參數(shù)資料
型號(hào): LT1020M
廠商: Linear Technology Corporation
英文描述: Quadruple 2-Input Positive-AND Gates With Open-Collector Outputs 14-SOIC 0 to 70
中文描述: 微調(diào)節(jié)器和比較
文件頁(yè)數(shù): 1/16頁(yè)
文件大?。?/td> 364K
代理商: LT1020M
1
LT1020
Micropower Regulator
and Comparator
S
FEATURE
I
40
μ
A Supply Current
I
125mA Output Current
I
2.5V Reference Voltage
I
Reference Output Sources 1mA and Sinks 0.5mA
I
Dual Output Comparator
I
Comparator Sinks 10mA
I
Dropout Detector
I
0.2V Dropout Voltage
I
Thermal Limiting
I
Available in SO Package
U
S
A
O
PPLICATI
I
Battery Systems
I
Battery Backup Systems
I
Portable Terminals
I
Portable Instruments
The LT1020 is a combination micropower positive regula-
tor and free collector comparator on a single monolithic
chip. With only 40
μ
A supply current, the LT1020 can
supply over 125mA of output current. Input voltage range
is from 4.5V to 36V and dropout voltage is 0.6V at 125mA.
Dropout voltage decreases with lower load currents. Also
included on the chip is a class B output 2.5V reference that
can either source or sink current. A dropout detector
provides an output current to indicate when the regulator
is about to drop out of regulation.
The dual output comparator can be used as a comparator
for system or battery monitoring. For example, the com-
parator can be used to warn of low system voltage while
the dropout detector shuts down the system to prevent
abnormal operation. Frequency compensation of the com-
parator for amplifier applications can be obtained by
adding external output capacitance. Dual output or posi-
tive and negative regulators can also be made.
The 2.5V reference will source or sink current. This allows
it to be used as a supply splitter or auxiliary output.
D
U
ESCRIPTIO
U
A
O
PPLICATI
TYPICAL
5V Regulator
Dropout Voltage and Supply Current
+
V
IN
> 5.2V
I
Q
= 40
μ
A
10
μ
F
10
μ
F
0.001
μ
F
1M
1M
5V
2
11
3
9
V
IN
V
OUT
FB
GND
+
LT1020
1020 TA01
OUTPUT CURRENT (mA)
0.1
0.01
D
0.1
1
10
1000
1020 TA02
1
100
0.1
1
10
S
相關(guān)PDF資料
PDF描述
LT1020MJ Micropower Regulator and Comparator
LT1021CMH-10 Precision Reference
LT1021BCH-10 Precision Reference
LT1021BCH-5 Precision Reference
LT1021BCH-7 Precision Reference
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