AAT3131ITP-T1 View Datasheet(PDF) - Advanced Analogic Technologies
Part Name
Description
MFG CO.
AAT3131ITP-T1
Advanced Analogic Technologies
'AAT3131ITP-T1' PDF : 14 Pages View PDF
AAT3131
High Efficiency 1X/1.5X Fractional
Charge Pump for White LED Applications
Electrical Characteristics1
VIN = 3.5V, CIN = COUT = C1 = C2 = 1.0µF; TA = -40 to 85°C unless otherwise noted. Typical values are TA = 25°C.
Symbol Description
Input Power Supply
VIN
Operation Range
ICC
Operating Current
ISHDN
IDX
IDX
I(D-Match)
ηCP
Shutdown Current
Max. Output Current D1 to D3
Max. Output Current D4
Current Matching between
any two outputs
Charge Pump Section Efficiency
Charge Pump Section
TSS
FCLK
EN/SET
Soft start time
Clock Frequency
VEN(L)
VEN(H)
TEN/SET LO
TEN/SET HI
TOFF
Input Current
Enable Threshold Low
Enable Threshold High
EN/SET low time
Minimum EN/SET high time
EN/SET Off Timeout
EN/SET input leakage
Conditions
3.0 ≤ VIN ≤ 5.5, Active,
No Load Current
EN = 0
3.0 ≤ VIN ≤ 5.5
3.0 ≤ VIN ≤ 5.5
VD1:D3 = 3.6, VIN = 3.3V
VIN = 3.5V, IOUT(TOTAL) = 90mA,
Measured from IN to OUT
VEN/SET < 0.5
VEN/SET > 1.4
VEN/SET < 0.5
Min Typ Max Units
2.7
5.5
V
1.8 3.5 mA
1.0 µA
18 20
22 mA
27 30
33 mA
0.5
%
93
%
200
µs
1000
kHz
0.5
V
1.4
V
0.3
75
µs
50
ns
500 µs
-1
1
µA
Notes:
1. The AAT3131 is guaranteed to meet performance specification over the -40 to 85°C operating temperature range and are assured by
design, characterization and correlation with statistical process controls.
4
3131.2004.08.1.1
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