CS5257A-1GDP5 查看數據表（PDF） - ON Semiconductor
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CS5257A-1GDP5 Datasheet PDF : 11 Pages
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CS5257A−1
ELECTRICAL CHARACTERISTICS (continued) (0°C ≤ TA ≤ 70°C; 0°C ≤ TJ ≤ 150°C; VSENSE = VOUT and VADJ = 0 V; unless
otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
CS5257A−1
Short Circuit Current
Ripple Rejection (Note 6)
Thermal Regulation
VCONTROL Dropout Voltage
(Minimum VCONTROL − VOUT)
(Note 7)
VCONTROL = 2.75 V, VPOWER = 2.05 V, VOUT = 0 V
VCONTROL = VPOWER = 3.25 V
VRIPPLE = 1.0 VP−P @ 120 Hz, IOUT = 4.0 A,
CADJ = 0.1 mF
30 ms Pulse, TA = 25°C
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
5.0
9.0
−
A
60
80
−
dB
−
0.002
−
%/W
−
1.00
1.15
V
−
1.00
1.15
V
−
1.00
1.15
V
−
1.00
1.15
V
−
1.10
1.25
V
VPOWER Dropout Voltage
(Minimum VPOWER − VOUT)
(Note 7)
RMS Output Noise
Temperature Stability
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
Freq = 10 Hz to 10 kHz, TA = 25°C
−
−
0.10
0.15
V
−
0.15
0.20
V
−
0.20
0.30
V
−
0.26
0.40
V
−
0.35
0.65
V
−
0.003
−
%VOUT
−
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 #
TO−220−5 D2PAK−5
1
1
PIN SYMBOL
VSENSE
FUNCTION
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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