Datasheet EZ1085CM-3.3TR, EZ1085CM-2.5TR, EZ1085CM-1.5TR, EZ1085BCT, EZ1085BCMTR Datasheet (Semtech Corporation)
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© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
3.0 AMP POSITIVE
VOLTAGE REGULATOR
EZ1085
EZ1085B
June 17, 1999
1
FEATURES
•
Low dropout performance,
1.3V max. for EZ1085,
1.45V max. for EZ1085B
•
Full current rating over line and temperature
•
Fast transient response
•
±2% total output regulation over line, load
and temperature (±2.4% for EZ1085B)
•
Adjust pin current max 90µA over temperature
•
Fixed/adjustable output voltage (EZ1085)
•
Line regulation typically 0.015%
•
Load regulation typically 0.05%
•
TO-220 and TO-263 packages
DESCRIPTION
The EZ1085 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1085 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 EZ1085 has both fixed and
adjustable voltage options, while the EZ1085B is
adjustable only for cost sensitive applications. These
devices are available in the popular TO-220 and TO263 packages.
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
APPLICATIONS
•
Post regulators
•
Processor I/O supplies
•
Battery chargers
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
TO-263
θ
JC
3
3
°C/W
Thermal Resistance
Junction to Ambient
TO-220
TO-263
θ
JA
50
60
°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
Notes:
(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.
(2) Add suffix ‘TR’ for tape and reel (TO-263).
DEVICE PACKAGE V
OUT
VOLTS
EZ1085CM-X.X
EZ1085BCM
TO-263
(2)
See Note (1)
1.30 to 5.7
EZ1085CT-X.X
EZ1085BCT
TO-220 See Note (1)
1.30 to 5.7
BLOCK DIAGRAM
PIN CONFIGURATIONS
Page 2
© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
3.0 AMP POSITIVE
VOLTAGE REGULATOR
EZ1085
EZ1085B
June 17, 1999
2
ELECTRICAL CHARACTERISTICS
Test Conditions Test Limits
Parameter Symbol V
IN
I
O
T
J
(5)
Min Typ Max Units
Output Voltage
(1)
V
O
5V 0mA 25°C 0.99lVOlVO1.01lVOlV
EZ1085-X.X O.T. 0.98lV
O
lVO1.02lVOl
Reference Voltage
(1)
V
REF
5V 10mA 25°C 1.238 1.250 1.262 V
EZ1085 O.T. 1.225 1.250 1.275
Reference Voltage
(1)
V
REF
5V 10mA 25°C 1.233 1.250 1.267 V
EZ1085B O.T. 1.220 1.250 1.280
Line Regulation
(1)
REG
(LINE)
10mA 25°C 0.015 0.2 %
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
EZ1085, EZ1085-X.X O.T. 1.10 1.30
EZ1085B 1.20 1.45
Current Limit I
CL
O.T. 3.0 4.5 A
Quiescent Current
Fixed Voltage Version
I
Q
5V O.T. 12 14 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 3.0A O.T. 60 72 dB
Unless otherwise specified, Adj VIN = 2.75V to 7.0V and Adj IO = 10mA to 3.0A;
Fixed V
IN
= 4.75 to 7.0V and Fixed IO = 0 mA to 3.0A
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.
Page 3
© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
3.0 AMP POSITIVE
VOLTAGE REGULATOR
EZ1085
EZ1085B
June 17, 1999
3
TYPICAL APPLICATIONS
FIXED VOLTAGE REGULATOR
(1)(2)
ADJUSTABLE VOLTAGE REGULATOR
(1)(2)
EZ1085/EZ1085B
Page 4
© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
3.0 AMP POSITIVE
VOLTAGE REGULATOR
EZ1085
EZ1085B
June 17, 1999
4
DEVICE OUTLINE - TO-220
DEVICE OUTLINE - TO-263
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