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AAT3194 Datasheet(PDF) 4 Page - Advanced Analogic Technologies

Part No. AAT3194
Description  High Efficiency 1.5X Fractional Charge Pump For White LED Applications
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Maker  ANALOGICTECH [Advanced Analogic Technologies]
Homepage  http://www.analogictech.com
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AAT3194 Datasheet(HTML) 4 Page - Advanced Analogic Technologies

 
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AAT3194
High Efficiency 1.5X Fractional Charge
Pump For White LED Applications
4
3194.2006.09.1.0
Electrical Characteristics
VIN = 3.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Conditions
Min Typ Max Units
Input Power Supply
VIN
Operation Range
2.7
V
ICC
Operating Current
Active, No Load Current
3
mA
ISHDN
Shutdown Current
EN = 0V
1
µA
IDX
Output Current
3.0V
≤ VIN ≤ 5.5V, TA = 25°C, All Outputs Max Current
16
20
24
mA
ΔID/ΔVIN
Output Current Line
3.0V
≤ VIN ≤ 5.5V
-3
3
%/V
Regulation
Current Matching
I(D-Match)
Between Any
VD1:Dn = 3.6V, VIN = 3.3V
0.3
%
Two Outputs
η
Efficiency
VIN = 3.5V, IOUT(total) = 40mA
93
%
Charge Pump
tSS
Soft-Start Time
400
µs
FCLK
Clock Frequency
300
kHz
EN/SET
VEN(L)
Enable Threshold Low
VIN = 2.7V to 5.5V
0.5
V
VEN(H)
Enable Threshold High VIN = 2.7V to 5.5V
1.4
V
tLO
EN/SET Low Time
0.3
75
µs
tHI
Minimum EN/SET
50
ns
High Time
tOFF
EN/SET Off Timeout
500
µs
Input
EN/SET Input Leakage VIN = 5.5V
-1
1
µA
Current


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