EZ1083
7.5A Positive
Voltage Regulator
POWER MANAGEMENT
Description
Features
Low dropout performance: 1.4V max. for EZ1083
Full current rating over line and temperature
Fast transient response
Adjust pin current max 90µA over temperature
Fixed/adjustable output voltage (EZ1083)
Line regulation typically 0.015%
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.
Load regulation typically 0.05%
±2% total output regulation over line, load
and temperature
Features include 1.4V 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. These
devices are available in the popular TO-220 package.
TO-220 package. Available in WEEE and RoHS
compliant 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.
PC Motherboards
Microcontroller systems
Medical equipment
Low power microprocessor systems
Post regulation for switching power supplies
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
R1
C2
10uF Tant.
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: December 21, 2005
