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| 型號(hào)： | LP2986IMM-3.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage Regulator |
| 中文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO8 |
| 封裝： | MINI, PLASTIC, SO-8 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大小： | 412K |
| 代理商： | LP2986IMM-3.0 |
Electrical Characteristics
(Continued)
Limits in standard typeface are for T
= 25C, and limits in
boldface type
apply over the full operating temperature range. Un-
less otherwise specified: V
IN
= V
O
(NOM) + 1V, I
L
= 1 mA, C
OUT
= 4.7 μF, C
IN
= 2.2 μF, V
S/D
= 2V.
Symbol
Parameter
Conditions
Typical
LM2986AI-X.X
(Note 6)
Min
LM2986I-X.X
(Note 6)
Min
Units
Max
Max
Output Voltage
Temperature Coefficient
(Note 9)
20
ppm/C
FEEDBACK PIN
V
FB
Feedback Pin Voltage
1.23
1.21
1.20
1.19
1.25
1.26
1.28
1.20
1.19
1.18
1.26
1.27
1.29
V
(Note 10)
(Note 9)
1.23
FB Pin Voltage
Temperature Coefficient
20
ppm/C
I
FB
Feedback Pin Bias
Current
I
L
= 200 mA
150
330
760
330
760
nA
FB Pin Bias Current
Temperature Coefficient
(Note 9)
0.1
nA/C
SHUTDOWN INPUT
V
S/D
S/D Input Voltage
(Note 8)
V
H
= O/P ON
V
L
= O/P OFF
V
S/D
= 0
V
S/D
= 5V
1.4
0.55
0
5
1.6
1.6
V
0.18
1
15
0.18
1
15
I
S/D
S/D Input Current
μA
ERROR COMPARATOR
I
OH
Output “HIGH” Leakage
V
OH
= 16V
0.01
1
2
1
2
μA
V
OL
Output “LOW” Voltage
V
IN
= V
O
(NOM) 0.5V,
I
O
(COMP) = 300 μA
150
220
350
3.5
2.5
4.9
3.3
220
350
3.5
2.5
4.9
3.3
mV
V
THR
(MAX)
Upper Threshold
Voltage
4.6
5.5
7.7
8.9
13.0
5.5
7.7
8.9
13.0
%V
OUT
V
THR
(MIN)
Lower Threshold
Voltage
6.6
HYST
Hysteresis
2.0
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the de-
vice outside of its rated operating conditions.
Note 2:
The ESD rating of the Feedback pin is 500V and the Tap pin is 1.5 kV.
Note 3:
The maximum allowable power dissipation is a function of the maximum junction temperature, T
J
(MAX), the junction-to-ambient thermal resistance,
θ
JA
,
and the ambient temperature, T
A
. The maximum allowable power dissipation at any ambient temperature is calculated using:
The value of
θ
JA
for the SO-8 (M) package is 160C/W, and the mini SO-8 (MM) package is 200C/W. Exceeding the maximum allowable power dissipation will cause
excessive die temperature, and the regulator will go into thermal shutdown.
Note 4:
If used in a dual-supply system where the regulator load is returned to a negative supply, the LM2986 output must be diode-clamped to ground.
Note 5:
The output PNP structure contains a diode between the V
and V
terminals that is normally reverse-biased. Forcing the output above the input will turn
on this diode and may induce a latch-up mode which can damage the part (see Application Hints).
Note 6:
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 Average Outgoing Quality Level (AOQL).
Note 7:
Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below the value measured with a 1V differential.
Note 8:
To prevent mis-operation, the Shutdown input must be driven by a signal that swings above V
H
and below V
L
with a slew rate not less than 40 mV/μs (see
Application Hints).
Note 9:
Temperature coefficient is defined as the maximum (worst-case) change divided by the total temperature range.
Note 10:
V
FB
≤
V
OUT
≤
(V
IN
1), 2.5V
≤
V
IN
≤
16V, 100 μA
≤
I
L
≤
200 mA, T
J
≤
125C.
Note 11:
See Typical Performance Characteristics curves.
www.national.com
5
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| LP2986IMM-5.0 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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