AAT2510
Dual 400mA, 1MHz Step-Down DC-DC Converter
Electrical Characteristics1
TA = -40°C to 85°C, unless otherwise noted. Typical values are TA = 25°C, VIN = 3.6V.
Symbol
Description
Conditions
Min Typ Max Units
Step-Down Converter Channels
VIN
Input Voltage
2.7
5.5
2.6
V
V
VIN Rising
Hysteresis
VIN Falling
VUVLO
UVLO Threshold
100
25
mV
V
1.8
VOUT
VOUT
IQ
Output Voltage Tolerance
Output Voltage Range
Quiescent Current
IOUT = 0 to 400mA, VIN = 2.7 - 5.5V -3.0
+3.0
4.0
2.5
50
%
Fixed Output Version
Adjustable Output Version2
No Load, 0.6V Adjustable Version,
Per Channel
0.6
0.6
-
V
µA
ISHDN
ILIM
Shutdown Current
EN = SGND = GND
-
1.0
µA
mA
Ω
Ω
µA
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
LX Leakage Current
600
RDS(ON)H
RDS(ON)L
ILXLK
0.45
0.4
VIN = 5.5V, VLX = 0 to VIN,
EN = SGND = GND
VIN = Open, VLX = 5.5V,
EN = SGND = GND
VIN = 2.7V to 5.5V
0.6V Output, No Load, TA = 25°C
0.6V Output
1
1
ILXLK,R
LX Reverse Leakage Current
µA
∆VLinereg
VFB
Line Regulation
0.2
615
0.2
%/V
mV
µA
FB Threshold Voltage Accuracy
FB Leakage Current
FB Impedance
597
600
IFB
RFB
>0.6V Output
250
0.7
kΩ
MHz
FOSC
TSD
Oscillator Frequency
Over-Temperature Shutdown
Threshold
TA = 25°C
1.0
1.5
140
°C
THYS
Over-Temperature Shutdown
Hysteresis
15
°C
EN
VEN(L)
VEN(H
IEN
Enable Threshold Low
Enable Threshold High
Input Low Current
0.6
1.0
V
V
)
1.4
VIN = VFB = 5.5V
-1.0
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 ]
