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ROHM Semiconductor |
Power Management IC Series for Automotive Body Control
High Voltage
LDO Regulators
BD3570FP, BD3570HFP, BD3571FP, BD3571HFP, BD3572FP, BD3572HFP
BD3573FP, BD3573HFP, BD3574FP, BD3574HFP, BD3575FP, BD3575HFP
No.11036EBT02
●Description
BD357XFP/HFP SERIES regulators feature a high 50 V withstand-voltage and are suitable for use with onboard vehicle
microcontrollers. They offer the output current of 500 mA while limiting the quiescent current to 30μA (TYP).With these
devices, a ceramic capacitor can be selected at the output for stable operation, the output tolerance is within ±2% over the
wide ambient temperature range (-40 to 125℃), and the short circuit protection is folded-type to minimize generation of
heat during malfunction. These devices are developed to offer most robust power-supply design under the harsh
automotive environment. The BD357XFP/HFP Series provide ideal solutions to lower the current consumption as well as to
simplify the use with battery direct-coupled systems.
●Features
1) Ultra-low quiescent current: 30μA (TYP.)
2) Low-saturation voltage type P-channel DMOS output transistors
3) High output voltage precision: 2%/Iomax = 500 mA
4) Low-ESR ceramic capacitors can be used as output capacitors.
5) Vcc power supply voltage = 50 V
6) Built-in overcurrent protection circuit and thermal shutdown circuit
7) TO252-3, TO252-5, HRP5 Package
●Applications
Onboard vehicle devices (body-control, car stereos, satellite navigation systems, etc.)
●Line up matrix
BD3570FP/HFP BD3571FP/HFP BD3572FP/HFP BD3573FP/HFP BD3574FP/HFP BD3575FP/HFP
Output voltage
SW function
3.3V
-
5.0 V
-
Variable
-
3.3V
〇
5.0 V
〇
Variable
〇
Package
FP:TO252-3,TO252-5
HFP:HRP5
●Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Limit
Unit
Supply voltage
VCC 50 ※1 V
Switch Supply voltage
VSW
50 ※2 V
Output current
IO 500 mA
1.2 (TO252-3) ※3
Power dissipation
Pd
1.3 (TO252-5) ※4
W
1.6 (HRP5) ※5
Operating temperature range
Topr
-40 to +125
℃
Storage temperature range
Tstg
-55 to +150
℃
Maximum junction
temperature
Tjmax
150
℃
※1 Not to exceed Pd and ASO.
※2 for ON/OFF SW Regulator only
※3 TO252-3: Reduced by 9.6 mW/℃ over 25 ℃, when mounted on a glass epoxy board (70 mm 70 mm 1.6 mm).
※4 TO252-5: Reduced by 10.4 mW/℃ over 25 ℃, when mounted on a glass epoxy board (70 mm 70 mm 1.6 mm).
※5 HRP5: Reduced by 12.8 mW/℃ over 25 ℃, when mounted on a glass epoxy board (70 mm 70 mm 1.6 mm).
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/9
2011.03 - Rev.B
Free Datasheet http://www.datasheet4u.com/
BD3570FP/HFP, BD3571FP/HFP, BD3572FP/HFP, BD3573FP/HFP
BD3574FP/HFP, BD3575FP/HFP
●Operating Conditions
Parameter
Symbol Min.
Max.
Input voltage
BD3570,3572,3573,3575FP/HFP VCC 4.5 ※6 36.0
BD3571,3574FP/HFP
VCC 5.5 ※6 36.0
Output current
IO - 500
Variable Output Voltage Range
VO 2.8
12
※6 Please consider that the Output voltage would be dropped (Dropout voltage) according to the output current.
Technical Note
Unit
V
V
mA
V
●Electrical Characteristics(Unless otherwise specified, Ta=-40 to125℃, VCC=13.2 V, SW=3V ※7, VO settings is 5V ※8)
Parameter
Symbol
Min.
Limit
Typ.
Unit
Max.
Conditions
Shut Down Current ※7
lshut
-
-
10 μA SW=GND
Bias current
Output voltage
ADJ Terminal voltage ※8
lb
VO
VADJ
-
VO×
0.98
1.235
30
VO
1.260
50 μA IO=0mA
VO×
1.02
V IO=200mA,
VO:Please refer to Product line.
1.285 V IO=200mA
Output current
IO 0.5 - - A
Dropout voltage
△Vd
-
0.25
0.48
V VCC=4.75V,lO=200mA
※9
Ripple rejection
Line Regulation
Load Regulation
R.R. 45 55 - dB f=120Hz,ein=1Vrms,IO=100mA
Reg.I
-
10
30 mV VCCD※10≦VCC≦25V
IO = 0 mA
Reg.L
-
20
40 mV 0mA≦IO≦200mA
Swith Threshold voltage H ※7
SWH
2.0
-
- V IO=0 mA
Swith Threshold voltage L ※7
SWL
-
-
0.5 V IO=0 mA
Swith Bias current ※7
SWI
-
22
60
※7
※8
※9
※10
BD3573,3574,3575FP/HFP only
BD3572,3575FP/HFP only
BD3571,3572,3574,3575FP/HFP only
BD3570,3573FP/HFP :VCCD=5.5V
BD3571,3572,3574,3575FP/HFP :VCCD=6.5V
○This product is not designed for protection against radio active rays.
μA SW=5V,lO=0mA
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2/9
2011.03 - Rev.B
Free Datasheet http://www.datasheet4u.com/
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