PRODUCT DATASHEET
AAT3169
SwitchReg
TM
High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
Electrical Characteristics
1
C
IN
= C
OUT
= C
1
= C
2
= 1.0µF; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= 25°C, V
IN
= 3.6V.
Symbol
Description
Conditions
Min
2.7
1X Mode, 3.0
≤
V
IN
≤
5.5, Active,
No Load Current, High Current Mode
1.5X Mode, 3.0
≤
V
IN
≤
5.5, Active,
No Load Current, High Current Mode
2X Mode, 3.0
≤
V
IN
≤
5.5, Active,
No Load Current, High Current Mode
1X Mode, 3.0
≤
V
IN
≤
5.5, D6 Active,
No Load Current, Low Current Mode
V
EN/SET
= 0V
I
SET
= 20mA, T
A
= 25°C
I
SET
= 2.4mA, T
A
= 25°C
I
SET
= 400µA, T
A
= 25°C
V
F
:D1:D6 = 3.6V
I
SET
= 20mA
0.3
1
1
65
-10
-20
-20
0.5
150
100
1000
V
IN
= 2.7V
V
IN
= 5.5V
0.4
1.4
0.3
50
75
500
500
1
75
90
1
10
20
20
1
µA
µA
%
%
mV
µs
kHz
V
V
µs
ns
µs
µs
µs
µA
mA
Typ
Max
5.5
Units
V
Input Power Supply
Operation Range
V
IN
I
CC
Operating Current
I
SHDN
I
DX
Shutdown Current
Current Accuracy
Low Current Accuracy
I
(D-Match)
Current Matching
2
1X to 1.5X or 1.5X to 2X Transition
V
TH
Threshold at Any I
SINK
Pin
Charge Pump Section
T
SS
Soft-Start Time
F
CLK
Clock Frequency
EN/SET
V
EN(L)
Enable Threshold Low
V
EN(H)
Enable Threshold High
T
EN/SET LO
EN/SET Low Time
T
EN/SET_HI_MIN
Minimum EN/SET High Time
T
EN/SET_HI_MAX
Maximum EN/SET High Time
T
OFF
EN/SET Off Timeout
EN/SET Latch Timeout
T
LAT
I
EN/SET
EN/SET Input Leakage
-1
1. The AAT3169 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
2. Current matching is defined as the deviation of any sink current from the average of all active channels.
4
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