SMD S MD Type
Integrate Circuit IC
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator KMU1117(LMU1117)
TO-252
Features
1.4V maximum dropout at full load current Fast transient response
+0.15 5.55-0.15 +0.15 1.50-0.15
Unit: mm
+0.1 2.30-0.1 +0.8 0.50-0.7
+0.15 6.50-0.15 +0.2 5.30-0.2
+0.2 9.70-0.2
+0.1 0.80-0.1
Good noise rejection 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 1.9V,2.5V, 3.3V, 5.0V
2.3
+0.15 4.60-0.15
+0.15 0.50-0.15
Built-in thermal shutdown
0.127 max
+0.1 0.60-0.1
+0.28 1.50-0.1
+0.25 2.65-0.1
1 Adj(GND) 2 Vout 3 Vin
Absolute Maximum Ratings Ta = 25
Parameter DC Supply Voltage Power Dissipation Thermal Resistance Junction-to-Ambient Thermal Resistance Junction-to-Case * Operating Junction Temperature Range Storage Temperature * Control Circuitry/Power Transistor Symbol Vin PD
JA JC
Rating -0.3 to 12 Internally Limited 92 10 0 to +150 -65 to +150
Unit V
/W /W
TOP TST
Block Diagram
3.80
Output current limiting
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SMD Type
KMU1117(LMU1117)
Electrical Characteristics Ta = 25
Parameter Reference Voltage KMU1117-ADJ TJ=25 KMU1117-1.5 KMU1117-1.8 Output Voltage KMU1117-1.9 KMU1117-2.5 KMU1117-3.3 KMU1117-5.0 Line Regulation Testconditons ,(VIN-OUT)=1.5V,IO=10mA , 3V , 3.3V , 3.3V , 4V , 4.8V , 6.5V VIN 12V VIN 12V VIN 12V VIN 12V VIN 12V VIN 12V
IC Integrate Circuit
Min 1.225 1.470 1.764 1.862 2.450 3.235 4.900
Typ 1.250 1.500 1.800 1.900 2.500 3.300 5.000
Max 1.275 1.530 1.836 1.938 2.550 3.365 5.100 0.2 1
Unit V V V V V V V % % mV mV mV mV mV mV V A
IOUT = 10mA, TJ = 25 IOUT = 10mA, TJ = 25 IOUT = 10mA, TJ = 25 IOUT = 10mA, TJ = 25 IOUT = 10mA, TJ = 25 IOUT = 10mA, TJ = 25
KMU1117-XXX IO=10mA,VOUT+1.5V KMU1117-ADJ VIN=3.3V,Vadj=0,0mA KMU1117-1.5 KMU1117-1.8 VIN=3V,0mA VIN=3.3V,0mA VIN=3.3V,0mA VIN=4V,0mA VIN=5V,0mA VIN=8V,0mA Io Io Io Io Io Io
VIN 12V, TJ=25 Io 1A,TJ=25 12 15 16 20 26 40 1.3 1. 1 5 0.008
1A,TJ=25 1A,TJ=25 1A,TJ=25 1A,TJ=25 1A,TJ=25 1A,TJ=25
15 18 19 25 33 50 1.4
Load Regulation
KMU1117-1.9 KMU1117-2.5 KMU1117-3.3 KMU1117-5.0
Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current Thermal Regulation Ripple Rejection Temperature Stability
KMU1117-XXX IOUT = 1A ,
VOUT=0.1%VOUT
KMU1117-XXX (VIN-VOUT) = 5V KMU1117-XXX 0 Tj 125 , 30ms pulse
10 0.04
mA %/W
TA=25
F=120Hz,COUT=25uF Tantalum, IOUT=1A KMU1117-XXX VIN=VOUT+3V IO=10mA 60 0.5 70 dB %
2
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SMD Type
KMU1117(LMU1117)
Typical Characteristics
IC Integrate Circuit
Fig.1 Dropout Voltage vs Output Current
Fig.2 Load Regulation vs Temperature
Fig.3 Percent Change in Output Voltage vs Temperature
Fig.4 Line Regulation
Fig.5 Line Transient Response
Fig.6 Load Transient Response
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