Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS1084
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IOUT = 0 mA, and TJ = +25°C unless otherwise specified.
Parameter
Device
Conditions
Min
Typ
Max
Units
Current Limit
AMS1084/-1.5/-2.5/-
2.85/ -3.0/-3.3/-3.5/-5.0
(VIN - VOUT) = 5V
5.00
6.00
7.00
A
Minimum Load
Current
AMS1084
(VIN - VOUT) = 12V (Note 5)
5
10
mA
Quiescent Current
AMS1084/-1.5/-2.5/-
2.85/ -3.0/-3.3/-3.5/-5.0
VIN ≤ 12V
5
10
mA
Ripple Rejection
AMS1084
f =120Hz , COUT = 25µF Tantalum, IOUT = 5A,
(VIN-VOUT ) = 3V, CADJ =25µF
60
75
dB
AMS1084-1.5
f =120Hz , COUT = 25µF Tantalum, IOUT = 5A,
VIN = 4.5V
60
72
dB
AMS1084-2.5
f =120Hz , COUT = 25µF Tantalum, IOUT = 5A,
VIN = 5.5V
60
72
dB
AMS1084-2.85
f =120Hz , COUT = 25µF Tantalum, IOUT = 5A,
VIN = 6V
60
72
dB
AMS1084-3.0
f =120Hz , COUT = 25µF Tantalum, IOUT = 5A
VIN = 6V
60
72
dB
AMS1084-3.3
f =120Hz , COUT = 25µF Tantalum, IOUT = 5A
VIN = 6.3V
60
72
dB
AMS1084-3.5
f =120Hz , COUT = 25µF Tantalum, IOUT = 5A
VIN = 6.5V
60
72
dB
AMS1084-5.0
f =120Hz , COUT = 25µF Tantalum, IOUT = 5A
VIN = 8V
60
68
dB
Thermal Regulation
AMS1084
TA = 25°C, 30ms pulse
0.008
0.04
%W
Adjust Pin Current
AMS1084
10mA ≤ IOUT ≤ 5A , 1.5V≤ (VIN - VOUT) ≤ 12V
55
120
µA
µA
Adjust Pin Current
Change
AMS1084
10mA ≤ IOUT ≤ 5A , 1.5V≤ (VIN - VOUT) ≤ 12V
0.2
5
µA
Temperature Stability
0.5
%
Long Term Stability
TA =125°C, 1000Hrs
0.3
1
%
RMS Output Noise
(% of VOUT )
TA = 25°C , 10Hz ≤ f ≤ 10kHz
0.003
%
Thermal Resistance
Junction-to-Case
D Package: Control Circuitry/ Power Transistor
M/T Package: Control Circuitry/ Power Transistor
2/6.0
1.5/4.0
°C/W
°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 15W power dissipation for M and T package sand 2.2W for D package @25°C. 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 body.
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 (VIN - VOUT) = 12V the device is guaranteed
to regulate if the output current is greater than 10mA.