Datasheet.kr   

AAT1126 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AAT1126
기능 Step-Down Converter
제조업체 AAT
로고 AAT 로고 



전체 20 페이지

		

No Preview Available !

AAT1126 데이터시트, 핀배열, 회로
AAT1126
600mA, 1MHz Step-Down Converter
General Description
Features
SwitchReg
The AAT1126 SwitchReg™ is a member of
AnalogicTech's Total Power Management IC™
(TPMIC™) product family. It is a 1MHz step-down
• VIN Range: 2.7V to 5.5V
• VOUT Adjustable Down to 0.6V
— Fixed or Adjustable Version
converter with an input voltage range of 2.7V to
• Fast Turn-On Time (100µs Typical)
5.5V and output as low as 0.6V. Its low supply cur-
• 25µA No Load Quiescent Current
rent, small size, and high switching frequency
• Up to 97% Efficiency
make the AAT1126 the ideal choice for portable
• Output Current Up to 600mA
applications.
• 1MHz Switching Frequency
The AAT1126 is available in either a fixed version
with internal feedback or a programmable version
with external feedback resistors. It can deliver up
to 600mA of load current while maintaining a low
25µA no load quiescent current. The 1MHz switch-
ing frequency minimizes the size of external com-
ponents while keeping switching losses low. The
• Soft Start
• Over-Temperature Protection
• Current Limit Protection
• 100% Duty Cycle Low-Dropout Operation
• 0.1µA Shutdown Current
• SOT23-5 Package
• Temperature Range: -40°C to +85°C
AAT1126 feedback and control delivers excellent
load regulation and transient response with a small
output inductor and capacitor.
The AAT1126 is designed to maintain high efficien-
Applications
cy throughout the
fast turn-on time.
operating
range
and
provides
www.DataSheet4U.com
Cellular Phones
Digital Cameras
The AAT1126 is available in a Pb-free, space-sav-
• Handheld Instruments
ing SOT23-5 package and is rated over the -40°C
• Microprocessor / DSP Core / IO Power
to +85°C temperature range.
• PDAs and Handheld Computers
• USB Devices
Typical Application (Fixed Output Voltage)
VIN
C2
4.7µF
U1
AAT1126
5 VIN
LX 3
2 EN
1 GND
OUT 4
L1
4.7µH
VO
C1
10µF
1126.2006.05.1.1
1




AAT1126 pdf, 반도체, 판매, 대치품
AAT1126
600mA, 1MHz 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
IOUT_X
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
Maximum Load Current
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 600mA,
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 = VFB = 5.5V
Min
2.7
1.8
-3.5
0.6
600
591
250
0.7
1.4
-1.0
Typ
100
25
0.45
0.40
600
100
1.0
140
15
Max Units
5.5
2.6
+3.5
VIN
50
1.0
1
0.5
609
0.2
1.5
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 AAT1126 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 1126.2006.05.1.1

4페이지










AAT1126 전자부품, 판매, 대치품
Typical Characteristics
Load Transient Response
(30mA - 300mA; VIN = 3.6V; VOUT = 1.5V; C1 = 22μF)
1.65
1.60
1.5
1.55
1.3
1.50
1.45
300mA
1.1
1.40
1.35
30mA
0.9
1.30
0.7
1.25
1.20
0.5
1.15
0.3
1.10
1.05
0.1
1.00
-0.1
Time (25μs/div)
AAT1126
600mA, 1MHz Step-Down Converter
Load Transient Response
(30mA - 300mA; VIN = 3.6V; VOUT = 2.5V; C1 = 22μF)
2.65
1.5
2.55
1.3
2.45
300mA
1.1
30mA
0.9
2.35
0.7
2.25
2.15
0.5
0.3
0.1
2.05
-0.1
Time (25μs/div)
Line Transient
(VOUT = 2.5V @ 500mA)
2.60
2.55
2.50
2.45
2.40
2.35
2.30
2.25
2.20
2.15
Time (25μs/div)
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
Output Ripple
(VIN = 3.6V; VOUT = 1.8V; 400mA)
40
20
0
-20
-40
-60
-80
-100
-120
Time (250ns/div)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
2
1.5
1
0.5
0
-0.5
-1
2.5
Line Regulation
(VOUT = 1.5V)
IOUT = 600mA
IOUT = 100mA
IOUT = 10mA
3 3.5 4 4.5 5 5.5 6
Input Voltage (V)
Soft Start
(VIN = 3.6V; VOUT = 1.5V; L = 4.7μH)
4.0 3.5
3.0 3.0
2.0 2.5
1.0 2.0
0.0 1.5
-1.0 1.0
-2.0 0.5
-3.0 0.0
-4.0 -0.5
Time (50μs/div)
1126.2006.05.1.1
7

7페이지



구       성총 20 페이지
다운로드[ AAT1126.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
AAT1120

Step-Down Converter

AAT
AAT
AAT1121

Step-Down Converter

AAT
AAT

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