AAT3113/4
High Efficiency 1.5X Fractional Charge
Pumps For White LED Applications
Absolute Maximum Ratings (TA=25°C unless otherwise noted)
Symbol
VIN
VOUT
VEN/SET
VEN/SET(MAX)
IOUT
Description
Input Voltage
Charge Pump Output
EN/SET to GND Voltage
Maximum EN/SET to Input Voltage
Maximum DC Output Current (Sum of Iout and D currents)
Thermal Resistance
Value
Units
V
V
V
V
mA
°C/W
°C
-0.3 to 6
-0.3 to 6
-0.3 to 6
0.3
150
37
θJA
TJ
Operating Junction Temperature Range
-40 to 150
Electrical Characteristics
VIN=3.5V, TA = -40 to 85°C unless otherwise noted. Typical values are at TA = 25°C.
Symbol
Description
Conditions
Min Typ Max Units
Input Power Supply
VIN
ICC
Operation Range
Operating Current
Shutdown Current
2.7
5.5
2
1
V
mA
µA
Active, No Load Current
EN=0
1
ISHDN
3113: 3.0 ≤ VIN ≤ 5.5 TA = 25°C, All
3114: 3.2 ≤ VIN ≤ 5.5 Outputs Max Current
3.0 ≤ VIN ≤ 5.5
IDX
Output Current
18
-2
20
22
2
mA
∆ID/∆VIN
Output Current Line
Regulation
%/V
I(D-Match)
Current Matching between VD1:Dn=3.6, VIN=3.3V
0.3
93
%
%
any two outputs
η
Charge Pump
tSS
Efficiency
VIN=3.5, IOUT(total)=40mA
Soft start time
400
µs
FCLK
Clock Frequency
300 600 900
KHz
EN/SET
VEN(L)
VEN(H)
tLO
Enable Threshold Low
Enable Threshold High
EN/SET low time
Minimum EN/SET high time
EN/SET Off Timeout
VIN = 2.7 to 5.5V
VIN = 2.7 to 5.5V
0.5
75
V
V
µs
ns
µs
µA
1.4
0.3
tHI
tOFF
50
300 500
1
Input Current EN/SET input leakage
VIN = 5.5V
-1
3113.2004.07.1.4
3
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
