PRODUCT DATASHEET
AAT1217
SwitchReg
TM
600mA, 1.2MHz, Micropower Synchronous Step-Up Converter
Electrical Characteristics
1
V
IN
= 1.2V, V
OUT
= 3.3V, T
A
= 25°C, unless otherwise noted.
Symbol
V
IN
V
OUT
V
FB
ΔV
OUT
/
V
OUT
/ΔV
IN
Description
Minimum Start-Up Voltage
Minimum Operating Voltage
Output Voltage Range
Output Voltage Accuracy
3
Reference Voltage
Reference Voltage Line
Regulation
Conditions
I
OUT
= 1mA
V
SHDN
= V
IN
Min
Typ
0.85
0.5
Max
1
0.65
5.5
+4
Units
V
V
%
V
%/V
2.5
I
OUT
= 10mA; T
A
= -40°C to
+85°C
T
A
= -40°C to +85°C
V
IN
= 1.2V to 2.4V, I
OUT
= 10mA,
V
OUT
= 3.3V
V
IN
= 2.4V to 4.2V, I
OUT
=
10mA,V
OUT
= 5.0V
V
IN
= 1.2V, I
OUT
= 10mA to
100mA, V
OUT
= 3.3V
V
IN
= 3.6V, I
OUT
= 10mA to
400mA, V
OUT
= 5.0V
V
SHDN
= 0
Measured on V
OUT
, V
SHDN
= V
IN
V
SW
= 5V
V
SW
= 0V
V
OUT
= 3.3V
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 5V
-4
1.192
1.230
0.2
0.4
0.003
1.268
ΔV
OUT
/
V
OUT
/ΔI
OUT
I
Q
I
LNMOS
I
LPMOS
R
DS(ON)L
R
DS(ON)H
I
CL
Δt(I
CL
)
D
MAX
F
OSC
V
SHDN
I
SHDN
T
SD
Reference Voltage Load
Regulation
Quiescent Current (Shutdown)
Quiescent Current (Active)
NMOS Switch Leakage
PMOS Switch Leakage
NMOS Switch ON Resistance
PMOS Switch ON Resistance
NMOS Current Limit
Current Limit Delay to Output
Maximum Duty Cycle
Switching Frequency
SHDN Input Low
SHDN Input High
SHDN Input Current
Thermal Shutdown
%/mA
0.004
0.01
300
0.1
0.1
0.35
0.30
0.60
0.55
1200
40
85
1.2
1.5
0.35
1
1
500
5
5
μA
μA
μA
Ω
Ω
mA
ns
%
MHz
V
μA
°C
750
V
FB
= 1.15V, T
A
= -40°C to +85°C
T
A
= -40°C to +85°C
80
0.9
1.00
V
SHDN
= 5.5V
Hysteresis
0.01
160
20
1. Specifications over the temperature range are guaranteed by design, characterization, and correlation with statistical process controls.
2. Not including the current into internal resistance divider.
3. For fixed 3.3V and 5.0V output voltage version. The adjustable output voltage is guaranteed by reference voltage accuracy.
4
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1217.2008.03.1.3
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