參數資料
型號: AAT2550ISK-CAA-T1
廠商: Advanced Analog Technology,lnc.
英文描述: Total Power Solution for Portable Applications
中文描述: 總功率便攜式應用解決方案
文件頁數: 4/35頁
文件大小: 914K
代理商: AAT2550ISK-CAA-T1
Electrical Characteristics
1
V
IN
= 3.6V; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol
Description
Conditions
Min
Typ
Max
Units
Step-Down Converters A and B
V
IN
Input Voltage
2.7
5.5
2.7
V
V
V
IN
Rising
Hysteresis
V
IN
Falling
I
OUT
= 0 to 600mA,
V
IN
= 2.7V to 5.5V
V
UVLO
Under-Voltage Lockout Threshold
100
mV
V
1.8
V
OUT
Output Voltage Tolerance
-3.0
3.0
%
V
OUT
I
OUT
I
Q
I
SHDN
I
LIM
Output Voltage Range
Output Current
Quiescent Current
Shutdown Current
P-Channel Current Limit
0.6
V
IN
600
70
1.0
V
Per Converter
Each Converter
V
ENA
= V
ENB
= GND
Each Converter
V
IN
= 5.5V, V
LX
= 0 to V
IN
,
V
ENA
= V
ENB
= GND
V
FB
= 0.6V
V
OUT
> 0.6V
mA
μA
μA
A
27
0.8
1.0
I
LX_LEAK
LX Leakage Current
1.0
μA
I
FB_LEAK
R
FB
Feedback Leakage
FB Impedance
Feedback Threshold Voltage Accuracy
(0.6V Adjustable Version)
High-Side Switch On Resistance
Low-Side Switch On Resistance
Line Regulation
Switching Frequency
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Enable Threshold Low
Enable Threshold High
0.2
μA
k
Ω
250
V
FB
No Load, T
A
= 25°C
0.591
0.6
0.609
V
R
DS(ON)H
R
DS(ON)L
Δ
V
LineReg
F
OSC
T
SD
T
HYS
V
EN(L)
V
EN(H)
0.45
0.40
0.1
1.4
140
15
Ω
Ω
V
IN
= 2.7V to 5.5V
%/V
MHz
°C
°C
V
V
0.6
1.4
AAT2550
Total Power Solution for Portable Applications
4
2550.2006.07.1.0
1. The AAT2550 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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