ME6117
1A Adjustable Voltage High Speed LDO Regulators ME6117 Series
General Description
Features
The ME6117 series are highly accurate, low noise,
LDO Voltage Regulators that are capable of
providing an output current that is in excess of
800mA with a maximum dropout voltage of 1.2 V at
800mA.This series contains two fixed output
voltages of 3.3 V, and 5.0 V that have no minimum
load requirement to maintain regulation. On chip
trimming adjusts the reference/output voltage to
within ±2% accuracy. Internal protection features
consist of output current limiting, safe operating
area compensation, and thermal shutdown. The
ME6117 series can operate with up to 15 V input.
Devices are available in SOT223.
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Output Current in Excess of 800mA
Dropout Voltage: 120mV@ IOUT =100mA
Operating Voltage Range: 3.6V~15V
Highly Accuracy: ±2%
Adjustable Output Voltage Option
Standby Current: 90uA(TYP.)
High Ripple Rejection: 72dB@1KHz(ME6117A33)
Line Regulation: 0.1%(TYP.)
Temperature Stability≤0.5%
Thermal Shutdown Protection:150℃
Packages:SOT223、SOT89-3
Typical Application
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Selection Guide
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Consumer and Industrial Equipment Point of
Regulation
Switching Power Supply Post Regulation
Hard Drive Controllers
Battery Chargers
Typical Application Circuit
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Page 1 of 11
ME6117
Pin Configuration
SOT223
SOT89-3
Pin Assignment
ME6117AXX
Pin Number
Pin Name
Functions
SOT223
SOT89-3
1
1
GND
Ground
2
3
VOUT
Output
3
2
VIN
Power Input
Absolute Maximum Ratings
Parameter
Symbol
Ratings
Units
Input Voltage
VIN
18
V
Output Current
IOUT
1.1
A
Output Voltage
VOUT
Vss-0.3~VIN +0.3
V
750
mW
500
mW
Power Dissipation
SOT223
SOT89-3
PD
Operating Temperature Range
TOPR
-40~+125
℃
Storage Temperature Range
TSTG
-40~+150
℃
Lead Temperature
V05
260℃,4sec
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Page 2 of 11
ME6117
Block Diagram
Electrical Characteristics
ME6117A33
(VIN= VOUT +1.5V,CIN=CL=10uF,Ta=25OC, unless otherwise noted)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Output Voltage
VOUT(E)
(Note 2)
IOUT=10mA,
VIN= VOUT +1.5V
X 0.98
VOUT (T)
(Note 1)
X 1.02
V
Maximum Output
Current
IOUTMAX
VIN= VOUT +1.5V
800
Load Regulation
∆VOUT
VIN= VOUT +1.5V ,
0mA≤IOUT≤800mA
5
VDIF1
IOUT =100mA
120
mV
VDIF2
IOUT =500mA
620
mV
VDIF3
IOUT =800mA
1050
mV
Quiescent Current
Iss
VIN= VOUT +1.5V
90
uA
Line Regulation
∆VOUT
∆VIN • VOUT
IOUT =0mA
VOUT+1.5V ≤VIN≤15V
2
Dropout Voltage
(Note 3)
Ripple Rejection Rate
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PSRR
VIN = 6.3V
+1Vp-pAC
IOUT=100mA,1kHZ
72
IOUT=200mA,1kHZ
68
IOUT=500mA,1kHZ
61
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mA
10
5
mV
mV
dB
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ME6117
ME6117A50
(VIN= VOUT +1.5V,CIN=CL=10uF,Ta=25OC, unless otherwise noted)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
X 0.98
VOUT (T)
(Note 1)
X 1.02
V
Output Voltage
VOUT(E)
(Note 2)
IOUT=10mA,
VIN= VOUT +1.5V
Maximum Output
Current
IOUTMAX
VIN= VOUT +1.5V
800
Load Regulation
∆VOUT
VIN= VOUT +1.5V ,
0mA≤IOUT≤800mA
5
VDIF1
IOUT =100mA
100
mV
VDIF2
IOUT =500mA
520
mV
VDIF3
IOUT =800mA
880
mV
Quiescent Current
Iss
VIN= VOUT +1.5V
90
uA
Line Regulation
∆VOUT
∆VIN • VOUT
IOUT =0mA
VOUT+1.5V ≤VIN≤15V
2
Dropout Voltage
(Note 3)
Ripple Rejection Rate
PSRR
VIN = 8.0V
+1Vp-pAC
IOUT=100mA,1kHZ
72
IOUT=200mA,1kHZ
68
IOUT=500mA,1kHZ
61
mA
10
5
mV
mV
dB
Note :
1. VOUT (T) :Specified Output Voltage
2.VOUT (E) :Effective Output Voltage ( ie. The output voltage when “VOUT (T)+1.5V”is provided at the Vin pin while
maintaining a certain Iout value.)
3.VDIF:VIN1 –VOUT (E)’
VIN1 :The input voltage when VOUT(E)’ appears as input voltage is gradually decreased.
VOUT (E)’=A voltage equal to 98% of the output voltage whenever an amply stabilized Iout and {VOUT
(T)+1.5V} is input.
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Page 4 of 11
ME6117
Type Characteristics
(1) Output Voltage Change VS. Output Current
(VIN=VOUT+1.5V, Ta = 25 °C)
ME6117A33
(2) Output Voltage Change vs. Temperature
(VIN=VOUT+1.5V , IOUT=10mA)
ME6117A33
Output Voltage Change VS.Temperature
0.0
-0.1
-0.1
-0.2
Output Voltage Change(%)
Output Voltage
Change(%)
Output Voltage Change VS. Output Current
-0.2
-0.3
-0.3
-0.4
0
200
400
600
800
1000
2.00
1.50
1.00
0.50
0.00
-0.50
-1.00
-1.50
-2.00
1200
10
30
50
Output Current(mA)
70
90
110
130
150
Temperature(℃)
(3)Droput Voltage VS. Output Current(Ta = 25 °C) (4)Ripple Rejection vs. Frequency(Io=100mA)
ME6117A33
ME6117A33
Dropout Voltage VS.Output Current
Ripple Rejection VS. Frequency
90
Ripple Rejection (dB)
Dropout Voltage(V)
1200
1000
800
600
400
200
0
80
70
60
50
40
30
0
100
200
300
400
500
600
700
800
10
1000
10000
Frequency(Hz)
Output Current (mA)
V05
100
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Page 5 of 11
ME6117
(5)Output Voltage VS. Input Voltage(Ta = 25 °C) (6)Quiescent Current VS. Iutput Voltage
ME6117A33
ME6117A33
Output Voltage VS. Input Voltage
Quiescent Current VS. Input Voltage
150
3.330
140
Quiescent Current (uA)
Output Voltage(V)
3.320
3.310
3.300
3.290
3.280
130
120
110
100
90
80
70
60
3.270
50
3
5
7
9
11
13
15
17
19
21
Input Voltage(V)
4
6
8
10
12
14
16
18
Input Voltage(V)
(7)Line Transient Response
ME6117A33
Ch1:Input Voltage Ch2:Output Voltage
VIN=4.8V,IOUT=1000mA,Ta = 25 °C
V05
2
(8)Load Transient Response
ME6117A33
Ch1:Onput Voltage Ch2:Load Current
VIN=4.8V,Ta = 25 °C
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Page 6 of 11
ME6117
Applications Information
1. Input Bypass Capacitor
An input capacitor is recommended.A 10uF tantalum on the input is a suitable input bypassing for almost all
applications.
2. Output Capacitor
The output capacitor is critical in maintaining regulator stability,and must meet the required conditions for both
minimum amount of capacitance and ESR (Equivalent Series Resistance).The minimum output capacitance
required by the ME6117 is 10µF,if a tantalum capacitor is used.Any increase of the output capacitance will
merely improve the loop stability and transient response.The ESR of the output capacitor should be less than
0.5Ω .
3. Load Regulation
The ME6117 regulates the voltage that appears between its output and ground pins,or between its output and
adjust pins. In some cases, line resistances can introduce errors to the voltage across the load. To obtain the
best load regulation, a few precautions are needed. Figure1, shows a typical application using a fixed output
regulator.The Rt1 and Rt2 are the line resistances.It is obvious that the VLOAD is less than the VOUT by the sum of
the voltage drops along the line resistances. In this case, the load regulation seen at the RLOAD would be
degraded from the datasheet specification. To improve this , the load should be tied directly to the output terminal
on the positive side and directly tied to the ground terminal on the negative side.
FIGURE 1. Typical Application using Fixed Output Regulator
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ME6117
Application Circuit
(1)Regulator with Reference
(2)Adjusting Output of Fixed Voltage Regulators
(3)Battery Backed−Up Power Supply
(4)Low Dropout Negative Supply
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ME6117
Packaging Information
● SOT223
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ME6117
● SOT89-3
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ME6117
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The information described herein is subject to change without notice.
Nanjing Micro One Electronics Inc is not responsible for any problems caused by circuits or diagrams
described herein whose related industrial properties, patents, or other rights belong to third parties.
The application circuit examples explain typical applications of the products, and do not guarantee the
success of any specific mass-production design.
Use of the information described herein for other purposes and/or reproduction or copying without the
express permission of Nanjing Micro One Electronics Inc is strictly prohibited.
The products described herein cannot be used as part of any device or equipment affecting the human
body, such as exercise equipment, medical equipment, security systems, gas equipment, or any
apparatus installed in airplanes and other vehicles, without prior written permission of Nanjing Micro
One Electronics Inc.
Although Nanjing Micro One Electronics Inc exerts the greatest possible effort to ensure high quality
and reliability, the failure or malfunction of semiconductor products may occur. The user of these
products should therefore give thorough consideration to safety design, including redundancy,
fire-prevention measures, and malfunction prevention, to prevent any accidents, fires, or community
damage that may ensue.
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