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LC-22LE240
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. LM1117(U175, U180, U181)
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.1. General Description
The LM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA
of load current. It has the same pin-out as National Semiconductor’s industry standard
LM317. The LM1117 is available in an adjustable version, which can set the output
voltage from 1.25V to 13.8V with only two external resistors. In addition, it is also
available in five fixed voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V. The LM1117 offers
current limiting and thermal shutdown. Its circuit includes a zener trimmed bandgap
reference to as-sure output voltage accuracy to within ±1%. The LM1117 series is
available in SOT- 223, TO-220, and TO-252 D-PAK packages. A minimum of 10μF
tantalum capacitor is required at the output to improve the transient response and
stability.
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.2. Features
Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable Versions
Space Saving SOT-223 Package
Current Limiting and Thermal Protection
Output Current 800mA
Line Regulation 0.2% (Max)
Load Regulation 0.4% (Max)
Temperature Range
LM1117 0°C to 125°C
LM1117I -40°C to 125°C
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.3. Applications
2.85V Model for SCSI-2 Active Termination
Post Regulator for Switching DC/DC Converter
High Efficiency Linear Regulators 15
32” TFT TV Service Manual 10/01/2005
Battery Charger
Battery Powered Instrumentation
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.4. Absolute Maximum Ratings
12.5. Pinning
13. MP2012 (U176)
13.1. General Description
The MP2012 is a fully integrated, internally compensated 1.2MHz fixed frequency PWM
step-down converter. It is ideal for powering portable equipment that runs from a single
cell Lithium-Ion (Li+) Battery, with an input range from 2.7V to 6V. The MP2012 can
provide up to 1.5A of load current with output voltage as low as 0.8V. It can also operate
at 100% duty cycle for low dropout applications. With peak current mode control and
internal compensation, the MP2012 is stable with ceramic capacitors and small inductors.
Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
13.2. Features
2.7-6V Input Operation Range
Output Adjustable from 0.8V to VIN
1μA Max Shutdown Current.
Up to 95% Efficiency
100% Duty Cycle for Low Dropout
Applications
1.2MHz Fixed Switching Frequency
Stable with Low ESR Output Ceramic
Capacitors
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Short Circuit Protection
Available in 6-pin 3x3mm QFN
13.3. Pinning
Содержание LC-22LE240E
Страница 17: ...17 LC 22LE240 0 1 General Block Diagram 1 General Block Diagram ...
Страница 22: ...22 LC 22LE240 2 3 Absolute Ratings 2 3 1 Electrical Characteristics ...
Страница 23: ...23 LC 22LE240 2 3 2 Operating Specifications 2 4 Pinning 3 AUDIO AMPLIFIER STAGE WITH TPA3113 U168 ...
Страница 25: ...25 LC 22LE240 3 3 2 Operating Specifications 3 4 Pinning ...
Страница 29: ...29 LC 22LE240 4 1 Power Management MB62 Power Management with Adaptor MB62 Power Management with PW25 PW26 ...
Страница 30: ...30 LC 22LE240 MB62 Power Management with IPS16 IPS17 IPS60 PW05 MB62 Power Management with PW03 PW04 PW07 ...
Страница 38: ...38 LC 22LE240 Pinning 8 3 Pinning ...
Страница 50: ...50 LC 22LE240 18 2 HDMI CN707 CN708 18 3 VGA CN711 ...
Страница 52: ...52 LC 22LE240 19 1 Video Settings 19 1 Video Setting 19 2 Audio Settings 19 2 Audio Settings ...
Страница 53: ...53 LC 22LE240 19 3 Options 19 3 Options Options 1 Options 1 Options 2 Options 2 ...
Страница 54: ...54 LC 22LE240 19 4 Tuning Settings 19 5 Source Settings 19 4 Tuning Settings 19 5 Source Settings ...
Страница 74: ...74 LC 22LE240 POWER SUPPLY Diagram 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I H G F E D C B A ...
Страница 75: ...75 LC 22LE240 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I H G F E D C B A Led Converter Diagram ...
Страница 76: ...76 LC 22LE240 24 PRINTED WIRING BOARD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I H G F E D C B A ...