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BD1484EFJ-E2

Description
Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET
CategoryPower/power management    The power supply circuit   
File Size554KB,21 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
Environmental Compliance
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BD1484EFJ-E2 Overview

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD1484EFJ-E2 Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerROHM Semiconductor
package instructionVSOP,
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresOUTPUT VOLTAGE RANGE FROM 0.925 V TO 12.6 V
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage18 V
Minimum input voltage4.2 V
Nominal input voltage12 V
JESD-30 codeR-PDSO-G8
length4.9 mm
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeVSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Maximum seat height1 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency380 kHz
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.9 mm
Datasheet
4.2V to 18V, 3A 1ch
Synchronous Buck Converter integrated FET
BD1484EFJ
●General
Description
The BD1484EFJ is a synchronous step-down
switching regulator that integrates 2 low ON-resistance
N-channel MOSFETs. It achieves 3A 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
0.925V ± 1.5%(Ta=25℃),
0.925V ± 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:
0.925V to (Vin×0.7)V
Output current:
3.0A (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
TSZ02201-0333AD100140-1-2
06.Aug.2012 Rev.001
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