0.8 & 1.0 Amp Positive
Voltage Regulators
POWER MANAGEMENT
Description
The EZ1117 series of high performance positive voltage
regulators are designed for use in applications requiring
low dropout performance at up to 0.8A.
Additionally, the EZ1117 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.
The EZ1117 series of three terminal regulators offer fixed
and adjustable voltage options available in the space
saving SOT-223 and TO-263 packages.
EZ1117
Features
Low dropout performance: 1.2V max.
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
Line regulation 0.2% max.
Load regulation 0.4% max.
SOT-223 and TO-263 packages
Applications
Low voltage microcontrollers
Switching power supply post-regulation
Typical Application Circuit
Fixed Voltage Regulator
U1
VIN > 4.75V
3
IN
EZ1117-2.5
2
TAB
OUT
VOUT = 2.5V
+
C1
10uF Tant.
GND
1
+
C2
10uF Tant. Min.
Adjustable Voltage Regulator
VIN > 4.75V
3
U1
IN
TAB
EZ1117
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
Revision: November 5, 2004
1
R2
232 Ohm, 1%
R2
V
OUT
=
V
REF
•
1
+
+
I
ADJ
•
R 2
R1
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EZ1117
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. Exposure to Absolute Maximum rated conditions for extended periods of time may affect device
reliability.
Parameter
Input Supply Voltage
Power Dissipation
Thermal Resistance Junction to Case
SOT-223
TO-263
Thermal Resistance Junction to Ambient
SOT-223
TO-263
Operating Junction Temperature Range
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
15
3
156
60
-40 to 125
-65 to 150
300
2
Units
V
W
°C/W
θ
J A
T
J
T
STG
T
LEAD
ESD
°C/W
°C
°C
°C
kV
Electrical Characteristics
(6)
Unless otherwise specified: Adj. Option: V
IN
= 2.65V to 7.0V and I
O
= 10mA to I
RATED
. Fixed Options: I
O
= 0mA to I
RATED
, V
IN
(2.5V) = 3.9V to 7.0V.
Parameter
Output Voltage
(1)
Symbol
V
O
V
IN
5V
I
O
OmA
T
J(5)
25°C
O.T.
Min
-1.5%
-2%
1.231
1.225
Typ
V
O
Max
+1.5%
+2%
Units
V
(Fixed Voltage Versions)
Reference Voltage
(1)
V
REF
5V
10mA
25°C
O.T.
1.250
1.269
1.275
V
(Adj Voltage Version)
Line Regulation
(1)
Load Regulation
(1)
Dropout Voltage
(1)(2)
REG
(LINE)
REG
(LOAD)
V
D
5V
100mA
500mA
800mA
10mA
O.T.
O.T.
O.T.
0.035
0.2
1.00
1.05
1.10
0.8
10
0.005
0.2
0.4
1.10
1.15
1.20
%
%
V
Current Limit
Quiescent Current
Fixed Voltage Version
Temperature Coefficient
I
CL
I
Q
T
C
5V
O.T.
O.T.
O.T.
A
13
mA
%/°C
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EZ1117
POWER MANAGEMENT
Electrical Characteristics (Cont.)
(6)
Unless otherwise specified: Adj. Option: V
IN
= 2.65V to 7.0V and I
O
= 10mA to I
RATED
. Fixed Options: I
O
= 0mA to I
RATED
, V
IN
(2.5V) = 3.9V to 7.0V.
Parameter
Adjust Pin Current
Adjust Pin Current
Change
Temperature Stability
Minimum Load Current
Adj Voltage Version
RMS Output Noise
(3)
Ripple Rejection Ratio
(4)
Symbol
I
ADJ
∆I
ADJ
T
S
I
O
V
N
R
A
V
IN
I
O
T
J(5)
O.T.
O.T.
O.T.
Min
Typ
55
0.2
0.5
5
0.003
Max
90
5
Units
µA
µA
%
5V
O.T.
25°C
10
mA
%V
O
dB
5V
I
RATED
O.T.
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 10kHz.
(4) 120Hz input ripple (C
ADJ
for ADJ = 25µF).
(5) O.T. = over specified operating junction temperature range.
(6) I
RATED
= 800mA.
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EZ1117
POWER MANAGEMENT
Pin Configuration
Ordering Information
Device
EZ1117CST-X.X.TR
(2)
EZ1117CST-XX.TRT
(2)(4)
P ackag e
SOT-223
(3)
EZ1117CM-X.X.TR
(1)
SOT-223
TO-263
EZ1117CM-XX.TRT
(1)(4)
TO-263
(3)
Block Diagram
Notes:
(1) Where X.X (XX) denotes voltage options. Available
voltage is: 2.5V (25). Leave blank for adjustable version
(1.3 to 5.7V). Contact factory for additional voltage op-
tions.
(2) Where X.X (XX) denotes voltage options. Available
voltages are: 2.5V (25), 2.85(285), and 3.3V(33). Leave
blank for adjustable version (1.3 to 5.7V). Contact fac-
tory for additional voltage options.
(3) Only available in tape and reel packaging. A reel
contains 2500 (SOT-223) or 800 (TO-263) devices.
(4) Lead free product. This product is fully WEEE and
RoHS compliant.
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