AAT2146W Datasheet, PDF (4/18 Pages) Skyworks Solutions Inc. – Low-Noise, Fast Transient 600mA Step-Down Converter

DATA SHEET
AAT2146W
Low-Noise, Fast Transient 600mA 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
V_OUT
I_Q
I_SHDN
I_LIM
R_DS(ON)H
R_DS(ON)L
V_Linereg
I_OUT
T_S
F_OSC
T_SD
T_HYS
EN
V_EN(L)
V_EN(H)
I_EN
Out Voltage Accuracy
Output Voltage Tolerance
Output Voltage Range
Quiescent Current
Shutdown Current
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
Line Regulation
Out Leakage Current
Start-Up Time
Oscillator Frequency
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Enable Threshold Low
Enable Threshold High
Input Low Current
Conditions
Min Typ Max Units
V_IN Rising
Hysteresis
V_IN Falling
No Load; T_A = 25°C
I_OUT = 0mA to 600mA, V_IN = 2.7V to 5.5V
No Load, Not Switching
EN = AGND = PGND
V_IN = 2.7V to 5.5V; I_OUT = 600mA
0.6V Output
From Enable to Output Regulation
T_A = 25°C
2.7
1.8
-3.0
0.6
800
100
600
150
0.35
0.30
0.1
150
2.0
140
15
5.5
2.7
+3.0
V_IN
300
1.0
0.2
V
V
mV
V
mV
%
V
μA
μA
mA


%/V
μA
μs
MHz
°C
°C
V_IN = V_OUT = 5.5V
1.4
-1.0
0.6
V
V
1.0
μA
1. The AAT2146W 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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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202008A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 28, 2012