1.5 AMP POSITIVE
VOLTAGE REGULATOR
October 3, 2000
EZ1086BC, EZ1086C
& EZ1086I
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
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.
FEATURES
•=
Low dropout voltage: 1.3V max. for EZ1086C,
•=
•=
•=
•=
•=
•=
•=
•=
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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
DEVICE
(1)(2)
PACKAGE
TO-263
(3)
EZ1086BCM.TR
EZ1086CM-X.X.TR
EZ1086IM.TR
EZ1086BCT
EZ1086CT-X.X
EZ1086IT
APPLICATIONS
•=
Post regulators
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Battery chargers
TO-220
(4)
TYPICAL APPLICATIONS
U1
VIN > 4.75V
3
IN
EZ1086-3.3
OUT/TAB
2
VOUT = 3.3V
VIN > 4.75V
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.
U1
3
IN
EZ1086
OUT/TAB
2
VOUT = 3.45V
+
C1
10uF
GND
1
+
C2
10uF Tant.
+
C1
10uF
ADJ
1
R1
133 Ohm
+
C2
10uF Tant.
R2
232 Ohm
Fixed Voltage Regulator
Notes:
(1) C1 required if device is far from filter capacitors
(2) C2 required for stability
Adjustable Voltage Regulator
1
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
SEMTECH [ SEMTECH CORPORATION ]
