Semtech EZ1086BCM 1.5 amp positive voltage regulator Datasheet

1.5 AMP POSITIVE
VOLTAGE REGULATOR
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
October 3, 2000
DESCRIPTION
The EZ1086 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1086 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.
A variety of options are available for maximum
flexibility: the EZ1086C has both fixed and adjustable
voltage options and is designed for use in commercial
applications; the EZ1086BC is adjustable only for cost
sensitive commercial applications; the EZ1086I is
adjustable only for industrial applications. All devices
are available in the popular TO-220 and TO-263
packages.
APPLICATIONS
•= Post regulators
•= Battery chargers
U1
3
+
C1
10uF
FEATURES
•= Low dropout voltage: 1.3V max. for EZ1086C,
1.4V max. for EZ1086I, 1.45V max. for EZ1086BC
•= Full current rating over line and temperature
•= Fast transient response
•= ±2% total output regulation over line, load and
•=
•=
•=
•=
•=
•=
temperature (±2.4% for EZ1086BC)
Adjust pin current max 90µA over temperature
Fixed/adjustable output voltage (EZ1086C)
Line regulation typically 0.015%
Load regulation typically 0.05%
Industrial temperature range (EZ1086I)
TO-220 and TO-263 packages
ORDERING INFORMATION
(1)(2)
DEVICE
EZ1086BCM.TR
EZ1086CM-X.X.TR
EZ1086IM.TR
TO-263(3)
EZ1086BCT
EZ1086CT-X.X
EZ1086IT
TO-220(4)
EZ1086-3.3
IN
OUT/TAB
GND
PACKAGE
Notes:
(1) Where X.X denotes voltage options (EZ1086C
only). Available voltages are: 2.5V, 3.3V and 3.45V.
Leave blank for adjustable version (1.3 to 5.7V).
Contact factory for additional voltage options.
(2) Where C and I denote Commercial (0°C to 70°C)
and Industrial (-40°C to 85°C) ambient temperature
ranges.
(3) Only available in tape and reel packaging. A reel
contains 800 devices.
(4) Only available in tube packaging. A tube contains
50 devices.
TYPICAL APPLICATIONS
VIN > 4.75V
EZ1086BC, EZ1086C
& EZ1086I
U1
2
VOUT = 3.3V
+
3
VIN > 4.75V
C2
10uF Tant.
1
+
C1
10uF
EZ1086
IN
OUT/TAB
ADJ
2
VOUT = 3.45V
R1
133 Ohm
+
C2
10uF Tant.
1
R2
232 Ohm
Fixed Voltage Regulator
Adjustable Voltage Regulator
Notes:
(1) C1 required if device is far from filter capacitors
(2) C2 required for stability
1
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1.5 AMP POSITIVE
VOLTAGE REGULATOR
EZ1086BC, EZ1086C
& EZ1086I
October 3, 2000
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Maximum
Units
Input Supply Voltage
VIN
7
V
Power Dissipation
PD
Internally Limited
W
Thermal Resistance Junction to Case
TO-220
TO-263
θJC
3
3
°C/W
Thermal Resistance Junction to Ambient
TO-220
TO-263
θJA
50
60
°C/W
Operating Ambient Temperature Range
EZ1086BC, EZ1086C
EZ1086I
TA
0 to 70
-40 to 85
°C
Operating Junction Temperature Range
EZ1086BC, EZ1086C
EZ1086I
TJ
0 to 125
-40 to 125
°C
Storage Temperature Range
TSTG
-65 to 150
°C
Lead Temperature (Soldering) 10 Sec
TLEAD
300
°C
ESD Rating (Human body model)
ESD
2
kV
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: Adj VIN = 2.75V to 7.0V and Adj IO = 10mA to 1.5A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 1.5A.
Values in bold apply over full operating ambient temperature range.
Parameter
(1)
Output Voltage
Symbol
VIN
IO
Min
Typ
Max
Units
VO
5V
0mA
0.99lVOl
VO
1.01lVOl
V
EZ1086C-X.X
0.98lVOl
Reference Voltage
(1)
VREF
5V
10mA
EZ1086C, EZ1086I
Reference Voltage (1)
1.238
1.250
1.225
VREF
5V
10mA
EZ1086BC
1.233
Line Regulation
(1)
Load Regulation
Dropout Voltage
EZ1086C, EZ1086C-X.X(2)
REG(LINE)
REG(LOAD)
10mA
5V
VD
1.5A
EZ1086BC(2)
(2)
Current Limit
ICL
Quiescent Current Fixed Voltage
Version
IQ
Temperature Coefficient
TC
1.5
5V
1.262
V
1.275
1.250
1.220
(1)
EZ1086I
1.02lVOl
1.267
V
1.280
0.045
0.2
%
0.15
0.4
%
1.20
1.30
V
1.20
1.45
1.20
1.40
2.0
10
0.005
A
14
mA
%/°C
2
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1.5 AMP POSITIVE
VOLTAGE REGULATOR
EZ1086BC, EZ1086C
& EZ1086I
October 3, 2000
ELECTRICAL CHARACTERISTICS (Cont.)
Unless otherwise specified: Adj VIN = 2.75V to 7.0V and Adj IO = 10mA to 1.5A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 1.5A.
Values in bold apply over full operating ambient temperature range.
Parameter
Symbol
Adjust Pin Current
Adjust Pin Current Change
VIN
Typ
Max
Units
IADJ
55
90
µA
∆IADJ
0.2
5
µA
Temperature Stability
TS
5V
Minimum Load Current Adj. Voltage
Versions
IO
5V
RMS Output Noise(3)
VN
(4)
Ripple Rejection Ratio
RA
5V
IO
Min
0.5A
5
1.5A
%
0.5
60
10
mA
0.003
%VO
72
dB
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.
3
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1.5 AMP POSITIVE
VOLTAGE REGULATOR
EZ1086BC, EZ1086C
& EZ1086I
October 3, 2000
BLOCK DIAGRAM
PIN CONFIGURATIONS
PIN DESCRIPTIONS
Pin Pin Name
1
Pin Function
ADJUST / This pin is the negative side of the reference voltage for adjustable devices. Transient response
can be improved by adding a small bypass capacitor from the adjust pin to ground.
GROUND This pin is the bottom end of the internal resistor feedback chain for fixed output voltage parts,
and should be connected to ground.
2
OUTPUT
3
INPUT
This is the power output of the device, and is electrically connected to the TAB.
This is the input supply pin for both the control circuitry and the pass device.
4
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1.5 AMP POSITIVE
VOLTAGE REGULATOR
EZ1086BC, EZ1086C
& EZ1086I
October 3, 2000
DEVICE OUTLINE - TO-220
DEVICE OUTLINE - TO-263
ECN00-1352
5
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
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