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AAT1202 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AAT1202
기능 MULTI-INPUT LOW-DROPOUT REGULATOR
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AAT1202 데이터시트, 핀배열, 회로
Advanced Analog Technology, Inc.
AAT1202
250-mA MULTI-INPUT LOW-DROPOUT REGULATOR
WITH DUAL -OUTPUT POWER MANAGEMENT
Features
Description
z Complete Power Management
The AAT1202 is a multi-input low-dropout
z Automatic Input Voltage Selection
regulator that provides dual constant output supply
3.3V & 1.8V at the output capable of driving a
z Input Voltage Source Detector With
250-mA load.
Hysteresis
The output (OUT18) can be disable by connect
z 250-mA Load Current Capability With
VCC50 or VSB50 or AUX33 Input Source
z Integrated Low rDS (on) Switch
EN18 pin to GND.
The AAT1202 provides dual regulated power
output for systems that have multiple input
sources and require dual constant voltage source
z Dual Regulated Output 3.3V (fixed) & 1.8V
(fixed)
z Output Short Circuit Protection
with a low-dropout voltage. This is a intelligent
power source selection device with a low-dropout
regulator for either VCC50 or VSB50 inputs, and
a low-resistance bypass switch for the AUX33
input.www.DataSheet4U.com
Pin Configuration
Transitions may occur from one input supply to
another without generating a glitch outside of the
specification range on the 3.3-V & 1.8-V output.
The device has an incorporated reverse-blocking
scheme to prevent excess leakage from the input
terminals in the event that the output voltage is
greater than the input voltage.
The input voltage is prioritized in the following
order: VCC50, VSB50, AUX33.
––
Advanced Analog Technology, Inc.
V 0.1




AAT1202 pdf, 반도체, 판매, 대치품
Advanced Analog Technology, Inc.
AAT1202
Electrical Characteristics over recommended operating free-air temperature, TA = 0 to
70 ,CL = 4.7µF (unless otherwise noted)
Parameter
Test Condition
Min Typ Max Unit
VCC50
VSB50
OUT33
OUT18
5-V inputs
3.3-V output
1.8-V output
Iout33+Iout18 = 250mA
Iout33=0, Iout18 = 200mA
4.5 5 5.5 V
3.135 3.3 3.465 V
1.71 1.8 1.89 V
VO VI Line regulation voltage
VO IO Load regulation voltage
VSB50 or VCC50 = 4.5V to 5.5V
20 mA IL 250 mA
2 mV
40 mV
I50
Quiescent supply current
From VCC50 VSB50 terminals, IL=
0 to 250mA
1.0 3.0 mA
IAUX
From AUX33 terminal, IL = 0A
1.0 3.0 mA
IL33
IL18
ILIMIT
Out33 load current
Out18 load current
Output current limit
Out33 or Out18 output shorted to
0V
0.25
0.2
1.5 A
TTSD
Thermal shutdown NOTE 2
150 180
Thys Thermal hysteresis NOTE 2
15
CL Load capacitance
Minimal ESR to insure stability of
regulated output
4.7
µF
IIkg REV
Reverse leakage output current Tested for input that is grounded.
AUX33, VSB50 or VCC50 = GND,
50 µA
Out33 = 3.3v
VLO Threshold voltage, low VSB50 or VCC50
3.85 4.05 4.25 V
VHI
Threshold voltage, high
VSB50 or VCC50
4.1 4.3 4.5 V
R SWITCH Auxiliary switch resistance
VSB50 = VCC50 = 0V,
AUX33 = 3.3V, IL = 150mA
0.4
RθJA Thermal impedance,
Without copper for heat spreading
Junction-to-ambient NOTE3 With copper for heat spreading
100
70
/W
NOTE 2 Design targets only. Not tested in production.
NOTE 3 Please refer to "Thermal Information"
––
Advanced Analog Technology, Inc.
V 0.1

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AAT1202 전자부품, 판매, 대치품
Advanced Analog Technology, Inc.
TYPICAL CHARACTERISTICS
AAT1202
Figure 3. 3.3V AUX33 Cold Start
Figure 4. 1.8V AUX33 Cold Start
––
Advanced Analog Technology, Inc.
V 0.1

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전력 반도체 판매 ( IGBT, TR 모듈, SCR, 다이오드 모듈 )

휴대전화 : 010-3582-2743


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877, [ 홈페이지 ]



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