High Efficiency 2X Charge Pump
Electrical Characteristics
1
V
IN
= 3.3V; C
IN
= C
OUT
= C
FLY
= 1.0μF; T
A
= -40°C to 85°C, unless otherwise noted. Typical values are T
A
= 25°C.
Symbol
AAT3119-5.0
Power Supply
V
IN
V
OUT
I
CC
I
SHDN
I
OUT
η
EN
V
EN(L)
V
EN(H)
I
i
Charge Pump
T
SS
F
CLK
AAT3119-4.5
Power Supply
V
IN
V
OUT
I
CC
I
SHDN
I
OUT
η
EN
V
EN(L)
V
EN(H)
I
i
Charge Pump
T
SS
F
CLK
Enable Threshold Low
Enable Threshold High
Enable Input Current
Soft-Start Time
Clock Frequency
0.4
EN = 5.5V
1.4
-1.0
200
1200
1.0
V
V
μA
μs
kHz
Enable Threshold Low
Enable Threshold High
Enable Input Current
Soft-Start Time
Clock Frequency
0.4
EN = 5.5V
1.4
-1.0
200
1200
1.0
V
V
μA
μs
kHz
AAT3119
Description
Conditions
Min Typ Max Units
Input Voltage Range
Output Voltage Tolerance
Output Voltage
Operating Current
Shutdown Current
Maximum Output Current
Efficiency
2.7
2.7V < V
IN
< 5V, I
OUT
= 50mA
3.0V < V
IN
< 5V, I
OUT
= 100mA
V
IN
=
5.0V, Active, No Load Current
EN = 0
3.0
≤
V
IN
≤
5.5
V
IN
= 3.0V, I
OUT
= 100mA
4.8
±4
5.0
2.0
5.5
5.2
4.5
1.0
150
82
V
%
V
mA
μA
mA
%
Input Voltage Range
Output Voltage
Operating Current
Shutdown Current
Maximum Output Current
Efficiency
2.7V < V
IN
< 5V, I
OUT
= 50mA
3.0V < V
IN
< 5V, I
OUT
= 100mA
V
IN
= 4.5V, Active, No Load Current
EN = 0
3.0
≤
V
IN
≤
5.5
V
IN
= 2.7V, I
OUT
= 100mA
2.7
4.32
±4
4.5
2.0
5.5
4.68
4.5
1.0
150
82
V
%
V
mA
μA
mA
%
1. The AAT3119 is guaranteed to meet performance specifications from 0°C to 70°C. Specification over the -40°C to +85°C operating
temperature range is assured by design, characterization, and correlation with statistical process controls.
4
3119.2007.02.1.2
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
