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| AAT3123 Datasheet, PDF (4/18 Pages) List of Unclassifed Manufacturers – High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications | |||
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AAT3123/23A/24
High Efficiency 1X/1.5X Fractional Charge
Pump for White LED Applications
Electrical Characteristics1
CIN = COUT = C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C,
VIN = 3.5V.
Symbol Description
Input Power Supply
VIN
Operation Range
Icc
Operating Current
ISHDN(MAX)
IDX
I(D-Match)
ηCP
Shutdown Current
Output Current
Current Matching Between Any
Two Outputs
Charge Pump Section Efficiency
Charge Pump Section
TSS
FCLK
EN/SET
Soft-Start Time
Clock Frequency
VEN(L)
VEN(H)
TEN/SET LO
TEN/SET HI
TOFF
Input Current
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
Minumum EN/SET High Time
EN/SET Off Timeout
EN/SET Input Leakage
Conditions
3.0 ⤠VIN ⤠5.5, Active,
No Load Current
EN = 0
VIN = 3.5V, Code = 32, TA = 25°C
VD1:D4 = 3.6V, VIN = 3.5V
VD5:VD6 = 3.6V, VIN = 3.5V
VIN = 3.5V, IOUT(TOTAL) = 120mA,
Measured from IN to OUT
VIN = 2.7V to 5.5V
VIN = 2.7V to 5.5V
Min
2.7
18
1.4
0.3
-1
Typ
1.8
20
0.5
0.5
93
200
1000
50
Max Units
5.5
V
3.5 mA
1
µA
22 mA
%
%
µs
kHz
0.5
V
V
75
µs
ns
500 µs
1
µA
1. The AAT3123/4 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.
4
3123.2005.12.1.4
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