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부품번호 AAT3215IJS-30-T1 기능
기능 150mA CMOS High Performance LDO
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AAT3215IJS-30-T1 데이터시트, 핀배열, 회로
AAT3215
150mA CMOS High Performance LDO
General Description
The AAT3215 MicroPower™ Low Dropout Linear
Regulator is ideally suited for portable applications
where low noise, extended battery life and small
size are critical. The AAT3215 has been specifi-
cally designed for very low output noise perform-
ance, fast transient response and high power sup-
ply rejection ratio (PSRR), making it ideal for pow-
ering sensitive RF circuits.
Other features include low quiescent current, typi-
cally 95µA, and low dropout voltage which is typi-
cally less than 140mV at full output current. The
device is output short circuit protected and has a
thermal shutdown circuit for additional protection
under extreme conditions.
The AAT3215 also features a low-power shutdown
mode for extended battery life. A reference bypass
pin has been provided to improve PSRR perform-
ance and output noise, by connecting an external
capacitor from the AAT3215's reference output to
ground.
The AAT3215 is available in a space saving 5-pin
SOT-23 or 8-pin SC70-JW package in 8 factory
programmed voltages of 2.5V, 2.7V, 2.8V, 2.85V,
2.9V, 3.0V, 3.3V, or 3.5V.
Features
PowerLinear
• Low Dropout - 140mV at 150mA
• Guaranteed 150mA Output
• High accuracy ±1.5%
• 95µA Quiescent Current
• High Power Supply Ripple Rejection
• 70 dB at 1kHz
• 50 dB at 10kHz
• Very low self noise 45µVrms/rtHz
• Fast line and load transient response
• Short circuit protection
• Over-Temperature protection
• Uses Low ESR ceramic capacitors
• Noise reduction bypass capacitor
• Shutdown mode for longer battery life
• Low temperature coefficient
• 8 Factory programmed output voltages
• SOT-23 5-pin or SC70-JW 8-pin package
Applications
• Cellular Phones
• Notebook Computers
• Portable Communication Devices
• Personal Portable Electronics
• Digital Cameras
Typical Application
VIN
IN OUT
AAT3215
VOUT
ON/OFF EN
BYP
GND
1µF
10nF
2.2µF
GND
GND
3215.2002.03.0.91
1




AAT3215IJS-30-T1 pdf, 반도체, 판매, 대치품
AAT3215
150mA CMOS High Performance LDO
Typical Characteristics
(Unless otherwise noted, VIN = 5V, TA = 25°C)
Dropout Voltage vs. Temperature
200
180
160
140
120
100
80
60
40
20
0
-40
-20
IL=150mA
IL=100mA
IL=50mA
0 20 40 60 80
Temperature (°C)
100 120
Dropout Characteristics
3.1
IOUT=10mA
3.0 IOUT=0mA
2.9
IOUT=150mA
IOUT=100mA
2.8
IOUT=50mA
2.7
2.9
3.0 3.1
Vin
3.2
3.3
Dropout Voltage vs. Output Current
200
180
160
140
120
100
80
60
40
20
0
0
50 100
Output Current (mA)
150
Ground Current vs. Temperature
VOUT=3.0V
105
100
95
90
85
80
-50
0 50 100
Temperature (°C)
150
4
Ground Current vs. Input Voltage
120
VOUT=3.0V
100
80
IOUT=0
60
40
20
0
23
IOUT=5mA
IOUT=150mA
4
VIN
5
Output Voltage vs. Temperature
3.014
3.013
3.012
3.011
3.01
3.009
3.008
3.007
-50
0 50 100
Temperature (°C)
150
3215.2002.03.0.91

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AAT3215IJS-30-T1 전자부품, 판매, 대치품
Functional Block Diagram
AAT3215
150mA CMOS High Performance LDO
IN
EN
BYP
Over-Current
Protection
Over-Temperature
Protection
Error
Amplifier
OUT
Voltage
Reference
GND
Functional Description
The AAT3215 is intended for LDO regulator appli-
cations where output current load requirements
range from no load to 150mA.
The advanced circuit design of the AAT3215 pro-
vides excellent input to output isolation, which
allows for good power supply ripple rejection char-
acteristics. To optimize for very low output self
noise performance, a bypass capacitor pin has
been provided to decrease noise generated by the
internal voltage reference. This bypass capacitor
will also enhance PSRR behavior. The two com-
bined characteristics of low noise and high PSRR
make the AAT3215 a truly high performance LDO
regulator especially well suited for circuit applica-
tions which are sensitive to their power source.
3215.2002.03.0.91
The LDO regulator output has been specifically
optimized to function with low cost, low ESR ceram-
ic capacitors. However, the design will allow for
operation over a wide range of capacitor types.
The device enable circuit is provided to shutdown the
LDO regulator for power conservation in portable
products. The enable circuit has an additional output
capacitor discharge circuit to assure sharp applica-
tion circuit turn off upon device shutdown.
This LDO regulator has complete short circuit and
thermal protection. The integral combination of
these two internal protection circuits give the
AAT3215 a comprehensive safety system during
extreme adverse operating conditions. Device
power dissipation is limited to the package type
and thermal dissipation properties. Refer to the
thermal considerations discussion in the section for
details on device operation at maximum output cur-
rent loads.
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부품번호상세설명 및 기능제조사
AAT3215IJS-30-T1

150mA CMOS High Performance LDO

Advanced Analogic Technologies
Advanced Analogic Technologies

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