BD1482EFJ Datasheet, PDF (1/20 Pages) Rohm – 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
●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
●Applications
Distributed Power System
Pre-Regulator for Linear Regulator
●Typical Application Circuit
C_SS
0.1μF
HTSOP-J8
C_PC
3300pF
R_PC
7.5kΩ
R_DW
15kΩ
R_UP
39kΩ
Thermal Pad
(to be shorted to GND)
VIN 12V
C_VC1
10μF
L
10µH
VOUT 3.3V
C_CO1
20μF
※R_BS protect from VIN-BST short destruction.
Fig.1 Typical Application Circuit
○Product structure：Silicon monolithic integrated circuit
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©2012 ROHM Co., Ltd. All rights reserved.
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○This product is not designed protection against radioactive rays.
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06.Aug.2012 Rev.001