概述
数据手册EZ1083CT-2.5 概述
Positive Fixed Voltage Regulator
正固定电压稳压器\n
EZ1083CT-2.5 数据手册
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PDF下载EZ1083(B)
7.5A Positive
Voltage Regulator
POWER MANAGEMENT
Description
Features
The EZ1083 is a high performance positive voltage
regulator designed for use in applications requiring low
dropout performance at 7.5A. Additionally, the EZ1083
series provides excellent regulation over variations in line,
load and temperature.
u Low dropout performance:
1.3V max. for EZ1083,
1.45V max. for EZ1083B
u Full current rating over line and temperature
u Fast transient response
u Adjust pin current max 90µA over temperature
u Fixed/adjustable output voltage (EZ1083)
u Line regulation typically 0.015%
u Load regulation typically 0.05%
u ±2% total output regulation over line, load
and temperature (±2.4% for EZ1083B)
u TO-220 package
Features include 1.3V dropout at 7.5 amps, fast
transient response, internal current limiting and thermal
shutdown protection of the output device. The EZ1083
has both fixed and adjustable voltage options, while the
EZ1083B is adjustable only for cost sensitive
applications. These devices are available in the popular
TO-220 package.
Applications
The EZ1083 is used in industrial systems to provide power
to microprocessors and chipsets. It is also used to power
ASICs in control systems for medical applications.
u PC Motherboards
u Microcontroller systems
u Medical equipment
u Low power microprocessor systems
u Post regulation for switching power supplies
u Telecommunication systems
Typical Application Circuit
Fixed Voltage Regulator
U1
EZ1083-3.3
3
2
TAB
VIN > 4.75V
VOUT = 3.3V
IN
OUT
+
+
C1
10uF Tant.
C2
GND
1
10uF Tant. Min.
Adjustable Voltage Regulator
U1
EZ1083
OUT
3
2
TAB
VIN > 4.75V
VOUT = 3.45V
IN
+
+
C1
10uF Tant.
R1
C2
ADJ
1
133 Ohm, 1%
10uF Tant. Min
R2
232 Ohm, 1%
R2
R1
VOUT = VREF • 1+
+ IADJ • R2
Notes:
(1) C1 needed if device is far from filter capacitors
(2) C2 minimum value required for stability
1
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Revision 1, November 2000
EZ1083(B)
POWER MANAGEMENT
Absolute Maximum Ratings
Parameter
Symbol
Maximum
Units
Input Supply Voltage
VIN
PD
7
Internally Limited
1.6
V
W
Power Dissipation
Thermal Resistance Junction to Case
Thermal Resistance Junction to Ambient
Operating Junction Temperature Range
Storage Temperature Range
°C/W
°C/W
°C
qJC
50
qJA
TJ
0 to 125
-65 to 150
300
TSTG
TLEAD
°C
Lead Temperature (Soldering) 10 Sec.
°C
Electrical Characteristics
Unless otherwise specified: Adj. VIN = 2.75V to 7.0V and Adj. IO = 10mA to 7.5A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 7.5A
(4)
Parameter
Symbol
VIN
IO
TJ
Min
Typ
Max
Units
(1)
Output Voltage
EZ1083-X.X
VO
5V
OmA
25°C
O.T.
0.99lVOl
0.98lVOl
1.238
VO
VO
1.01lVOl
1.02lVOl
1.262
1.275
1.267
1.280
0.2
V
(1)
(1)
Reference Voltage
EZ1083
VREF
5V
5V
10mA
10mA
10mA
25°C
O.T.
1.250
1.250
1.250
1.250
0.015
0.035
0.05
0.2
V
V
1.225
Reference Voltage
EZ1083B
VREF
25°C
O.T.
1.233
1.220
Line Regulation
REG(LINE)
REG(LOAD)
VD
25°C
O.T.
%
%
V
0.2
Load Regulation (1)
5V
25°C
O.T.
0.3
0.4
(2)
Dropout Voltage
25°C
O.T.
1
EZ1083, EZ1083-X.X
EZ1083B
1.10
1.20
9.5
1.30
1.45
Current Limit
ICL
IQ
O.T.
O.T.
7.5
A
Quiescent Current
5V
12
14
mA
Fixed Voltage Version
Temperature
Coefficient
TC
O.T.
0.005
%/°C
ã 2000 Semtech Corp.
2
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EZ1083(B)
POWER MANAGEMENT
Electrical Characteristics (Cont.)
(4)
Parameter
Symbol
VIN
IO
TJ
Min
Typ
Max
Units
Adjust Pin Current
IADJ
25°C
O.T.
O.T.
55
µA
90
5
Adjust Pin Current
Change
0.2
µA
DIADJ
Temperature Stability
TS
IO
5V
5V
0.5A
7.5A
O.T.
O.T.
0.5
5
%
Minimum Load Current
Adj Voltage Version
10
mA
RMS Output Noise(3)
VN
RA
25°C
O.T.
0.003
72
%VO
dB
Ripple Rejection Ratio(4)
5V
60
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) DVOUT, DVREF = 1%.
(3) Bandwidth of 10 Hz to 10 kHz.
(4) 120 Hz input ripple (CADJ for ADJ = 25µF).
(5) Over Temp. (O.T.) = over specified operating junction temperature range.
ã 2000 Semtech Corp.
3
www.semtech.com
EZ1083(B)
POWER MANAGEMENT
Pin Configuration
Ordering Information
Device
Package(3)
VOUT Volts(2)
Fixed and Adjustable
Adjustable Only
EZ1083CT-X.X(1)
EZ1083BCT
TO-220
TO-220
Note:
(1) Where X.X denotes voltage options. Available
voltages are: 1.5V, 2.5V and 3.3V. Leave blank for
adjustable version. Contact factory for additional
voltage options.
(2) Adjustable versions: output adjusts from 1.3V to
5.7V.
(3) Only available in tube packaging. A tube contains
50 devices.
Block Diagram
ã 2000 Semtech Corp.
4
www.semtech.com
EZ1083(B)
POWER MANAGEMENT
Outline Drawing - TO-220
Contact Information
Semtech Corporation
Power Management Products Division
652 Mitchell Rd., Newbury Park, CA 91320
Phone: (805)498-2111 FAX (805)498-3804
ã 2000 Semtech Corp.
5
www.semtech.com
EZ1083CT-2.5 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| EZ1083CT-3.3 | SEMTECH | 7.5 AMP POSITIVE VOLTAGE REGULATOR | 获取价格 |
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| EZ1083CT-3.45 | ETC | Positive Fixed Voltage Regulator | 获取价格 |
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| EZ1083CT-X.X | SEMTECH | 7.5A Positive Voltage Regulator | 获取价格 |
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| EZ1083_05 | SEMTECH | 7.5A Positive Voltage Regulator | 获取价格 |
|
| EZ1084 | SEMTECH | 5.0 AMP POSITIVE VOLTAGE REGULATOR | 获取价格 |
|
| EZ1084ACM | ETC | Positive Adjustable Voltage Regulator | 获取价格 |
|
| EZ1084ACMT | SEMTECH | Adjustable Positive LDO Regulator, 1.3V Min, 5.7V Max, 1.2V Dropout, PSSO3, TO-263, 3 PIN | 获取价格 |
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| EZ1084ACMTR | ETC | Positive Adjustable Voltage Regulator | 获取价格 |
|
| EZ1084ACMTRT | SEMTECH | Adjustable Positive LDO Regulator, 1.3V Min, 5.7V Max, 1.2V Dropout, PSSO3, TO-263, 3 PIN | 获取价格 |
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