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参数资料
| 型号： | CS5208-1GT3 |
| 元件分类： | 可调正电压单路输出LDO稳压器 |
| 英文描述： | 1.25 V-5 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSFM3 |
| 封装： | STRAIGHT, TO-220, 3 PIN |
| 文件页数： | 2/7页 |
| 文件大小： | 148K |
| 代理商： | CS5208-1GT3 |
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
Electrical Characteristics: 0°C ≤ TA ≤ 70°C, 0°C ≤ TJ ≤ 150°C, VAdj = 0V unless otherwise specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CS5208-1
2
Absolute Maximum Ratings
Input Voltage ...............................................................................................................................................................................6V
Operating Junction Temperature Range ..........................................................................................................0°C ≤ TJ ≤ 150°C
Storage Temperature Range ...............................................................................................................................-65°C to +150°C
Lead Temperature Soldering: Wave Solder (through hole styles only).........................................10 sec. max, 260°C peak
ESD Damage Threshold ...........................................................................................................................................................2kV
3L TO-220
1
Adjust
This pin is connected to the low side of the internally trimmed 1.5%
bandgap reference voltage and carries a bias current of about 70A.
A resistor divider from Adj to VOUT and from Adj to ground sets
the output voltage. Also, transient response can be improved by
adding a small bypass capacitor from this pin to ground.
2VOUT
This pin is connected to the emitter of the power pass transistor and
provides a regulated voltage capable of sourcing 8A of current.
3VIN
This is the supply voltage for the regulator . For the device to regu-
late, this voltage should be between 1.1V and 1.30V (depending on
the output current) greater than the output voltage.
Reference Voltage
VIN = 2.75V to 5.5V,
1.234
1.253
1.271
V
IOUT = 10mA to 8A
(-1.5%)
(+1.5%)
Line Regulation
VIN = 2.75V to 5.5V, IOUT = 10mA
.02
.20
%
Load Regulation
VIN = 2.75V, IOUT = 10mA to 8A
.04
.50
%
Minimum Load Current
VIN = 5V, VOUT = +1.5%
5
10
mA
(Note 1)
Adjust Pin Current
VIN = 2.75V, IOUT = 10mA
70
120
A
Current Limit
VIN = 2.75V, VOUT = -1.5%
8.1
9.0
A
Short Circuit Current
VIN = 2.75V, VOUT = 0V
6.0
8.5
A
Ripple Rejection
VIN = 3.25V Avg,
60
80
dB
(Note 2)
VRipple = 1VP-P @ 120Hz,
IOUT = 4A, CAdj = 0.1F; COUT = 22F
Thermal Regulation (Note 2)
30ms Pulse, TA = 25°C
0.002
%/W
Dropout Voltage
IOUT = 100mA
0.92
1.15
V
(Minimum VIN -VOUT)IOUT = 1A
0.93
1.15
V
(Note 3)
IOUT = 2.75A
0.94
1.15
V
IOUT = 4A
0.95
1.15
V
IOUT = 8A
0.96
1.30
V
RMS Output Noise
Freq = 10Hz to 10kHz, TA = 25°C
0.003
%VOUT
Temperature Stability
0.5
%
Thermal Shutdown (Note 4)
150
180
210
°C
Thermal Shutdown Hysteresis
25
°C
(Note 4)
Note 1: The minimum load current is the minimum current required to maintain regulation. Normally the current in the resistor
divider used to set the output voltage is selected to meet the minimum load current requirement.
Note 2: This parameter is guaranteed by design and is not 100% production tested.
Note 3: Dropout voltage is defined as the minimum input/output voltage differential required to maintain 1.5% regulation.
Note 4: This parameter is guaranteed by design, but not parametrically tested in production. However, a 100% thermal shutdown
functional test is performed on each part.
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