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产品型号L1087C的Datasheet PDF文件预览

0.8A Fixed and Adjustable Low Dropout L1087 Series  
NIKO-SEM  
SOT-89,TO-92  
Linear Regulator (LDO)  
GENERAL DESCRIPTION  
FEATURES  
The L1087 Series are positive and low  
dropout three-terminal voltage regulators  
with 0.8A output current capability. These  
devices are designed for use in low voltage  
applications that offers lower dropout volt-  
age and faster transient response.  
Fixed 3.3V or adjustable output voltage  
Low dropout voltage  
Low ground current  
z
z
z
z
z
z
z
z
Fast transient response  
Current & thermal limiting  
Line regulation: 0.5% typical  
Load regulation: 0.5% typical  
Available in SOT-89 & TO-92 package  
These devices are fully protected against  
over current faults, over temperature oper-  
ation, reversed input polarity, reversed lead  
insertion, transient voltage spike …etc.  
APPLICATIONS  
Low voltage micro-controllers  
Battery Chargers  
5V to 3.3V linear regulators  
Motherboard clock supplies  
Post regulator for switching supplies  
z
z
z
z
z
On-Chips trimming the reference voltage to  
1% and features the low dropout of maxi-  
mum 1.45 volts.  
The L1087 Series regulators offer fixed and  
adjustable voltage options available in the  
space saving SOT-89 & TO-92 package.  
TYPICAL APPLICATION  
Vin  
Vout  
Vin > 4.75V  
L1087  
ADJ  
IN  
Vout = 3.3V  
IN  
OUT  
L1087-3.3  
GND  
OUT  
Vref  
R1  
R2  
Cin  
Cout  
10uF  
Cin  
Cout  
10uF  
+
+
+
+
RL  
10uF  
10uF  
Iadj  
Vo = Vref (1+R2/R1) + Iadj x R2  
1. Cin needed if device is far from filter capacitors.  
2. Cout required for stability.  
1. Cin needed if device is far from filter capacitors.  
2. Cout required for stability.  
- Basic Adjustable Regulator Circuit -  
- Fixed Voltage Regulator -  
AUG-30-2001  
1
0.8A Fixed and Adjustable Low Dropout L1087 Series  
NIKO-SEM  
SOT-89,TO-92  
Linear Regulator (LDO)  
ABSOLUTE MAXIMUM RATINGS  
Operating Junction  
Temperature Range  
Storage Temperature  
Range  
Lead Temperature  
(Soldering, 10 Seconds)  
z
z
Maximum Supply Voltage  
15V*  
0 to 125 °C  
z
Internally  
Limited  
Power Dissipation  
-40 to 150 °C  
z
z
Thermal Resistance  
z
18 °C/W  
260 °C  
Junction to Case,  
θJC  
Thermal Resistance  
Junction to Ambient,  
z
160 °C/W  
θJA  
* When considering short circuits to ground, the maximum input-to-output differential voltage shall not be allowed  
greater than approximate 2~3V at values of supply voltage in excess of 10V, continuous short-circuits can exceed  
the power dissipation ratings and cause eventual destruction.  
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TA = 25 °C)  
Parameter  
Symbol  
Test Conditions  
Typical  
1.25V  
VO  
Limits  
Reference Voltage  
(Adjustable version)  
Output Voltage  
(Fixed version)  
Dropout Voltage  
Line Regulation  
Load Regulation  
1.23VMin  
1.27VMax  
0.98VO(Min)  
1.02VO(Max)  
1.45V  
VREF VIN = 5V, IOUT = 10mA  
VO  
VIN = 5V, IOUT = 10mA  
REF = 1%, IOUT = 0.8A  
VD  
REG(LINE)  
1.2V  
0.5%  
0.5%  
V
Δ
2%  
2.5%  
(VOUT + 1.5V) V  
15V, IOUT = 10mA  
IN  
REG  
(LOAD) (V -V ) = 2V, 10mA I  
OUT  
0.8A  
IN  
OUT  
Minimum Load  
Current  
Adjust Pin Current  
IO  
IADJ  
ICL  
10mA  
1.5V (V -V ) 5.75V  
IN  
OUT  
55 A  
100 A  
µ
µ
Current Limit  
VIN - VOUT = 2V  
1.2A  
0.9A (Min)  
0.003%  
of VOUT  
RMS Output Noise  
VN  
RA  
Ripple Rejection  
Ratio  
f = 120Hz, CADJ = 22 F for ADJ pin,  
VIN = 5V, IOUT = 0.8A  
µ
72dB  
60dB (Min)  
AUG-30-2001  
2
0.8A Fixed and Adjustable Low Dropout L1087 Series  
NIKO-SEM  
SOT-89,TO-92  
Linear Regulator (LDO)  
ELECTRICAL CHARACTERISTICS FOR FIXED 3.3V(Unless otherwise specified, TA = 25 °C)  
Parameter  
Symbol  
Test Conditions  
Typical  
Limits  
Output Voltage  
(Fixed version)  
Dropout Voltage  
Line Regulation  
Load Regulation  
3.234V(Min)  
3.367V(Max)  
1.45V  
VO  
VIN = 5V, IOUT = 10mA  
V = 1%, IOUT = 0.8A  
VO  
VD  
REG(LINE)  
1.2V  
0.5%  
0.5%  
Δ
O
2.0%  
2.0%  
(VOUT + 1.5V) V  
15V, IOUT = 10mA  
IN  
REG  
(LOAD) (V -V ) = 2V, 10mA I  
OUT  
0.8A  
IN  
OUT  
Minimum Load  
Current  
GND Pin Current  
IO  
IGND  
ICL  
10mA  
1.5V (V -V ) 5.75V  
IN  
OUT  
55 A  
100 A  
µ
µ
Current Limit  
VIN - VOUT = 2V  
1.2A  
0.9A (Min)  
0.003%  
of VOUT  
RMS Output Noise  
VN  
RA  
Ripple Rejection  
Ratio  
f = 120Hz, Co=22Uf,VIN = 5V,  
IOUT = 0.8A  
72dB  
60dB (Min)  
DEVICE SELECTION GUIDE  
Device  
L1087C  
L1087C-3.3  
3.3V  
L1087N-3.3  
3.3V  
Voltage Version Adjustable  
Package  
Marking  
SOT-89  
L1087  
SOT-89  
87-3.3  
TO-92  
87N-3.3  
AUG-30-2001  
3
0.8A Fixed and Adjustable Low Dropout L1087 Series  
NIKO-SEM  
SOT-89,TO-92  
Linear Regulator (LDO)  
PIN CONFIGURATIONS  
Pin #  
Function  
Adjust/Ground  
Output  
1
2
3
Input  
Note: TAB is Output Pin  
Pin #  
Function  
Output  
1
2
3
Adjust/Ground  
Input  
AUG-30-2001  
4
0.8A Fixed and Adjustable Low Dropout L1087 Series  
NIKO-SEM  
SOT-89,TO-92  
Linear Regulator (LDO)  
SOT-89 MECHANICAL DATA  
mm  
Typ.  
4.5  
mm  
Typ.  
1.5  
3.0  
1.5  
4.2  
0.4  
Dimension  
Dimension  
Min.  
Max.  
4.7  
1.8  
0.6  
2.6  
1.4  
0.5  
0.6  
Min.  
1.4  
2.8  
1.3  
3.8  
0.3  
Max.  
1.6  
3.2  
1.7  
4.6  
0.5  
A
B
C
D
E
F
4.3  
1.6  
0.4  
2.4  
0.8  
0.4  
0.4  
H
I
1.7  
0.5  
J
2.5  
K
L
1.2  
0.45  
0.5  
M
N
G
AUG-30-2001  
5
0.8A Fixed and Adjustable Low Dropout L1087 Series  
NIKO-SEM  
SOT-89,TO-92  
Linear Regulator (LDO)  
TO-92 MECHANICAL DATA  
mm  
mm  
Typ.  
Dimension  
Dimension  
Min.  
Typ.  
Max.  
5.207  
5.334  
15.5  
Min.  
Max.  
2.667  
0.533  
A
B
C
D
E
F
4.445  
4.318  
12.7  
H
I
2.413  
0.356  
2.540  
J
0.356  
1.143  
3.175  
0.762  
0.533  
1.397  
4.191  
1.270  
K
L
1.27  
M
N
G
AUG-30-2001  
6
配单直通车
L1090B产品参数
型号:L1090B
生命周期:Obsolete
IHS 制造商:ADVANCED CONTROL COMPONENTS INC
Reach Compliance Code:unknown
风险等级:5.83
其他特性:SMA-F
特性阻抗:50 Ω
构造:COAXIAL
增益:27 dB
最大工作频率:1090 MHz
最小工作频率:1040 MHz
最高工作温度:70 °C
最低工作温度:-50 °C
射频/微波设备类型:NARROW BAND LOW POWER
最大电压驻波比:2
Base Number Matches:1
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