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부품번호 | AAT3218IJS-2.85-T1 기능 |
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기능 | 150mA MicroPower High Performance LDO | ||
제조업체 | ETC | ||
로고 | |||
전체 18 페이지수
AAT3218
150mA MicroPower™ High Performance LDO
General Description
The AAT3218 MicroPower™ Low Dropout Linear
Regulator is ideally suited for portable applications
where very fast transient response, extended battery
life and small size are critical. The AAT3218 has
been specifically designed for high speed turn on and
turn off performance, fast transient response, good
power supply ripple rejection (PSRR) and is reason-
ably low noise, making it ideal for powering sensitive
circuits with fast switching requirements.
Other features include low quiescent current, typical-
ly 70µA, and low dropout voltage which is typically
less than 200mV at the maximum output current level
of 150mA. The device is output short circuit protect-
ed and has a thermal shutdown circuit for additional
protection under extreme operating conditions.
The AAT3218 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 a small
external capacitor from the AAT3218's reference
output to ground.
The AAT3218 is available in a space saving 5-pin
SOT23 or 8-pin SC70JW package in 16 factory
programmed voltages of 1.2V, 1.4V, 1.5V, 1.8V,
1.9V, 2.0V, 2.3V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V,
2.9V, 3.0V, 3.3V or 3.5V.
Features
PowerLinear™
• Low Dropout - 200mV at 150mA
• Guaranteed 150mA Output
• High accuracy ±1.5%
• 70µA Quiescent Current
• Fast line and load transient response
• High speed device turn-on and shutdown
• High Power Supply Ripple Rejection
• Low self noise
• Short circuit protection
• Over-Temperature protection
• Uses Low ESR ceramic capacitors
• Output noise reduction bypass capacitor
• Shutdown mode for longer battery life
• Low temperature coefficient
• 16 Factory programmed output voltages
• SOT23 5-pin or SC70JW 8-pin package
Applications
• Cellular Phones
• Notebook Computers
• Portable Communication Devices
• Personal Portable Electronics
• Digital Cameras
Typical Application
VIN
IN OUT
AAT3218
VOUT
ON/OFF
EN
BYP
GND
1µF
10nF
2.2µF
GND
GND
3218.2004.02.1.0
1
AAT3218
150mA MicroPower™ High Performance LDO
Electrical Characteristics (VIN=VOUT(NOM)+1V for VOUT options greater than 1.5V. VIN= 2.5 for
VOUT≤1.5V. IOUT=1mA, COUT=2.2µF, CIN=1µF, TA= -40 to 85°C unless otherwise noted. Typical values are
at TA=25°C)
Symbol Description
Conditions
Min Typ Max Units
VOUT
IOUT
VDO
ISC
IQ
ISD
∆VOUT/
VOUT*∆VIN
∆VOUT(line)
Output Voltage Tolerance
Output Current
Dropout Voltage 1, 2
Short Circuit Current
Ground Current
Shutdown Current
Line Regulation
Dynamic Line Regulation
∆VOUT(load)
tENDLY
VEN(L)
VEN(H)
IEN
Dynamic Load Regulation
Enable Delay Time
Enable Threshold Low
Enable Threshold High
Leakage Current on Enable Pin
IOUT = 1mA to 150mA
TA=25°C
-1.5
TA=-40 to 85°C -2.5
VOUT > 1.2V
150
IOUT = 150mA
200
VOUT < 0.4V
600
VIN = 5V, No load, EN = VIN
70
VIN = 5V, EN = 0V
1.5
2.5
300
125
1
VIN = VOUT + 1 to 5.0V
0.09
VIN=VOUT+1V to VOUT+2V, IOUT=150mA,
TR/TF =2µs
IOUT = 1mA to 150mA, TR<5µs
BYP = open
VEN = 5V
1 kHz
2.5
30
15
1.5
67
0.6
1
%
%
mA
mV
mA
µA
µA
%/V
mV
mV
µs
V
V
µA
PSRR
Power Supply Rejection Ratio
IOUT=10mA, CBYP=10nF 10kHz
1MHz
47 dB
45
TSD
THYS
eN
TC
Over Temp Shutdown Threshold
Over Temp Shutdown Hysteresis
Output Noise
Output Voltage Temp. Coeff.
Noise Power BW = 300Hz-50kHz
145 °C
12 °C
50 µVrms/rtHz
22 ppm/°C
Note 1: VDO is defined as VIN - VOUT when VOUT is 98% of nominal.
Note 2: For VOUT < 2.3V, VDO = 2.5V - VOUT.
4 3218.2004.02.1.0
4페이지 AAT3218
150mA MicroPower™ High Performance LDO
Typical Characteristics
(Unless otherwise noted, VIN = 5V, TA = 25°C)
AAT3218 Self Noise
COUT = 10µF (ceramic)
10
1
0.1
0.01
Band Power:
300Hz to 50kHz = 44.6µVrms/rtHz
100Hz to 100kHz = 56.3µVrms/rtHz
0.001
0.01
0.1
1
10
100
Frequency (kHz)
1000
10000
VIH and VIL vs. VIN
1.250
1.225
1.200
1.175
1.150
VIH
1.125
1.100
1.075
VIL
1.050
2.5
3.0
3.5 4.0
4.5 5.0
5.5
VIN (V)
3218.2004.02.1.0
7
7페이지 | |||
구 성 | 총 18 페이지수 | ||
다운로드 | [ AAT3218IJS-2.85-T1.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
AAT3218IJS-2.85-T1 | 150mA MicroPower High Performance LDO | ETC |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |