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CS5257A-1GDP5 Folha de dados(PDF) 3 Page - ON Semiconductor

Nome de Peças CS5257A-1GDP5
Descrição Electrónicos  7.0 A LDO 5?뭁in Adjustable Linear Regulator
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Fabricante Electrônico  ONSEMI [ON Semiconductor]
Página de início  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CS5257A-1GDP5 Folha de dados(HTML) 3 Page - ON Semiconductor

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ELECTRICAL CHARACTERISTICS (continued) (0°C ≤ TA ≤ 70°C; 0°C ≤ TJ ≤ 150°C; VSENSE = VOUT and VADJ = 0 V; unless
otherwise specified.)
Characteristic
Unit
Max
Typ
Min
Test Conditions
CS5257A−1
Short Circuit Current
VCONTROL = 2.75 V, VPOWER = 2.05 V, VOUT = 0 V
5.0
9.0
A
Ripple Rejection (Note 6)
VCONTROL = VPOWER = 3.25 V
VRIPPLE = 1.0 VP−P @ 120 Hz, IOUT = 4.0 A,
CADJ = 0.1 mF
60
80
dB
Thermal Regulation
30 ms Pulse, TA = 25°C
0.002
%/W
VCONTROL Dropout Voltage
(Minimum VCONTROL − VOUT)
(Note 7)
VPOWER = 2.05 V, IOUT = 100 mA
VPOWER = 2.05 V, IOUT = 1.0 A
VPOWER = 2.05 V, IOUT = 2.75 A
VPOWER = 2.05 V, IOUT = 4.0 mA
VPOWER = 2.05 V, IOUT = 7.0 A
1.00
1.00
1.00
1.00
1.10
1.15
1.15
1.15
1.15
1.25
V
V
V
V
V
VPOWER Dropout Voltage
(Minimum VPOWER − VOUT)
(Note 7)
VCONTROL = 2.75 V, IOUT = 100 mA
VCONTROL = 2.75 V, IOUT = 1.0 A
VCONTROL = 2.75 V, IOUT = 2.75 A
VCONTROL = 2.75 V, IOUT = 4.0 mA
VCONTROL = 2.75 V, IOUT = 7.0 A
0.10
0.15
0.20
0.26
0.35
0.15
0.20
0.30
0.40
0.65
V
V
V
V
V
RMS Output Noise
Freq = 10 Hz to 10 kHz, TA = 25°C
0.003
%VOUT
Temperature Stability
0.5
%
Thermal Shutdown (Note 8)
150
180
210
°C
Thermal Shutdown Hysteresis
25
°C
VCONTROL Supply Only Output
Current
VCONTROL = 13 V, VPOWER Not Connected,
VADJ = VOUT = VSENSE = 0 V
50
mA
VPOWER Supply Only Output
Current
VPOWER = 6.0 V, VCONTROL Not Connected,
VADJ = VOUT = VSENSE = 0 V
0.1
1.0
mA
6. This parameter is guaranteed by design and is not 100% production tested.
7. Dropout is defined as either minimum control voltage (VCONTROL) or minimum power voltage (VPOWER) to output voltage differential re-
quired to maintain 1.5% regulation at a particular load.
8. This parameter is guaranteed by design, but not parametrically tested in production. However, a 100% thermal shutdown functional test
is performed on each part.
PACKAGE PIN DESCRIPTION
PACKAGE PIN #
PIN SYMBOL
FUNCTION
TO−220−5D2PAK−5
1
1
VSENSE
This Kelvin sense pin allows for remote sensing of the output voltage at the load for im-
proved regulation. It is internally connected to the positive input of the voltage sensing error
amplifier.
2
2
Adjust
This pin is connected to the low side of the internally trimmed 1.5% bandgap reference volt-
age and carries a bias current of about 50 mA. A resistor divider from Adjust to VOUT and
from Adjust to ground sets the output voltage. Also, transient response can be improved by
adding a small bypass capacitor from this pin to ground.
3
3
VOUT
This pin is connected to the emitter of the power pass transistor and provides a regulated
voltage capable of sourcing 7.0 A of current.
4
4
VCONTROL
This is the supply voltage for the regulator control circuitry. For the device to regulate, this
voltage should be between 1.0 V and 1.25 V (depending on the output current) greater than
the output voltage. The control pin current will be about 1.0% of the power pin output current.
5
5
VPOWER
This is the power input voltage. This pin is physically connected to the collector of the power
pass transistor. For the device to regulate, this voltage should be between 0.1 V and 0.65 V
greater than the output voltage depending on the output current. The output load current of
7.0 A is supplied through this pin.


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