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Details, datasheet, quote on part number:EZ1083-3.3
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Datasheet text preview:
POWER MANAGEMENT Description
T h e 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. F e a t u r e s 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. 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.
EZ1083 7.5A Positive Voltage Regulator
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% Load regulation typically 0.05% ±2% total output regulation over line, load and temperature TO-220 package
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 VIN > 4.75V 3 IN EZ1083-3.3 2 TAB OUT VOUT = 3.3V
+
C1 10uF Tant.
GND 1
+
C2 10uF Tant. Min.
Adjustable Voltage Regulator
VIN > 4.75V 3 U1 IN TAB EZ1083 OUT 2 VOUT = 3.45V
+
C1 10uF Tant.
ADJ 1
R1 133 Ohm, 1%
+
C2 10uF Tant. Min
Notes: (1) C1 needed if device is far from filter capacitors (2) C2 minimum value required for stability
Revision 5, May 2003 1
R2 232 Ohm, 1%
R2 VOUT = VREF · 1 + + I ADJ · R 2 R1
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EZ1083
POWER MANAGEMENT Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied.
Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction to Case Thermal Resistance Junction to Ambient Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) 10 Sec.
Symbol VIN PD J C J A TJ TSTG TLEAD
Maximum 7 Internally Limited 1.6 50 0 to 125 -65 to 150 300
Units V W °C/W °C/W °C °C °C
Electrical Characteristics
Unless otherwise specified: Adj. VIN = 2.75V to 7.0V and Adj. IO = 10mA to 7.5A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 7.5A
Parameter Output Voltage EZ1083-X.X Reference Voltage EZ1083 Line Regulation
(1) (1)
Symbol VO
VIN 5V
IO 0mA
TJ(5) 25°C O.T.
Min 0.985lVOl 0.98lVOl 1.231 1.225
Typ VO VO 1.250 1.250 0.015 0.035 0.05 0.2 1 1.20
Max 1.015lVOl 1.02lVOl 1.269 1.275 0.2 0.2 0.3 0.4
Units V
VREF
5V
10mA
25°C O.T.
V
REG(LINE)
10mA
25°C O.T.
%
Load Regulation (1)
REG(LOAD)
5V
25°C O.T.
%
Dropout Voltage
(2)
VD
25°C O.T.
V 1.40 A 14 mA %/°C
EZ1083, EZ1083-X.X Current Limit Quiescent Current Fixed Voltage Version Temperature Coefficient ICL IQ TC 5V
O.T. O.T. O.T.
7.5
9.5 12 0.005
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EZ1083
POWER MANAGEMENT Electrical Characteristics (Cont.)
Parameter Adjust Pin Current Symbol IADJ VIN IO TJ(5) 25°C O.T. Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Version RMS Output Noise(3) Ripple Rejection Ratio(4) IADJ TS IO VN RA 5V 7.5A 5V 5V 0.5A O.T. O.T. O.T. 25°C O.T. 60 0.2 0.5 5 0.003 72 10 Min Typ 55 90 5 µA % mA %VO dB Max Units µA
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.
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EZ1083
POWER MANAGEMENT Pin Configuration Ordering Information
Device EZ1083CT-X.X(1) Package(3) TO-220 VOUT Volts(2) Fixed and Adjustable
Notes: (1) Where X.X denotes voltage options. Available voltages are: 2.5V and 3.3V. Leave blank for adjustable version. Contact factory for additional voltage options. (2) Adjustable versions: output adjusts from 1.3V to 5.7V. (3) Only available in tube packaging. A tube contains 50 devices.
Block Diagram
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EZ1083
POWER MANAGEMENT Outline Drawing - TO-220
Contact Information
Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804
2003 Semtech Corp.
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