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參數(shù)資料
| 型號(hào)： | TC1224-XXVCT |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 50mA and 100mA CMOS LDOs with Shutdown |
| 中文描述： | 為50mA和100mA的CMOS低壓降穩(wěn)壓器，帶有關(guān)斷 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 487K |
| 代理商： | TC1224-XXVCT |
2002 Microchip Technology Inc.
DS21368B-page 1
TC1223/TC1224
Features
Extremely Low Ground Current for Longer Battery
Life
Very Low Dropout Voltage
Choice of 50mA and 100mA Output (TC1223,
TC1224, Respectively)
High Output Voltage Accuracy
Standard or Custom Output Voltages
Power Saving Shutdown Mode
Over Current and Over Temperature Protection
Space-Saving 5-Pin SOT-23A Package
Pin Compatible Upgrades for Bipolar Regulators
Applications
Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular/GSM/PHS Phones
Pagers
Device Selection Table
NOTE:
xx indicates output voltages
Available Output Voltages: 2.5, 2.7, 2.8, 2.85, 3.0, 3.3, 3.6,
4.0, 5.0.
Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Package Type
General Description
The TC1223 and TC1224 are high accuracy (typically
±0.5%) CMOS upgrades for older (bipolar) low dropout
regulators such as the LP2980. Designed specifically
for battery-operated systems, the devices’ CMOS
construction
eliminates
significantly extending battery life. Total supply current
is typically 50
μ
A at full load (20 to 60 times lower than
in bipolar regulators).
wasted
ground
current,
The devices’ key features include ultra low noise
operation; very low dropout voltage (typically 85mV,
TC1223 and 180mV, TC1224 at full load) and fast
response to step changes in load. Supply current is
reduced to 0.5
μ
A (max) and V
OUT
falls to zero when
the shutdown input is low. The devices incorporate both
over temperature and over current protection.
The TC1223 and TC1224 are stable with an output
capacitor of only 1
μ
F and have a maximum output
current of 50mA and 100mA respectively. For higher
output current versions, please see the TC1107,
TC1108 and TC1173 (I
OUT
= 300mA) data sheets.
Typical Application
Part Number
Package
Junction
Temp. Range
TC1223-xxVCT
TC1224-xxVCT
5-Pin SOT-23A
5-Pin SOT-23A
-40°C to +125°C
-40°C to +125°C
5-Pin SOT-23A
SHDN
5
TC1223
TC1224
1
3
4
2
V
IN
V
OUT
GND
NC
NOTE:
5-Pin SOT-23A is equivalent to the EIAJ (SC-74A)
TC1223
TC1224
V
OUT
SHDN
GND
NC
1
μ
F
+
V
IN
V
IN
V
OUT
1
5
2
4
3
Shutdown Control
(from Power Control Logic)
50mA and 100mA CMOS LDOs with Shutdown
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