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參數(shù)資料
| 型號： | TC1269-50VUA |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 300mA CMOS LDO with Shutdown and VREF Bypass |
| 中文描述： | 300mA的CMOS LDO穩(wěn)壓器具有關(guān)斷和VREF繞道 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 432K |
| 代理商： | TC1269-50VUA |
2002 Microchip Technology Inc.
DS21380B-page 1
TC1269
Features
Very Low Ground Current for Longer Battery Life
Very Low Dropout Voltage
300mA Output Circuit
High Output Voltage Accuracy
Standard or Custom Output Voltages
Power Saving Shutdown Mode
Bypass Input for Ultra Quiet Operation
Over Current and Over Temperature Protection
Space-Saving MSOP Package
Applications
Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular/GSM/PHS Phones
Linear Post-Regulator for SMPS
Pagers
Digital Cameras
Device Selection Table
*Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Package Type
General Description
The TC1269 is a fixed output, high accuracy (typically
±0.5%) CMOS upgrade for older (bipolar) low dropout
regulators. Total supply current is typically 50
μ
A at full
load (20 to 60 times lower than in bipolar regulators).
TC1269 key features include ultra low noise operation
(plus optional Bypass input); very low dropout voltage
(typically 240mV at full load), and fast response to step
changes in load. Supply current is reduced to 0.05
μ
A
(typical) and V
OUT
falls to zero when the shutdown
input is low.
The TC1269 incorporates both over temperature and
over current protection. The TC1269 is stable with an
output capacitor of only 1
μ
F and has a maximum
output current of 300mA.
Typical Application
Part Number
Output*
Voltage
(V)
Package
Junction
Temp. Range
TC1269-2.5VUA
TC1269-2.8VUA
TC1269-3.0VUA
TC1269-3.3VUA
TC1269-5.0VUA
2.5
2.8
3.0
3.3
5.0
8-Pin MSOP -40°C to +125°C
8-Pin MSOP -40°C to +125°C
8-Pin MSOP -40°C to +125°C
8-Pin MSOP -40°C to +125°C
8-Pin MSOP -40°C to +125°C
8-Pin MSOP
V
IN
SHDN
NC
Bypass
V
OUT
NC
NC
GND
TC1269
1
2
3
4
5
6
7
8
TC1269
1
2
3
4
6
7
8
V
OUT
V
OUT
C
470pF
(Optional)
Shutdown Control
(from Power
Control Logic)
C1
1
μ
F
NC
NC
GND
Bypass
V
IN
V
IN
NC
SHDN
+
300mA CMOS LDO with Shutdown and V
REF
Bypass
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