Datasheet EZ1584CT-3.3, EZ1584CT-2.5, EZ1584CT-1.5, EZ1584CT Datasheet (Semtech Corporation)
Page 1
© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
7.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1584
November 22, 1999
1
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
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.
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.
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
BLOCK DIAGRAM
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
PIN CONFIGURATION
Pentium Processor is a trademark of Intel Corp. P owerPC is a trademark of IBM Corp.
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Maximum Units
Input Supply Voltage V
IN
7V
Power Dissipation
P
D
Internally
Limited
W
Thermal Resistance
Junction to Case
TO-220
θ
JC
2°C/W
Thermal Resistance
Junction to Ambient
TO-220
θ
JA
50 °C/W
Operating Junction
Temperature Range
T
J
0 to 125 °C
Storage Temperature
Range
T
STG
-65 to 150 °C
Lead Temperature
(Soldering) 10 Sec
T
LEAD
260 °C
ORDERING INFORMATION
DEVICE PACKAGE V
OUT
VOLTS
EZ1584CT-X.X 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.
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© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
7.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1584
November 22, 1999
2
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, Adj VIN = 2.75V to 7.0V and Adj IO = 10mA to 7.0A;
Fixed V
IN
= 4.75 to 7.0V and Fixed IO = 0 mA to 7.0A
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) ∆V
OUT
, ∆V
REF
= 1%
(3) Bandwidth of 10 Hz to 10 kHz.
(4) 120 Hz input ripple (C
ADJ
for ADJ = 25µF).
(5) Over Temp. (O.T.) = over specified operating junction temperature range.
Test Conditions Test Limits
Parameter Symbol V
IN
I
O
T
J
(5)
Min Typ Max Units
Output Voltage
(1)
V
O
5V 10mA 25°C 0.99lVOlVO1.01lVOlV
Fixed Voltage Version O.T. 0.98lV
O
lVO1.02lVOl
Reference Voltage
(1)
V
REF
5V 10mA 25°C 1.238 1.250 1.262 V
Adj Voltage Version O.T. 1.225 1.250 1.275
Line Regulation
(1)
REG
(LINE)
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
Load Regulation
(1)
REG
(LOAD)
5V 25°C 0.05 0.3 %
O.T. 0.2 0.4
Dropout Voltage
(2)
V
D
25°C 1 V
EZ1584 O.T. 1.1 1.3
Current Limit I
CL
O.T. 7.1 9.0 A
Quiescent Current
Fixed Voltage Version
I
Q
5V O.T. 10 13 mA
Temperature Coefficient T
C
O.T. 0.005 %/°C
Adjust Pin Current I
ADJ
25°C 55 µA
O.T. 90
Adjust Pin Current
Change
∆
I
ADJ
O.T. 0.2 5 µA
Temperature Stability T
S
5V 0.5A O.T. 0.5 %
Minimum Load Current
Adj Voltage Version
I
O
5V O.T. 5 10 mA
RMS Output Noise
(3)
V
N
25°C 0.003 %V
O
Ripple Rejection Ratio
(4)
R
A
5V 7.0A O.T. 60 72 dB
Page 3
© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
7.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1584
November 22, 1999
3
TYPICAL APPLICATIONS
FIXED VOLTAGE REGULATOR
(1)(2)
ADJUSTABLE VOLTAGE REGULATOR
(1)(2)
Page 4
© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
7.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1584
November 22, 1999
4
DEVICE OUTLINE - TO-220
ECN99-734
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