AAT3131_08 ANALOGICTECH [Advanced Analogic Technologies], AAT3131_08 Datasheet - Page 4

• Manufacturer Part Number: AAT3131_08
• Description: High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Electrical Characteristics
V
1. The AAT3131 is guaranteed to meet performance specifications over the -40 to +85°C operating temperature range and is assured
4
Input Power Supply
Charge Pump Section
EN/SET
IN
Input Current
by design, characterization, and correlation with statistical process controls.
T
Symbol
T
= 3.5V, C
I
EN/SET LO
(D-Match)
EN/SET HI
V
V
I
F
T
SHDN
η
T
V
I
I
I
EN(L)
EN(H)
OFF
CC
DX
DX
CLK
CP
SS
IN
IN
= C
Description
Operation Range
Operating Current
Shutdown Current
Maximum Output Current
D1 to D3
Maximum Output Current D4
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
Minimum EN/SET High Time
EN/SET Off Timeout
EN/SET Input Leakage
OUT
= C
1
= C
2
= 1.0µF; T
1
A
= -40 to +85°C, unless otherwise noted. Typical values are T
Charge Pump for White LED Applications
Conditions
3.0 ≤ V
No Load Current
EN = 0
3.0 ≤ V
3.0 ≤ V
VD1:D3 = 3.6, V
V
Measured from IN to OUT
V
V
V
IN
EN/SET
EN/SET
EN/SET
= 3.5V, I
IN
IN
IN
< 0.5
> 1.4
< 0.5
≤ 5.5, Active,
≤ 5.5
≤ 5.5
High Efficiency 1X/1.5X Fractional
OUT(TOTAL)
IN
= 3.3V
= 90mA,
Min
2.7
1.4
0.3
18
27
-1
1000
Typ
200
1.8
0.5
20
30
93
50
AAT3131
Max
500
5.5
3.5
1.0
0.5
22
33
75
1
3131.2005.12.1.2
A
Units
= 25°C.
kHz
mA
m
mA
µA
µA
µs
µs
ns
µs
%
%
V
V
V
A