1.5 Amp Positive Voltage Regulator
POWER MANAGEMENT
Description
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.
EZ1086C & EZ1086I
Features
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 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. Available in RoHS
compliant package
Applications
Post regulators
Battery chargers
Typical Application Circuit
Fixed Voltage Regulator
U1
VIN > 4.75V
3
IN
EZ1086C-3.3
2
TAB
OUT
VOUT = 3.3V
+
C1
10uF Tant.
GND
1
+
C2
10uF Tant. Min.
Adjustable Voltage Regulator
U1
VIN > 4.75V
3
IN
TAB
EZ1086
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
R2
232 Ohm, 1%
R2
V
OUT
=
V
REF
•
1
+
+
I
ADJ
•
R 2
R1
Revision: January 25, 2006
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EZ1086C & EZ1086I
POWER MANAGEMENT
Absolute Maximum Ratings
Parameter
Input Supply Voltage
Power Dissipation
Thermal Resistance Junction to Case
TO-220
TO-263
Thermal Resistance Junction to Ambient
TO-220
TO-263
Operating Ambient Temperature Range
EZ1086C
EZ1086I
Operating Junction Temperature Range
EZ1086C
EZ1086I
Storage Temperature Range
Lead Temperature (Soldering) 10 Sec.
ESD Rating (Human Body Model)
Symbol
V
IN
P
D
θ
J C
Maximum
7
Internally Limited
3
3
50
60
0 to 70
-40 to 85
0 to 125
-40 to 125
-65 to 150
300
2
Units
V
W
°C/W
θ
J A
°C/W
T
A
°C
T
J
T
STG
T
LEAD
ESD
°C
°C
°C
kV
Electrical Characteristics
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.
Parameter
Output Voltage
EZ1086C-X.X
Reference Voltage
(1)
(1)
Symbol
V
O
V
IN
5V
I
O
0mA
Min
0.985lV
O
l
0.98lV
O
l
Typ
V
O
Max
1.015lV
O
l
1.02lV
O
l
Units
V
V
REF
5V
10mA
1.231
1.225
1.250
1.269
1.275
V
EZ1086C, EZ1086I
Reference Voltage
Line Regulation
(1)
Load Regulation
(1)
Dropout Voltage
(1)(2)
EZ1086C, EZ1086C-X.X
EZ1086I
Current Limit
I
CL
(1)
V
RE
REG
(LINE)
REG
(LOAD)
V
D
5V
10mA
10mA
1.233
1.250
0.045
0.15
1.267
0.2
0.4
1.35
1.40
V
%
%
V
5V
1.5A
1.20
1.20
1.5
2.0
A
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EZ1086C & EZ1086I
POWER MANAGEMENT
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.
Parameter
Quiescent Current
Fixed Voltage Version
Temperature Coefficient
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
Minimum Load Current
Adj Voltage Versions
RMS Output Noise
(3)
Ripple Rejection Ratio
(4)
Symbol
I
Q
T
C
I
ADJ
∆I
ADJ
T
S
I
O
V
N
R
A
V
IN
5V
I
O
Min
Typ
10
0.005
55
0.2
Max
14
Units
mA
%/°C
90
5
µA
µA
%
5V
5V
0.5A
0.5
5
0.003
10
mA
%V
O
dB
5V
1.5A
60
72
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).
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EZ1086C & EZ1086I
POWER MANAGEMENT
Pin Configurations
Ordering Information
Device
(1)(2)
EZ1086CM-X.X.TR
EZ1086IM.TR
EZ1086CM-X.XTRT
(5)
EZ1086CT-X.X
EZ1086IT
EZ1086CT-X.XT
(5)
TO-220
(4)
P ackag e
TO-263
(3)
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.
(5) This product is RoHS compliant.
Pin Descriptions
Pin
1
Pin Name
ADJUST
GROUND
2
3
OUTPUT
INPUT
Pin Function
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.
This pin is the bottom end of the internal resistor feedback chain for fixed output voltage parts, and
should be connected to ground.
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.
Block Diagram
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EZ1086C & EZ1086I
POWER MANAGEMENT
Outline Drawing - TO-220
aaa
ØP
B A
B
A
E2
E/2
Q
H1
D2
D
D1
L1
L
E
A
A1
SEATING
PLANE
DIMENSIONS
INCHES
MILLIMETERS
DIM
MIN NOM MAX MIN NOM MAX
A
A1
A2
b
b2
c
D
D1
D2
E
E1
E2
e
e1
H1
L
L1
N
ØP
Q
aaa
bbb
ccc
.140
.020
.080
.015
.045
.014
.560
.330
.480
.380
.270
-
-
-
.190 3.56
4.82
-
-
.055 0.51
1.40
-
-
.115 2.03
2.92
.027 .040 0.38 0.69 1.02
.057 .070 1.14 1.45 1.78
-
-
.024 0.36
0.61
-
-
.650 14.22
16.51
-
-
.355 8.38
9.02
-
-
.507 12.19
12.88
-
-
.420 9.65
10.66
-
-
.350 6.86
8.90
-
-
-
.030
0.76
.100 BSC
2.54 BSC
5.08 BSC
.200 BSC
-
-
.230
.270 5.84
6.86
-
-
.500
.580 12.70
14.73
-
-
-
-
.250
6.35
3
3
-
-
.139
.156 3.53
3.96
-
-
.100
.120 2.54
3.05
.014
0.36
.015
0.38
.010
0.25
C
c
3 x b2
3xb
bbb
2x e
e1
NOTES:
1.
CONTROLLING DIMENSIONS ARE IN INCHES.
2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
A2
B A
E1
ccc
B A
Outline Drawing - T0-263
A
E
E/2
0
L1
DIMENSIONS
INCHES
MILLIMETERS
DIM
MIN NOM MAX MIN NOM MAX
A
A1
b
b1
c
c1
D
D1
E
E1
H
e
L
L1
N
0
01
aaa
-
-
.190 4.06
4.83
-
-
.010 0.00
0.25
-
-
.039 0.51
0.99
-
-
.070 1.14
1.78
-
-
.029 0.38
0.74
-
-
.065 1.14
1.65
-
-
.380 8.28
9.65
-
-
-
-
6.86
-
-
.420 9.65
10.67
-
-
-
-
6.22
-
-
.625 14.61
15.88
.100 BSC
2.54 BSC
-
-
.070
.110 1.78
2.79
-
-
-
-
.066
1.68
3
3
-
15°
-
-
15°
-
-
-
0°
8°
0°
8°
.010
0.25
.160
.000
.020
.045
.015
.045
.326
.270
.380
.245
.575
D
H
1
2
3
e
3x b1
bxN
aaa
B A
A
SEATING
PLANE
B
A1
c1
PLATED COPPER
HEAT SPREADER
D1
(L1)
E1
L
DETAIL
NOTES:
1.
CONTROLLING DIMENSIONS ARE IN INCHES (ANGLES IN DEGREES).
2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
SIDE VIEW
SEE DETAIL
A
c
A
01
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