AMS1084CD-1.8 [AMS]
5A LDO; 5A LDO
| 型号： | AMS1084CD-1.8 |
| 厂家： | 
Advanced Monolithic Systems Ltd |
| 描述： | 5A LDO |
| 文件： | 总11页 (文件大小：2002K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
5A LDO VOLTAGE REGULATOR
DESCRIPTION
The AMS1084 is a positive low voltage dropout regulator, voltage
dropout is only 1.5V at 5A.
AMS1084 has two versions: the fixed version and the adjustable
version. V
has a tolerance of less than 1% for fixed versions
OUT
TO-263-2L
TO-220-3L
TO-252-2L
1.5V, 1.8V, 2.5V, 3.3V, 5.0V and adjustable version.
The AMS1084 integrates overheating protection and current limit
circuits. It is an suitable for all electronic products.
TO-263-3L
FEATURES
* 1% accuracy for fixed output VOUT while the voltage is 1.5V,
1.8V, 2.5V, 3.3V, 5.0V and the adjustable output VOUT
* Low Dropout Voltage: 1.5V at 5A output current
* Current Limiting: 6.5A
APPLICATIONS
* High Efficiency Linear Regulators
* SMPS Post-Regulator
*Load regulation : 0.1% typical (adjustable version)
*Line regulation : 0.015% typical (adjustable version)
* Temperature Range: 0°C to 125°C
* Battery Charger
* Microprocessor Supply
*Desktop PCs, RISC and embedded processors'supply
ORDERING INFORMATION (Temperature range: 0°C ~125°C)
AMS1084
TR: Tape & Reel
Blank: Tube
Package
Blank: Pb free
CD: TO-252-2L CM: TO-263-2L
: Adjustable Output
1.5: Fixed Output 1.5V
1.8: Fixed Output 1.8V
CT: TO-220-3L
CM: TO-263-3L
2.5: Fixed Output 2.5V
3.3: Fixed Output 3.3V
5.0: Fixed Output 5.0V
1
Advanced Monolithic Systems http://www.ams-semitech.com
Package
Marking
Material
Packing Type
PART NO
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Tube
AMS1084D-ADJ
AMS1084D-ADJTR
AMS1084D-1.5
AMS1084CD
Tape & Reel
Tube
AMS1084CD
AMS1084CD-1.5
AMS1084CD-1.5
AMS1084CD-1.8
AMS1084CD-1.8
AMS1084CD-2.5
AMS1084CD-2.5
AMS1084CD-3.3
AMS1084CD-3.3
AMS1084CD-5.0
AMS1084CD-5.0
AMS1084CM
Tape & Reel
Tube
AMS1084D-1.5TR
AMS1084D-1.8
Tape & Reel
Tube
AMS1084D-1.8TR
AMS1084D-2.5
TO-252-2L
Tape & Reel
Tube
AMS1084D-2.5TR
AMS1084D-3.3
Tape & Reel
Tube
AMS1084D-3.3TR
AMS1084D-5.0
Tape & Reel
Tube
AMS1084D-5.0TR
AMS1084S-ADJ
AMS1084S-ADJTR
AMS1084S-1.5
AMS1084CM-ADJ
AMS1084CM-1.5
AMS1084CM-1.5
AMS1084CM-1.8
AMS1084CM-1.8
AMS1084CM-2.5
AMS1084CM-2.5
AMS1084CM-3.3
AMS1084CM-3.3
AMS1084CM-5.0
AMS1084CM-5.0
AMS1084CT
Tape & Reel
Tube
Tape & Reel
Tube
AMS1084S-1.5TR
AMS1084S-1.8
AMS1084S-1.8TR
AMS1084S-2.5
Tape & Reel
Tube
TO-263-3L
AMS1084S-2.5TR
AMS1084S-3.3
Tape & Reel
Tube
Tape & Reel
AMS1084S-3.3TR
AMS1084S-5.0
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Tube
AMS1084S-5.0TR
AMS1084T-ADJ
AMS1084T-1.5
Tape & Reel
Tube
Tube
AMS1084CT-1.5
AMS1084CT-1.8
AMS1084CT-2.5
AMS1084CT-3.3
AMS1084CT-5.0
AMS1084CM
AMS1084T-1.8
Tube
TO-220-3L
AMS1084T-2.5
Tube
Tube
AMS1084T-3.3
AMS1084T-5.0
Tube
AMS1084S2-ADJ
AMS1084S2-ADJTR
AMS1084S2-1.5
AMS1084S2-1.5TR
AMS1084S2-1.8
AMS1084S2-1.8TR
AMS1084S2-2.5
Tube
Tape & Reel
Tube
AMS1084CM
AMS1084CM-1.5
AMS1084CM-1.5
AMS1084CM-1.8
AMS1084CM-1.8
AMS1084CM-2.5
TO-263-2L
Tape & Reel
Tube
Tape & Reel
Tube
2
Advanced Monolithic Systems http://www.ams-semitech.com
Package
Marking
Material
Packing Type
Tape & Reel
Tube
PART NO
Pb free
Pb free
Pb free
Pb free
Pb free
AMS1084S2-2.5TR
AMS1084S2-3.3
AMS1084S2-3.3TR
AMS1084S2-5.0
AMS1084S2-5.0TR
AMS1084CM-2.5
AMS1084CM-3.3
AMS1084CM-3.3
AMS1084CM-5.0
AMS1084CM-5.0
TO-263-2L
Tape & Reel
Tube
Tape & Reel
BLOCK DIAGRAM
VIN
Current
limit
TSD
VO
Band
gap
Fixed
: F1 and F2 connect, disconnect A
F1
Adj : A connect, F1 and F2 disconnect
F2
A
ADJ/GND
ABOSOLUTE MAXIMUM
Characteristics
Input Supply Voltage
Symbol
Ratings
20
Unit
V
VIN
TLEAD
TJ
Lead Temperature (Soldering,5 Seconds)
Operating Junction Temperature Range
260
°C
°C
V
150
Storage Temperature
Power Dissipation
TS
-65 ~ +150
Internally Limited (Note1)
PD
mW
V
ESD Tolerance (Minimum)
ESD
2000
Note1: The maximum allowable power dissipation is a function of maximum operating junction temperature TJ
(max), the junction to ambient thermal resistance θJA, and the ambient temperature Tamb. The maximum
allowable power dissipation at any ambient temperature is given: PD (max) = (TJ (max) - Tamb)/θJA, exceeding the
maximum allowable power limit will result in excessive die temperature; thus, the regulator will go into thermal
shutdown. The junction to ambient thermal resistance θJA of different packages may be different, and the he
value of θJA depends on mounting technique.
3
Advanced Monolithic Systems http://www.ams-semitech.com
RECOMMENDED OPERATING CONDITIONS
Characteristics
Symbol
VIN
Ratings
12
Unit
V
Input Supply Voltage
Operating Junction Temperature Range
TJ
0 ~ +125
°C
ELECTRICAL CHARACTERISTICS (Tamb=25°C, unless otherwise specified. Limits appearing in Boldface
type apply over the entire junction temperature range for operation, 0°C to 125°C. )
Characteristics Symbol
Conditions
AMS1084-ADJ,
IOUT=10mA, VIN-VOUT=3V,
Min. Typ. Max. Unit
Reference Voltage
VREF
1.238 1.250 1.262
V
V
V
V
V
V
10mA≤IOUT≤5A,1.5V≤VIN-VOUT≤5V 1.225 1.250 1.270
AMS1084-1.5,
IOUT=10mA, VIN=4.5V,
10mA≤IOUT≤5A, 3.0V≤VIN≤6V
AMS1084-1.8,
1.485 1.5 1.515
1.47 1.5 1.53
IOUT=10mA, VIN=4.8V,
10mA≤IOUT≤ 5A, 3.3V≤VIN≤6V
AMS1084-2.5,
1.782 1.8 1.818
1.764 1.8 1.836
Output Voltage
VOUT
IOUT=10mA, VIN=5.5V
10mA≤IOUT≤5A, 4.0V≤VIN ≤7V
AMS1084-3.3,
2.475 2.5 2.525
2.45
2.5
2.55
IOUT=10mA, VIN=6.3V,
10mA≤IOUT≤5A, 4.8V≤VIN≤8V
AMS1084-5.0,
3.267 3.3 3.333
3.234 3.3 3.366
IOUT=10mA, VIN=8V, 10mA≤
IOUT≤5A, 6.5V≤VIN≤10V
AMS1084-ADJ,
4.95
4.9
5
5
5.05
5.1
0.015 0.2
0.035 0.2
%
IOUT=10mA, 2.85V≤VIN≤10V
AMS1084-1.5,
0.5
1
6
6
mV
mV
mV
mV
mV
IOUT=10mA, 3.0V≤VIN≤10V
AMS1084-1.8,
0.5
1
6
IOUT=10mA, 3.3V≤VIN≤10V
AMS1084-2.5,
6
Line Regulation
ΔVOUT
0.5
1
6
IOUT=10mA, 4.0V≤VIN≤10V
AMS1084-3.3,
6
0.5
1
6
IOUT=10mA, 4.8V≤VIN≤10V
AMS1084-5.0,
6
0.5
1
10
10
IOUT=10mA, 6.5V≤VIN≤10V
4
Advanced Monolithic Systems http://www.ams-semitech.com
Characteristics
Symbol
Conditions
Unit
Min. Typ. Max.
AMS1084-ADJ, 0mA≤IOUT≤5A,
VIN-VOUT=3V
0.1
0.2
3
0.3
0.4
15
20
15
20
15
20
15
20
20
35
1.5
%
AMS1084-1.5, 0mA≤IOUT≤5A,
VIN-VOUT=3V
mV
mV
mV
mV
mV
7
AMS1084-1.8, 0mA≤ IOUT≤5A
VIN-VOUT=3V
3
7
Load Regulation ΔVOUT
AMS1084-2.5, 0mA≤IOUT≤5A,
VIN-VOUT=3V
3
7
AMS1084-3.3, 0mA≤IOUT≤5A,
VIN-VOUT=3V
3
7
AMS1084-5.0, 0mA≤IOUT≤5A,
VIN-VOUT=3V
5
10
1.45
Dropout Voltage
VDROP IOUT=5A, ΔVREF, ΔVOUT=1%
V
A
Current Limitting
ILIMIT
ILOAD
(MIN)
IQ
VIN-VOUT=3V
5.5
60
6.5
Minimum Load Current
Quiescent Current
mA
mA
VIN=10V (AMS1084-ADJ)
3
10
10
VIN=10V (AMS1084)
5
fRIPPLE=120Hz, COUT=25μF
IOUT=5A, VIN-VOUT=3V
Ripple Rejection
Adjust Pin Current
PSRR
IADJ
72
55
0.2
dB
μA
μA
VIN=4.25V, IOUT=10mA
10mA≤IOUT≤5A,
120
Adjust Pin Current Change
ΔIADJ
5
1.5V≤(VIN-VOUT)≤4.5V
IOUT=10mA, VIN-VOUT=1.5V
Temperature Stability
Long Term Stability
0.5
0.5
%
%
Tamb=125°C, 1000Hrs
10Hz≤f≤10kHz
RMS Output Noise(% of Vout)
0.003
%
TO-263-3L
TO-263-2L
TO-220-3L
TO-252-2L
60
60
Thermal Resistance
θJA
°C/W
60
100
5
Advanced Monolithic Systems http://www.ams-semitech.com
PIN CONFIGURATION
TO-252-2L
TO-220-3L
TO-263-2L
TO-263-3L
1
2
3
1
2
3
1
2
3
1
2
3
PIN DESCRIPTION
Functions
Pin No.
Pin name
I/O
--/O
O
1
2
3
Ground/ADJ
Output voltage
Input supply voltage
GND/ADJ
V
OUT
V
IN
I
FUNCTION DESCRIPTION
The AMS1084 is a LDO regulator, its pass transistor is made up of a single NPN transistor being driven by a PNP.
The dropout voltage is defined as: VDROP = VBE+ VSAT.
The AMS084 has two versions: the fixed output version and the adjustable output version. Output voltages can be
1.5V, 1.8V, 2.5V, 3.3V, and 5.0V.On-chip thermal shut-down circuit provides protection against overload
and overheating that would create excessive junction temperature.
The adjustable output version requires a 22 μF or bigger tantalum capacitor at output for AMS1084 stability. The
capacitor for fixed output version can be smaller and should be determined base on actual application. Generally,
the stability of linear regulator stability decreases with output currents increase.
6
Advanced Monolithic Systems http://www.ams-semitech.com
TYPICAL APPLICATION CIRCUIT
AMS1084
Vin
Vin
Vout
GND
10uF
22uF
Figure 1. Typical Fixed Output Voltage
AMS1084-ADJ
Vout
Vout
ADJ
10uF
22uF
R1
R2
Vout=Vref X (1+R2/R1) + Iadj X R2
Note: The above circuit and parameters are reference only, please set the parameters of the real application
circuit based on the real test.
7
Advanced Monolithic Systems http://www.ams-semitech.com
TYPICAL CHARACTERISTICS CURVES
PSRR vs. Frequency
Output Voltage Change vs. Temperature Stability
2.0
90
80
70
60
50
40
30
20
10
0
1.0
0
-1.0
-2.0
-50 -25
0
25 50 75 100 125 150
10
100
1K
10K
100K
1M
Temperature
Frequency (Hz)
Short-Circuit Current vs. Dropout Voltage
Load Transient Response
8
7
6
5
4
3
2
1
0
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
5
Cadj=0
Cin=1uF
Cout=10uF Tantalum
Vout=10V
Vin=13V
PRELOAD=100mA
4
2
0
0
2
4
6
8
10
12
0
50
100
Dropout Voltage (V)
Time (uS)
Adjust Pin Current vs. Temperature
Line Transient Response
100
90
80
70
60
50
40
30
20
10
0
60
40
20
0
-20
-40
-60
14
13
12
Cadj=0
Vout=10V
Iin=0.2A
Cin=1uF Tantalum
Cout=10uF Tantalum
0
100
200
-50 -25
0
25 50 75 100 125 150
Temperature
Time (uS)
8
Advanced Monolithic Systems http://www.ams-semitech.com
PACKAGE OUTLINE
TO-252-2L
Unit: mm
6.50±0.25
5.30±0.20
2.30±0.10
0.5±0.1
0.80±0.10
0.0～0.127
2.30 TYP
0.5±0.1
0.60±0.10
4.60±0.10
TO-252-2L
Unit: mm
6.60±0.3
2.30±0.10
5.33 REF
0.45～0.65
0.0～0.10
2.30 TYP
0.45～0.65
0.80±0.10
9
Advanced Monolithic Systems http://www.ams-semitech.com
PACKAGE OUTLINE
TO-220-3L
Unit: mm
4.57±0.20
10.16±0.20
1.27±0.10
Φ3.835±0.100
2.67±0.15
1.27
0.81
0.42±0.11
2.54±0.10
5.08±0.10
Unit: mm
TO-263-2L
10.15+/-0.30
4.57+/-0.10
1.27+/-0.10
0~0.15
1.27+/-0.10
0.30~0.55
0.81+/-0.10
0.54TYP
4.98~5.18
10
Advanced Monolithic Systems http://www.ams-semitech.com
PACKAGE OUTLINE
Unit: mm
TO-263-3L
4.57±0.10
1.27±0.10
+0.15
-0.07
0.38
0～0.15
1.27
0.81
2.54TYP
10.16±0.15
Disclaimer:
•
AMS reserves the right to make changes to the information herein for the improvement of the design and performance
without further notice! Customers should obtain the latest relevant information before placing orders and should verify
that such information is complete and current.
•
All semiconductor products malfunction or fail with some probability under special conditions. When using AMS products
in system design or complete machine manufacturing, it is the responsibility of the buyer to comply with the safety
standards strictly and take essential measures to avoid situations in which a malfunction or failure of such AMS products
could cause loss of body injury or damage to property.
•
AMS will supply the best possible product for customers!
11
Advanced Monolithic Systems http://www.ams-semitech.com
相关型号：
©2020 ICPDF网 联系我们和版权申明