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參數(shù)資料
| 型號： | LM4121AIM5X-1.2 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Precision Micropower Low Dropout Voltage Reference |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.25 V, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數(shù)： | 4/16頁 |
| 文件大小： | 436K |
| 代理商： | LM4121AIM5X-1.2 |
Electrical Characteristics
LM4121-ADJ
Unless otherwise specified V
IN
= 3.3V, V
OUT
= V
REF
, I
LOAD
= 0, C
OUT
= 0.01μF, T
A
= T
j
= 25C. Lim-
its with standard typeface are for T
j
= 25C, and limits in
boldface type
apply over the 40C
≤
T
A
≤
+85C temperature
range.
Symbol
V
OUT
= V
REF
Parameter
Conditions
Min
(Note 5)
Typ
(Note 4)
Max
(Note 5)
Units
Output Voltage Initial
Accuracy
LM4121A-ADJ
LM4121-ADJ
Temperature Coefficient
Line Regulation
1.216
±
0.2
%
±
0.5
50
0.009
0.012
0.08
0.17
0.04
0.1
0.12
TCV
REF
/C
V
REF
/
V
IN
40C
≤
T
A
≤
+125C
1.8V
≤
V
IN
≤
12V
14
ppm/c
0.0007
%/V
V
OUT
/
I
LOAD
Load Regulation
0 mA
≤
I
LOAD
≤
1 mA
0.03
%/mA
1 mA
≤
I
LOAD
≤
5 mA
0.01
1 mA
≤
I
LOAD
≤
0 mA
5 mA
≤
I
LOAD
≤
1 mA
I
LOAD
= 5 mA
0.1 Hz to 10 Hz
10 Hz to 10 kHz
0.04
0.01
1.5
20
30
160
Min-V
IN
V
N
Minimum Operating Voltage
Output Noise Voltage (Note 6)
1.8
V
μV
PP
μV
RMS
μA
I
S
Supply Current
250
275
I
SS
Power-down Supply Current
V
IN
= 12V
Enable = 0.4V
Enable = 0.2V
(Note 7)
1
2
μA
I
BIAS
V
H
V
L
Reference Pin Bias Current
Logic High Input Voltage
Logic Low Input Voltage
15
1.6
40
1.5
0.4
nA
V
V
0.2
15
I
H
I
L
Logic High Input Current
Logic Low Input Current
7
μA
μA
0.1
15
I
SC
Short Circuit Current
V
OUT
= 0
mA
6
30
V
IN
= 12V, V
OUT
= 0
17
6
30
Hyst
Thermal Hysteresis
(Note 8)
Long Term Stability
(Note 9)
40C
≤
T
A
≤
125C
0.5
mV/V
V
OUT
1000 hrs.
@
25C
100
ppm
Note 1:
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The guar-
anteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2:
Without PCB copper enhancements. The maximum power dissipation must be de-rated at elevated temperatures and is limited by T
(maximum junction
temperature),
θ
(junction to ambient thermal resistance) and T
(ambient temperature). The maximum power dissipation at any temperature is: PDiss
MAX
= (T
JMAX
T
A
)/
θ
J-A
up to the value listed in the Absolute Maximum Ratings.
Note 3:
The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin. The machine model is a 200 pF capacitor discharged di-
rectly into each pin.
Note 4:
Typical numbers are at 25C and represent the most likely parametric norm.
Note 5:
Limits are 100% production tested at 25C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Averaging Outgoing Quality Level (AOQL).
Note 6:
Output noise for 1.25V option. Noise is proportional to V
OUT
.
Note 7:
Bias Current flows out of the Adjust pin.
Note 8:
Thermal hysteresis is defined as the change in +25C output voltage before and after exposing the device to temperature extremes.
Note 9:
Long term stability is change in V
REF
at 25C measured continuously during 1000 hrs.
L
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4121AIM5X-ADJ | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4121AIM5X-ADJ/NOPB | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4121IM5-1.2 | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4121IM5-1.2/NOPB | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4121IM5-ADJ | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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