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參數(shù)資料
| 型號： | LP38842S-1.2 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1.5A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
| 中文描述： | 1.2 V FIXED POSITIVE LDO REGULATOR, 0.315 V DROPOUT, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 626K |
| 代理商： | LP38842S-1.2 |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Lead Temp. (Soldering, 5 seconds)
ESD Rating
Human Body Model (Note 3)
Machine Model (Note 9)
Power Dissipation (Note 2)
V
IN
Supply Voltage (Survival)
V
BIAS
Supply Voltage (Survival)
Shutdown Input Voltage (Survival)
65C to +150C
260C
2 kV
200V
Internally Limited
0.3V to +6V
0.3V to +7V
0.3V to +7V
I
OUT
(Survival)
Output Voltage (Survival)
Junction Temperature
Internally Limited
0.3V to +6V
40C to +150C
Operating Ratings
V
IN
Supply Voltage
Shutdown Input Voltage
I
OUT
Operating Junction
Temperature Range
V
BIAS
Supply Voltage
V
OUT
(V
OUT
+ V
DO
) to 5.5V
0 to +5.5V
1.5A
40C to +125C
4.5V to 5.5V
0.8V to 1.5V
Electrical Characteristics
over the full operating temperature range. Unless otherwise specified: V
IN
= V
O
(NOM) + 1V, V
BIAS
= 4.5V, I
L
= 10 mA, C
IN
=
10 μF CER, C
OUT
= 22 μF CER, C
BIAS
= 1 μF CER, V
S/D
= V
BIAS
. Min/Max limits are guaranteed through testing, statistical
correlation, or design.
Limits in standard typeface are for T
J
= 25C, and limits in
boldface type
apply
Symbol
Parameter
Conditions
MIN
TYP
(Note 4)
MAX
Units
V
O
Output Voltage Tolerance
10 mA
<
I
L
<
1.5A
V
O
(NOM) + 1V
≤
V
IN
≤
5.5V
4.5V
≤
V
BIAS
≤
5.5V
0.788
0.776
1.182
1.164
1.478
1.455
0.8
0.812
0.824
1.218
1.236
1.523
1.545
V
1.2
1.5
V
O
/
V
IN
Output Voltage Line Regulation
(Note 6)
Output Voltage Load Regulation
(Note 7)
Dropout Voltage (Note 8)
V
O
(NOM) + 1V
≤
V
IN
≤
5.5V
0.01
%/V
V
O
/
I
L
10 mA
<
I
L
<
1.5A
0.1
0.4
1.1
175
315
35
40
1
30
4
6
1
30
%/A
V
DO
I
L
= 1.5A
115
mV
I
Q
(V
IN
)
Quiescent Current Drawn from
V
IN
Supply
10 mA
<
I
L
<
1.5A
30
mA
V
S/D
≤
0.3V
0.06
μA
I
Q
(V
BIAS
)
Quiescent Current Drawn from
V
BIAS
Supply
10 mA
<
I
L
<
1.5A
2
mA
V
S/D
≤
0.3V
0.03
μA
I
SC
Shutdown Input
V
SDT
Short-Circuit Current
V
OUT
= 0V
4
A
Output Turn-off Threshold
Output = ON
Output = OFF
R
LOAD
X C
OUT
<<
Td (OFF)
R
LOAD
X C
OUT
<<
Td (ON)
V
S/D
=1.3V
V
S/D
≤
0.3V
TO-220, No Heatsink
TO-263, 1 sq.in Copper
0.7
0.7
20
15
1
1
65
35
1.3
V
0.3
Td (OFF)
Td (ON)
I
S/D
Turn-OFF Delay
Turn-ON Delay
S/D Input Current
μs
μA
θ
J-A
Junction to Ambient Thermal
Resistance
C/W
L
www.national.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LP38842SX-0.8 | 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38842SX-0.8/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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38842SX-1.2 | 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38842SX-1.2/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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38842SX-1.5 | 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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