NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
GENERAL DESCRIPTION
The L1117 Series are positive and low dropout three-terminal voltage regulators with 1A output current capability. These devices are designed for use in low voltage applications that offers lower dropout voltage and faster transient response. These devices are fully protected against over current faults, over temperature operation, reversed input polarity, reversed lead insertion, transient voltage spike …etc. On-Chips trimming the reference voltage to 2% and features the low dropout of maximum 1.45 volts. The L1117 Series regulators offer fixed and adjustable voltage options available in the popular industry standard SOT-223, TO-220, TO-252 and TO-263 packages.
FEATURES
Fixed 2.5V, 2.85V, 3.3V, 5V or adjustable output voltage Low dropout voltage: 1.2V typical at up to 1A Low ground current Fast transient response Current & thermal limiting Line regulation: 0.5% typical Load regulation: 0.5% typical SOT-223,TO-220,TO-252,TO-263 package
APPLICATIONS
2.85V active SCSI terminators 8-15V to 5V linear regulators 5V to 2.5V or 3.3V linear regulators Low voltage micro-controllers Battery Chargers Motherboard clock supplies Post regulator for switching supplies Micro-controllers
ABSOLUTE MAXIMUM RATINGS
Maximum Supply Voltage Power Dissipation Thermal Resistance Junction to Case, θJC Thermal Resistance Junction to Ambient, θJA SOT-223 TO-252 TO-220 TO-263 15V* Internally Limited 16 °C/W Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 Seconds) 0 to 125 °C -40 to 150 °C 260 °C
158 °C/W 70 °C/W 50 °C/W 60 °C/W
* W hen considering short circuits to ground, the maximum input-to-output differential voltage shall not be allowed greater than approximate 2~3V at values of supply voltage in excess of 10V, continuous short-circuits can exceed the power dissipation ratings and cause eventual destruction.
1
JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
ELECTRICAL CHARACTERISTICS for ADJUSTABLE(Unless otherwise specified, TA = 25°C)
Parameter Symbol Test Conditions Typical 1.25V VO 1.2V 0.5% 0.5% 10mA 55µA 1.2A 0.003% of VOUT 72dB 100µA 1.1A (Min) Limits 1.23VMin 1.27VMax 0.98VO(Min) 1.02VO(Max) 1.45V 2% 2.5%
Reference Voltage (Adjustable version) VREF VIN = 5V, IOUT = 10mA Output Voltage VO VIN = 5V, IOUT = 10mA (Fixed version) Dropout Voltage VD ΔVREF = 1%, IOUT = 1A Line Regulation REG(LINE) (VOUT + 1.5V) ≤ VIN ≤ 15V, IOUT = 10mA Load Regulation REG(LOAD) (VIN -VOUT) = 2V, 10mA ≤ IOUT ≤ 1A
Minimum Load Current
IO IADJ ICL VN RA
1.5V ≤ (VIN -VOUT) ≤ 5.75V VIN - VOUT = 2V f = 120Hz, CADJ = 22µF for ADJ pin, VIN = 5V, IOUT = 1A
Adjust Pin Current Current Limit RMS Output Noise Ripple Rejection Ratio
60dB (Min)
ELECTRICAL CHARACTERISTICS for L1117-2.5(Unless otherwise specified, TA = 25 °C)
Parameter Output Voltage (Fixed version) Dropout Voltage Line Regulation Load Regulation
Minimum Load Current
Symbol VO
Test Conditions VIN = 5V, IOUT = 10mA
Typical VO 1.2V 0.5% 0.5% 10mA 55µA 1.2A 0.003% of VOUT 72dB
Limits 2.45V(Min) 2.55V(Max) 1.45V 2.0% 2.0% 100µA 1.1A (Min)
VD ΔVO = 1%, IOUT = 1A REG(LINE) (VOUT + 1.5V) ≤ VIN ≤ 15V, IOUT = 10mA REG(LOAD) (VIN -VOUT) = 2V, 10mA ≤ IOUT ≤ 1A IO IGND ICL VN RA f = 120Hz, Co=22Uf,VIN = 5V, IOUT = 1A 1.5V ≤ (VIN -VOUT) ≤ 5.75V VIN - VOUT = 2V
GND Pin Current Current Limit RMS Output Noise Ripple Rejection Ratio
60dB (Min)
2
JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
ELECTRICAL CHARACTERISTICS for L1117-2.85(Unless otherwise specified, TA = 25 °C)
Parameter Output Voltage (Fixed version) Dropout Voltage Line Regulation Load Regulation
Minimum Load Current
Symbol VO
Test Conditions VIN = 5V, IOUT = 10mA
Typical VO 1.2V 0.5% 0.5% 10mA 55µA 1.2A 0.003% of VOUT 72dB
Limits 2.793V(Min) 2.907V(Max) 1.45V 2.0% 2.0% 100µA 1.1A (Min)
VD ΔVO = 1%, IOUT = 1A REG(LINE) (VOUT + 1.5V) ≤ VIN ≤ 8V, IOUT = 10mA REG(LOAD) (VIN -VOUT) = 2V, 10mA ≤ IOUT ≤ 1A IO IGND ICL VN RA f = 120Hz, Co=22Uf,VIN = 5V, IOUT = 1A 1.5V ≤ (VIN -VOUT) ≤ 5.75V VIN - VOUT = 2V
GND Pin Current Current Limit RMS Output Noise Ripple Rejection Ratio
60dB (Min)
ELECTRICAL CHARACTERISTICS for L1117-3.3(Unless otherwise specified, TA = 25 °C)
Parameter Output Voltage (Fixed version) Dropout Voltage Line Regulation Load Regulation
Minimum Load Current
Symbol VO
Test Conditions VIN = 5V, IOUT = 10mA
Typical VO 1.2V 0.5% 0.5% 10mA 55µA 1.2A 0.003% of VOUT 72dB
Limits 3.234V(Min) 3.367V(Max) 1.45V 2.0% 2.0% 100µA 1.1A (Min)
VD ΔVO = 1%, IOUT = 1A REG(LINE) (VOUT + 1.5V) ≤ VIN ≤ 15V, IOUT = 10mA REG(LOAD) (VIN -VOUT) = 2V, 10mA ≤ IOUT ≤ 1A IO IGND ICL VN RA f = 120Hz, Co=22Uf,VIN = 5V, IOUT = 1A 1.5V ≤ (VIN -VOUT) ≤ 5.75V VIN - VOUT = 2V
GND Pin Current Current Limit RMS Output Noise Ripple Rejection Ratio
60dB (Min)
3
JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
ELECTRICAL CHARACTERISTICS for L1117-5(Unless otherwise specified, TA = 25 °C)
Parameter Output Voltage (Fixed version) Dropout Voltage Line Regulation Load Regulation
Minimum Load Current
Symbol VO
Test Conditions VIN = 8V, IOUT = 10mA
Typical VO 1.2V 0.5% 0.5% 10mA 55µA 1.2A 0.003% of VOUT 72dB
Limits 4.90V(Min) 5.10V(Max) 1.45V 1.0% 1.0% 100µA 1.1A (Min)
VD ΔVO = 1%, IOUT = 1A REG(LINE) (VOUT + 1.5V) ≤ VIN ≤ 15V, IOUT = 10mA REG(LOAD) (VIN -VOUT) = 2V, 10mA ≤ IOUT ≤ 1A IO IGND ICL VN RA f = 120Hz, Co=22uf,VIN = 8V, IOUT = 1A 1.5V ≤ (VIN -VOUT) ≤ 5.75V VIN - VOUT = 2V
GND Pin Current Current Limit RMS Output Noise Ripple Rejection Ratio
60dB (Min)
DEVICE SELECTION GUIDE
Device Voltage Version Package Marking
L1117L ADJ SOT-223 L1117L L1117D ADJ TO-252 L1117D L1117L-2.5 L1117L-2.85 L1117L-3.3 L1117D-3.3 L1117L-5 2.5 2.85 3.3 3.3 5 SOT-223 SOT-223 SOT-223 TO-252 SOT-223 L1117L-2.5 L1117L-2.85 L1117L-3.3 L1117D-3.3 L1117L-5
L1117D-5 Device 5 Voltage Version TO-252 Package L1117D-5 Marking
L1117T ADJ TO-220 L1117T
L1117T-3.3 3.3 TO-220 L1117T-3.3
L1117T-5 5 TO-220 L1117T-5
L1117S-5 5 TO-263 L1117S-5
4
JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
TYPICAL APPLICATION
V in
Vin IN ADJ Cin 10uF Iadj R2
L1117
OUT Vref
Vout
4 .3v-8V
IN
O UT
L 1117-2.85
G ND
R1
+
+
Cout 10uF
C in 1 0uF
+
C out 2 2uF
+
1 8~ 27 Line s
Vo = Vref (1+R2/R1) + Iadj x R2 1. Cin needed if device is far from from filter capacitors. 2. Cout required for stability.
- Basic Adjustable Regulator Circuit -
- Active SCSI Bus Terminators -
V in > 4.75V IN
V out=3.3V
V in > 4.00V IN
Vout=2.5V
L 1117-3.3
O UT
L 1117-2.5
O UT
C in 1 0uF
G ND
+
C out 2 2uF
+
RL
C in 1 0uF
G ND
+
C out 2 2uF
+
RL
Basic Fixed Output Regulator Circuit
Vin>6.5V
IN OUT
Basic Fixed Output Regulator Circuit
L1117-5
GND
Cin 10uF
+
Cout 22uF
+
RL
Basic Fixed Output Regulator Circuit
5 JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
PIN CONFIGURATIONS
Pin # 1 2 3
Function Adjust/Ground Output Input
Note: TAB is Output Pin
6
JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
SOT-223 MECHANICAL DATA
mm Dimension A B C D E F G Min. 0.67 6.7 2.9 2.27 4.57 1.5 6.3 Typ. 0.7 7 3 2.3 4.6 1.6 6.5 Max. 0.73 7.3 3.1 2.33 4.63 1.7 6.7 Dimension H I J K L M N 0° 0.03 Min. 3.3 0.63 mm Typ. 3.5 0.65 0.32 Max. 3.7 0.67 0.4 10° 0.1
7
JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
TO-252 (DPAK) MECHANICAL DATA
mm Dimension A B C D E F G Min. 9.35 2.2 0.48 0.89 0.45 0.03 6 Typ. Max. 10.1 2.4 0.6 1.5 0.6 0.23 6.2 Dimension H I J K L M N 6.4 5.2 0.6 0.64 4.4 Min. mm Typ. 0.8 6.6 5.4 1 0.9 4.6 Max.
8
JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
TO-220 (3-Lead) MECHANICAL DATA
mm Dimension A B C D E F G 28.5 14.6 8.4 0.72 Min. 9.78 2.61 Typ. 10.16 2.74 20 28.9 15.0 8.8 0.8 29.3 15.4 9.2 0.88 Max. 10.54 2.87 Dimension H I J K L M N Min. 2.4 1.19 4.4 1.14 2.3 0.26 mm Typ. 2.54 1.27 4.6 1.27 2.6 0.46 7° Max. 2.68 1.35 4.8 1.4 2.9 0.66
9
JUL-27-2001
NIKO-SEM
1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
L1117 Series
SOT-223, TO-252, TO-220,TO-263
TO-263 (D2PAK) MECHANICAL DATA
mm Dimension A B C D E F G 0.3 -0.102 8.5 9 Min. 14.5 4.2 1.20 2.8 0.4 0.5 0.203 9.5 Typ. 15 Max. 15.8 4.7 1.35 Dimension H I J K L M N 0.7 4.83 5.08 Min. 1.0 9.8 6.5 1.5 1.4 5.33 mm Typ. 1.5 Max. 1.8 10.3
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JUL-27-2001