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參數資料
| 型號： | TC573302ECT |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Line Regulator Controller |
| 中文描述： | 線路穩壓控制器 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 462K |
| 代理商： | TC573302ECT |
2002 Microchip Technology Inc.
DS21437B-page 1
TC57
Features
Low Dropout Voltage: 100mV @ 650mA with
FZT749 PNP Transistor
2.7V to 8V Supply Range
Low Operating Current: 50
μ
A Operating,
0.2
μ
A Shutdown
Low True Chip Enable
Output Accuracy < ±2%
Small Package: 5-Pin SOT-23A
Applications
Battery Operated Systems
Portable Instruments
High-Efficiency Linear Regulator
Post-Regulator for SMPS
Power Supply or Battery Back-Up Supply for
Memory
Device Selection Table
Other output voltages and package options are available.
Please contact Microchip Technology Inc. for details.
Package Type
General Description
The TC57 is a low dropout regulator controller that
operates with an external PNP pass transistor, allowing
the user to tailor the LDO characteristics to suit the
application at hand. This results in lower dropout
operation (and often lower cost) compared with
traditional
linear
regulators
transistors. The maximum output current of a TC57-
based
regulator
circuit
characteristics of the external pass transistor. For
example, a maximum output current of 650mA (with a
dropout voltage of 100mV) results when an FZT749
pass transistor is used, while a Darlington configuration
can deliver up to 4A.
with
on-board
pass
is
limited
only
by
the
Flexibility, and superior performance make this family
of regulator controllers the ideal choice in applications
where low dropout voltage and low installed cost are
key.
Functional Block Diagram
Part Number
Output
Voltage
Package
Temperature
Range
TC572502ECT
TC573002ECT
TC573302ECT
2.5V
3.0V
3.3V
5-Pin SOT-23A -40°C to +85°C
5-Pin SOT-23A -40°C to +85°C
5-Pin SOT-23A -40°C to +85°C
SHDN
5
5-Pin SOT-23A
TC57
1
3
4
EXT
2
V
IN
V
OUT
GND
NOTE:
5-Pin SOT-23A is equivalent to the EIAJ SC-74A.
TC573002ECT
V
OUT
GND
1
SHDN
V
IN
EXT
C
IN
10
μ
F
(Tantalum)
FQ1
R
B
1K
4
C
L
10
μ
F
(Tantalum)
R
L
V
IN
+3.3V
R
BE
47K
2
ON
OFF
3
5
V
OUT
+3V
3.3V Line Input, 3.0V, 500mA Output LDO
Line Regulator Controller
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TC573302ECTTR | 功能描述:低壓差控制器 - LDO 3.3V Linear Cntrller RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負載調節: 輸出類型:Adjustable, Fixed 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
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| TC57512AD-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:65,536 WORDS x 8 BITS CMOS UV ERASABLE AND ELECTRICALLY PROGRAMMABLE READ ONLY MEMORY |
| TC57A | 制造商:CDE 制造商全稱:Cornell Dubilier Electronics 功能描述:Axial Leaded Aluminum Electrolytic Capacitors |
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