AAT3113, AAT3114/14A
High Efficiency 1.5X Fractional Charge
Pumps For White LED Applications
Electrical Characteristics
VIN = 3.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Input Power Supply
Conditions
Min Typ Max Units
VIN
ICC
Operation Range
Operating Current
Shutdown Current
2.7
5.5
2
V
Active, No Load Current
EN = 0
1
mA
µA
ISHDN
1
AAT3113: 3.0V ≤ VIN ≤ 5.5V
AAT3114/14A: 3.2V ≤ VIN ≤ 5.5V Outputs Max Current
TA = 25°C, All
IDX
Output Current
18
-2
20
22
2
mA
Output Current Line
Regulation
ΔID/ΔVIN
3.0V ≤ VIN ≤ 5.5V
%/V
Current Matching
Between Any
Two Outputs
Efficiency
I(D-Match)
VD1:Dn = 3.6V, VIN = 3.3V
VIN = 3.5V, IOUT(total) = 40mA
0.3
93
%
%
η
Charge Pump
tSS Soft-Start Time
FCLK Clock Frequency
400
µs
300 600 900 kHz
EN/SET
VEN(L)
VEN(H)
tLO
Enable Threshold Low VIN = 2.7V to 5.5V
Enable Threshold High VIN = 2.7V to 5.5V
EN/SET Low Time
0.5
75
V
V
1.4
0.3
µs
Minimum EN/SET
High Time
tHI
50
ns
µs
µA
tOFF
Input
Current
EN/SET Off Timeout
300 500
1
EN/SET Input Leakage VIN = 5.5V
-1
4
3113.2006.07.1.9
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
