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參數(shù)資料
| 型號： | AAT1112IWP-0.6-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 1.5A, 1.4MHz Step-Down Converter |
| 中文描述： | 1.5A的，1.4MHz的降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 828K |
| 代理商： | AAT1112IWP-0.6-T1 |
AAT1112
1.5A, 1.4MHz Step-Down Converter
4
1112.2007.01.1.1
Electrical Characteristics
1
V
IN
= 3.6V; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= 25°C.
Symbol
Description
Conditions
Min
Typ
Max
Units
V
IN
V
OUT
Input Voltage
Output Voltage Range
2.4
0.6
5.5
V
IN
2.4
V
V
V
V
IN
Rising
Hysteresis
V
IN
Falling
I
OUT
= 0A to 1.5A,
V
IN
= 2.4V to 5.5V
No Load
V
EN
= GND
V
UVLO
UVLO Threshold
250
mV
V
1.8
V
OUT
Output Voltage Tolerance
-3.0
3.0
%
I
Q
Quiescent Current
Shutdown Current
Current Limit
High Side Switch On-Resistance
Low Side Switch On-Resistance
LX Leakage Current
42
90
1.0
μA
μA
A
Ω
Ω
μA
I
SHDN
I
LIM
R
DS(ON)H
R
DS(ON)L
I
LXLEAK
1.8
0.120
0.085
V
IN
= 5.5V, V
LX
= 0 to V
IN
V
IN
Unconnected, V
LX
= 5.5V,
V
EN
= GND
I
LOAD
= 0A to 1.5A
V
IN
= 2.4V to 5.5V
1.0
I
LXLK, R
LX Reverse Leakage Current
1.0
μA
Δ
V
LOADREG
Δ
V
LINEREG
/
Δ
V
IN
Load Regulation
Line Regulation
Feedback Threshold Voltage
Accuracy (Adjustable Version)
FB Leakage Current
Internal Oscillator Frequency
Synchronous Clock
0.5
0.2
%
%/V
V
FB
No Load, T
A
= 25°C
0.591
0.60
0.609
V
I
FB
V
OUT
= 1.0V
0.2
1.68
3.0
μA
F
OSC
1.12
0.60
1.4
MHz
T
S
Start-Up Time
From Enable to Output
Regulation
150
μs
T
SD
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
140
°C
T
HYS
15
°C
EN
V
IL
V
IH
I
EN
Enable Threshold Low
Enable Threshold High
Enable Leakage Current
0.6
V
V
μA
1.4
-1.0
V
IN
= V
EN
= 5.5V
1.0
MODE/SYNC
V
MODE/SYNC(L)
V
MODE/SYNC(H)
I
MODE/SYNC
Enable Threshold Low
Enable Threshold High
Enable Leakage Current
0.6
V
V
μA
1.4
-1.0
V
IN
= V
EN
= 5.5V
1.0
1. The AAT1112 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.
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