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BA3259HFP Fiches technique(PDF) 2 Page - Rohm

No de pièce BA3259HFP
Description  Dual-output Secondary Fixed/Variable Output LDO Regulators for Local Power Supplies
Download  10 Pages
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Fabricant  ROHM [Rohm]
Site Internet  http://www.rohm.com
Logo ROHM - Rohm

BA3259HFP Fiches technique(HTML) 2 Page - Rohm

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BA3259HFP,BA30E00WHFP
Technical Note
2/9
www.rohm.com
2009.04 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
Electrical Characteristics
BA3259HFP (Unless otherwise specified, Ta=25°C, Vcc=5 V, R1=R2=5 k
)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Circuit current
IB
3
5
mA
Io1=0 mA, Io2=0mA
[3.3 V Output Block]
Output voltage 1
Vo1
3.234
3.300
3.366
V
Io1=50mA
Minimum I/O voltage difference 1
∆Vd1
1.1
1.3
V
Io1=1 A, Vcc=3.8V
Current capability 1
Io1
1.0
A
Ripple rejection 1
R.R.1
46
52
dB
f=120Hz, ein=0.5Vp-p, Io1=5mA
Input stability 1
∆VLINE1
5
15
mV
Vcc=4.75→14V, Io1=5mA
Load stability 1
∆VLOAD1
5
20
mV
Io1=5mA→1 A
Temperature coefficient of output
voltage 1
*3
Tcvo1
±0.01
%/°C
Io1=5mA,Tj=0°C to 85°C
[Variable output]
Reference voltage
VREF
0.784
0.800
0.816
V
Io2=50 mA
Minimum I/O voltage difference 2
∆Vd2
1.1
1.3
V
Io2=1 A
Current capability 2
Io2
1.0
A
Ripple rejection 2
R.R.2
46
52
dB
f=120Hz, ein=0.5 Vp-p, Io2=5mA
Input stability 2
∆VLINE2
5
15
mV
Vcc=4.75→14V, Io2=5mA
Load stability 2
∆VLOAD2
5
20
mV
Io2=5 mA→1 A
Temperature coefficient of output
voltage 2
*3
Tcvo2
±0.01
%/°C
Io2=5mA,Tj=0°C to 85°C
Variable pin current
IADJ
0.05
1.0
A
VADJ=0.85V
*3: Operation is guaranteed within these parameters
BA30E00WHFP (Unless otherwise specified, Ta=25°C, Vcc1=Vcc2=VEN=5 V, R1=50 k
, R2=62.5 k)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Bias current
Ib
0.7
1.6
mA
Io1=0mA, Io2=0mA
Standby current
IST
0
10
A
VEN=GND
EN pin on voltage
VON
2.0
V
Active mode
EN pin off voltage
VOFF
0.8
V
Standby mode
EN pin current
IEN
50
100
A
VEN=3.3V
[3.3 V output]
Output voltage 1
Vo1
3.234
3.300
3.366
V
Io1=50mA
Minimum I/O voltage difference 1
∆Vd1
0.30
0.60
V
Io1=300mA,Vcc=3.135V
Output current capacity 1
Io1
0.6
A
Ripple rejection 1
R.R.1
68
dB
f=120Hz, ein=1Vp-p,Io1=100mA
Input stability 1
Reg.I1
5
30
mV
Vcc1=4.1→16V,Io1=50mA
Load stability 1-1
Reg.L1-1
30
90
mV
Io1=0 mA→0.6A
Load stability 1-2
Reg.L1-2
30
90
mV
Vcc1=3.7V,Io1=0→0.4A
Temperature coefficient of output
voltage 1
*3
Tcvo1
±0.01
%/°C
Io1=5mA,Tj=0°C to 125°C
[Variable output] (at 1.8 V)
Reference voltage
VADJ
0.784
0.800
0.816
V
Io2=50 mA
Minimum I/O voltage difference 2
∆Vd2
0.30
0.60
V
At Io2=3.3V
Io2=300mA,Vcc1=Vcc2=3.135V
Output current capacity 2
Io2
0.6
A
Ripple rejection 2
R.R.2
66
dB
f=120 Hz,ein=1Vp-p,Io2=100mA
Input stability 2
Reg.I2
5
30
mV
Vcc1=Vcc2=4.1V→16V,Io2=50mA
Load stability 2
Reg.L2
30
90
mV
Io2=0mA→0.6A
Temperature coefficient of output
voltage 2
*3
Tcvo2
±0.01
%/°C
Io2=5mA,Tj=0°C to 125°C
*3: Operation is guaranteed within these parameters


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