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| 型号： | LP3875ET-ADJ/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1.5A TO220-5 |
| 标准包装： | 45 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 可调 |
| 输入电压： | 2.5 V ~ 7 V |
| 电压 - 压降（标准）： | 0.38V @ 1.5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.5A（最小值） |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-5 成形引线 |
| 供应商设备封装： | TO-220-5 |
| 包装： | 管件 |
| 其它名称： | *LP3875ET-ADJ *LP3875ET-ADJ/NOPB LP3875ET-ADJ |
SNVS247D – SEPTEMBER 2003 – REVISED APRIL 2013
ELECTRICAL CHARACTERISTICS — LP3875-ADJ
Limits in standard typeface are for T J = 25°C, and limits in boldface type apply over the full operating temperature range .
Unless otherwise specified: V IN = V O(NOM) + 1V, I L = 10 mA, C OUT = 10μF, V SD = 2V.
LP3875-ADJ
Symbol
Parameter
Conditions
Typ
(1)
Min Max
(2)
Units
V ADJ
I ADJ
Δ V OL
Δ V O / Δ I OUT
Adjust Pin Voltage
Adjust Pin Input Current
Output Voltage Line Regulation
Output Voltage Load Regulation
(3)
(3)
V OUT +1V ≤ V IN ≤ 7V
10 mA ≤ I L ≤ 1.5A
V OUT +1V ≤ V IN ≤ 7V
10 mA ≤ I L ≤ 1.5A
V OUT +1V ≤ V IN ≤ 7.0V
10 mA ≤ I L ≤ 1.5A
1.216
10
0.02
0.06
0.06
0.12
1.198
1.180
1.234
1.253
100
V
nA
%
%
V IN - V OUT
Dropout Voltage
(4)
I L = 150 mA
I L = 1.5A
38
380
50
60
450
550
mV
I GND
I GND
I O(PK)
Ground Pin Current In Normal
Operation Mode
Ground Pin Current In Shutdown
Mode
Peak Output Current
I L = 150 mA
I L = 1.5A
V SD ≤ 0.3V
-40°C ≤ T J ≤ 85°C
V O ≥ V O(NOM) - 4%
5
6
0.01
1.8
9
10
14
15
10
50
mA
μA
A
Short Circuit Protection
I SC
Short Circuit Current
3.2
A
Shutdown Input
V SDT
T dOFF
T dON
I SD
Shutdown Threshold
Turn-off delay
Turn-on delay
SD Input Current
Output = High
Output = Low
I L = 1.5A
I L = 1.5A
V SD = V IN
V IN
0
20
25
1
2
0.3
V
μs
μs
nA
AC Parameters
V IN = V OUT + 1V
C OUT = 10uF
73
PSRR
Ripple Rejection
V OUT = 3.3V, f = 120Hz
V IN = V OUT + 0.5V
57
dB
C OUT = 10uF
V OUT = 3.3V, f = 120Hz
ρ n(l/f)
e n
Output Noise Density
Output Noise Voltage
f = 120Hz
BW = 10Hz – 100kHz, V OUT = 2.5V
BW = 300Hz – 300kHz, V OUT = 2.5V
0.8
150
100
μV
μV (rms)
(1)
(2)
(3)
(4)
Typical numbers are at 25°C and represent the most likely parametric norm.
Limits are specified by testing, design, or statistical correlation.
Output voltage line regulation is defined as the change in output voltage from the nominal value due to change in the input line voltage.
Output voltage load regulation is defined as the change in output voltage from the nominal value due to change in load current.
Dropout voltage is defined as the minimum input to output differential voltage at which the output drops 2% below the nominal value.
Dropout voltage specification applies only to output voltages of 2.5V and above. For output voltages below 2.5V, the drop-out voltage is
nothing but the input to output differential, since the minimum input voltage is 2.5V.
4
Product Folder Links: LP3875-ADJ
Copyright ? 2003–2013, Texas Instruments Incorporated
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| LP3876 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3A Fast Ultra Low Dropout Linear Regulators |
| LP3876-ADJ | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3A Fast Ultra Low Dropout Linear Regulator |
| LP3876ES-1.8 | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP3876ES-1.8/NOPB | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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