600mA Step-Down Converter
Electrical Characteristics
Step-Down Converter
V
IN
Input Voltage Range
I
Q
AAT1106
V
IN
= V
EN
= 3.6V, T
A
= 25°C, unless otherwise noted.
Symbol Description
Conditions
Active Mode, V
FB
= 0.5V
Shutdown Mode, V
FB
= 0V, V
IN
= 4.2V
T
A
= 25°C
T
A
= 0°C
≤
T
A
≤
+85°C
T
A
= -40°C
≤
T
A
≤
+85°C
V
FB
= 0.65V
AAT1106ICB-1.5, -40°C
≤
T
A
≤
85°C
AAT1106ICB-1.8, -40°C
≤
T
A
≤
85°C
V
IN
= 2.5V to 5.5V, I
OUT
= 10mA
I
OUT
= 10mA to 600mA
Min
2.5
0.5880
0.5865
0.5850
-30
1.455
1.746
Typ
270
0.08
0.6000
0.6000
0.6000
1.500
1.800
0.11
0.0015
1.5
Max
5.5
400
1.0
0.6120
0.6135
0.6150
30
1.545
1.854
0.40
Units
µA
V
nA
V
%/V
%/mA
mA
MHz
µs
Ω
mV
V
V
µA
°C
°C
A
V
Input DC Supply Current
Regulated Feedback Voltage
FB Input Bias Current
Regulated Output Voltage
Output Voltage Line
Regulation
Output Voltage Load
Regulation
Maximum Output Current
Oscillator Frequency
Startup Time
P-Channel MOSFET
N-Channel MOSFET
V
FB
V
OUT
I
FB
∆V
OUT
/
V
OUT
/∆V
IN
∆V
OUT
/
V
OUT
/∆I
OUT
I
LIM
F
OSC
T
S
R
DS(ON)
Peak Inductor Current
V
EN(L)
V
EN(H)
I
EN
T
SD
T
HYS
Output Over-Voltage Lockout
Enable Threshold Low
Enable Threshold High
Input Low Current
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
V
IN
= 3.0V
V
FB
= 0.6V or V
OUT
= 100%
From Enable to Output
Regulation
I
LX
= 300mA
I
LX
= 300mA
V
IN
= 3V, V
FB
= 0.5V or V
OUT
= 90%;
Duty Cycle <35%
∆V
OVL
= V
OVL
- V
FB
600
1.2
0.30
0.20
1.20
60
100
1.8
0.50
0.45
1.4
-1.0
0.4
1.0
150
15
1. 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
4
1106.2007.07.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
