AAT2510
Dual 400mA, 1MHz Step-Down DC-DC Converter
Electrical Characteristics
1
T
A
= -40°C to 85°C, unless otherwise noted. Typical values are T
A
= 25°C, V
IN
= 3.6V.
Symbol
V
IN
V
UVLO
V
OUT
V
OUT
I
Q
I
SHDN
I
LIM
R
DS(ON)H
R
DS(ON)L
I
LXLK
I
LXLK,R
∆V
Linereg
V
FB
I
FB
R
FB
F
OSC
T
SD
T
HYS
EN
Description
Input Voltage
UVLO Threshold
Output Voltage Tolerance
Output Voltage Range
Quiescent Current
Shutdown Current
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
LX Leakage Current
LX Reverse Leakage Current
Line Regulation
FB Threshold Voltage Accuracy
FB Leakage Current
FB Impedance
Oscillator Frequency
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Enable Threshold Low
Enable Threshold High
Input Low Current
Conditions
Min
2.7
Typ
Max
5.5
2.6
Units
V
V
mV
V
%
V
µA
µA
mA
Ω
Ω
µA
µA
%/V
mV
µA
kΩ
MHz
°C
°C
Step-Down Converter Channels
V
IN
Rising
Hysteresis
V
IN
Falling
I
OUT
= 0 to 400mA, V
IN
= 2.7 - 5.5V
Fixed Output Version
Adjustable Output Version
2
No Load, 0.6V Adjustable Version,
Per Channel
EN = SGND = GND
100
1.8
-3.0
0.6
0.6
-
-
600
0.45
0.4
+3.0
4.0
2.5
50
1.0
25
V
IN
= 5.5V, V
LX
= 0 to V
IN
,
EN = SGND = GND
V
IN
= Open, V
LX
= 5.5V,
EN = SGND = GND
V
IN
= 2.7V to 5.5V
0.6V Output, No Load, T
A
= 25°C
0.6V Output
>0.6V Output
T
A
= 25°C
1
1
0.2
615
0.2
1.5
597
250
0.7
600
1.0
140
15
V
EN(L)
V
EN(H
)
I
EN
0.6
V
IN
= V
FB
= 5.5V
1.4
-1.0
1.0
V
V
µA
1. The AAT2510 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.
2. For adjustable version with higher than 2.5V output, please consult your AnalogicTech representative.
4
2510.2005.08.1.5
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
