AAT3123 ETC, AAT3123 Datasheet - Page 4

• Manufacturer Part Number: AAT3123
• Description: High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
• Manufacturer: ETC

Electrical Characteristics
C
Note 1: The AAT3123/4 is guaranteed to meet performance specification over the -40°C to 85°C operating temperature range and are
assured by design, characterization and correlation with statistical process controls.
4
Input Power Supply
Charge Pump Section
EN/SET
Input Current
IN
I
T
T
Symbol
SHDN(MAX)
I
= C
EN/SET LO
(D-Match)
EN/SET HI
V
V
F
T
η
T
V
I
EN(H)
EN(L)
I
DX
CLK
OFF
cc
CP
SS
IN
OUT
= C1 = C2 = 1.0µF; T
Description
Operation Range
Operating Current
Shutdown Current
Output Current
Current Matching between any
two outputs
Charge Pump Section Efficiency
Soft start time
Clock Frequency
Enable Threshold Low
Enable Threshold High
EN/SET low time
Minumum EN/SET high time
EN/SET Off Timeout
EN/SET input leakage
A
= -40 to 85°C unless otherwise noted. Typical values are at T
1
High Efficiency 1X/1.5X Fractional Charge
Conditions
3.0 ≤ V
No Load Current
EN=0
V
VD1:D4=3.6, V
VD5:VD6=3.6, V
V
Measured from IN to OUT
V
V
IN
IN
IN
IN
= 3.5V, Code = 32, T
= 3.5V, I
= 2.7 to 5.5V
= 2.7 to 5.5V
IN
≤ 5.5, Active,
Pump for White LED Applications
OUT(TOTAL)
IN
=3.5V
IN
=3.5V
= 120mA,
A
= 25°C
Min
2.7
1.4
0.3
18
-1
1000
Typ
200
1.8
0.5
0.5
20
93
50
A
= 25°C, V
Max
500
5.5
3.5
0.5
22
75
3123.2003.09.1.1
1
1
Units
IN
kHz
mA
mA
µA
µA
µs
µs
µs
ns
%
%
V
V
V
= 3.5V.