Datasheet.kr   

AAT1146 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AAT1146
기능 Step-Down Converter
제조업체 AAT
로고 AAT 로고 



전체 20 페이지

		

No Preview Available !

AAT1146 데이터시트, 핀배열, 회로
AAT1146
Fast Transient 400mA Step-Down Converter
General Description
Features
SwitchReg
The AAT1146 SwitchReg is a member of
AnalogicTech's Total Power Management IC™
(TPMIC™) product family. It is a 1.4MHz step-
down converter with an input voltage range of 2.7V
to 5.5V and output voltage as low as 0.6V. It is
optimized to react quickly to a load variation.
The AAT1146 is available in fixed voltage versions
with internal feedback and a programmable ver-
sion with external feedback resistors. It can deliver
400mA of load current while maintaining a low
27μA no load quiescent current. The 1.4MHz
switching frequency minimizes the size of external
components while keeping switching losses low.
The AAT1146 is designed to maintain high efficien-
cy throughout the operating range, which is critical
for portable applications.
• VIN Range: 2.7V to 5.5V
• VOUT Fixed or Adjustable from 0.6V to VIN
• 27μA No Load Quiescent Current
• Up to 98% Efficiency
• 400mA Max Output Current
• 1.4MHz Switching Frequency
• 120μs Soft Start
• Fast Load Transient
• Over-Temperature Protection
• Current Limit Protection
• 100% Duty Cycle Low-Dropout Operation
• <1μA Shutdown Current
• SC70JW-8 Package
• Temperature Range: -40°C to +85°C
The AAT1146 is available in a Pb-free, space-saving
Applications
2.0x2.1mm SC70JW-8 package and is rated over
the -40°C to +85°C temperature range.
• Cellular Phones
• Digital Cameras
www.DataSheet4U.com Handheld Instruments
• Microprocessor / DSP Core / IO Power
• PDAs and Handheld Computers
• USB Devices
Typical Application (Fixed Output Voltage)
VIN
C2
4.7μF
U1
AAT1146
3 VIN
LX 4
1 EN
OUT 2
5 AGND PGND 7
8 PGND PGND 6
L1
4.7μH
VO
C1
4.7μF
1146.2006.04.1.3
1




AAT1146 pdf, 반도체, 판매, 대치품
AAT1146
Fast Transient 400mA Step-Down Converter
Electrical Characteristics1
TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C, VIN = 3.6V.
Symbol Description
Step-Down Converter
VIN Input Voltage
VUVLO
UVLO Threshold
VOUT
VOUT
IQ
ISHDN
ILIM
RDS(ON)H
RDS(ON)L
ILXLEAK
ΔVLinereg
VOUT
IOUT
ROUT
TS
FOSC
TSD
THYS
EN
VEN(L)
VEN(H)
IEN
Output Voltage Tolerance
Output Voltage Range
Quiescent Current
Shutdown Current
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
LX Leakage Current
Line Regulation
Out Threshold Voltage Accuracy
Out Leakage Current
Out Impedance
Start-Up Time
Oscillator Frequency
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Enable Threshold Low
Enable Threshold High
Input Low Current
Conditions
VIN Rising
Hysteresis
VIN Falling
IOUT = 0 to 400mA,
VIN = 2.7V to 5.5V
No Load, 0.6V Adjustable
Version
EN = AGND = PGND
VIN = 5.5V, VLX = 0 to VIN,
EN = GND
VIN = 2.7V to 5.5V
0.6V Output, No Load
TA = 25°C
0.6V Output
>0.6V Output
From Enable to Output
Regulation
TA = 25°C
VIN = VOUT = 5.5V
Min
2.7
1.8
-3.0
0.6
600
591
250
1.0
1.4
-1.0
Typ
100
27
0.45
0.40
0.1
600
150
1.4
140
15
Max Units
5.5
2.7
+3.0
VIN
70
1.0
1
609
0.2
2.0
V
V
mV
V
%
V
μA
μA
mA
Ω
Ω
μA
%/V
mV
μA
kΩ
μs
MHz
°C
°C
0.6 V
V
1.0 μA
1. The AAT1146 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
by design, characterization, and correlation with statistical process controls.
4 1146.2006.04.1.3

4페이지










AAT1146 전자부품, 판매, 대치품
AAT1146
Fast Transient 400mA Step-Down Converter
Typical Characteristics
P-Channel RDS(ON) vs. Input Voltage
750
700
650 120°C 100°C
600
550
500 85°C
450
25°C
400
350
300
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage (V)
N-Channel RDS(ON) vs. Input Voltage
750
700
650 120°C 100°C
600
550
500
450 85°C
400
25°C
350
300
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage (V)
Load Transient Response
(1mA to 300mA; VIN = 3.6V; VOUT = 1.8V;
C1 = 10μF; CFF = 100pF)
2.0
1.9 VO
1.8
1.7
IO
300mA
1mA
IL
0
Time (50μs/div)
Load Transient Response
(300mA to 400mA; VIN = 3.6V;
VOUT = 1.8V; C1 = 4.7μF)
1.90
1.85 VO
1.80
1.75 IO
400mA
300mA
IL
Time (50μs/div)
0.4
0.3
0.2
0.1
Load Transient Response
(300mA to 400mA; VIN = 3.6V;
VOUT = 1.8V; C1 = 10μF)
1.90
1.85 VO
1.80
1.75 IO
400mA
300mA
IL
Time (50μs/div)
0.4
0.3
0.2
0.1
Load Transient Response
(300mA to 400mA; VIN = 3.6V; VOUT = 1.8V;
C1 = 10μF; C4 = 100pF)
1.850
1.825 VO
1.800
1.775 IO
400mA
300mA
IL
Time (50μs/div)
0.4
0.3
0.2
0.1
1146.2006.04.1.3
7

7페이지



구       성총 20 페이지
다운로드[ AAT1146.PDF 데이터시트 ]
구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

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

휴대전화 : 010-3582-2743


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877, [ 홈페이지 ]



링크공유

링크 :

관련 데이터시트

부품번호상세설명 및 기능제조사
AAT1140

Fast Transient 600mA Step-Down Converter

Advanced Analog Technology
Advanced Analog Technology
AAT1141

Fast Transient 600mA Step-Down Converter

Advanced Analog Technology
Advanced Analog Technology

DataSheet.kr    |   2019   |  연락처   |  링크모음   |   검색  |   사이트맵