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AAT3158 Datasheet(PDF) 4 Page - Advanced Analogic Technologies

Part No. AAT3158
Description  High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
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Maker  ANALOGICTECH [Advanced Analogic Technologies]
Homepage  http://www.analogictech.com
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AAT3158 Datasheet(HTML) 4 Page - Advanced Analogic Technologies

 
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Electrical Characteristics
1
CIN = COUT = C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C,
VIN = 3.6V.
Symbol
Description
Conditions
Min
Typ
Max
Units
Input Power Supply
VIN
Operation Range
2.7
5.5
V
1X Mode, 3.0 ≤ VIN ≤ 5.5, Active,
0.3
1
No Load Current
1.5X Mode, 3.0 ≤ VIN ≤ 5.5, Active,
1
3
mA
ICC
Operating Current
No Load Current
2X Mode, 3.0 ≤ VIN ≤ 5.5, Active,
1
No Load Current
50µA Setting, 1X Mode
50
µA
ISHDN
Shutdown Current
EN/SET = 0
1
µA
IDX
ISINK Average Current Accuracy
18
20
22
mA
I(D-Match)
Current Matching2
VF:D1:D4 = 3.6V
0.5
1
%
VTH
1X to 1.5X or 1.5X to 2X Transition
150
mV
Threshold at Any ISINK Pin
Charge Pump Section
TSS
Soft-Start Time
100
µs
FCLK
Clock Frequency
1000
kHz
EN/SET
VEN(L)
Enable Threshold Low
VIN = 2.7V
0.4
V
VEN(H)
Enable Threshold High
VIN = 5.5V
1.4
V
TEN/SET LO
EN/SET Low Time
0.3
75
µs
TEN/SET HI MIN
Minimum EN/SET High Time
50
ns
TEN/SET HI MAX Maximum EN/SET High Time
75
µs
TOFF
EN/SET Off Timeout
500
µs
TLAT
EN/SET Latch Timeout
500
µs
IEN/SET
EN/SET Input Leakage
-1
1
µA
AAT3158
High Efficiency 1X/1.5X/2X Charge Pump
for White LED Applications
4
3158.2006.02.1.0
1. The AAT3158 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
by design, characterization, and correlation with statistical process controls.
2. Current matching is defined as the deviation of any sink current from the average of all active channels.


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