BD8963EFJ Datasheet, PDF (1/18 Pages) Rohm – Low Noise High-efficiency Switching Regulator with Built-in Power MOSFET

Single-chip Type with Built-in FET Switching Regulators
Low Noise
High-efficiency Switching Regulator
with Built-in Power MOSFET
BD8963EFJ
No.10027EAT43
●Description
ROHM’s high efficiency step-down switching regulator BD8963EFJ is a power supply designed to produce a low voltage
including 1 volts from 5.5/3.3 volts power supply line. Offers high efficiency with synchronous rectifier. Employs a current
mode control system to provide faster transient response to sudden change in load.
●Features
1) Offers fast transient response with current mode PWM control system.
2) Offers highly efficiency for all load range with synchronous rectifier (Nch/Pch FET)
3) Incorporates soft-start function.
4) Incorporates thermal protection and ULVO functions.
5) Incorporates short-current protection circuit with time delay function.
6) Incorporates shutdown function
7) Employs small surface mount package : HTSOP-J8
●Applications
Power supply for LSI including DSP, Micro computer and ASIC
●Absolute maximum ratings
Parameter
Symbol
Ratings
Unit
VCC Voltage
VCC
-0.3 ~ +7 ^*1
V
EN Voltage
VEN
-0.3 ~ +7
V
SW,COMP Voltage
Power Dissipation 1
Power Dissipation 2
VSW,VCOMP
-0.3 ~ +7
V
Pd1
0.5^*2
W
Pd2
3.76^*3
W
Operating temperature range
Topr
-25 ~ +85
℃
Storage temperature range
Tstg
-55 ~ +150
℃
Maximum junction temperature
Tjmax
+150
℃
*1 Pd should not be exceeded.
*2 Reduced by 4.0mW for increase in Ta of 1℃ above 25℃.
*3 Reduced by 30.0mW for increase in Ta of 1℃ above 25℃.
(when mounted on a board 70.0mm × 70.0mm × 1.6mm Glass-epoxy PCB)
●Operating conditions (Ta=-25 ~ +85℃)
Parameter
Ratings
Symbol
Unit
Min.
Typ.
Max.
Power Supply Voltage
VCC
2.7 *5
5.0
5.5
V
EN Voltage
Output voltage range
SW average output current
VEN
0
-
Vcc
V
VOUT
1.0
-
2.5^*4
V
Isw
-
-
3.0^*5
A
*4 In case set output voltage 1.6V or more, VccMin. = Vout +2.25V
*5 Pd should not be exceeded.
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2010.06 - Rev.A