AAT2113A Datasheet, PDF (4/19 Pages) Advanced Analogic Technologies – 3MHz, Fast Transient 1.5A Step-Down Converter in 2mm x 2mm Package

PRODUCT DATASHEET
AAT2113A
SwitchReg^TM 3MHz, Fast Transient 1.5A Step-Down Converter in 2mm x 2mm Package
Electrical Characteristics¹
V_IN = 3.3V, T_A = -40°C to 85°C unless otherwise noted. Typical values are at T_A = 25°C.
Symbol
V_IN
V_OUT
V_UVLO
V_OUT
I_Q
I_SHDN
I_LIM
R_DS(ON)H
R_DS(ON)L
ΔV_LOADREG
ΔV_LINEREG/
ΔV_IN
V_FB
I_LXLEAK,R
I_FBLEAK
F_OSC
T_S
T_SD
T_HYS
EN Logic
V_IL
V_IH
I_LEAK
Description
Input Voltage
Output Voltage Range
UVLO Threshold
Output Voltage Tolerance
Quiescent Current
Shutdown Current
Current Limit
High Side Switch On-Resistance
Low Side Switch On-Resistance
Load Regulation
Line Regulation
Feedback Threshold Voltage Accuracy
(Adjustable Version)
LX Reverse Leakage Current
FB Leakage Current
Internal Oscillator Frequency
Start-up Time
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
EN Threshold Low
EN Threshold High
EN Leakage Current
Conditions
V_IN rising
Hysteresis
V_IN falling
I_OUT = 0A to 1.5A, V_IN = 3.3V, V_OUT = 1.2V
fixed
No Load
EN = GND
I_LOAD = 0A to 1.5A
V_IN = 3.3V to 4.0V
No load, T_A = 25°C
V_IN unconnected, V_LX = 5.5V, EN = GND
V_OUT = 1.2V
Enable to Output Regulation
V_EN = 5.5V
Min
2.7
1
1.6
-3.0
2
Typ
3.3
1.2
180
Max
5.5
1.8
2.4
Units
V
V
V
mV
V
+3.0 %
55 90
μA
1.0
μA
3
A
140
mΩ
100
mΩ
0.5
%
0.3
%/V
0.0591 0.60 0.609
1.0
0.2
2.6
3
3.4
60
140
25
V
μA
μA
MHz
μs
°C
°C
1.4
-1.0
0.4
V
V
1.0
μA
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.
4
www.analogictech.com
2113A.2009.06.1.1