Semtech EZ1584CT 7.0 amp low dropout positive voltage regulator Datasheet

7.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
November 22, 1999
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
The EZ1584 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1584 series provides excellent
regulation over variations in line, load and temperature.
FEATURES
• Low dropout performance,
•
•
•
1.3V max. for EZ1584
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 0.015%
Load regulation typically 0.05%
TO-220 package
Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device. The EZ1584 series are three terminal
regulators with fixed and adjustable voltage options
available in the popular TO-220 package.
•
•
•
•
•
APPLICATIONS
• Pentium® Processor supplies
• PowerPC™ supplies
• Other 2.5V to 3.6V microprocessor supplies
• Low voltage logic supplies
• Battery-powered circuitry
• Post regulator for switching supply
ORDERING INFORMATION
BLOCK DIAGRAM
EZ1584
DEVICE
EZ1584CT-X.X
PACKAGE
VOUT VOLTS
TO-220
See Note (1)
Note:
(1) Where X.X denotes voltage options. Available
voltages are: 1.5V, 2.5V and 3.3V. Leave blank for
adjustable version (1.3 to 5.7V). Contact factory for
additional voltage options.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Maximum
Units
VIN
7
V
PD
Internally
Limited
W
Thermal Resistance
Junction to Case
TO-220
θJC
2
°C/W
Thermal Resistance
Junction to Ambient
TO-220
θJA
50
°C/W
Operating Junction
Temperature Range
TJ
0 to 125
°C
Storage Temperature
Range
TSTG
-65 to 150
°C
Lead Temperature
(Soldering) 10 Sec
TLEAD
260
°C
Input Supply Voltage
Power Dissipation
PIN CONFIGURATION
Pentium Processor is a trademark of Intel Corp. PowerPC is a trademark of IBM Corp.
© 1999 SEMTECH CORP.
1
652 MITCHELL ROAD NEWBURY PARK CA 91320
7.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1584
November 22, 1999
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, Adj VIN = 2.75V to 7.0V and Adj IO = 10mA to 7.0A;
Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 7.0A
Test Conditions
Parameter
(1)
Output Voltage
Symbol
VIN
IO
VO
5V
10mA
TJ
Fixed Voltage Version
Reference Voltage
(1)
VREF
5V
10mA
Adj Voltage Version
(1)
REG(LINE)
Line Regulation
Test Limits
(5)
Min
Typ
Max
Units
25°C
0.99lVOl
VO
1.01lVOl
V
O.T.
0.98lVOl
VO
1.02lVOl
25°C
1.238
1.250
1.262
O.T.
1.225
1.250
1.275
25°C
0.015
0.2
Fixed Voltage Version
0mA
O.T.
0.035
0.2
Adj Voltage Version
10mA
O.T.
0.035
0.2
25°C
0.05
0.3
O.T.
0.2
0.4
25°C
1
O.T.
1.1
(1)
Load Regulation
REG(LOAD)
(2)
5V
VD
Dropout Voltage
EZ1584
Current Limit
ICL
Quiescent Current
Fixed Voltage Version
IQ
Temperature Coefficient
Adjust Pin Current
O.T.
5V
7.1
O.T.
0.005
%/°C
IADJ
25°C
55
µA
5V
Minimum Load Current
Adj Voltage Version
IO
5V
0.5A
VN
Ripple Rejection Ratio
A
TC
TS
(4)
1.3
10
∆IADJ
(3)
%
O.T.
Temperature Stability
RMS Output Noise
%
V
9.0
O.T.
Adjust Pin Current
Change
V
RA
5V
7.0A
13
mA
90
O.T.
0.2
O.T.
0.5
O.T.
5
25°C
0.003
%VO
72
dB
O.T.
60
5
µA
%
10
mA
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
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
7.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1584
November 22, 1999
TYPICAL APPLICATIONS
FIXED VOLTAGE REGULATOR
(1)(2)
ADJUSTABLE VOLTAGE REGULATOR
(1)(2)
3
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
7.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1584
November 22, 1999
DEVICE OUTLINE - TO-220
ECN99-734
4
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
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