AAT2550_08 ANALOGICTECH [Advanced Analogic Technologies], AAT2550_08 Datasheet - Page 4

• Manufacturer Part Number: AAT2550_08
• Description: Total Power Solution for Portable Applications
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Electrical Characteristics
V
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 correla-
4
4
SystemPower
SystemPower
Step-Down Converters A and B
IN
Symbol
tion with statistical process controls.
ΔV
R
R
I
I
V
V
= 3.6V; T
V
LX_LEAK
FB_LEAK
I
DS(ON)H
V
V
DS(ON)L
F
T
I
I
R
V
T
V
SHDN
EN(H)
I
UVLO
LineReg
EN(L)
OUT
I
LIM
OSC
HYS
OUT
OUT
EN
SD
IN
Q
FB
FB
Description
Input Voltage
Under-Voltage Lockout Threshold
Output Voltage Tolerance
Output Voltage Range
Output Current
Quiescent Current
Shutdown Current
P-Channel Current Limit
LX Leakage Current
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
Input Low Current
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
TM
TM
1
w w w . a n a l o g i c t e c h . c o m
w w w . a n a l o g i c t e c h . c o m
Conditions
V
Hysteresis
V
I
Per Converter
Each Converter
V
Each Converter
V
V
V
No Load, T
V
V
OUT
IN
IN
ENA
IN
FB
OUT
IN
IN
Rising
Falling
= 5.5V, V
= 2.7V to 5.5V
= V
= 0.6V
= 0 to 600mA, V
= V
> 0.6V
Total Power Solution for Portable Applications
Total Power Solution for Portable Applications
FB
ENB
= 5.5V
A
= GND
= 25°C
LX
= 0 to V
IN
= 2.7V to 5.5V
IN
, V
ENA
= V
ENB
A
= GND
= 25°C.
PRODUCT DATASHEET
PRODUCT DATASHEET
0.591
Min
-3.0
-1.0
250
2.7
1.8
0.6
0.8
1.4
AAT2550178
AAT2550178
Typ
0.45
0.40
100
140
1.0
0.6
0.1
1.4
27
15
2550.2008.02.1.3
2550.2008.02.1.3
0.609
Max
600
5.5
2.7
3.0
1.0
1.0
0.2
0.6
1.0
V
70
IN
Units
%/V
MHz
mV
mA
μA
μA
μA
μA
kΩ
μA
°C
°C
%
V
V
V
V
A
V
Ω
Ω
V
V