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EZ1587 반도체 회로 부품 판매점

3.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS



Semtech Corporation 로고
Semtech Corporation
EZ1587 데이터시트, 핀배열, 회로
3.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1587
November 22, 1999
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
The EZ1587 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1587 series provides excellent
regulation over variations in 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 EZ1587 series are three terminal
regulators with fixed and adjustable voltage options
available in popular packages.
APPLICATIONS
Pentium® Processor supplies
PowerPC™ supplies
Other 1.3V to 5.7V microprocessor supplies
Low voltage logic supplies
Battery-powered circuitry
Post regulator for switching supply
BLOCK DIAGRAM
FEATURES
Low dropout performance,
1.3V max. for EZ1587
Full current rating over line and temperature
Fast transient response
±2% total output regulation over line, load
and temperature
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
DEVICE
PACKAGE
EZ1587CT-X.X
EZ1587CM-X.X
TO-220
TO-263(2)
VOUT VOLTS
See Note (1)
See Note (1)
Notes:
(1) Where X.X denotes voltage options. Available
voltages are: 1.5V, 1.8V, 2.5V, 3.3V and 3.45V. Leave
blank for adjustable version (1.3 to 5.7V). Contact
factory for additional voltage options.
(2) Add suffix ‘TR’ for tape and reel (TO-263).
PIN CONFIGURATIONS
© 1999 SEMTECH CORP.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol Maximum Units
Input Supply Voltage
Power Dissipation
Thermal Resistance
Junction to Case
TO-220
TO-263
Thermal Resistance
Junction to Ambient
TO-220
TO-263
Operating Junction
Temperature Range
VIN
PD
θJC
θJA
TJ
7
Internally
Limited
V
W
3 °C/W
3
50
60
0 to 125
°C/W
°C
Storage
Temperature Range
TSTG -65 to 150 °C
Lead Temperature
(Soldering) 10 Sec
TLEAD
260
°C
Pentium Processor is a trademark of Intel Corp. PowerPC is a trademark of IBM
1
652 MITCHELL ROAD NEWBURY PARK CA 91320


EZ1587 데이터시트, 핀배열, 회로
3.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1587
November 22, 1999
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, Adj VIN = 2.75 to 7.0V and ADJ IO = 10mA to 3.0A;
Fixed (VOUT +1.5) to 7.0V and Fixed IO = 0mA to 3.0A
Test Conditions
Test Limits
Parameter
Output Voltage (1)
Symbol
VO
VIN
5V
IO
10mA
TJ(5)
25°C
Min
0.99|VO|
Typ Max
VO 1.01|VO|
Fixed Voltage Version
Reference Voltage (1)
VREF
5V
10mA
O.T. 0.98|VO|
25°C 1.238
VO
1.250
1.02|VO|
1.262
Adj Voltage Version
O.T. 1.225
1.250 1.275
Line Regulation(1)
REG(LINE)
25°C
0.005
0.2
Fixed Voltage Version
0mA
O.T.
0.035
0.2
Units
V
V
%
Adj Voltage Version
Load Regulation(1)
Dropout Voltage(2)
EZ1587
REG(LOAD)
VD
5V
10mA
25°C
O.T.
25°C
O.T.
0.05 0.3 %
0.2 0.4
1V
1.1 1.3
Current Limit
ICL
Quiescent Current
Fixed Voltage Version
IQ
5V
O.T.
O.T.
3.1
4.5 A
10 13 mA
Temperature Coefficient
Adjust Pin Current
TC
IADJ
O.T.
25°C
O.T.
0.004
55
0.02 %/°C
µA
90
Adjust Pin Current
Change
IADJ
O.T.
0.2 5 µA
Temperature Stability
Minimum Load Current
Adj Voltage Version
RMS Output Noise(3)
Ripple Rejection Ratio(4)
TS
IO
VN
RA
5V
5V
5V
0.5A
3.0A
O.T.
O.T.
25°C
O.T.
60
0.5
5
0.003
72
%
10 mA
%VO
dB
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.
© 1999 SEMTECH CORP.
2
652 MITCHELL ROAD NEWBURY PARK CA 91320




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