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AS3689 Datasheet(PDF) 10 Page - ams-OSRAM AG

Part # AS3689
Description  Flexible Lighting Management
PDF  72 Pages
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Manufacturer  AMSOSRAM [ams-OSRAM AG]
Direct Link  https://ams-osram.com/
Logo AMSOSRAM - ams-OSRAM AG

AS3689 Datasheet(HTML) 10 Page - ams-OSRAM AG

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AS3689
austriami crosyst ems
Datasheet, Confidential
www.austriamicrosystems.com (mlg, ptr)
Revision 1.0.2 / 20070115
8 - 70
Figure
9 –LDO Block Diagram
VBAT3 3 - 5.5V
+
–
+
–
High-Gain
Low-Bandwidth Amplifier
Low-Gain Ultra High-
Bandwidth Amplifier
VOUT 1.85 - 3.4V
150mA Load
C12
2.2µF
GND
VREF1.8V
DC Reference
PMOS
Power Device
1Ω Max
C2
1µF
RGB3
Table
3 – Analog LDOs Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
Note
VBAT
Supply Voltage Range
3.0
5.5
V
RON
On Resistance
1.0
@150mA, full operating
temperature range
150
mV
@150mA
50
mV
@50mA
VDROPOUT
Dropout Voltage
500
mV
@5mA
50
µA
Without load
IOn
Supply Current
150
With 150mA load
IOFF
Shutdown Current
100
nA
Without load
tstart
Startup Time
200
µs
Vout_tol
Output Voltage Tolerance
-2
+2
%
1.85
2.85
V
VBAT > 3.0V
Vout
Output Voltage
1.85
3.4
V
Full Programmable Range
ILIMIT
LDO Current Limit
300
450
mA
Pin RGB3
. LDO acts as current
source if the output current
exceeds
ILIMIT.



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