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BD1482EFJ

Description
Low Standby Current during Shutdown Mode
File Size559KB,20 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
Download Datasheet View All

BD1482EFJ Overview

Low Standby Current during Shutdown Mode

Datasheet
4.2V to 18V, 2A 1ch
Synchronous Buck Converter integrated FET
BD1482EFJ
●General
Description
The BD1482EFJ is a synchronous step-down
switching regulator that integrates 2 low ON-resistance
N-channel MOSFETs. It achieves 2A continuous
output current over a wide input supply range. Current
mode operation provides fast transient response and
easy phase compensation.
●Features
Low ESR Output Ceramic Capacitors are
Available
Low Standby Current during Shutdown Mode
380 kHz Fixed Operating Frequency
Feedback voltage
0.923V ± 1.5%(Ta=25℃),
0.923V ± 2.0%(Ta=-25℃ to 85℃)
Protection Circuits
Under Voltage Lockout Protection
Thermal Shutdown
Over Current Protection
●Applications
Distributed Power System
Pre-Regulator for Linear Regulator
HTSOP-J8
●Typical
Application Circuit
C_PC
3300pF
C_SS
0.1μF
COMP
SS
EN
●Key
Specifications
Input voltage range:
4.2V to 18V
Output voltage range:
0.923V to (Vin×0.7)V
Output current:
2.0A (Max.)
Switching Frequency
380kHz(Typ.)
Hi-side FET On-resistance:
0.15Ω(Typ.)
Lo-side FET On-resistance:
0.13Ω(Typ.)
Standby current:
15μA (Typ.)
Operating temperature range:
-40℃ to +85℃
●Package
HTSOP-J8
(Typ.)
(Typ.)
(Max.)
4.90mm x 6.00mm x 1.00mm
R_PC
7.5kΩ
R_UP
FB
R_DW
15kΩ
39kΩ
Thermal Pad
(to be shorted to GND)
BST
GND
VIN
SW
L
V
OUT
3.3V
10µH
VIN 12V
C_VC1
10μF
R_BS
22Ω
C_CO1
20μF
※R_BS
protect from VIN-BST short destruction.
Fig.1 Typical Application Circuit
○Product
structure:Silicon monolithic integrated circuit
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½14½001
○This
product is not designed protection against radioactive rays.
C_BS
0.1μF
1/17
TSZ02201-0333AD100130-1-2
06.Aug.2012 Rev.001
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