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AAT3236IJS-25-T1 데이터시트 PDF




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부품번호 AAT3236IJS-25-T1 기능
기능 300mA CMOS High Performance LDO
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AAT3236IJS-25-T1 데이터시트, 핀배열, 회로
AAT3236
300mA CMOS High Performance LDO
General Description
Features
PowerLinear
The AAT3236 is a MicroPower™ Low Dropout
Linear Regulator designed to deliver a continuous
300mA output load current and is capable of han-
dling short duration current peaks up to 500mA.
With a very small footprint SOT23-5 package it is
ideally suited for portable applications where low
noise, high power supply ripple rejection, extended
battery life and small size are critical. The AAT3236
features fast transient response and low output self
noise for powering sensitive RF circuitry. Other fea-
tures include low quiescent current, typically
100µA, and low dropout voltage, typically 300mV at
full output load current. The device has internal out-
put short circuit protection and thermal shutdown to
prevent damage under extreme conditions.
The AAT3236 also features a low-power shutdown
mode for longer battery life. A bypass pin is pro-
vided to improve PSRR performance by connect-
ing an external capacitor from the AAT3236's refer-
ence output to ground.
The AAT3236 is available in a space saving
SOT23-5 or SC70JW-8 package in 7 factory pro-
grammed voltages of 2.5V, 2.7V, 2.8V, 2.85V, 3.0V,
3.3V, or 3.5V.
• 500mA Peak Output Current
• Low Dropout - Typically 300mV at 300mA
• Guaranteed 300mA Output
• High accuracy ±1.5%
• 100µA Quiescent Current
• High Power Supply Ripple Rejection
• 70 dB at 1kHz
• 50 dB at 10kHz
• Very low self noise 45µVrms/rtHz
• Noise reduction bypass capacitor
• Short circuit protection
• Over-Temperature protection
• Shutdown mode for longer battery life
• Low temperature coefficient
• 7 Factory programmed output voltages
• SOT-23 5-pin or SC70JW 8-pin package
Applications
• Cellular Phones
• Notebook Computers
• Portable Communication Devices
• Personal Portable Electronics
Typical Application
VIN
IN AAT3236 OUT
VOUT
ON/OFF
1µF
EN
GND
BYP
10nF
2.2µF
GND
GND
3236.2001.11.0.9
1




AAT3236IJS-25-T1 pdf, 반도체, 판매, 대치품
AAT3236
300mA CMOS High Performance LDO
Typical Characteristics
Dropout Voltage vs. Temperature
400
350
300
250
200
150
100
50
0
-40
-20
IL=300mA
IL=150mA
IL=100mA
IL=50mA
0 20 40 60 80 100 120
Temperature (°C)
Dropout Characteristics
3.1
IOUT=10mA
3.0 IOUT=0mA
IOUT=50mA
2.9 IOUT=100mA
IOUT=150mA
2.8
IOUT=300mA
2.7
2.9
3.0 3.1
Vin
3.2
3.3
Ground Current vs. Temperature
105
100
95
90
85
80
-50
0 50
Temperature (°C)
100
150
Ground Current vs. Input Voltage
120
VOUT=3.0V
100
80 IOUT=0
IOUT=50mA
60
40
20
0
2
3
IOUT=150mA
IOUT=300mA
4
VIN
5
350
300
250
200
150
100
50
0
0
Dropout Voltage vs. IOUT
85 C
25 C
-40 C
50 100 150 200
Output Current (mA)
250
300
4
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
3236.2001.11.0.9

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AAT3236IJS-25-T1 전자부품, 판매, 대치품
Functional Block Diagram
IN
AAT3236
300mA CMOS High Performance LDO
Over-Current
Protection
Over-Temp
Protection
OUT
EN
BYP
Voltage
Reference
GND
Functional Description
The AAT3236 is intended for LDO regulator appli-
cations where output current load requirements
range from no load to 300mA. The AAT3236 is
capable of handling peak output currents up to
500mA. Refer to the Thermal Considerations dis-
cussion in the section for details on device opera-
tion at 500mA peak loads.
The advanced circuit design of the AAT3236 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.
3236.2001.11.0.9
The LDO regulator output has been specifically
optimized to function with low cost, low ESR
ceramic 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 out-
put capacitor discharge circuit to assure sharp appli-
cation 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
AAT3236 a comprehensive safety system during
extreme adverse operating conditions.
7

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부품번호상세설명 및 기능제조사
AAT3236IJS-25-T1

300mA CMOS High Performance LDO

Advanced Analogic Technologies
Advanced Analogic Technologies

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