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參數(shù)資料
| 型號(hào)： | LP3996SD-3308 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Dual Linear Regulator with 300mA and 150mA Outputs and Power-On-Reset |
| 中文描述： | DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, DSO10 |
| 封裝： | 3 X 3 MM, LEAD FREE, LLP-10 |
| 文件頁(yè)數(shù)： | 6/16頁(yè) |
| 文件大?。?/td> | 871K |
| 代理商： | LP3996SD-3308 |
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Electrical Characteristics
(Notes 2, 8) (Continued)
Unless otherwise noted, V
EN
= 950mV, V
IN
= V
OUT
+ 1.0V, or 2.0V, whichever is higher, where V
is the higher of V
and V
. C
= 1 μF, I
= 1 mA, C
= C
= 1.0μF. Typical values and limits appearing in normal type apply for T
A
= 25C. Limits appearing in
boldface
type apply over the full junction temperature range for operation, 40 to +125C.
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
Max
PSRR
Power Supply Rejection Ratio
(Note 11)
f = 1kHz, I
OUT
= 1mA to
150mA
C
BYP
= 10nF
f = 20kHz, I
OUT
= 1mA to
150mA
C
BYP
= 10nF
BW = 10Hz to
100kHz
C
BYP
= 10nF
Temperature
Hysteresis
LDO1
58
dB
LDO2
70
LDO1
45
LDO2
60
e
n
Output noise Voltage (Note 11)
V
OUT
= 0.8V
36
μV
RMS
V
OUT
= 3.3V
75
T
SHUTDOWN
Thermal Shutdown
160
20
C
Enable Control Characteristics
I
EN
Input Current at V
EN1
or V
EN2
V
EN
= 0.0V
V
EN
= 6V
0.005
2
0.1
5
μA
V
IL
Low Input Threshold at V
EN1
or
V
EN2
High Input Threshold at V
EN1
or
V
EN2
POR Output Characteristics
V
TH
Low Threshold % 0f V
OUT2 (NOM)
Flag ON
High Threshold % 0f V
OUT2
0.4
V
V
IH
0.95
V
88
%
(NOM)
Leakage Current
Flag Output Low Voltage
Flag OFF
96
I
POR
V
OL
Timing Characteristics
T
ON
Flag OFF, V
POR
= 6.5V
I
SINK
= 250μA
30
20
nA
mV
Turn On Time (Note 11)
To 95% Level
C
BYP
= 10nF
T
rise
= T
fall
= 10μs
δ
V
IN
= 1VC
BYP
= 10nF
T
rise
= T
fall
=
1μs
300
μs
Transient
Response
Line Transient Response |
δ
V
OUT
|
(Note 11)
Load Transient Response
|
δ
V
OUT
|
(Note 11)
20
mV
(pk - pk)
LDO 1
I
OUT
= 1mA to
150mA
LDO 2
I
OUT
= 1mA to
300mA
175
150
SET Input Characteristics
I
SET
V
TH(SET)
SET Pin Current Source
SET Pin Threshold Voltage
V
SET
= 0V
POR = High
1.3
1.25
μA
V
L
www.national.com
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| LP3996SD-3308/NOPB | 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 |
| LP3996SD-3333 | 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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