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Электронный компонент: EZ1086CT-2.5

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1
www.semtech.com
EZ1086C & EZ1086I
1.5 Amp Positive Voltage Regulator
POWER MANAGEMENT
Revision 2, April 2003
The EZ1086 series of high performance positive voltage
regulators are designed for use in applications requiring
low dropout performance at up to 1.5A. 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 applica-
tions; the EZ1086I is adjustable only for industrial appli-
cations.
All devices are available in the popular TO-220 and
TO-263 packages.
Low dropout voltage: 1.3V max. for EZ1086C,
1.4V max. for EZ1086I
Full current rating over line and temperature
Fast transient response
2% total output regulation over line, load and
temperature
Adjust pin current max 90A 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
Post regulators
Battery chargers
Description
Features
Applications
Fixed Voltage Regulator
Adjustable Voltage Regulator
Typical Application Circuit
VIN > 4.75V
VOUT = 3.45V
VOUT = 3.3V
VIN > 4.75V
U1
EZ1086
1
2
3
ADJ
OUT
IN
TAB
+
C2
10uF Tant. Min.
R1
133 Ohm, 1%
+
C1
10uF Tant.
U1
EZ1086C-3.3
1
2
3
GND
OUT
IN
TAB
R2
232 Ohm, 1%
+
C1
10uF Tant.
+
C2
10uF Tant. Min
Notes:
(1) C1 needed if device is far from filter capacitors
(2) C2 minimum value required for stability
2
R
I
1
R
2
R
1
V
V
ADJ
REF
OUT
+
+
=
2
2003 Semtech Corp.
www.semtech.com
EZ1086C & EZ1086I
POWER MANAGEMENT
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Unless otherwise specified: Adj. V
IN
= 2.75V to 7.0V and Adj. I
O
= 10mA to 1.5A; Fixed V
IN
= 4.75 to 7.0V and Fixed I
O
= 0 mA to 1.5A.
Values in bold apply over full operating ambient temperature range.
Absolute Maximum Ratings
Electrical Characteristics
3
2003 Semtech Corp.
www.semtech.com
EZ1086C & EZ1086I
POWER MANAGEMENT
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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 = 25F).
Electrical Characteristics (Cont)
Unless otherwise specified: Adj. V
IN
= 2.75V to 7.0V and Adj. I
O
= 10mA to 1.5A; Fixed V
IN
= 4.75 to 7.0V and Fixed I
O
= 0 mA to 1.5A.
Values in bold apply over full operating ambient temperature range.
4
2003 Semtech Corp.
www.semtech.com
EZ1086C & EZ1086I
POWER MANAGEMENT
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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 (0C to 70C)
and Industrial (-40C to 85C) 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.
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Pin Configurations
Ordering Information
Pin Descriptions
Block Diagram
5
2003 Semtech Corp.
www.semtech.com
EZ1086C & EZ1086I
POWER MANAGEMENT
Outline Drawing - TO-220
Outline Drawing - T0-263