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参数资料
型号： REG1117FA/KTTT
厂商： TEXAS INSTRUMENTS INC
元件分类： 可调正电压单路输出LDO稳压器
英文描述： 1.225 V-1.28 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.55 V DROPOUT, PSSO3
封装： PLASTIC, TO-263, D2PAK-3
文件页数： 17/22页
文件大小： 655K
代理商： REG1117FA/KTTT
REG1117
REG1117A
SBVS001D OCTOBER 1992 REVISED JULY 2004
www.ti.com
4
ELECTRICAL CHARACTERISTICS
At TJ = +25°C, unless otherwise noted.
REG1117, REG1117A
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
OUTPUT VOLTAGE
REG1117-2.85
IO = 10mA, VIN = 4.85V
2.820
2.85
2.880
V
See Note 1
IO = 0 to 800mA, VIN = 4.05V to 10V
2.790
2.85
2.910
V
REG1117-3.3
IO = 10mA, VIN = 5.3V
3.270
3.30
3.330
V
See Note 1
IO = 0 to 800mA, VIN = 4.8V to 10V
3.240
3.30
3.360
V
REG1117-5
IO = 10mA, VIN = 7V
4.950
5.00
5.050
V
See Note 1
IO = 0 to 800mA, VIN = 6.5V to 10V
4.900
5.00
5.100
V
REG1117A-1.8
IO = 10mA, VIN = 3.8V
1.782
1.8
1.818
V
See Note 1
IO = 0 to 1A, VIN = 3.8V to 10V
1.764
1.8
1.836
V
REG1117A-2.5
IO = 10mA, VIN = 4.5V
2.475
2.5
2.525
V
See Note 1
IO = 0 to 1A, VIN = 4.5V to 10V
2.450
2.5
2.550
V
REG1117A-5
IO = 10mA, VIN = 7V
4.950
5.0
5.050
V
See Note 1
IO = 0 to 1A, VIN = 7V to 10V
4.900
5.0
5.100
V
REFERENCE VOLTAGE
REG1117 (Adjustable)
IO = 10mA, VIN VO = 2V
1.238
1.250
1.262
V
See Note 1
IO = 10 to 800mA, VIN VO = 1.4 to 10V
1.225
1.250
1.280
V
REG1117A (Adjustable)
IO = 10mA, VIN VO = 2V
1.238
1.250
1.262
V
See Note 1
IO = 10mA to 1A, VIN VO = 1.4 to 10V
1.225
1.250
1.280
V
LINE REGULATION
REG1117-2.85(1)
IO = 0, VIN = 4.25 to 10V
1
7
mV
REG1117-3.3(1)
IO = 0, VIN = 4.8 to 10V
2
7
mV
REG1117-5(1)
IO = 0, VIN = 6.5 to 15V
3
10
mV
REG1117 (Adjustable)(1)
IO = 10mA, VIN VO = 1.5 to 13.75V
0.1
0.4
%
REG1117A (Adjustable)(1)
IO = 10mA, VIN VO = 1.5 to 13.75V
0.1
0.4
%
REG1117A-1.8(1)
IO = 0, VIN = 3.8V to 10V
1
7
mV
REG1117A-2.5(1)
IO = 0, VIN = 4.5V to 10V
1
7
mV
REG1117A-5.0(1)
IO = 0, VIN = 7V to 15V
3
10
mV
LOAD REGULATION
REG1117-2.85(1)
IO = 0 to 800mA, VIN = 4.25V
2
10
mV
REG1117-3.3(1)
IO = 0 to 800mA, VIN = 4.8V
3
12
mV
REG1117-5(1)
IO = 0 to 800mA, VIN = 6.5V
3
15
mV
REG1117 (Adjustable)(1)(2)
IO = 10 to 800mA, VIN VO = 3V
0.1
0.4
%
REG1117A (Adjustable)(1)(2)
IO = 10mA to 1A, VIN VO = 3V
0.1
0.4
%
REG1117A-1.8(1)
IO = 0 to 1A, VIN = 3.8V
2
10
mV
REG1117A-2.5
IO = 0 to 1A, VIN = 4.5V
2
10
mV
REG1117A-5
IO = 0 to 1A, VIN = 7.0V
3
15
mV
DROPOUT VOLTAGE(3)
All Models(1)
IO = 100mA
1.00
1.10
V
See Note 1
IO = 500mA
1.05
1.15
V
REG1117 Models(1)
IO = 800mA
1.10
1.20
V
REG1117A
IO = 1A
1.2
1.30
V
See Note 1
IO = 1A
1.2
1.55
V
(1) Specification applies over the full specified junction temperature range, 0°C to +125°C.
(2) REG1117 and REG1117A adjustable versions require a minimum load current for ±3% regulation.
(3) Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.
(4) Percentage change in unloaded output voltage before versus after a 30ms power pulse of IO = 800mA (REG1117 models), IO = 1A (REG1117A),
VIN VO = 1.4V (reading taken 10ms after pulse).
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