Semtech EZ1587CM-X.X.TR 3 amp positive voltage regulator Datasheet

EZ1587C & EZ1587I
3 Amp Positive
Voltage Regulator
POWER MANAGEMENT
Description
Features
The EZ1587 series of high performance positive voltage
regulators are designed for use in applications requiring
low dropout performance at up to 3A. Additionally, the
EZ1587 series provides excellent regulation over
variations in line, load and temperature.
‹ Low dropout voltage: 1.3V max. for EZ1587C and
1.4V max. for EZ1587I
‹ Full current rating over line and temperature
‹ Fast transient response
‹ ±2% total output regulation over line, load and
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 EZ1587C is intended for commercial applications and ‹
has both fixed and adjustable voltage options; the
EZ1587I is intended for industrial applications and is
adjustable only.
temperature
Adjust pin current max 90µA over temperature
Fixed/adjustable output voltage (EZ1587C)
Line regulation typically 0.015%
Load regulation typically 0.05%
Industrial temperature range (EZ1587I)
TO-220 and TO-263 packages. Available in RoHS
compliant package
Applications
‹
All devices are available in the popular TO-220 and ‹
‹
TO-263 packages.
‹
‹
‹
Typical Application Circuit
‹
Printer and plotter supplies
Instrumentation
Medical equipment
Microcontroller systems
Telecommunication systems
Motherboards
Switching supply post regulation
Fixed Voltage Regulator
U1
3
VIN > 4.75V
+
IN
C1
10uF Tant.
EZ1587C-3.3
2
TAB
OUT
VOUT = 3.3V
+
GND
C2
10uF Tant. Min.
1
Adjustable Voltage Regulator
U1
3
VIN > 4.75V
+
C1
10uF Tant.
IN
EZ1587
TAB
OUT
2
VOUT = 3.45V
R1
133 Ohm, 1%
ADJ
+
C2
10uF Tant. Min
1
R2
232 Ohm, 1%
Notes:
(1) C1 needed if device is far from filter capacitors
(2) C2 minimum value required for stability
Revision: April 26, 2006
1
R2 

VOUT = VREF •  1 +
 + I ADJ • R 2
R1 

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EZ1587C & EZ1587I
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not implied.
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
θJ C
3
3
°C/W
Thermal Resistance Junction to Ambient
TO-220
TO-263
θJ A
50
60
°C/W
Operating Ambient Temperature Range
EZ1587C
EZ1587I
TA
0 to 70
-40 to 85
°C
Operating Junction Temperature Range
EZ1587C
EZ1587I
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 3A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 3A.
Values in bold apply over full operating ambient temperature range.
Parameter
Output Voltage
(1)
Symbol
VIN
IO
Min
Typ
Max
Units
VO
5V
0mA
0.985lVOl
VO
1.015lVOl
V
EZ1587C-X.X
Reference Voltage
0.98lVOl
(1)
VREF
5V
10mA
EZ1587C, EZ1587I
REG(LINE)
Load Regulation (1)
REG(LOAD)
10mA
5V
VD
3.0A
EZ1587I
Current Limit
 2006 Semtech Corp.
1.250
1.225
Line Regulation (1)
Dropout Voltage(1)(2)
EZ1587C, EZ1587C-X.X
1.231
1.02lVOl
ICL
3.1
2
1.269
V
1.275
0.015
0.2
%
0.05
0.4
%
1.20
1.35
V
1.20
1.40
4.5
A
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EZ1587C & EZ1587I
POWER MANAGEMENT
Electrical Characteristics (Cont)
Unless otherwise specified: Adj. VIN = 2.75V to 7.0V and Adj. IO = 10mA to 3A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 3A.
Values in bold apply over full operating ambient temperature range.
Parameter
Symbol
VIN
Quiescent Current
Fixed Voltage Version
IQ
5V
Temperature Coefficient
TC
0.005
Adjust Pin Current
IADJ
55
90
µA
∆IADJ
0.2
5
µA
Adjust Pin Current Change
Temperature Stability
TS
5V
Minimum Load Current
Adj Voltage Versions
IO
5V
RMS Output Noise(3)
VN
Ripple Rejection Ratio(4)
RA
5V
IO
Min
0.5A
Typ
Max
Units
10
13
mA
0.5
5
3A
%/°C
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).
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EZ1587C & EZ1587I
POWER MANAGEMENT
Pin Configurations
Ordering Information
Device(1)(2)
EZ1587CM-X.X.TR
EZ1587IM.TR
EZ1587CM-X.X.TRT(5)
EZ1587IM.TRT(5)
EZ1587CT-X.X
EZ1587IT
EZ1587CT-X.XT(5)
EZ1587ITT(5)
P ackag e
TO-263(3)
TO-220(4)
Notes:
(1) Where X.X denotes voltage options (EZ1587C only).
Available voltages are: 1.5V, 1.8V, 2.5V,and 3.3V. 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
Pin Name
Pin Function
1
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
This is the power output of the device and is electrically connected to the TAB.
3
INPUT
This is the input supply pin for both the control circuitry and the pass device.
Block Diagram
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EZ1587C & EZ1587I
POWER MANAGEMENT
Outline Drawing - TO-220
aaa
ØP
B A
DIM
A
A1
A2
b
b2
c
D
D1
D2
E
E1
E2
e
e1
H1
L
L1
N
ØP
Q
aaa
bbb
ccc
B
A
SEATING
PLANE
E
E2
A
E/2
A1
Q
H1
D2
D
D1
L1
C
L
c
3 x b2
3xb
bbb
DIMENSIONS
INCHES
MILLIMETERS
MIN NOM MAX MIN NOM MAX
4.82
.190 3.56
1.40
.055 0.51
2.92
.115 2.03
.027 .040 0.38 0.69 1.02
.057 .070 1.14 1.45 1.78
0.61
.024 0.36
.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
2.54 BSC
.100 BSC
5.08 BSC
.200 BSC
.230
.270 5.84
6.86
.500
14.73
.580 12.70
.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
.140
.020
.080
.015
.045
.014
.560
.330
.480
.380
.270
-
E1
A2
ccc
B A
B A
2x e
e1
NOTES:
1.
CONTROLLING DIMENSIONS ARE IN INCHES.
2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
Outline Drawing - T0-263
E
A
E/2
DIM
A
A1
b
b1
c
c1
D
D1
E
E1
H
e
L
L1
N
0
01
aaa
L1
0
D
H
1
2
3
e
3x b1
bxN
aaa
DIMENSIONS
INCHES
MILLIMETERS
MIN NOM MAX MIN NOM MAX
B A
A
.190 4.06
4.83
0.25
.010 0.00
.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
10.67
.420 9.65
6.22
.625 14.61
15.88
.100 BSC
2.54 BSC
2.79
.070
.110 1.78
1.68
.066
3
3
15°
15°
0°
8°
0°
8°
.010
0.25
.160
.000
.020
.045
.015
.045
.326
.270
.380
.245
.575
SEATING
PLANE
A1
B
c1
SIDE VIEW
SEE DETAIL
PLATED COPPER
HEAT SPREADER
A
D1
(L1)
c
E1
L
DETAIL
NOTES:
1.
A
01
CONTROLLING DIMENSIONS ARE IN INCHES (ANGLES IN DEGREES).
2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
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EZ1587C & EZ1587I
POWER MANAGEMENT
Land Pattern - TO-263
H
DIM
K
G
H
K
P
X
Y
Z
DIMENSIONS
INCHES
MILLIMETERS
.125
.420
.350
.100
.070
.140
.615
3.17
10.67
8.89
2.54
1.78
3.56
15.62
Z
G
Y
X
P
NOTES:
1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
Contact Information
Semtech Corporation
Power Management Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
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