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CS5253B-1 데이터시트(Datasheet) 3 Page - ON Semiconductor

부품명 CS5253B-1
상세내용  3.0 A LDO 5-Pin Adjustable Linear Regulator with Remote Sense Applications
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제조사  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
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CS5253B−1
http://onsemi.com
3
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
VCONTROL Dropout Voltage
(Minimum VCONTROL − VOUT)
(Note 5)
VPOWER = 2.05 V, IOUT = 100 mA
VPOWER = 2.05 V, IOUT = 1.0 A
VPOWER = 2.05 V, IOUT = 3.0 A
0.90
1.00
1.05
1.15
1.15
1.30
V
V
V
VPOWER Dropout Voltage
(Minimum VPOWER − VOUT)
(Note 5)
VCONTROL = 2.75 V, IOUT = 100 mA
VCONTROL = 2.75 V, IOUT = 1.0 A
VCONTROL = 2.75 V, IOUT = 3.0 A
0.05
0.15
0.40
0.15
0.25
0.60
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 6)
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
5. Dropout is defined as either the minimum control voltage (VCONTROL) or minimum power voltage (VPOWER) to output voltage differential
required to maintain 1.0% regulation at a particular load current.
6. 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
1
VSENSE
This Kelvin sense pin allows for remote sensing of the output voltage at the load for improved regulation. It is
internally connected to the positive input of the voltage sensing error amplifier.
2
Adjust
This pin is connected to the low side of the internally trimmed 1.0% bandgap reference voltage 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
VOUT
This pin is connected to the emitter of the power pass transistor and provides a regulated voltage capable of
sourcing 3.0 A of current.
4
VCONTRO
L
This is the supply voltage for the regulator control circuitry. For the device to regulate, this voltage should be be-
tween 0.9 V and 1.3 V (depending on the output current) greater than the output voltage. The control pin current
will be about 1.0% of the output current.
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 0.6 V greater than the output voltage depending
on the output current. The output load current of 3.0 A is supplied through this pin.
Figure 2. Block Diagram
+
+
BIAS
and
TSD
VREF
EA
IA
VOUT
VSENSE
Adjust
VPOWER
VCONTROL




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