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EZ1117CST-25.TRT [SEMTECH]

Fixed Positive LDO Regulator, 2.5V, 1.2V Dropout, BIPolar, PDSO4, ROHS COMPLIANT, SOT-223, 4 PIN;
EZ1117CST-25.TRT
型号： EZ1117CST-25.TRT
厂家： SEMTECH CORPORATION    SEMTECH CORPORATION
描述：

Fixed Positive LDO Regulator, 2.5V, 1.2V Dropout, BIPolar, PDSO4, ROHS COMPLIANT, SOT-223, 4 PIN

光电二极管 输出元件 调节器
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EZ1117  
0.8 & 1.0 Amp Positive  
Voltage Regulators  
POWER MANAGEMENT  
Description  
Features  
The EZ1117 series of high performance positive voltage  
regulators are designed for use in applications requiring  
low dropout performance at up to 0.8A.  
‹ 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.  
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.  
‹ Load regulation 0.4% max.  
‹ SOT-223 and TO-263 packages  
The EZ1117 series of three terminal regulators offer fixed  
and adjustable voltage options available in the space  
saving SOT-223 and TO-263 packages.  
Applications  
‹ Low voltage microcontrollers  
‹ Switching power supply post-regulation  
Typical Application Circuit  
Fixed Voltage Regulator  
U1  
EZ1117-2.5  
3
2
TAB  
VIN > 4.75V  
VOUT = 2.5V  
IN  
OUT  
+
+
C1  
10uF Tant.  
C2  
GND  
1
10uF Tant. Min.  
Adjustable Voltage Regulator  
U1  
EZ1117  
OUT  
3
2
TAB  
VIN > 4.75V  
VOUT = 3.45V  
IN  
+
+
C1  
R1  
C2  
10uF Tant.  
ADJ  
1
133 Ohm, 1%  
10uF Tant. Min  
R2  
232 Ohm, 1%  
R2  
R1  
VOUT = VREF • 1+  
+ IADJ • R2  
Notes:  
(1) C1 needed if device is far from filter capacitors  
(2) C2 minimum value required for stability  
Revision: November 5, 2004  
1
www.semtech.com  
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  
Symbol  
Maximum  
Units  
Input Supply Voltage  
Power Dissipation  
VIN  
PD  
7
V
Internally Limited  
W
Thermal Resistance Junction to Case  
SOT-223  
TO-263  
15  
3
°C/W  
°C/W  
θJC  
Thermal Resistance Junction to Ambient  
SOT-223  
TO-263  
156  
60  
θJA  
Operating Junction Temperature Range  
Storage Temperature Range  
TJ  
-40 to 125  
-65 to 150  
300  
°C  
°C  
°C  
kV  
TSTG  
TLEAD  
ESD  
Lead Temperature (Soldering) 10 Sec.  
ESD Rating (Human Body Model)  
2
Electrical Characteristics(6)  
Unless otherwise specified: Adj. Option: VIN = 2.65V to 7.0V and IO = 10mA to IRATED. Fixed Options: IO = 0mA to IRATED, VIN (2.5V) = 3.9V to 7.0V.  
(5)  
Parameter  
Symbol  
VIN  
IO  
TJ  
Min  
Typ  
Max  
Units  
Output Voltage (1)  
VO  
5V  
OmA  
25°C  
O.T.  
25°C  
O.T.  
O.T.  
O.T.  
O.T.  
-1.5%  
-2%  
VO  
+1.5%  
+2%  
1.269  
1.275  
0.2  
V
(Fixed Voltage Versions)  
Reference Voltage (1)  
(Adj Voltage Version)  
Line Regulation (1)  
Load Regulation (1)  
Dropout Voltage(1)(2)  
VREF  
5V  
5V  
10mA  
10mA  
1.231  
1.225  
1.250  
V
REG(LINE)  
REG(LOAD)  
VD  
0.035  
0.2  
%
%
V
0.4  
100mA  
500mA  
800mA  
1.00  
1.05  
1.10  
1.10  
1.15  
1.20  
Current Limit  
ICL  
IQ  
O.T.  
O.T.  
0.8  
A
Quiescent Current  
5V  
10  
13  
mA  
Fixed Voltage Version  
Temperature Coefficient  
TC  
O.T.  
0.005  
%/°C  
2004 Semtech Corp.  
2
www.semtech.com  
EZ1117  
POWER MANAGEMENT  
Electrical Characteristics (Cont.)(6)  
Unless otherwise specified: Adj. Option: VIN = 2.65V to 7.0V and IO = 10mA to IRATED. Fixed Options: IO = 0mA to IRATED, VIN (2.5V) = 3.9V to 7.0V.  
(5)  
Parameter  
Symbol  
IADJ  
VIN  
IO  
TJ  
Min  
Typ  
Max  
Units  
Adjust Pin Current  
O.T.  
O.T.  
55  
90  
5
µA  
µA  
Adjust Pin Current  
Change  
0.2  
∆IADJ  
Temperature Stability  
TS  
IO  
O.T.  
O.T.  
0.5  
5
%
Minimum Load Current  
Adj Voltage Version  
RMS Output Noise(3)  
5V  
5V  
10  
mA  
VN  
RA  
25°C  
O.T.  
0.003  
72  
%VO  
dB  
Ripple Rejection Ratio(4)  
IRATED  
60  
NOTES:  
(1) Low duty cycle pulse testing with Kelvin connections required.  
(2) ∆VOUT, ∆VREF = 1%.  
(3) Bandwidth of 10 Hz to 10kHz.  
(4) 120Hz input ripple (CADJ for ADJ = 25µF).  
(5) O.T. = over specified operating junction temperature range.  
(6) IRATED = 800mA.  
2004 Semtech Corp.  
3
www.semtech.com  
EZ1117  
POWER MANAGEMENT  
Pin Configuration  
Ordering Information  
Device  
Package  
EZ1117CST-X.X.TR(2)  
EZ1117CST-XX.TRT(2)(4)  
EZ1117CM-X.X.TR(1)  
SOT-223(3)  
TO-263(3)  
EZ1117CM-XX.TRT(1)(4)  
SOT-223  
TO-263  
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.  
Block Diagram  
2004 Semtech Corp.  
4
www.semtech.com  
EZ1117  
POWER MANAGEMENT  
Outline Drawing - TO-263  
Land Pattern - TO-263  
2004 Semtech Corp.  
5
www.semtech.com  
EZ1117  
POWER MANAGEMENT  
Outline Drawing - SOT-223  
Land Pattern - SOT-223  
Contact Information for Semtech International AG  
Taiwan Branch  
Korea Branch  
Shanghai Office  
Tel: 886-2-2748-3380  
Fax: 886-2-2748-3390  
Semtech Switzerland GmbH  
Japan Branch  
Tel: 81-3-6408-0950  
Fax: 81-3-6408-0951  
Tel: 82-2-527-4377  
Fax: 82-2-527-4376  
Semtech Limited (U.K.)  
Semtech France SARL  
Semtech Germany GmbH  
Tel: 44-1794-527-600  
Fax: 44-1794-527-601  
Tel: 86-21-6391-0830  
Fax: 86-21-6391-0831  
Tel: 33-(0)169-28-22-00  
Fax: 33-(0)169-28-12-98  
Semtech International AG is a wholly-owned subsidiary of  
Semtech Corporation, which has its headquarters in the U.S.A.  
Tel: 49-(0)8161-140-123  
Fax: 49-(0)8161-140-124  
2004 Semtech Corp.  
6
www.semtech.com  

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