AAT3151B Datasheet, PDF (6/15 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X Charge Pump For White LED Applications

Typical Characteristics
Load Characteristics
(V_IN = 3.7V; 1.5X Mode; 15mA Load)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
Time (500ns/div)
AAT3151B
High Efficiency 1X/1.5X Charge Pump
For White LED Applications
V_IN
(40mV/div)
CP
(40mV/div)
Load Characteristics
(V_IN = 3.9V; 1.5X Mode; 20mA Load)
V_SINK
(40mV/div)
Time (500ns/div)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
Load Characteristics
(V_IN = 4.2V; 1.5X Mode; 30mA Load)
Time (500ns/div)
EN/SET Latch Timeout vs. Input Voltage
350
300
250
-40°C
200
150
100
25°C
85°C
50
0
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
EN/SET Off Timeout vs. Input Voltage
400
350
300
-40°C
250
200
150
25°C
85°C
100
50
0
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
Input Ripple vs. Input Voltage
20
18
30mA
16
14
12
20mA
10
8
6
10.2mA
4
2
0
2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00
Input Voltage (V)
6
3151B.2007.09.1.0