파트넘버.co.kr BD95242MUV 데이터시트 PDF


BD95242MUV 반도체 회로 부품 판매점

2ch Switching Regulator



ROHM Semiconductor 로고
ROHM Semiconductor
BD95242MUV 데이터시트, 핀배열, 회로
Hi-performance Regulator IC Series for PCs
2ch Switching Regulator
for Desktop PC
BD95242MUV
No.10030ECT14
Description
BD95242MUV is a switching regulator controller with high output current which can achieve low output voltage (2.0V~5.5V)
from a wide input voltage range (7V~25V). High efficiency for the switching regulator can be realized by utilizing an external
N-MOSFET power transistor. A new technology called H3RegTM is a Rohm proprietary control method to realize ultra high
transient response against load change. SLLM (Simple Light Load Mode) technology is also integrated to improve efficiency
in light load mode, providing high efficiency over a wide load range. For protection and ease of use, the soft start function,
variable frequency function, short circuit protection function with timer latch, over voltage protection with timer latch, and
Power good function are all built in. This switching regulator is specially designed for Main Power Supply.
Features
1) 2ch H3RegTM Switching Regulator Controller
2) Adjustable Simple Light Load Mode (SLLM), Quiet Light Load Mode (QLLM) and Forced continuous Mode
3) Thermal Shut Down (TSD), Under Voltage Lock Out (UVLO), Over Current Protection (OCP),
Over Voltage Protection (OVP), Short circuit protection with timer-latch (SCP)
4) Soft start function to minimize rush current during startup
5) Switching Frequency Variable (f=200 kHz~500 kHz)
6) Power good circuit
7) 2ch linear regulator
8) VQFN032V5050 package
Applications
Laptop PC, Desktop PC, LCD-TV, Digital Components
www.DataSheet.co.kr
Maximum Absolute Ratings (Ta=25)
Parameter
Symbol
Limits
VIN, CTL
EXTVCC, PGOOD1, PGOOD2FB1, FB2, Is+1, Is+2, MCTL
30 *1*2
7 *1*2
FS1, FS2, REF1, REF2, SS1, SS2, LG1, LG2
REG1+0.3*1*2
BOOT1, BOOT2
35 *1*2
Terminal voltage
BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2
HG1
7 *1*2
BOOT1+0.3 *1*2
HG2
BOOT2+0.3 *1*2
EN1, EN2
6 *1*2
DGND, PGND1, PGND2
AGND±0.3 *1*2
Power dissipation 1
Power dissipation 2
Power dissipation 3
Power dissipation 4
Pd1 0.38 *3
Pd2 0.88 *4
Pd3 2.06 *5
Pd4 4.56 *6
Operating temperature range
Topr
-10 ~ +100
Storage temperature range
Tstg
-55 ~ +150
Junction Temperature
Tjmax
+150
*1 Do not however exceed Pd.
*2 Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle.
*3 Reduced by 3.0mW for each increase in Ta of 1over 25(when don’t mounted on a heat radiation board )
*4 Reduced by 7.0mW for increase in Ta of 1over 25. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 1 layer. (Copper foil area: 0mm2))
*5 Reduced by 16.5mW for increase in Ta of 1over 25. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 4 layers. (1st and 4th copper foil area: 20.2mm2, 2nd and 3rd copper foil area: 5505mm2))
*6 Reduced by 36.5mW for increase in Ta of 1over 25. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 4 layers. (All copper foil area: 5505mm2))
Unit
V
V
V
V
V
V
V
V
V
W
W
W
W
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/20
2010.03 - Rev.C
Datasheet pdf - http://www.DataSheet4U.net/


BD95242MUV 데이터시트, 핀배열, 회로
Technical Note
Operating Conditions (Ta=25)
Parameter
Symbol
VIN
EXTVCC
CTL
EN1, EN2
BOOT1, BOOT2
Terminal voltage
BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2
PGOOD1, PGOOD2
FS1, FS2
REF1, REF2
Is+1, Is+ 2, FB1, FB2
MCTL
*This product should not be used in a radioactive environment.
MIN.
7
4.5
-0.3
-0.3
4.5
-0.3
-0.3
0.09
1
1.9
-0.3
MAX.
25
5.5
25
5.5
30
5.5
5.5
1.25
2.75
5.6
REG1+0.3
Unit
V
V
V
V
V
V
V
V
V
V
V
Electrical characteristics
(unless otherwise noted, Ta=25VIN=12V, CTL=5V, EN1=EN2=5V, REF1=2.5V, REF2=1.65V, FS1=FS2=0.582V)
Parameter
Symbol
Standard Value
MIN.
TYP.
MAX.
Unit
Conditions
VIN standby current
ISTB
70 150 250 μA CTL=5V, EN1=EN2=0V
VIN bias current
IIN 0 45 130 μA EXTVCC=5V
Shut down mode current
ISHD
-10
0
10 μA CTL=0V
CTL Low voltage
VCTLL
-0.3
-
0.8 V
CTL High voltage
VCTLH
2.3
-
25 V
CTL bias current
ICTL
-
1 3 μA VCTL=5V
EN Low voltage
VENL
-0.3
-
0.8 V
EN High voltage
VENH
2.3
-
5.5 V
EN bias current
IEN - 1 3 μA VEN=3V
[5V linear regulator]
REG1 output voltage
VREG1 4.90 5.00 5.10
V IREG1=1mA
Maximum current
IREG1
200
-www.DataSheet.co.kr
- mA IREG2=0mA
Line Regulation
REG1I
-
90 180 mV VIN=7.5 to 25V
Load Regulation
REG1L
-
30 50 mV IREG1=0 to 30mA
[3.3V linear regulator]
REG2 output voltage
VREG2 3.27 3.30 3.33
V IREG2=1mA
Maximum current
IREG2
100
-
- mA
Line regulation
REG2I
-
- 20 mV VIN=7.5 to 25V
Load regulation
REG2L
-
- 30 mV IREG2=0 to 100mA
[5V switch block]
EXTVCC input threshold
voltage
VCC_UVLO
4.2
4.4
4.6
V EXTVCC: Sweep up
EXTVCC input delay time
TVCC
2
4
8 ms
Switch Resistance
RVCC
1.0 2.0
[Under voltage lock out block for DC/DC]
REG1 threshold voltage
REG1_UVLO 4.0
4.2
4.4
V REG1: Sweep up
REG2 threshold voltage
REG2_UVLO 2.45
2.65
2.85
V REG2: Sweep up
Hysteresis voltage
dV_UVLO
50
100 200 mV REG1, REG2: Sweep down
[Error amplifier block]
Feedback voltage 1
VFB1
REF1×2
-25m
REF1×2
REF1×2
+25m
V
FB1 bias current
IFB1 20 45 90 μA FB1=5V
Output discharge resistance 1 RDISOUT1
0.5
1
3 k
Feedback voltage 2
VFB2
REF2×2
-25m
REF2×2
REF2×2
+25m
V
FB2 bias current
IFB2 10 30 60 μA FB2=3.3V
Output discharge resistance 2 RDISOUT2
0.5
1
3 k
REF1, REF2 bias current IREF1, IREF2 -10 - 10 μA
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/20
2010.03 - Rev.C
Datasheet pdf - http://www.DataSheet4U.net/




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BD95242MUV regulator

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BD95242MUV

2ch Switching Regulator - ROHM Semiconductor