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1A Quiescent Current, 150mA LDO Regulator
DESCRIPTION
The EUP7180 is CMOS-based voltage regulator IC with extremely low supply current which is typically 1A. Dropout voltage is also very low. The EUP7180 has output short circuit and over current protection features. The EUP7180 is available in 1.5V, 2.3V, 2.5V and 3.0V versions.
EUP7180
FEATURE
Low Ground Current at 1A Low Dropout Voltage of 230mV at Output Current 100mA Guaranteed 150mA Output Current Stable with low ESR Ceramic Capacitors Current-limiting SOT23 3-pin and SOT89 Package RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
Stable Voltage reference. Power source for electrical appliances such as cameras, VCRs and camcorders. Power source for battery-powered equipment
Block Diagram
Figure 1.
DS7180 Ver1.2
Oct. 2007
1
EUP7180
Typical Application Circuit
Figure2. Fixed-Voltage LDO Regulator
Figure 2. Pin Configurations
Package Type Pin Configurations Package Type Pin Configurations
SOT23-3
SOT89-3
Pin Description
PIN SOT23-3 SOT89-3 DESCRIPTION
VIN GND VOUT
3 1 2
2 1 3
Input voltage of the LDO Common Ground Output voltage of the LDO
DS7180 Ver1.2
Oct. 2007
2
EUP7180
Ordering Information
Order Number
EUP7180-15VIR1 EUP7180-23VIR1 EUP7180-25VIR1 EUP7180-30VIR1 EUP7180-23CIR1 EUP7180-25CIR1 EUP7180-30CIR1
Package Type
SOT23-3 SOT23-3 SOT23-3 SOT23-3 SOT89-3 SOT89-3 SOT89-3
Marking
KC xxxx KS xxxx KB xxxx KG xxxx xxxxx P7180S xxxxx P7180B xxxxx P7180G
Operating Junction Temperature range
-40C to 150C -40C to 150C -40C to 150C -40C to 150C -40C to 150C -40C to 150C -40C to 150C
EUP7180 -1/4 1/4
1/4
1/4
1/4
1/4 Lead Free Code 1: Lead Free 0: Lead Packing R: Tape & Reel
Operating temperature range I: Industry Standard Package Type V: SOT-23 C: SOT-89 Output Voltage 15: 1.5V 23: 2.3V 25: 2.5V 30: 3.0V
DS7180 Ver1.2
Oct. 2007
3
EUP7180
Absolute Maximum Ratings
Input Voltage -----------------------------------------------------------------------------Operating Junction Temperature Range ----------------------------------------------Storage Temperature Range ------------------------------------------------------------Power Dissipation ,PD @ TA=25C SOT-23 --------------------------------------------------------------------------------------SOT-89 --------------------------------------------------------------------------------------Package Thermal Resistance SOT-23,c JA --------------------------------------------------------------------------------SOT-89,c JA --------------------------------------------------------------------------------ESD Rating Human Body Mode -------------------------------------------------------------------------0.3V to 6V -40C to 150C -65C to 150C 0.4W 0.57W 250C/W 175C/W 2kV
Electrical Characteristics
VIN=VOUT+1V,CIN=1uF,COUT=1uF(Ceramic),TA=25J ,Unless otherwise specified.
Symbol
Parameter
Input Voltage
Conditions
EUP7180 Min Typ Max.
2.3 5.5 3 -3 150
Unit
V % mA
VOUT Output Voltage Accuracy IOUTMAX Output Current VLDR VDROP1 VDROP2 IQ VLNR Ishort Load Regulation Dropout Voltage (Note1) Ground Current Line Regulation Short Circuit Current
IOUT=1mA
1mA IOUT 100mA IOUT=30mA IOUT=100mA No Load IOUT=150mA VIN=(VOUT+1V) to 5.5V, IOUT=1mA IOUT=1mA,TA=-40J to 85J VOUT=GND
10 70 230 1 2.5 0.06 70 100
25 140 400 1.7 0.2
mV mV A %/V ppm/J mA
TCOUT VOUT Temp. Coeff.
Note 1: Dropout is defined as VIN-VOUT when VOUT is 2% below the value of VOUT for VIN=VOUT+1V. This characteristics is suitable for VOUT 2.3V.
DS7180 Ver1.2
Oct. 2007
4
EUP7180
Typical Operating Characteristics
Output Voltage vs. Output Current
2.40 2.35 Output Voltage (V) 2.30 2.25 2.20 2.15 2.10 2.05 2.00 0 25 50 75 100 125 150 Output Current IOUT(mA) VIN=3.3V
Output Voltage (V) 2.40 2.35 2.30 2.25 2.20 2.15 2.10 2.05 2.00 0 20 40 60 80 100 Output Current (mA)
TA=-40J 25J 85J VIN=3.3V
Output Voltage vs. Output Current
Folded Back Current Limit
2.5
2.45 2.40
Output Voltage vs. Input Voltage
Output Voltage (V)
Output Voltage (V)
2.0
2.35 2.30 2.25 2.20 2.15 2.10 IOUT=1mA, 40mA, 100mA
1.5
1.0
0.5 VIN=3.3V 0.0 0 50 100 150 200 250 300 350 400 Output Current (mA)
2.05 2.00 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0
Input Voltage (V)
Output Voltage vs. Input Voltage
2.350
Dropout Voltage vs. Output Current
300 Dropout Voltage (mV) 250 200 150 100 50 0
Output Voltage (V)
2.325
2.300 IOUT=1mA 40mA 100mA
2.275
2.250 2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
30
60
90
120
150
Input Voltage (V)
Output Current (mA)
DS7180 Ver1.2
Oct. 2007
5
EUP7180
Supply Current vs. Input Voltage
2.0
2.0
Supply Current vs. Temperature
Supply Current (uA)
VIN=5V, No Load Supply Current (uA)
1.5
No Load
1.5
1.0
1.0
0.5
0.5
0.0 0 1 2 3 4 5 6 Input Voltage (V)
0.0 -40
-20
0
20
40
60 )
80
100
Ambient Temperature (J
Output Voltage vs. Temperature
2.40 2.38 Output Voltage (V) 2.36 2.34 2.32 2.30 2.28 2.26 2.24 2.22 2.20 -50 -25 0 25 50 ) 75 100 IOUT=40mA IOUT=1mA
Ambient Temperature (J
DS7180 Ver1.2
Oct. 2007
6
EUP7180
DS7180 Ver1.2
Oct. 2007
7
EUP7180
DS7180 Ver1.2
Oct. 2007
8
EUP7180
Application Information
External Capacitors Like any low-dropout regulator, the EUP7180 requires external capacitors for regulator stability. The EUP7180 is specifically designed for portable applications requiring minimum board space and smallest components. These capacitors must be correctly selected for good performance. Input Capacitor A minimum input capacitance of 1F is required between the EUP7180 input pin and ground (the amount of the capacitance may be increased without limit).This capacitor must be located a distance of not more than 1cm from the input pin and returned to a clean analog ground. Any good quality ceramic, tantalum, or film capacitor may be used at the input. If a tantalum capacitor is used at the input, it must be guaranteed by the manufacturer to have a surge current rating sufficient for the application. Output Capacitance The EUP7180 is specifically designed to employ ceramic output capacitors as low as 1F. Ceramic capacitors below 10F offer significant cost and space savings, along with high frequency noise filtering. Higher values and other types and of capacitor may be used, but their equivalent series resistance (ESR) should be maintained below 0.5. Ceramic capacitor of the value required by the EUP7180 are available in the following dielectric types: Z5U, Y5V, X5R, and X7R. The Z5U and Y5V types exhibit a 50% or more drop in capacitance value as their temperature increase from 25C, an important consideration. The X5R generally maintain their capacitance value within 20%. The X7R type are desirable for their tighter tolerance of 10% over temperature.
DS7180 Ver1.2
Oct. 2007
9
EUP7180
Packaging Information
SOT23-3
SYMBOL S A A1 D E1 E L b e
MILLIMETERS MIN. 0.00 2.90 1.60 2.60 0.30 0.30 0.95 3.00 0.60 0.50 0.102 0.012 0.012 MAX. 1.30 0.15 MIN. 0.000
INCHES MAX. 0.052 0.006 0.114 0.063 0.118 0.024 0.020 0.037
DS7180 Ver1.2
Oct. 2007
10
EUP7180
SOT89-3
SYMBOL S A L B1 B C D D1 H E e
MILLIMETERS MIN. MAX. 1.40 1.60 0.89 1.20 0.36 0.48 0.44 0.56 0.35 0.44 4.40 4.60 1.35 1.83 3.94 4.25 2.29 2.60 1.50
INCHES MIN. 0.055 0.035 0.014 0.017 0.014 0.173 0.053 0.155 0.090 0.059
MAX. 0.063 0.047 0.019 0.022 0.017 0.181 0.072 0.167 0.102
DS7180 Ver1.2
Oct. 2007
11

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