AAT3122_05 ANALOGICTECH [Advanced Analogic Technologies], AAT3122_05 Datasheet - Page 4

• Manufacturer Part Number: AAT3122_05
• Description: High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Electrical Characteristics
V
T
1. The AAT3122 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
4
Input Power Supply
Charge Pump
A
IN
Input Current
by design, characterization, and correlation with statistical process controls.
= 25°C.
Symbol
EN/SET
= 3.5V; C
V
V
I
F
T
SHDN
T
η
T
V
EN(H)
T
EN(L)
I
I
CLK
OFF
cc
CP
D
SS
LO
HI
IN
IN
= C
Description
Operation Range
Operating Current
Shutdown Current
Maximum Output Current
Soft-Start Time
Clock Frequency
Charge Pump Efficiency
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
High Efficiency 1X/1.5X Fractional Charge
= -40°C to +85°C. Unless otherwise noted, typical values are
Conditions
3.0 ≤ V
No Load Current
EN = 0
V
V
Measured from IN to OUT
V
V
IN
IN
IN
IN
= 3.6V, I
= 3.5V; Code = 32
= 2.7V to 5.5V
= 2.7V to 5.5V
IN
≤ 5.5, Active,
Pump for White LED Applications
OUT(Total)
= 120mA;
Min
-1.0
108
2.7
1.4
0.3
1000
Typ
120
200
1.8
93
50
AAT3122
Max
132
500
5.5
3.5
1.0
0.5
1.0
75
3122.2005.11.1.3
Units
kHz
mA
mA
µA
µA
µs
µs
ns
µs
%
V
V
V