AAT1270_08 Datasheet, PDF (6/18 Pages) Advanced Analogic Technologies – 1A Step-Up Current Regulator for Flash LEDs

SwitchReg^TM
Typical Characteristics
Flash Mode Output Ripple
(500mA/channel; V_IN = 3.1V)
3.26
3.22
3.18
0V
1.4
1.2
1.0
Time (200ns/div)
PRODUCT DATASHEET
AAT1270
1A Step-Up Current Regulator for Flash LEDs
Movie Mode Output Ripple
(68.5mA/channel; V_IN = 3.0V)
3.18
3.16
3.14
0V
0.2
0.0
Time (500ns/div)
EN/SET, FLEN Input High Threshold
vs. Input Voltage
1.2
-40°C
1.0
0.8
0.6
85°C
25°C
0.4
0.2
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
EN/SET, FLEN Input Low Threshold
vs. Input Voltage
1.2
-40°C
1.0
0.8
0.6
25°C
85°C
0.4
0.2
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
EN/SET Latch Timeout vs. Input Voltage
450
400
-40°C
350
85°C
300
25°C
250
200
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
EN/SET Off Timeout vs. Input Voltage
550
500
-40°C
450
400
350
25°C
300
85°C
250
200
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
6
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1270.2008.07.1.5