AMS2908CD Просмотр технического описания (PDF) - Advanced Monolithic Systems Inc
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AMS2908CD Datasheet PDF : 7 Pages
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AMS2908
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IOUT = 0 mA, and TJ = +25°C unless otherwise specified.
Parameter
Device
Conditions
Min Typ Max Units
Load Regulation
(Notes 2, 3)
AMS2908-2.85
AMS2908-3.3
AMS2908-5.0
VIN = 5V, 0 ≤ IOUT ≤ 800mA
VIN = 5V, 0 ≤ IOUT ≤ 800mA
VIN = 8V, 0 ≤ IOUT ≤ 800mA
Dropout Voltage
(VIN - VOUT)
Current Limit
Minimum Load
Current
Quiescent Current
Ripple Rejection
Thermal Regulation
Adjust Pin Current
AMS2908-1.5/-1.8/-2.5/- ∆VOUT , ∆VREF = 1%, IOUT = 800mA (Note 4)
2.85/-3.3/-5.0
AMS2908-1.5/-1.8/-2.5/- (VIN - VOUT) = 5V
2.85/-3.3/-5.0
AMS2908
(VIN - VOUT) = 12V (Note 5)
AMS2908-1.5/-1.8/-2.5/-
2.85/-3.3/-5.0
VIN ≤ 12V
AMS2908
AMS2908-1.5/-1.8/-2.5/-
2.85
AMS2908-3.3
AMS2908-5.0
AMS2908
AMS2908
f =120Hz , COUT = 25µF Tantalum, IOUT = 800mA,
(VIN-VOUT ) = 3V, CADJ =25µF
f =120Hz , COUT = 25µF Tantalum, IOUT = 800mA,
VIN = 6V
f =120Hz , COUT = 25µF Tantalum, IOUT = 800mA
VIN = 6.3V
f =120Hz , COUT = 25µF Tantalum, IOUT = 800mA
VIN = 8V
TA = 25°C, 30ms pulse
10mA ≤ IOUT ≤ 800mA , 1.5V≤ (VIN - VOUT) ≤ 12V
Adjust Pin Current
Change
Temperature Stability
AMS2908
Long Term Stability
RMS Output Noise
(% of VOUT )
Thermal Resistance
Junction-to-Case
10mA ≤ IOUT ≤ 800mA , 1.5V≤ (VIN - VOUT) ≤ 12V
TA =125°C, 1000Hrs
TA = 25°C , 10Hz ≤ f ≤ 10kHz
3
12
6
20
3
15
7
25
5
20
10
35
1.1
1.3
900
1,100
1,500
5
10
5
10
60
75
60
72
60
72
60
68
0.008
0.04
55
120
0.2
5
0.5
0.3
1
0.003
15
mV
mV
mV
mV
mV
mV
V
mA
mA
mA
dB
dB
dB
dB
%W
µA
µA
µA
%
%
%
°C/W
Parameters identified with boldface type apply over the full operating temperature range.
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and test conditions, see the
Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed.
Note 2: Line and Load regulation are guaranteed up to the maximum power dissipation of 1.2 W. Power dissipation is determined by the input/output
differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range.
Note 3: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction
temperature by low duty cycle pulse testing. Load regulation is measured at the output lead ~1/8” from the package.
Note 4: Dropout voltage is specified over the full output current range of the device.
Note 5: Minimum load current is defined as the minimum output current required to maintain regulation. When 1.5V ≤ (VIN - VOUT) ≤ 12V the device is
guaranteed to regulate if the output current is greater than 10mA.
Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723
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