AAT1123 Datasheet, PDF (4/18 Pages) Advanced Analogic Technologies – 1MHz Step-Down Converter

DATA SHEET
AAT1123
1MHz Step-Down Converter
Electrical Characteristics¹
T_A = -40°C to +85°C, unless otherwise noted. Typical values are T_A = 25°C, V_IN = 3.6V.
Symbol Description
Step-Down Converter
V_IN
Input Voltage
V_UVLO
UVLO Threshold
V_OUT
V_OUT
I_Q
I_SHDN
I_{OUT_X}
R_DS(ON)H
R_DS(ON)L
I_LXLEAK
V_Linereg
V_OUT
I_OUT
R_OUT
T_S
F_OSC
T_SD
T_HYS
EN
V_EN(L)
V_EN(H)
I_EN
Output Voltage Tolerance
Output Voltage Range
Quiescent Current
Shutdown Current
Maximum Load Current
High Side Switch On Resistance
Low Side Switch On Resistance
LX Leakage Current
Line Regulation
Out Threshold Voltage Accuracy
Out Leakage Current
Out Impedance
Start-Up Time
Oscillator Frequency
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Enable Threshold Low
Enable Threshold High
Input Low Current
Conditions
Min
V_IN Rising
Hysteresis
V_IN Falling
I_OUT = 0 to 600mA, V_IN = 2.7V to 5.5V
No Load, 0.6V Adjustable Version
EN = AGND = PGND
2.7
1.8
-3.5
0.6
600
V_IN = 5.5V, V_LX = 0 to V_IN, EN = GND
V_IN = 2.7V to 5.5V
0.6V Output, No Load, T_A = 25°C
0.6V Output
591
>0.6V Output
250
From Enable to Output Regulation
T_A = 25°C
0.7
V_IN = V_FB = 5.5V
1.4
-1.0
Typ
100
25
0.45
0.40
600
100
1.0
140
15
Max Units
5.5
2.6
+3.5
V_IN
50
1.0
1
0.5
609
0.2
1.5
0.6
1.0
V
V
mV
V
%
V
μA
μA
mA
Ω
Ω
μA
%/V
mV
μA
kΩ
μs
MHz
°C
°C
V
V
μA
1. The AAT1123 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
4
201975B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013