN
EN
ON/OFF
control
SYNC
SYNC
R2
30kΩ
Figure 1. Typical Application Circuit
○Structure:Silicon
Monolithic Integrated Circuit
○This
product is not designed for normal operation with in a radioactive.
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
1/22
TSZ02201-0Q1Q0AJ00190-1-2
04.MAR.2014 Rev.004

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