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參數(shù)資料
| 型號： | AAT1142IWP-1.8-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 800mA Voltage-Scaling Step-Down Converter |
| 中文描述： | 800mA的電壓縮放降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 5/22頁 |
| 文件大?。?/td> | 982K |
| 代理商： | AAT1142IWP-1.8-T1 |
Electrical Characteristics
1
L = 2.2μH, C
IN
= C
OUT
= 10μF, V
IN
= 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are
at T
A
= 25°C.
Characteristics of SDA and SCL Bus Lines
Standard Mode
Min
Fast Mode
Min
Parameter
Symbol
Max
Max
Units
SCL Clock Frequency
Hold Time for START Condition; After
this Period, the First Clock Pulse is
Generated
LOW Period of the SCL Clock
HIGH Period of the SCL Clock
Set-up Time for a Repeated START
Condition
Data in Hold Time
Data in Set-Up Time
Set-Up Time for STOP Condition
Bus Free Time Between a STOP and
START Condition
Input Low Level
Input High Level
f
SCL
t
HD;STA
100
400
kHz
μs
4.0
0.6
t
LOW
t
HIGH
t
SU;STA
4.7
4.0
4.7
1.3
0.6
0.6
μs
μs
μs
t
HD;DAT
t
SU;DAT
t
SU;STO
t
BUF
0
3.45
0
0.9
μs
ns
μs
μs
350
4.0
4.7
350
0.6
1.3
V
IL
V
IH
V
IN
· 0.3
V
IN
· 0.3
V
V
V
IN
· 0.7
V
IN
· 0.7
Symbol
Description
Conditions
Min
Typ
Max
Units
EN/SET and MODE/SYNC
V
EN/SET(L)
V
EN/SET(H)
T
EN/SET(L)
T
EN/SET(H)
T
OFF
T
LATCH
I
EN/SET
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
EN/SET High Time
EN/SET Timeout
EN/SET Latch Timeout
Input Low Current
0.6
V
V
μs
μs
μs
μs
μA
1.4
0.3
V
EN/SET
< 0.6V
V
EN/SET
> 1.4V
V
EN/SET
< 0.6V
V
EN/SET
> 1.4V
V
IN
= V
FB
= 5.5V
75
75
500
500
1.0
V
IN
×
0.4
50
-1.0
V
MODE/SYNC(L)
Enable Threshold Low
V
V
MODE/SYNC(H)
Enable Threshold High
V
IN
×
0.7
-1.0
V
I
MODE/SYNC
Input Low Current
1.0
μA
AAT1142
800mA Voltage-Scaling Step-Down Converter
1142.2006.07.1.0
5
1. The AAT1142 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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