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參數資料
| 型號： | TC10735.0VCT713 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 50mA and 100mA CMOS LDOs with Shutdown, ERROR Output and VREF Bypass |
| 中文描述： | 為50mA和100mA的CMOS低壓降穩壓器具有關斷功能，錯誤輸出和VREF繞道 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 651K |
| 代理商： | TC10735.0VCT713 |
2007 Microchip Technology Inc.
DS21354D-page 1
TC1072/TC1073
Features:
50 μA Ground Current for Longer Battery Life
Very Low Dropout Voltage
Choice of 50 mA (TC1072) and 100 mA (TC1073)
Output
High Output Voltage Accuracy
Standard or Custom Output Voltages
Power-Saving Shutdown Mode
ERROR Output Can Be Used as a Low Battery
Detector or Processor Reset Generator
Bypass Input for Ultra Quiet Operation
Overcurrent and Overtemperature Protection
Space-Saving 6-Pin SOT-23 Package
Pin Compatible Upgrades for Bipolar Regulators
Standard Output Voltage Options:
- 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V,
3.3V, 3.6V, 4.0V, 5.0V
Other output voltages are available. Please
contact Microchip Technology Inc. for details.
Applications:
Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular/GSM/PHS Phones
Linear Post-Regulators for SMPS
Pagers
Typical Application Circuit
General Description
The TC1072 and TC1073 are high accuracy (typically
±0.5%) CMOS upgrades for older (bipolar) low dropout
regulators. Designed specifically for battery-operated
systems, the devices’ CMOS construction eliminates
wasted ground current, significantly extending battery
life. Total supply current is typically 50 μA at full load
(20 to 60 times lower than in bipolar regulators).
The devices’ key features include ultra low noise
operation (plus optional Bypass input); very low
dropout voltage (typically 85 mV, TC1072 and 180 mV,
TC1073 at full load) and fast response to step changes
in load. An error output (ERROR) is asserted when the
devices are out-of-regulation (due to a low input
voltage or excessive output current). ERROR can be
used as a low battery warning or as a processor
RESET signal (with the addition of an external RC
network). Supply current is reduced to 0.5 μA (max)
and both V
OUT
and ERROR are disabled when the
shutdown input is low. The devices incorporate both
overtemperature and overcurrent protection.
The TC1072 and TC1073 are stable with an output
capacitor of only 1 μF and have a maximum output
current of 50 mA, and 100 mA, respectively. For higher
output current versions, please see the TC1185,
TC1186, TC1187 (I
OUT
= 150 mA) and TC1107,
TC1108 and TC1173 (I
OUT
= 300 mA) data sheets.
Package Type
TC1072
TC1073
V
OUT
GND
1
μ
F
+
V
IN
V
IN
V
OUT
1
6
2
4
3
SHDN
Shutdown Control
(from Power Control Logic)
ERROR
ERROR
Bypass
C
470 pF
5
R
P
6
1
4
2
3
6-Pin SOT-23
V
OUT
ERROR
SHDN
GND
V
IN
5
Bypass
50mA and 100mA CMOS LDOs with Shutdown, ERROR Output and V
REF
Bypass
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