Positive Voltage Regulators dropout performance: 1.2V max. EZ1117
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EZ1117 series high performance positive voltage regulators designed applications requiring dropout performance 0.8A EZ1117A). Additionally, EZ1117 series provides excellent regulation over variations line, load temperature. Outstanding features include dropout performance rated current, fast transient response, internal current limiting thermal shutdown protection output device. EZ1117 series three terminal regulators offer fixed adjustable voltage options available space saving SOT-223 TO-263 packages.
Positive Voltage Regulators
dropout performance: 1.2V max. EZ1117, Full current rating over line temperature Fast transient response total output regulation over line, load
1.3V max. EZ1117A
EZ1117 EZ1117A
temperature Adjust current 90µA over temperature Fixed/adjustable output voltage Line regulation 0.2% max. Load regulation 0.4% max. SOT-223 TO-263 packages
Applications
voltage microcontrollers Switching power supply post-regulation
Typical Application Circuit
Fixed Voltage Regulator
4.75V EZ1117-3.3 VOUT 3.3V
10uF Tant.
10uF Tant. Min.
Adjustable Voltage Regulator
4.75V EZ1117 VOUT 3.45V
10uF Tant.
Ohm,
10uF Tant.
Notes: needed device from filter capacitors minimum value required stability
Revision December 2000
Ohm,
VOUT VREF
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EZ1117 EZ1117A
POWER MANAGEMENT Absolute Maximum Ratings
Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction Case SOT-223 TO-263 Thermal Resistance Junction Ambient SOT-223 TO-263 Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) Sec. Rating (Human Body Model) Symbol Maximum Internally Limited Units °C/W
TSTG TLEAD
°C/W
Electrical Characteristics(6)
Unless otherwise specified: Adj. Option: 2.65V 7.0V 10mA IRATED. Fixed Options: IRATED, (2.5V) 3.9V 7.0V, (2.85V) 4.25V 7.0V, (3.3V) 4.75V 7.0V.
Parameter Output Voltage
Symbol
TJ(5) 25°C O.T.
1.238 1.225
Units
(Fixed Voltage Versions) Reference Voltage
VREF
10mA
25°C O.T.
1.250
1.262 1.275
(Adj Voltage Version) Line Regulation Load Regulation Dropout Voltage(1)(2) REG(LINE) REG(LOAD) 100mA 500mA 800mA 1000mA 10mA
O.T. O.T. O.T.
0.035 1.00 1.05 1.10 1.10 0.005
1.10 1.15 1.20 1.30
EZ1117A Current Limit EZ1117 EZ1117A Quiescent Current Fixed Voltage Version Temperature Coefficient
O.T. O.T. O.T.
%/°C
2000 Semtech Corp.
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EZ1117 EZ1117A
POWER MANAGEMENT Electrical Characteristics (Cont.)(6)
Unless otherwise specified: Adj. Option: 2.65V 7.0V 10mA IRATED. Fixed Options: IRATED, (2.5V) 3.9V 7.0V, (2.85V) 4.25V 7.0V, (3.3V) 4.75V 7.0V.
Parameter Adjust Current Adjust Current Change Temperature Stability Minimum Load Current Voltage Version Output Noise(3) Ripple Rejection Ratio(4)
Symbol IADJ IADJ
TJ(5) O.T. O.T. O.T.
0.003
Units
O.T. 25°C
IRATED
O.T.
NOTES: duty cycle pulse testing with Kelvin connections required. VOUT, VREF Bandwidth 10kHz. 120Hz input ripple (CADJ 25µF). O.T. over specified operating junction temperature range. IRATED EZ1117A 800mA EZ1117.
2000 Semtech Corp.
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EZ1117 EZ1117A
POWER MANAGEMENT Configuration Ordering Information
Device
(1)(2)
ackag SOT-223 TO-263
EZ1117CST-X.X.TR EZ1117ACST-X.X.TR EZ1117CM-X.X.TR EZ1117ACM-X.X.TR
SOT-223
TO-263
Notes: Where denotes voltage options. Available voltages are: 2.5V, 2.85V 3.3V. Leave blank adjustable version (1.3 5.7V). Contact factory additional voltage options. Only available tape reel packaging. reel contains 2500 (SOT-223) (TO-263) devices.
Block Diagram
2000 Semtech Corp.
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EZ1117 EZ1117A
POWER MANAGEMENT Outline Drawing TO-263
Land Pattern TO-263
2000 Semtech Corp.
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EZ1117 EZ1117A
POWER MANAGEMENT Outline Drawing SOT-223
Land Pattern SOT-223
Contact Information
Semtech Corporation Power Management Products Division Mitchell Rd., Newbury Park, 91320 Phone: (805)498-2111 (805)498-3804
2000 Semtech Corp.
www.semtech.com
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