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2011.03 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
Power Management IC Series for Automotive Body Control
High Voltage
LDO Regulators
BD3570FP, BD3570HFP, BD3571FP, BD3571HFP, BD3572FP, BD3572HFP
BD3573FP, BD3573HFP, BD3574FP, BD3574HFP, BD3575FP, BD3575HFP
●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 3.3V 5.0 V Variable 3.3V 5.0 V Variable
SW function - - - 〇 〇 〇
Package FP:TO252-3,TO252-5
HFP:HRP5
●Absolute maximum ratings (Ta=25℃)
Parameter Symbol Limit Unit
Supply voltage VCC 50 ※1V
Switch Supply voltage VSW 50 ※2V
Output current IO 500 mA
Power dissipation Pd
1.2 (TO252-3) ※3
W 1.3 (TO252-5) ※4
1.6 (HRP5) ※5
Operating temperature range Topr -40 to +125 ℃
Storage temperature range Tstg -55 to +150 ℃
Maximum junction
temperature
T
jmax 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).
No.11036EBT02