PRODUCT DATASHEET
AAT2113A
TM
SwitchReg
3MHz, FastTransient 1.5A Step-Down Converter in 2mm x 2mm Package
Electrical Characteristics1
VIN = 3.3V, TA = -40°C to 85°C unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Conditions
Min
Typ Max Units
VIN
VOUT
Input Voltage
Output Voltage Range
2.7
1
3.3
1.2
5.5
1.8
2.4
V
V
V
mV
V
VIN rising
Hysteresis
VIN falling
VUVLO
UVLO Threshold
180
1.6
IOUT = 0A to 1.5A, VIN = 3.3V, VOUT = 1.2V
fixed
VOUT
Output Voltage Tolerance
-3.0
+3.0
%
IQ
ISHDN
ILIM
Quiescent Current
Shutdown Current
Current Limit
No Load
EN = GND
55
90
1.0
μA
μA
A
2
3
RDS(ON)H
RDS(ON)L
ΔVLOADREG Load Regulation
ΔVLINEREG
ΔVIN
High Side Switch On-Resistance
Low Side Switch On-Resistance
140
100
0.5
mΩ
mΩ
%
ILOAD = 0A to 1.5A
VIN = 3.3V to 4.0V
/
Line Regulation
0.3
%/V
V
Feedback Threshold Voltage Accuracy
(Adjustable Version)
VFB
No load, TA = 25°C
0.0591 0.60 0.609
ILXLEAK,R
IFBLEAK
FOSC
TS
LX Reverse Leakage Current
FB Leakage Current
Internal Oscillator Frequency
Start-up Time
VIN unconnected, VLX = 5.5V, EN = GND
VOUT = 1.2V
1.0
0.2
3.4
μA
μA
MHz
μs
2.6
3
60
Enable to Output Regulation
TSD
THYS
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
140
25
°C
°C
EN Logic
VIL
EN Threshold Low
EN Threshold High
EN Leakage Current
0.4
1.0
V
V
μA
VIH
ILEAK
1.4
-1.0
VEN = 5.5V
1. The AAT2113A is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and cor-
relation with statistical process controls.
w w w . a n a l o g i c t e c h . c o m
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2113A.2009.06.1.1
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
