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BD3509MUV Fiches technique(PDF) 4 Page - Rohm

No de pièce BD3509MUV
Description  Nch FET Ultra LDO for PC Chipsets
Download  21 Pages
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Fabricant  ROHM [Rohm]
Site Internet  http://www.rohm.com
Logo ROHM - Rohm

BD3509MUV Fiches technique(HTML) 4 Page - Rohm

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Technical Note
www.rohm.com
2010.04 - Rev.C
© 2010 ROHM Co., Ltd. All rights reserved.
BD3508MUV,BD3509MUV
Electrical Characteristics
(Unless otherwise specified, Ta=25℃ VCC=5V Ven=3V VIN=1.5V VDD=3.3V R1=3.9KΩ R2=3.6KΩ)
BD3509MUV
Parameter
Symbol
Limits
Unit
Conditions
Min.
Typ.
Max.
Bias Current
ICC
-
1.1
2.0
mA
VCC Shutdown Mode Current
IST
-
0
10
µA
Ven=0V
Output Voltage
Vo
-
1.25
-
V
Maximum Output Current
Io
4.0
-
-
A
Output Voltage Temperature
Coefficient
Tcvo
-
0.01
-
%/℃
Feedback Voltage 1
VFB1
0.643
0.650
0.657
V
Feedback Voltage 2
VFB2
0.637
0.650
0.663
V
Io=0 to 4A
Tj=-10 to 100℃ *
7
Line Regulation 1
Reg.l1
-
0.1
0.5
%/V
VCC=4.3V to 5.5V
Line Regulation 2
Reg.l2
-
0.1
0.5
%/V
VIN=1.2V to 3.3V
Load Regulation
Reg.L
-
0.5
10
mV
Io=0 to 4A
Minimum Input-Output Voltage
Differential
dVo
-
28
50
mV
Io=1A,VIN=1.25V
Tj=-10 to 100℃ *
7
Standby Discharge Current
Iden
1
-
-
mA
Ven=0V, Vo=1V
[ENABLE]
Enable Pin
Input Voltage High
Enhi
2
-
-
V
Enable Pin
Input Voltage Low
Enlow
-0.2
-
0.8
V
Enable Input Bias Current
Ien
-
7
10
µA
Ven=3V
[FEEDBACK]
Feedback Pin Bias Current
IFB
-100
0
100
nA
[NRCS]
NRCS Charge Current
Inrcs
14
20
26
µA
Vnrcs=0.5V
NRCS Standby Voltage
VSTB
-
0
50
mV
Ven=0V
[UVLO]
VCC Under voltage Lock out
Threshold Voltage
VccUVLO
3.5
3.8
4.1
V
VCC:Sweep-up
VCC Under voltage Lock out
Hysteresis Voltage
Vcchys
100
160
220
mV
VCC:Sweep-down
[AMP]
Gate Source Current
IGSO
-
10
-
mA
VFB=0, VGATE=2.5V
Gate Sink Current
IGSI
-
18
-
mA
VFB=VCC, VGATE=2.5V
[PGOOD Block]
Threshold voltage
VTHPG
-
0.585
-
V
FB voltage
Ron
RPG
-
0.1
-
*7 Design Guarantee


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