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Número de pieza BD30KA5WFP-E2
Descripción 500mA Variable/Fixed Output LDO Regulators
Fabricantes Rohm 
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BD30KA5WFP-E2 datasheet

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BD30KA5WFP-E2 pdf
BDxxKA5 Series BDxxKA5W Series BD00KA5W Series
Datasheet
Electrical Characteristics – continued
BD00KA5W Series
(Unless otherwise specified, Ta=25, Vcc=2.5V, VCTL=2V ,Vo=1.5V)
Parameter
Limit
Symbol
Min Typ Max
Unit
Conditions
Shut Down Current
Isd 0 1 μA VCTL=0V, Io=0mA (OFFmode)
Bias Current
Ib 350 550 μA Io=0mA
Reference Voltage
Dropout Voltage *10
VADJ
ΔVd
0.742 0.750 0.758
0.12 0.20
V Io=50mA
V Io=200mA, Vcc=0.95×Vo
Peak Output Current
Io 500 - - mA
Ripple Rejection
R.R.
50
dB f=120Hz, ein12=-10dBV, Io=100mA
Line Regulation
Reg.I 10 35 mV Vcc=Vo+0.5V5.5V, Io=200mA
Load Regulation
Reg.L
25
75
mV Io=0mA500mA
Temperature Coefficient of
Output Voltage *11
CTL ON Mode Voltage
Tcvo
- ±100 ppm/Io=5mA,Tj=0 to 125
VCTLON 2.0
V ACTIVE MODE, Io=0mA
CTL OFF Mode Voltage
VCTLOFF
0.8
V OFF MODE, Io=0mA
CTL Input Current
*10 Vo2.5V
*11 Not 100% tested
*12 ein : Input Voltage Ripple
ICTL 20 40 60 μA Io=0mA
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
5/15
TSZ02201-0R6R0A600150-1-2
26.Jun.2012 Rev.001

5 Page

BD30KA5WFP-E2 arduino
BDxxKA5 Series BDxxKA5W Series BD00KA5W Series
Datasheet
The calculation method for power consumption Pc(W) is as follows :
Pc = (Vcc-Vo)×Io+Vcc×Icca
Acceptable loss PdPc
Solving for the load current IO in order to operate within the acceptable loss,
VccInput voltage
VoOutput voltage
IoLoad current
IccaCircuit current
Io
Pc – Vcc×Icca
VccVo
It is then possible to find the maximum load current IoMAX with respect to the applied voltage Vcc at the time of thermal design.
Calculation Example
Example 1) When Ta=85, Vcc=2.5V, Vo=1.0V
Io
0.6762.5×Icca
2.5-1.0
Io440mA (Icca : 6mA)
BA10KA5WFPTO252-5 packaging
θja=96.2/W -10.4mW/
25=1300mW 85=676mW
Please refer to the above information and keep thermal designs within the scope of acceptable loss for all operating
temperature ranges.
The power consumption Pc of the IC when there is a short circuit (short between Vo and GND) is :
Pc=Vcc×(Icca+Ishort)
*Ishort : Short circuit current
Terminal Vicinity Settings and Cautions
Vcc Terminal
Please attach a capacitor (greater than 1μF) between Vcc and GND.
The capacitance values differ depending on the application, so chose a capacitor with sufficient margin and verify the
operation on actual board.
GND Terminal
Please be sure to keep the set ground and IC ground at the same potential level so that a potential difference does not
arise between them. If a potential difference arises between the set ground and the IC ground, the preset voltage will not
be output properly, causing the system to become unstable. Please reduce the impedance by making the ground patterns
as wide as possible and reducing the distance between the set ground and the IC ground as much as possible.
CTL Terminal
31.25k
The CTL terminal is turned ON at 2.0V and higher, and OFF at
0.8V and lower, within the operating power supply voltage range.
CTL The power supply and the CTL terminal may be started up and
25k
shut down in any order without problems.
Fig.23 Input equivalent circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
10/15
TSZ02201-0R6R0A600150-1-2
26.Jun.2012 Rev.001

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