R1501x SERIES
1A LDO REGULATOR (Operating Voltage up to 24V)
NO.EA-184-130507
1
OUTLINE
The R1501x series are CMOS-based positive voltage regulator (VR) ICs. The R1501xxxxB has features of high
input voltage operating, 1A output current drive, and low supply current.
A DMOS transistor is used for the driver, high voltage operating and low on resistance (0.6Ω at VOUT=10V)
device is realized. A standard regulator circuit with a current limit circuit and a thermal shutdown circuit are built
in the R1501x series.
As the operating temperature range is from -40°C to 105°C and maximum input voltage is up to 24V, the
R1501x series are suitable for the constant voltage source for digital home appliances and car accessories.
The regulator output voltage is fixed in the R1501x. Output voltage accuracy is ±2.0% and output voltage range
is from 3.0V to 12.0V with a step of 0.1V, and from 12.5V to 18.0V with a step of 0.5V. The chip enable pin
realizes ultra low supply current standby mode.
Since the packages for these ICs are the HSOP-6J for high density mounting of the ICs on boards, and the
TO-252-5-P2.
∗) The DMOS (Double Diffused MOS) transistor adopted by R1501x is characterized by a double diffusion structure which
comprises a low density n-type (channel) diffused layer and a high density p-type (sources) diffused layer from the edge
of the gate electrode. The R1501x series possess outstanding properties of high operating voltage and low on-resistance,
which have been achieved by the channel length scaled down to submicron dimensions and decreased thickness of the
gate oxide film.
FEATURES
• Supply Current .............................................................Typ. 70μA
• Standby Current ...........................................................Typ. 0.1μA
• Output Current..............................................................Min. 1A
• Input Voltage Range ...................................................3.0V to 24.0V
• Ripple Rejection .........................................................Typ. 60dB (VSET=5.0V)
• Output Voltage Range..................................................3.0V to 12.0V (0.1V steps)
12.5V to 18.0V (0.5V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
• Output Voltage Accuracy..............................................±2%
• Temperature-Drift Coefficient of Output Voltage ..........Typ. ±100ppm/°C
• Line Regulation ............................................................Typ. 0.05%/V
• Packages......................................................................HSOP-6J, TO-252-5-P2
• Operating Temperature range ......................................−40°C to 105°C
• Built-in Current Limit Circuit
• Built-in Fold-Back Circuit
• Built-in Thermal Shutdown Circuit
APPLICATIONS
• Power source for home appliances such as refrigerators, rice cookers, electric water warmers, etc.
• Power source for car audio equipment, car navigation system, ETC system, etc.
• Power source for notebook PCs, digital TVs, cordless phones, and private LAN system, etc.
• Power source for office equipment machines such as copiers, printers, facsimiles, scanners, projectors, etc.
R1501x
2
BLOCK DIAGRAMS
R1501xxxxB
V
DD
V
OUT
CE GND
Current Limit
Short
Protection
Vref
Thermal Shutdown
Circuit
SELECTION GUIDE
The output voltage, package, etc. for the ICs can be selected at the user’s request.
Product Name Package Quantity per Reel Pb Free Halogen Free
R1501SxxxB-E2-FE HSOP-6J 1,000 pcs Yes Yes
R1501JxxxB-T1-FE TO-252-5-P2 3,000 pcs Yes Yes
xxx : The output voltage can be designated in the range from 3.0V(030) to 12.0V(120) in 0.1V steps and
12.5V(125) to 18.0V(180) in 0.5V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
R1501x
3
PIN CONFIGURATIONS
• HSOP-6J • TO-252-5-P2
1 3
6 4
2
5
1 2 3 4 5
PIN DESCRIPTIONS
• HSOP-6J
Pin No Symbol Pin Description
1 VDD Input Pin
2 GND* Ground Pin
3 GND* Ground Pin
4 CE Chip Enable Pin ("H" Active)
5 GND* Ground Pin
6 VOUT Output Pin
∗) No.2, No.3 and No.5 pins must be wired short each other and connected to the GND plane when it is
mounted on board.
• TO-252-5-P2
Pin No Symbol Pin Description
1 VDD Input Pin
2 GND* Ground Pin
3 GND* Ground Pin
4 CE Chip Enable Pin ("H" Active)
5 VOUT Output Pin
∗) No.2 and No.3 pins must be wired short each other and connected to the GND plane when it is mounted on
board.
R1501x
4
ABSOLUTE MAXIMUM RATINGS
Symbol Item Rating Unit
VIN Input Voltage −0.3 to 36 V
VCE Input Voltage (CE Pin) −0.3 to VIN + 0.3
<
=
36 V
VOUT Output Voltage −0.3 to VIN + 0.3
<
=
36 V
Power Dissipation (HSOP-6J)* 1700
PD
Power Dissipation (TO-252-5-P2)* 1900
mW
Topt Operating Temperature Range −40 to 105 °C
Tj Operating Junction Temperature Range −40 to 125 °C
Tstg Storage Temperature Range −55 to 125 °C
∗) For Power Dissipation, please refer to PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field.
The functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
R1501x
5
ELECTRICAL CHARACTERISTICS
• R1501xxxxB
VIN=VSET+1.0V, VCE=VIN, unless otherwise noted.
The specification in is checked and guaranteed by design engineering at −40°C
<
=
Topt
<
=
105°C.
Topt =25°C
Symbol Item Conditions Min. Typ. Max. Unit
VIN Input Voltage 3 24 V
Topt=25°C ×0.98 ×1.02 V
VOUT Output Voltage IOUT=1mA −40°C
<
=
Topt
<
=
105°C ×0.965 ×1.035 V
ISS Supply Current VIN=24V, IOUT=0A 70
160 μA
Istandby Standby Current VIN=24V, VCE=0V 0.1
1.0 μA
0.1mA
<
=
IOUT
<
=
200mA 25
60 mV
ΔVOUT/ΔIOUT Load Regulation
0.1mA
<
=
IOUT
<
=
1A ∗guaranteed by design
engineering 125
300 mV
ΔVOUT/ΔVIN Line Regulation VSET+1V
<
=
VIN
<
=
24V, IOUT=10mA 0.05
0.1 %/V
3.0V
<
=
VSET < 5.0V 0.135 0.225
5.0V
<
=
VSET < 9.0V 0.115 0.180
9.0V
<
=
VSET < 12.0V 0.095 0.155
IOUT=200mA
12.0V
<
=
VSET
<
=
18.0V 0.090
0.140
V
3.0V
<
=
VSET < 5.0V 0.675 1.125
5.0V
<
=
VSET < 9.0V 0.575 0.900
9.0V
<
=
VSET < 12.0V 0.475 0.775
VDIF Dropout Voltage
IOUT=1A
∗guaranteed by
design engineering
12.0V
<
=
VSET
<
=
18.0V 0.450
0.700
V
ΔVOUT/ΔTopt Output Voltage
Temperature Coefficient
IOUT=1mA
−40°C
<
=
Topt
<
=
105°C ±100 ppm
/°C
ILIM Output Current 1 A
ISC Short Current Limit VOUT=0V 65 mA
VSET
<
=
6.0V 60
RR Ripple Rejection
f=1kHz, Ripple 0.5Vp-p,
IOUT=100mA,
VIN=VSET+2V VSET > 6.0V 50
dB
VCEH CE Input Voltage "H" 2.0 V
IN V
VCEL CE Input Voltage "L" 0 0.5 V
TTSD Thermal Shutdown
Temperature Junction Temperature 160 °C
TTSR Thermal Shutdown
Released Temperature Junction Temperature 135 °C
All of unit are tested and specified under load conditions such that Topt=25°C except for Output Voltage
Temperature Coefficient, Ripple Rejection, Thermal Shutdown Temperature, Thermal Shutdown Released
Temperature, Load Regulation at 0.1mA
<
=
IOUT
<
=
1A, Dropout Voltage at IOUT=1A.
R1501x
6
TYPICAL APPLICATION
C1 R1501x
Series
VDD VOUT
CE GND
C2
VOUT
C1=Ceramic 0.47
μ
F
C2=Ceramic 10μF
(External Components)
C2: Ceramic 10μF MURATA: GRM32DB31E106K (size: 3225)
TECHNICAL NOTES
When using these ICs, consider the following points:
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a capacitor C2 with good frequency characteristics and ESR (Equivalent Series Resistance).
If you use a tantalum type capacitor and ESR value of the capacitor is large, output might be unstable. Evaluate
your circuit with considering frequency characteristics.
Depending on the capacitor size, manufacturer, and part number, the bias characteristics and temperature
characteristics are different. Evaluate the circuit with actual using capacitors.
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor C1 with a capacitance value as much as 0.47μF or more between VDD and GND pin, and as
close as possible to the pins.
Set external components, especially the output capacitor C2, as close as possible to the ICs, and make wiring
as short as possible.
No.2 pin, No.3 pin and No.5 pin of HSOP-6J package must be wired to the GND plane when it is mounted on
board. No.2 pin and No.3 pin of TO-252-5-P2 package must be wired to the GND plane when it is mounted on
board.
R1501x
7
TYPICAL APPLICATION FOR PREVENTING IC DESTRUCTION
C1 R1501x
Series
V
DD
V
OUT
CE GND
C2
V
OUT
D1
D2
C1: 0.47μF or more (preventing for unstable operation)
C2: 10μF or more (preventing for unstable operation)
D1: If VOUT pin could be higher than VIN pin, D1 is necessary.
D2: If VOUT pin could be lower than GND pin, SBD is necessary.
Note: Do not force the voltage to VOUT pin.
R1501x
8
TEST CIRCUITS
C1 R1501x
Series
VDD VOUT
CE GND
V
C2 VOUT IOUT
C1=Ceramic 0.47
μ
F
C2=Ceramic 10μF
Basic Test Circuit
C1 R1501x
Series
VDD VOUT
CE GND
C2A ISS
C1=Ceramic 0.47
μ
F
C2=Ceramic 10μF
VOUT
Test Circuit for Supply Current
R1501x
Series
VDD VOUT
CE GND
C2
Pulse
Generator
IOUT
C2=Ceramic 10
μ
F
P. G.
Test Circuit for Ripple Rejection, Input Transient Response
R1501x
9
C1 R1501x
Series
V
DD
V
OUT
CE GND
C2
I
OUTa
I
OUTb
C1=Ceramic 0.47
μ
F
C2=Ceramic 10μF
V
OUT
Test Circuit for Load Transient Response
R1501x
Series
V
DD
V
OUT
CE GND
C2
Pulse
Generator
I
OUT
P. G.
C1
∗ CE pin Input Waveform
0V
Set V
OUT+
1.0V
C1=Ceramic 0.47μF
C2=Ceramic 10μF
Test Circuit for Turn On Speed with CE pin
R1501x
10
TYPICAL CHARACTERISTICS ∗Topt=25°C, unless otherwise noted.
1) Output Voltage vs. Output Current (C1=Ceramic 0.47μF, C2=Ceramic 10μF)
R1501x030B R1501x050B
0 0.5 1.51.0 2.0
Output Current IOUT (A)
Output Voltage VOUT (V)
0
3.5
2.5
2.0
1.5
3.0
1.0
0.5
VIN=3.5V
VIN=4.0V
VIN=5.0V
0 0.5 1.51.0 2.0
Output Current IOUT (A)
Output Voltage VOUT (V)
0
6.0
4.0
3.0
2.0
5.0
1.0
VIN=5.5V
VIN=6.0V
VIN=7.0V
R1501x090B R1501x180B
0 0.5 1.51.0 2.0
Output Current IOUT (A)
Output Voltage VOUT (V)
0
10.0
6.0
4.0
2.0
8.0
VIN=9.5V
VIN=10.0V
VIN=11.0V
0 0.5 1.51.0 2.0
Output Current IOUT (A)
Output Voltage VOUT (V)
0
20.0
12.0
8.0
4.0
16.0
VIN=18.5V
VIN=19.0V
VIN=20.0V
2) Output Voltage vs. Input Voltage (C1=Ceramic 0.47μF, C2=Ceramic 10μF)
R1501x030B R1501x050B
031425
0
3.5
2.5
2.0
1.5
3.0
1.0
0.5
IOUT=0.1mA
IOUT=100mA
IOUT=500mA
Input Voltage
VIN (V)
Output Voltage VOUT (V)
04628
0
6
5
4
3
2
1
IOUT=0.1mA
IOUT=100mA
IOUT=500mA
Input Voltage VIN (V)
Output Voltage VOUT (V)
R1501x
11
R1501x090B R1501x180B
069312
0
10
8
6
4
2IOUT=0.1mA
IOUT=100mA
IOUT=500mA
Input Voltage
VIN (V)
Output Voltage VOUT (V)
01218624
Input Voltage
VIN (V)
Output Voltage VOUT (V)
0
20
16
12
8
4IOUT=0.1mA
IOUT=100mA
IOUT=500mA
3) Supply Current vs. Input Voltage (C1=Ceramic 0.47μF, C2=Ceramic 10μF)
R1501x030B R1501x050B
031425
0
100
40
60
80
20
Input Voltage
VIN (V)
Supply Current ISS
(μA)
04628
0
100
60
40
80
20
Input Voltage
VIN (V)
Supply Current ISS
(μA)
R1501x090B R1501x180B
069312
0
100
60
40
80
20
Input Voltage
VIN (V)
Supply Current ISS
(μA)
01218624
Input Voltage VIN (V)
Supply Current ISS
(μA)
0
100
60
40
80
20
R1501x
12
4) Output Voltage vs. Temperature (C1=Ceramic 0.47μF, C2=Ceramic 10μF, IOUT=1mA)
R1501x030B R1501x050B
-40 -25 75500 25 100
Temperature Topt (°C)
Output Voltage V
OUT
(V)
2.7
3.3
3.2
3.1
3.0
2.9
2.8
V
IN
=4.0V
-40 -25 75500 25 100
Temperature Topt (°C)
Output Voltage VOUT (V)
4.5
5.5
5.3
5.1
4.9
4.7
VIN=6.0V
R1501x090B R1501x180B
-40 -25 75500 25 100
Temperature Topt (°C)
Output Voltage V
OUT
(V)
8.1
9.9
9.6
9.3
9.0
8.7
8.4
VIN=10.0V
-40 -25 75500 25 100
Temperature Topt (°C)
Output Voltage V
OUT
(V)
16.2
19.8
19.2
18.6
18.0
17.4
16.8
V
IN
=19.0V
5) Supply Current vs. Temperature (C1=Ceramic 0.47μF, C2=Ceramic 10μF, IOUT=0mA)
R1501x030B R1501x050B
-40 -25 75500 25 100
Temperature Topt (°C)
Output Voltage V
OUT
(V)
20
120
100
80
60
40
V
IN
=4.0V
-40 -25 75500 25 100
Temperature Topt (°C)
Output Voltage V
OUT
(V)
20
120
100
80
60
40
V
IN
=6.0V
R1501x
13
R1501x090B R1501x180B
-40 -25 75500 25 100
Temperature Topt (°C)
Output Voltage V
OUT
(V)
20
120
100
80
60
40
V
IN
=10.0V
-40 -25 75500 25 100
Temperature Topt (°C)
Output Voltage V
OUT
(V)
20
120
100
80
60
40
V
IN
=19.0V
6) Dropout Voltage vs. Output Current (C1=Ceramic 0.47μF, C2=Ceramic 10μF)
R1501x030B R1501x050B
0 600 800400200 1000
Output Current IOUT (mA)
Dropout Voltage VDIF (mV)
0
1200
1000
800
600
400
200
105°C
25°C
-40°C
0 600 800400200 1000
Output Current IOUT (mA)
Dropout Voltage VDIF (mV)
0
1200
1000
800
600
400
200
105°C
25°C
-40°C
R1501x090B R1501x180B
0 600 800400200 1000
Output Current IOUT (mA)
Dropout Voltage VDIF (mV)
0
1200
1000
800
600
400
200
105°C
25°C
-40°C
0 600 800400200 1000
Output Current IOUT (mA)
Dropout Voltage VDIF (mV)
0
1200
1000
800
600
400
200
105°C
25°C
-40°C
R1501x
14
7) Dropout Voltage vs. Set Output Voltage (C1=Ceramic 0.47μF, C2=Ceramic 10μF)
01510520
Set Output Voltage VREG (V)
Dropout Voltage VDIF (mV)
900
700
500
200
800
600
300
400
100
0
1000mA
800mA
600mA
400mA
200mA
10mA
8) Ripple Rejection vs. Input Bias Voltage (C1=none, C2=Ceramic 10μF, IOUT=100mA)
R1501x030B R1501x030B
3.0 4.5 5.55.04.03.5 6.0
Input Bias V
IN
(V)
Ripple Rejection RR (dB)
0
100
80
60
40
20
90
70
50
30
10
120Hz
1kHz
10kHz
Ripple=0.5Vp-p
3.0 4.5 5.55.04.03.5 6.0
Input Bias V
IN
(V)
Ripple Rejection RR (dB)
0
100
80
60
40
20
90
70
50
30
10
120Hz
1kHz
10kHz
Ripple=0.2Vp-p
R1501x050B R1501x050B
5.0 6.5 7.57.06.05.5 8.0
Input Bias V
IN
(V)
Ripple Rejection RR (dB)
0
100
80
60
40
20
90
70
50
30
10
120Hz
1kHz
10kHz
Ripple=0.5Vp-p
5.0 6.5 7.57.06.05.5 8.0
Input Bias V
IN
(V)
Ripple Rejection RR (dB)
0
100
80
60
40
20
90
70
50
30
10
120Hz
1kHz
10kHz
Ripple=0.2Vp-p
R1501x
15
R1501x090B R1501x090B
9.0 10.5 11.511.010.09.5 12.0
Input Bias V
IN
(V)
Ripple Rejection RR (dB)
0
100
80
60
40
20
90
70
50
30
10
120Hz
1kHz
10kHz
Ripple=0.5Vp-p
9.0 10.5 11.511.010.09.5 12.0
Input Bias V
IN
(V)
Ripple Rejection RR (dB)
0
100
80
60
40
20
90
70
50
30
10
120Hz
1kHz
10kHz
Ripple=0.2Vp-p
R1501x180B R1501x180B
18.0 19.5 20.520.019.018.5 21.0
Input Bias V
IN
(V)
Ripple Rejection RR (dB)
0
100
80
60
40
20
90
70
50
30
10
120Hz
1kHz
10kHz
Ripple=0.5Vp-p
18.0 19.5 20.520.019.018.5 21.0
Input Bias V
IN
(V)
Ripple Rejection RR (dB)
0
100
80
60
40
20
90
70
50
30
10
120Hz
1kHz
10kHz
Ripple=0.2Vp-p
9) Ripple Rejection vs. Frequency (C1=none, C2=Ceramic 10μF, Ripple=0.5Vp-p)
R1501x030B R1501x050B
300mA
100mA
1mA
0
10
20
30
100
70
40
90
50
80
60
V
IN
=4.0V
Frequency f (kHz)
Ripple Rejection RR (dB)
0.1 10 1001 1000
300mA
100mA
1mA
0
10
20
30
100
70
40
90
50
80
60
V
IN
=6.0V
Ripple Rejection RR (dB)
0.1 10 1001 1000
Frequency f (kHz)
R1501x
16
R1501x090B R1501x180B
300mA
100mA
1mA
0
10
20
30
100
70
40
90
50
80
60
V
IN
=10.0V
Ripple Rejection RR (dB)
0.1 10 1001 1000
Frequency f (kHz)
300mA
100mA
1mA
0
10
20
30
100
70
40
90
50
80
60
V
IN
=19.0V
Ripple Rejection RR (dB)
0.1 10 1001 1000
Frequency f (kHz)
10) Input Transient Response (C1=none, C2=Ceramic 10μF, IOUT=100mA, tr=tf=10μs)
R1501x030B R1501x050B
200100 150050
4
8
2.8
2.9
3.0
3.1
12
Time t (μs)
Input Voltage VIN (V)
Output Voltage VOUT (V)
Output Voltage
Input Voltage
4V 8V
200100 150050
6
10
4.8
4.9
5.0
5.1
14
Time t (μs)
Input Voltage VIN (V)
Output Voltage VOUT (V)
Output Voltage
Input Voltage
6V 10V
R1501x090B R1501x180B
200100 150050
10
14
8.8
8.9
9.0
9.1
18
Input Voltage
VIN (V)
Output Voltage VOUT (V)
Time t (μs)
Output Voltage
Input Voltage
10V 14V
200100 150050
17.8
17.9
18.0
18.1
23
27
19
Input Voltage
VIN (V)
Time t (μs)
Output Voltage VOUT (V)
Output Voltage
Input Voltage
19V 23V
R1501x
17
11) Load Transient Response (C1=Ceramic 0.47μF, C2=Ceramic 10μF, tr=tf=0.5μs)
R1501x030B R1501x050B
30050 2000 250100 150
Output Voltage V
OUT
(V)
0
250
500
2.8
3.1
2.9
3.0
Output Current I
OUT
(mA)
750
Time t (μs)
Output Voltage
Output Current
50mA 500mA
V
IN
=4.0V
30050 2000 250100 150
Output Voltage V
OUT
(V)
0
250
500
4.8
5.1
4.9
5.0
Output Current I
OUT
(mA)
750
Time t (μs)
Output Voltage
Output Current
50mA 500mA
V
IN
=6.0V
R1501x090B R1501x180B
30050 2000 250100 150
Output Voltage VOUT (V)
0
250
500
8.8
9.1
8.9
9.0
Output Current IOUT (mA)
750
Time t (μs)
Output Voltage
Output Current
50mA 500mA
VIN=10.0V
Output Voltage
Output Current
50mA 500mA
30050 2000 250100 150
Output Voltage VOUT (V)
0
250
500
17.8
18.1
17.9
18.0
Output Current IOUT (mA)
750
Time t (μs)
VIN=19.0V
12) Turn On Speed with CE pin (C1=Ceramic 0.47μF, C2=Ceramic 10μF, tr=tf=0.5μs)
R1501x030B R1501x030B
3002001500 25010050
Output Voltage V
OUT
(V)
2
0
4
0
3
1
2
CE Input Voltage V
CE
(V)
6
Time t (μs)
I
OUT
=100mA
Output Voltage
CE Input Voltage
3002001500 25010050
Output Voltage V
OUT
(V)
2
0
4
0
3
1
2
CE Input Voltage V
CE
(V)
6
Time t (μs)
I
OUT
=500mA
Output Voltage
CE Input Voltage
R1501x
18
R1501x050B R1501x050B
3002001500 25010050
Output Voltage V
OUT
(V)
3
0
6
0
6
2
4
CE Input Voltage V
CE
(V)
9
Time t (μs)
I
OUT
=100mA
Output Voltage
CE Input Voltage
3002001500 25010050
Output Voltage V
OUT
(V)
3
0
6
0
6
2
4
CE Input Voltage V
CE
(V)
9
Time t (μs)
I
OUT
=500mA
Output Voltage
CE Input Voltage
R1501x090B R1501x090B
3002001500 25010050
Output Voltage V
OUT
(V)
5
0
10
0
9
3
6
CE Input Voltage V
CE
(V)
15
Time t (μs)
I
OUT
=100mA
Output Voltage
CE Input Voltage
3002001500 25010050
Output Voltage V
OUT
(V)
5
0
10
0
9
3
6
CE Input Voltage V
CE
(V)
15
Time t (μs)
I
OUT
=500mA
Output Voltage
CE Input Voltage
R1501x180B R1501x180B
6004003000 500200100
Output Voltage V
OUT
(V)
10
0
20
0
18
6
12
CE Input Voltage V
CE
(V)
30
Time t (μs)
I
OUT
=100mA
Output Voltage
CE Input Voltage
6004003000 500200100
Output Voltage V
OUT
(V)
10
0
20
0
18
6
12
CE Input Voltage V
CE
(V)
30
Time t (μs)
I
OUT
=500mA
Output Voltage
CE Input Voltage
R1501x
19
13) Turn Off Speed with CE (C1=Ceramic 0.47μF, C2=Ceramic 10μF, IOUT=500mA, tr=tf=0.5μs)
R1501x030B R1501x050B
6004003000 500200100
Output Voltage V
OUT
(V)
2
0
4
0
1
3
2
CE Input Voltage V
CE
(V)
6
Time t (μs)
Output Voltage
CE Input Voltage
6004003000 500200100
Output Voltage V
OUT
(V)
3
0
6
0
2
6
4
CE Input Voltage V
CE
(V)
9
Time t (μs)
Output Voltage
CE Input Voltage
R1501x090B R1501x180B
12008006000 1000400200
Output Voltage V
OUT
(V)
5
0
10
0
3
9
6
CE Input Voltage V
CE
(V)
15
Time t (μs)
Output Voltage
CE Input Voltage
240016001200
0
2000
800400
Output Voltage V
OUT
(V)
10
0
20
0
6
18
12
CE Input Voltage V
CE
(V)
30
Time t (μs)
Output Voltage
CE Input Voltage
R1501x
20
ESR vs. Output Current
When using these ICs, consider the following points:
The relations between IOUT (Output Current) and ESR of an output capacitor are shown below.
The conditions when the white noise level is under the specified certain level are marked as the hatched area
in the graph.
Measurement conditions
Input Voltage : VOUT +1V to 24V
Frequency Band : 10Hz to 1MHz
Temperature : −40°C to 105°C
Capacitor : C1=Ceramic 0.47μF
C2=Ceramic 10μF
R1501x030B R1501x030B
Noise level
<
=
40μVrms Noise level
<
=
40μVrms
0 200 600400 800 900100 500300 700 1000
Output Current IOUT (mA)
ESR (Ω)
VIN=4V to 24V
0.01
1000
1
0.1
10
100
020404510 3015 35525 50
Output Current IOUT (mA)
ESR (Ω)
0.01
1000
1
0.1
10
100
VIN=4V to 24V
R1501x050B R1501x050B
Noise level
<
=
50μVrms Noise level
<
=
50μVrms
0 200 600400 800 900100 500300 700 1000
Output Current IOUT (mA)
ESR (Ω)
VIN=6V to 24V
0.01
1000
1
0.1
10
100
020404510 3015 35525 50
Output Current IOUT (mA)
ESR (Ω)
0.01
1000
1
0.1
10
100
VIN=6V to 24V
R1501x
21
R1501x090B R1501x090B
Noise level
<
=
120μVrms Noise level
<
=
120μVrms
0 200 600400 800 900100 500300 700 1000
Output Current IOUT (mA)
ESR (Ω)
VIN=10V to 24V
0.01
1000
1
0.1
10
100
020404510 3015 35525 50
Output Current IOUT (mA)
ESR (Ω)
0.01
1000
1
0.1
10
100
VIN=10V to 24V
R1501x180B R1501x180B
Noise level
<
=
220μVrms Noise level
<
=
220μVrms
0 200 600400 800 900100 500300 700 1000
Output Current IOUT (mA)
ESR (Ω)
VIN=19V to 24V
0.01
1000
1
0.1
10
100
020404510 3015 35525 50
Output Current IOUT (mA)
ESR (Ω)
0.01
1000
1
0.1
10
100
VIN=19V to 24V
RICOHCOMPANY,LTD.
ElectronicDevicesCompany
http://www.ricoh.com/LSI/
For the conservation of the global environment, Ricoh is advancing the decrease of the negative environmental impact material.
After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.
Basically after Apr. 1, 2012, we will ship out the Power Management ICs of the Halogen Free products only. (Ricoh Halogen Free products are
also Antimony Free.)
Halogen Free
RICOHCOMPANY,LTD.
ElectronicDevicesCompany
●Higashi-ShinagawaOffice(InternationalSales)
3-32-3,Higashi-Shinagawa,Shinagawa-ku,Tokyo140-8655,Japan
Phone:+81-3-5479-2857Fax:+81-3-5479-0502
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●SemiconductorSupportCentre
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P.O.Box114,1180ACAmstelveen
Phone:+31-20-5474-309Fax:+31-20-5474-791
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Phone:+82-2-2135-5700Fax:+82-2-2135-5705
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Room403,No.2Building,690#BiBoRoad,PuDongNewdistrict,Shanghai201203,
People'sRepublicofChina
Phone:+86-21-5027-3200Fax:+86-21-5027-3299
RICOHCOMPANY,LTD.
ElectronicDevicesCompany
●Taipeioffice
Room109,10F-1,No.51,HengyangRd.,TaipeiCity,Taiwan(R.O.C.)
Phone:+886-2-2313-1621/1622Fax:+886-2-2313-1623
1.Theproductsandtheproductspecificationsdescribedinthisdocumentaresubjecttochangeor
discontinuationofproductionwithoutnoticeforreasons
suchasimprovement.Therefore,before
decidingtousetheproducts,pleaserefertoRicohsalesrepresentativesforthelatest
informationthereon.
2.Thematerialsinthisdocumentmaynotbecopiedorotherwisereproducedinwholeorinpart
withoutpriorwrittenconsentofRicoh.
3.Pleasebesuretotakeanynecessaryformalitiesunderrelevantlawsorregulationsbefore
exportingorotherwisetakingoutofyourcountrytheproductsorthetechnicalinformation
describedherein.
4.Thetechnicalinformationdescribedinthisdocumentshowstypicalcharacteristicsofand
exampleapplicationcircuitsfortheproducts.Thereleaseofsuchinformationisnottobe
construedasawarrantyoforagrantoflicenseunderRicoh'soranythirdparty'sintellectual
propertyrightsoranyotherrights.
5.
Theproductslistedinthisdocumentareintendedanddesignedforuseasgeneralelectronic
componentsinstandardapplications(officeequipment,telecommunicationequipment,
measuringinstruments,consumerelectronicproducts,amusementequipmentetc.).Those
customersintendingtouse
aproductinanapplicationrequiringextremequalityandreliability,
forexample,inahighlyspecificapplicationwherethefailureormisoperationoftheproduct
couldresultinhumaninjuryordeath(aircraft,spacevehicle,nuclearreactorcontrolsystem,
trafficcontrolsystem,automotiveand
transportationequipment,combustionequipment,safety
devices,lifesupportsystemetc.)shouldfirstcontactus.
6.Wearemakingourcontinuousefforttoimprovethequalityandreliabilityofourproducts,but
semiconductorproductsarelikelytofailwithcertainprobability.Inordertopreventanyinjuryto
personsordamagestopropertyresultingfromsuchfailure,customersshouldbecarefulenough
toincorporatesafetymeasuresintheirdesign,suchasredundancyfeature,firecontainment
featureandfail-safefeature.Wedonotassumeanyliability
orresponsibilityforanylossor
damagearisingfrommisuseorinappropriateuseoftheproducts.
7.Anti-radiationdesignisnotimplementedintheproductsdescribedinthisdocument.
8.
PleasecontactRicohsalesrepresentativesshouldyouhaveanyquestionsorcomments
concerningtheproductsorthetechnicalinformation.