EZ1588CT [SEMTECH]
2.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS; 2.0 AMP低压差正稳压器
| 型号： | EZ1588CT |
| 厂家： | 
SEMTECH CORPORATION |
| 描述： | 2.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS |
| 文件： | 总4页 (文件大小：100K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
2.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1588
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
April 7, 1998
DESCRIPTION
FEATURES
The EZ1588 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1588 series provides excellent
regulation over variations in line, load and temperature.
•= Low dropout performance,
1.3V max. for EZ1588
•= Full current rating over line and temperature
•= Fast transient response
•= ±2% total output regulation over line, load
and temperature
Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device. The EZ1588 series are three terminal
regulators with fixed and adjustable voltage options
available in popular packages.
•= Adjust pin current max. 90µA over temperature
•= Fixed/adjustable output voltage
•= Line regulation typically 0.005%
•= Load regulation typically 0.05%
•= TO-220 or TO-263 packages
ORDERING INFORMATION
APPLICATIONS
DEVICE
PACKAGE
VOUT VOLTS
•= Pentium® Processor supplies
•= PowerPC™ supplies
EZ1588CT-X.X
EZ1588CM-X.X
TO-220
TO-263(2)
See Note (1)
See Note (1)
•= Other 2.5V to 3.6V microprocessor supplies
•= Low voltage logic supplies
•= Battery-powered circuitry
Notes:
•= Post regulator for switching supply
(1) Where X.X denotes voltage options. Available
voltages are: 2.5V and 3.3V. Leave blank for
adjustable version (1.3 to 5.7V). Contact factory for
additional voltage options.
BLOCK DIAGRAM
(2) Add suffix ‘TR’ for tape and reel (TO-263).
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol Maximum Units
Input Supply Voltage
Power Dissipation
VIN
7
V
Internally
Limited
PD
W
Thermal Resistance
Junction to Case
TO-220
3
3
°C/W
°C/W
θJC
TO-263
PIN CONFIGURATIONS
Thermal Resistance
Junction to Ambient
TO-220
50
60
θJA
TO-263
Operating Junction
Temperature Range
TJ
0 to 125
-65 to 150
260
°C
°C
°C
Storage
Temperature Range
TSTG
TLEAD
Lead Temperature
(Soldering) 10 Sec
1
Pentium Processor is a trademark of Intel Corp. PowerPC is a trademark of IBM Corp.
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
2.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1588
April 7, 1998
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, Adj VIN = 2.75 to 7.0V and ADJ IO = 10mA to 2.0A;
Fixed VIN = 4.75 to 7.0V and Fixed IO = 0mA to 2.0A
Test Conditions
Test Limits
Typ
(5)
Parameter
Symbol
VIN
IO
TJ
Min
Max
Units
Output Voltage (1)
Fixed Voltage Version
Reference Voltage (1)
Adj Voltage Version
Line Regulation(1)
Fixed Voltage Version
Adj Voltage Version
Load Regulation(1)
VO
5V
0mA
25°C 0.99|VO|
VO
1.01|VO|
1.02|VO|
1.262
1.275
0.2
V
O.T.
25°C
O.T.
25°C
O.T.
0.98|VO|
1.238
VO
VREF
5V
10mA
1.250
1.250
0.005
0.035
V
1.225
REG(LINE)
%
0mA
0.2
10mA
REG(LOAD)
5V
25°C
O.T.
25°C
O.T.
O.T.
0.05
0.2
1
0.3
0.4
%
V
Dropout Voltage(2)
Current Limit
VD
1.1
2.5
1.3
ICL
IQ
2.0
A
Quiescent Current
Fixed Voltage Version
5V
O.T.
10
13
mA
Temperature Coefficient
Adjust Pin Current
TC
O.T.
25°C
O.T.
0.004
55
0.02
%/°C
µA
IADJ
90
5
Adjust Pin Current
Change
O.T.
O.T.
O.T.
0.2
0.5
5
µA
%
∆IADJ
Temperature Stability
TS
5V
5V
0.5A
2.0A
Minimum Load Current
Adj Voltage Version
RMS Output Noise(3)
Ripple Rejection Ratio(4)
IO
10
mA
VN
RA
25°C
O.T.
0.003
72
%VO
dB
5V
60
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) ∆VOUT, ∆VREF = 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.
2
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
2.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1588
April 7, 1998
TYPICAL APPLICATIONS
FIXED VOLTAGE REGULATOR (1)(2)
ADJUSTABLE VOLTAGE REGULATOR (1)(2)
3
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
2.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1588
April 7, 1998
DEVICE OUTLINE - TO-220
DEVICE OUTLINE - TO-263
4
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
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