AAT1126 Datasheet, PDF (4/20 Pages) Advanced Analogic Technologies – 600mA, 1MHz Step-Down Converter

AAT1126
600mA, 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
Conditions
Min
Step-Down Converter
V_IN
V_UVLO
V_OUT
V_OUT
I_Q
Input Voltage
UVLO Threshold
Output Voltage Tolerance
Output Voltage Range
Quiescent Current
2.7
V_IN Rising
Hysteresis
V_IN Falling
1.8
I_OUT = 0 to 600mA,
V_IN = 2.7V to 5.5V
-3.5
0.6
No Load, 0.6V Adjustable
Version
I_SHDN
I_{OUT_X}
R_DS(ON)H
R_DS(ON)L
I_LXLEAK
Shutdown Current
Maximum Load Current
High Side Switch On Resistance
Low Side Switch On Resistance
LX Leakage Current
EN = AGND = PGND
600
V_IN = 5.5V, V_LX = 0 to V_IN,
EN = GND
ΔV_Linereg
V_OUT
I_OUT
R_OUT
T_S
Line Regulation
Out Threshold Voltage Accuracy
Out Leakage Current
Out Impedance
Start-Up Time
V_IN = 2.7V to 5.5V
0.6V Output, No Load
T_A = 25°C
591
0.6V Output
>0.6V Output
250
From Enable to Output
Regulation
F_OSC
Oscillator Frequency
T_A = 25°C
0.7
T_SD
Over-Temperature Shutdown Threshold
T_HYS
Over-Temperature Shutdown Hysteresis
EN
V_EN(L)
V_EN(H)
I_EN
Enable Threshold Low
Enable Threshold High
Input Low Current
1.4
V_IN = V_FB = 5.5V
-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
V
V
mV
V
%
V
µA
µA
mA
Ω
Ω
µA
%/V
mV
µA
kΩ
µs
MHz
°C
°C
0.6
V
V
1.0 µA
1. The AAT1126 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.
4
1126.2006.05.1.1