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CS5253B-8 データシート(PDF) 3 Page - ON Semiconductor

部品番号 CS5253B-8
部品情報  3.0 A LDO 5?뭁in 2.5 V Fixed Linear Regulator for Remote Sense Applications
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ホームページ  http://www.onsemi.com
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ELECTRICAL CHARACTERISTICS (continued) (0
°C ≤ TA ≤ 70°C; 0°C ≤ TJ ≤ 150°C; VSENSE = VOUT and GND = 0 V; unless
otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
VCONTROL Dropout Voltage
(Minimum VCONTROL − VOUT)
(Note 5)
VPOWER = 3.13 V, IOUT = 100 mA
VPOWER = 3.13 V, IOUT = 1.0 A
VPOWER = 3.13 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 = 3.9 V, IOUT = 100 mA
VCONTROL = 3.9 V, IOUT = 1.0 A
VCONTROL = 3.9 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,
GND = VOUT = VSENSE = 0 V
50
mA
VPOWER Supply Only Output
Current
VPOWER = 6.0 V, VCONTROL Not Connected,
GND = 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 1.5% 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
GND
This pin is connected to system 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
VCONTROL
This is the supply voltage for the regulator control circuitry. For the device to regulate, this voltage should be
between 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
GND
VPOWER
VCONTROL


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